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HEAVY-PLATE MILLSHEAVY-PLATE MILLSReferences

METALLURGICAL PLANT and ROLLING MILL TECHNOLOGY

Hot rolling mills

SMS SIEMAG

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Heavy-plate millsSMS SIEMAG

THE FASCINATING WORLD

OF HEAVY PLATE

Sky-scrapers, and drilling rigs on the high seas, bridgeswith giant spans and slender wind turbines, pipelinesstretching into infinity and gasholders for enormouspressures, excavators, mobile cranes, container ships,luxury liners – heavy plate is a growth market thanks toits versatile spectrum of applications. Heavy-plate millsfrom SMS Siemag allow steelmakers to cover the entirerange of products and to supply plates with tailor-madematerial properties for every envisaged application.

X-ROLL® HEAVY-PLATE MILLS X-ROLL® HEAVY-PLATE MILLSfrom SMS Siemag

THE MOST STRINGENT DEMANDS

The most important market trend is the demand forplates with increasingly higher strengths, a demandthat will definitely continue to rise over the next fewyears, for example with a view to enhancing thetransport capacity of oil and gas pipelines withoutneed to enlarge the wall thicknesses. Further require-ments are high toughness, hardness and good weld-ability. At the same time, ever closer tolerances arebeing demanded in respect of dimensional accuracyand flatness.

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X-Roll® characterizes the family of brands from our HotRolling Mills division. It symbolizes plants and technicalequipment for the economical and flexible production ofhot strip and heavy plate.

MODERN PRODUCTION PROCESSES

Today, thermomechanical rolling is the most impor-tant production process for the manufacture of high-strength plates. In this method, the temperatures arespecified and set exactly for finish-rolling and for cool-ing in the plate-cooling systems. The carefully target-ed control of these complex processes requires closeinteraction between the mechanical equipment andthe automation systems.


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SOLUTIONS FROM A SINGLE SOURCE

As system suppliers, we offer our customers thecomplete plant technology from a single source.Our integrated solutions comprising mechanicalengineering, electrical and automation systems andprocess know-how enable the plant potential to beutilized optimally in order to manufacture plates with-in narrow geometrical tolerances, with the desiredmechanical and technological properties and withhigh productivity.

X-ROLL® HEAVY-PLATE MILLS X-ROLL® HEAVY-PLATE MILLSfrom SMS Siemag

OUR SUCCESS FACTORS

Tailor-made plant concepts that are adapted to thecustomer's requirements and to the local condi-tions and also allow expansionMechanical equipment is of high quality thanks toour own manufacture of core components and topre-assembly in our workshop Integrated solutions for mechanical equipment,electrical and automation systems and processknow-howContinuous further development of design andplant technologyPre-optimization and pre-commissioning of theautomation systems by means of Plug&Work testsProfessional project management including erectionand commissioning of the plants, training of theoperating personnel and comprehensive service.

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CONTENTS

Posco, South Korea (5.5 m) 6

Angang Steel, China (5.5 / 5.0 m) 8

Baoshan Iron & Steel, China (5.0 m) 10

MMK, Russia (5.0 m) 12

Minmetals Yingkou, China (5.0 m) 14

Hyundai Steel No. 1, South Korea (5.0 m) 16

Vyksa Steel, Russia (5.0 m) 18

Tangshan Iron & Steel, China (5.0 m) 20

Nanjing Iron & Steel, China (4.7 m) 22

Qinhuangdao Shouquin, China (4.3 m) 24

Dongkuk Steel, South Korea (4.3 m) 26

Baoshan Iron & Steel (Luojing),China (4.3 m) 28

Rourkela Steel Plant, India (4.3 m) 30

Hyundai Steel No. 2, South Korea (4.3 m) 32

Baotou Iron & Steel, China (3.8 m) 34

Xiangtan Iron & Steel, China (3.8 m) 36

Xinyu Iron & Steel, China (3.8 m) 38

SSAB, Sweden (3.7 m) 40

SSAB North America,USA (Steckel/Plate rolling mill) 42

Maghreb Steel, Morocco (2.8 m) 44

Plant layouts 46


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POSCOPOSCO5.5 m heavy-plate millGwangyang, South Korea

Posco awarded us the honor of "Outstanding Supplier ofthe Year" even while the supply was still being made.

PLATE WIDTH OF

5.3 METERS FROM THE

ROUGHING STAND TO THE

FINISHING STAND

The Posco heavy-plate mill is so far theonly one worldwide to be designed forplates with a width of up to 5,300 mmover the entire process line. With thistwo-stand facility, the South Koreansteelmaker has expanded its capacityby 2.5 million tons per year. Posco'sCEO emphasized the significance of therolling mill at the time of its inaugura-tion: “Posco has become an undisputedworld’s largest steel plate manufacturerwith the completion of this thick steelplate plant in Gwangyang. This factorywill relieve supply shortages in domes-tic industries such as shipbuilding, andcontribute to increasing global competi-tiveness of clients by providing theworld’s best quality thick steel platesefficiently when needed.”

At Posco, we have installed a two-partspray cooling system for the first time.It operates over the whole length withhighly efficient spray nozzles and pos-sesses two pressure ranges. Thisenables Posco to achieve very highcooling rates and to flexibly implementthe various cooling strategies. To ensuregood flatness also at high cooling rates,the plate is guided between wrapperrolls in the high-pressure range in thefront part of the cooling system. A pre-leveler ensures that the result of thecooling action is not impaired by anyunevenness in the rolling stock.

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SCOPE OF SUPPLY

High-pressure descalerFour-high reversing roughing standwith edger (entry end) - Hydraulic adjustment systems- Roll force 120 MNFour-high reversing finishing stand - Hydraulic adjustment systems- Work roll bending- Roll force 120 MNSpray cooling with pre-levelerHot plate leveler Crop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler

TECHNICAL DATA

Commissioning August 2010

Annual production 2.5 million t

Steel gradesStructural steel, shipbuilding steel, offshoresteel, pipe grades up to X120, pressure vesselsteel

SlabThickness 250 to 400 mmWidth 1,600 to 2,400 mmWeight max. 28.0 t

Finished plateThickness 6 to 200 mmWidth 1,400 to 5,300 mmLength 7 to 25 mWeight max. 28.0 t

For plant layout, see page 46.


ANGANG STEELANGANG STEEL5.5/5.0 m heavy-plate millYingkou, China

Inspection of the plates aftercutting to finished dimensions.

Diameter: 2,400 mm, length: 5,400 mm: the backuprolls of the roughing stand.

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CHINA'S FIRST

5.5 M MILLSTAND

The heavy plate mill at Angang SteelCompany went into operation in August2008. The two-stand mill line consists ofa 5.5 m roughing stand and a 5.0 m fin-ishing stand. The roughing stand wasChina's first 5.5 m heavy-plate millstandand the widest to have gone into opera-tion worldwide for over 30 years. The 5.0 m finishing stand is equipped withour CVC® plus technology.

The roughing stand has a rapid mechani-cal screwdown system in addition to thehydraulic roll-gap adjustment system, soas to enable the roll gap to be openedextremely quickly during the rolling ofingots. The maximum roll force is 105MN. A vertical edger at the exit end ofthe roughing stand ensures the precisesetting of the plate width.

The capacity of the mill is two milliontons of heavy plate per year. The productrange of Angang Steel comprises all ofthe grades required on the market today,including plates for shipbuilding, pressurevessels and containers, high-strengthstructural steels and pipe grades. Itsproximity to the ocean-going port ofYingkou gives Angang Steel good accessto the export markets.

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SCOPE OF SUPPLY

5.5 m four-high reversing roughing standwith edger (exit end)- Hydraulic adjustment systems- Work roll bending- Roll force 105 MN5.0 m four-high reversing finishing stand - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 100 MNCombined spray and laminar cooling Hot plate leveler Crop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler

X-Pact® automation system for- Finishing stand (Profile and Flatness Control)- Spray and laminar cooling- Hot plate leveler- 9/5 cold plate leveler

TECHNICAL DATA

Commissioning August 2008


Steel gradesStructural steel, shipbuilding steel, pipe grades,pressure vessel steel, container steel, bridge-building steel and other structural steels


IngotsThickness max. 1,000 mmWeight max. 60.0 t




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BAOSHAN IRON & STEELBAOSHAN IRON & STEEL5.0 m heavy-plate millShanghai, China

The finishing stand was the first one inChina to have CVC® plus technology.

Realized for the first time: Combinedspray and laminar cooling.

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COMBINED SPRAY AND

LAMINAR COOLING FOR

HIGH-STRENGTH PLATES

The 5 m heavy-plate mill from BaoshanIron & Steel (Baosteel for short) hasbecome the standard for a series of fur-ther new plants, thanks to the large num-ber of innovative solutions. The finishingstand was the first heavy-plate stand inChina to be equipped with the CVC® plussystem. An innovation was the combinedspray and laminar cooling. It makes possi-ble a wide range of cooling strategies andthe production of high-strength plateswith economical alloying concepts.

In this cooling system, spray cooling isinstalled upstream of the laminar section.The spray cooling system attains veryhigh cooling rates thanks to a powerfulhigh-pressure water station in combina-tion with special nozzles. To achieve goodplate flatness in the spray cooling also atthe highest cooling rates, pinch rolls areinstalled between the cooling headers toregulate the water flow onto the plate andthus improve the temperature distributionand the cooling efficiency. A retrofittedpre-leveler additionally evens out the cool-ing action.

Our X-Pact® process model controls thecooling curve. It is based on a mathemati-cal-physical process model, which linksthe most important characteristic data ofthe plate with metallurgical parametersthat are stored in the system for all mate-rials. The ideal cooling process is thus cal-culated for each plate.

SCOPE OF SUPPLY

1st construction stageHigh-pressure descalerFour-high reversing finishing stand with edger (exit end) - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 108 MNCombined spray and laminar coolingHot plate leveler2 walking-beam cooling bedsCrop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler

X-Pact® automation for- Finishing stand (Profile and Flatness Control)- Spray and laminar cooling- Hot plate leveler- 9/5 cold plate leveler

2nd construction stage(commissioning: 2008)Four-high reversing roughing stand - Hydraulic adjustment systems- Roll force 108 MN

3rd construction stage(commissioning: 2012)Pre-leveler 9/5 cold plate levelerX-Pact® automation for pre-leveler andcold plate leveler

TECHNICAL DATA

Commissioning March 2005

Annual production1st construction stage 1.4 million t2nd construction stage 1.8 million t

Steel gradesCarbon and high-strength steels such as ship-building steels, pipe grades, structural steel, pres-sure vessel steel, boiler plate, and others

SlabThickness 220, 250, 300 mmWidth 1,300 to 2,300 mmWeight 25,8 t

IngotsThickness max. 1,000 mmWeight max. 60,0 t

Finished plateThickness 5 to 400 mmWidth 1,200 to 4,800 mmLength 3 to 25 mWeight 45,0 t



MMKMMK5.0 m heavy-plate millMagnitogorsk, Russia

Electrical and automation systemsfrom SMS Siemag.

The pre-leveler improves the plate flatness prior toentry into the spray and laminar cooling system.

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A PLANT ALL FROM THE

SAME SOURCE

The 5.0 m heavy-plate mill from MMK ispure SMS Siemag technology. We sup-plied the mill with everything, from themillstand to the plate finishing line: thecomplete mechanical system, the automa-tion systems, and the electrics with thecomplete drive technology. With an outputof 12 MW each, the main drives are thestrongest that we have installed so far.The reheating furnaces, the heat-treat-ment line and the roll shop also belongedto our supply scope. The secondary metal-lurgy equipment and the continuous cast-er which supplies the heavy-plate mill withslabs are likewise our products.

MMK uses its heavy-plate mill above all forthe manufacture of plates for large-diame-ter pipes for pipelines. MMK commencedthe production of these grades as early asfour weeks after commissioning of the milland increased their proportion to 100%within six months. MMK produces thesegrades exclusively with the thermome-chanical rolling method. The optimizedinterplay of the pass-schedule model, theprofile and flatness control and the millpacing model allows MMK to perform mul-tiple plate rolling with groups of up to sixplates and thus achieve high productivity.

The multi-part backup rolls developed byus were installed for the first time in theMMK finishing stand. The smaller partweights meant that the long deliverytimes were able to be shortened and theMMK mill thus went into operation by thedesired deadline.

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SCOPE OF SUPPLY

2 reheating furnacesHigh-pressure descalerFour-high reversing finishing stand in multi-part construction with edger (exit end) - Hydraulic adjustment systems- Work roll bending- CVC® plus- Multi-part backup rolls- Roll force 120 MNCombined spray and laminarcooling with pre-levelerHot plate levelerWalking-beam cooling bedCrop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate levelerHeat treatment furnaceRoller quenching stationRoll shop

Complete X-Pact® electrical, drivetechnology and automation package

TECHNICAL DATA

Commissioning July 2009

Annual production1st construction stage 1.5 million t

Steel gradesPipe grades (up to X120), pressure vessel steel,bridge-building steel, shipbuilding steel

SlabThickness 190, 250, 300 mmWidth 1,400 to 2,700 mmWeight max. 30,0 t

Finished plateThickness 8 to 160 mmWidth 1,500 to 4,800 mmLength 6 to 24 mWeight max. 25,7 t



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MINMETALS YINGKOUMINMETALS YINGKOU5.0 m heavy-plate millYingkou, China

Backup roll change with changing stool.

The dividing shear is equipped with a movable stopfor measuring the plate length.

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HEAVY-PLATE MILL

OF LENGTH 1,600 M

Minmetals Yingkou belongs to one ofChina's leading trading companies forsteel and NF metals and, with the 5.0 mmill, has also become established as amanufacturer of high-quality heavy plate.We supplied both the mechanical equip-ment and the complete automation sys-tems for the mill, at Yingkou in the north-east of China.

With a length of around 1,600 m from theslab furnaces to the plate dispatch area,the Minmetals Yingkou works is verygenerously designed and offers possibili-ties for further expansion. Such futureexpansion possibilities are: a heavy-platearea, a heat-treatment line, a secondshearing line and additional reheating furnaces for slabs and ingots.

The mother plates produced on the two-stand mill line are trimmed to the finaldimensions in the shearing line followingthe cooling and hot leveling. The fourshears process plates of thickness up to50 mm and strengths up to 1,200 N/mm2.All shears operate with the rolling-cutmethod, which guarantees particularlyprecise cuts and clean plate edges. Cropshears and dividing shears are of theenclosed design type. This reduces thedeformation of the housing during cut-ting, which in turn additionally improvesthe cutting accuracy and edge quality.

SCOPE OF SUPPLY

High-pressure descalerFour-high reversing roughing stand in multi-part construction with edger (exit end)- Hydraulic adjustment systems- Roll force 120 MNFour-high reversing finishing stand inmulti-part construction.- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 120 MNLaminar cooling systemHot plate leveler3 walking-beam cooling bedsCrop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler

Complete X-Pact® automation system

TECHNICAL DATA

Commissioning September 2009


Steel gradesHSLA steel, shipbuilding steel, tube grades,pressure vessel steel, structural steel

SlabThickness 150, 200, 250, 320 mmWidth 1,300 to 2,600 mmWeight max. 31.15 t


Finished plateThickness 5 to 125 mm / 400 mmWidth 1,300 to 4,800 mmLength 3 to 25 mWeight max. 60.0 t



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HYUNDAI STEELHYUNDAI STEEL5.0 m heavy-plate millDangjin, South Korea

Plug & Work tests.

Slipper-type spindles transmitthe high rolling torques.

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FAST COMMISSIONING

THANKS TO PLUG&WORK

Hyundai Steel's 5.0 m heavy-plate millwent into operation in December 2009.It is part of the company's new integratediron and steel plant on the west coast ofKorea. The mill has an annual capacity of1.5 million tons and this will be expandedto 2 million tpy by an additional roughingstand in 2013. With this rolling mill,Hyundai Steel is concentrating predomi-nantly on the manufacture of ship plates.

We supplied the mechanical equipmentand the complete automation for the mill.Prior to delivery, the automation systemswere put through the Plug&Work tests.Here, they were tested against the real-time simulation of the rolling process.

The preliminary optimization shortenedthe commissioning time and enabled arapid run-up of the mill. Already after ninemonths, the rolling mill attained 85% ofits nominal capacity. A further benefit:The operating personnel were able tofamiliarize themselves with the millbeforehand by means of training sessionsinvolving realistic operating situations. Themaintenance personnel could also runthrough the relevant scenarios.

The control pulpit in the mill line is charac-terized by its special ergonomic design.The HMI systems are set up in such away as to allow the operator good visibilityand represent the process in a produc-tion-oriented manner, with all relevantinformation.

SCOPE OF SUPPLY

1st construction stageHigh-pressure descalerFour-high reversing finishing stand- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 108 MNLaminar cooling systemHot plate leveler2 walking-beam cooling bedsCrop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler


2nd construction stage(commissioning: 2013)Four-high reversing roughing standwith edger (exit end)- Hydraulic adjustment systemsSpray cooling with pre-levelerWalking-beam cooling bedDividing shearComplete X-Pact® automation system

TECHNICAL DATA

Commissioning December 2009


Steel gradesShipbuilding steel, structural steel and others




VYKSA STEELVYKSA STEEL5.0 m heavy-plate millVyksa, Russia


Cold plate leveler with a leveling force of 54 MN.

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PLATE MILL

FOR PIPE GRADES

Vyksa Steel is one of the leading Russianmanufacturers of line pipes. With thenew 5.0 m heavy-plate mill the company,which is part of the OMK Group, canmanufacture high-strength heavy platesat its Vyksa location and process thesedirectly into large-diameter pipes onplants from SMS Meer.

The production of tube steel grades upto strength class X120 places extremelyheavy demands on all plant sections,from the mill line to the adjustment line.The cold plate leveler can therefore levelplates up to a strength of 1,200 N/mm²in a single pass. The machine is con-structed in 9/5 design and, in addition tothe main hydraulic adjustment system,it has hydraulic roll-gap adjustment sys-tems for each individual leveler roll. Allleveler rolls are driven separately, whichmeans that the ideal curvature progres-sion can be set for each plate, throughinteraction with our leveling model. Fur-thermore, the machine can be operatedwith nine and five leveler rolls, thus pro-viding an expanded leveling range. Thechange-over from the 9-roll to the 5-rollmode and vice-versa can be made fromone plate to the next.

For the Vyksa Steel rolling mill we alsosupplied the complete electrical andautomation system including the powersupply, the drive engineering, the Level 1and Level 2 systems and the productionplanning at Level 3.

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SCOPE OF SUPPLY

Walking beam furnacesHigh-pressure descalerFour-high reversing finishing standin multi-part construction.- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 120 MNSpray cooling with pre-levelerHot plate levelerDisk-type cooling bedDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler

Complete X-Pact® electrical and automationpackage including Level 3

TECHNICAL DATA

Commissioning November 2011


Steel gradesPipe grades to X120, mechanical-engineeringsteel, shipbuilding steel, bridge-building andother structural steels.




Under consideration of the technologicaland logistical boundary conditions, theproduction planning system automaticallygenerates the production orders from theorder backlog and defines all processsteps as far as the finished plate.

The millstand was completely assembledand tested in our workshop.


TANGSHAN IRON & STEELTANGSHAN IRON & STEEL5.0 m heavy-plate millTangshan, China

The high-pressure descaler operates atpressures up to 210 bar.

The backup rolls are supported inMORGOIL® bearings.

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MORGOIL® BEARINGS

FOR OPTIMUM RUNNING

ACCURACY

The Chinese steelmaker TangshanIron & Steel has decided to commencethe production of heavy plate and istherefore investing in a new 5.0 m millwith an annual capacity of 1.8 milliontons. The mill is designed for plates inthicknesses between 5 and 200 mm andwidths from 1,300 to 4,800 mm. Thehigh-quality product range focuses onshipbuilding plates, pipe grades, high-strength structural plates as well asplates for the construction of pressurevessels and boilers. By increasing thestarting-material weights, the annualproduction can be increased later to2.0 million tons.

The mill line consists of a roughing standwith edger and a finishing stand. Thefinishing stand is equipped with CVC®

plus technology for good plate flatnessand high productivity.

The two millstands each have a maxi-mum roll force of 120 MN. To absorbthese high roll forces, the backup rollsare mounted in Morgoil® roll neck bear-ings of the KLX® series. In Morgoil® bear-ings, an oil film supports the roll neckand keeps it separate from the bearingbush, thus preventing any frictionbetween the metal parts. The KLX®

series is the most recent further develop-ment of the Morgoil® bearings. Thisseries can be loaded to an extremelyhigh degree and ensures optimumrunning accuracy of the rolls with highoperational reliability.

SCOPE OF SUPPLY

High-pressure descalerFour-high reversing roughing stand withedger (exit end)- Hydraulic adjustment systems- Roll force 120 MNFour-high reversing finishing stand - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 120 MNLaminar cooling system Hot plate levelerCrop shearDouble-side trimming shearSlitting shearDividing shear9/5 cold plate leveler

X-Pact® automation system for- Finishing stand(Profile and Flatness Control)- Laminar cooling system- Hot plate leveler- Cold plate leveler

TECHNICAL DATA

Commissioning 2013


Steel gradesHSLA steel, shipbuilding steel, tube grades,pressure vessel steel, structural steel






NANJIING IRON & STEELNANJIING IRON & STEEL4.7 m heavy-plate millNanjing, China

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TENTH HEAVY-PLATE

MILL FROM SMS SIEMAG

IN CHINA

The Chinese steel group Nanjing Iron &Steel (Nisco) awarded an order to us inAugust 2011 to build a new 4.7 m heavy-plate mill. The order comprises the deliv-ery of a finishing stand with CVC® plustechnology, a pre-leveler, a hot plate level-er and a shearing line. We are supplyingthese components inclusive of the tech-nological X-Pact® automation systems.

The Nisco plant is the tenth heavy platemill to be erected by us in China in lessthan ten years. It is being built in Nanjingand will commence operation in 2013.With this heavy-plate mill, Nisco aims atattaining an annual production of 1.6 mil-lion tons. The product range covers allsteel grades currently demanded by themarket such as tube and pipe steelgrades, ship plates and other high-strength steel grades.

The finishing stand has a roll force of120 MN and is equipped with hydraulicadjustment systems, work-roll bendingand the CVC® plus system (ContinuouslyVariable Crown). In cooperation withSMS Siemag's profile and flatness con-trol (PFC), CVC® enables the productionof plates with close geometrical toler-ances and a high throughput.

SCOPE OF SUPPLY

Four-high reversing finishing stand- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 120 MNPre-leveler Hot plate levelerCrop shearDouble-side trimming shearSlitting shearDividing shear

X-Pact® automation system for- Finishing stand (Profile and Flatness Control)- Pre-leveler- Hot plate leveler

TECHNICAL DATA

Commissioning 2013


Steel gradesShipbuilding steel, pipe grades, pressure vesselsteel, structural steel, HSLA steels

SlabThickness 150, 180, 220,

260, 320 mmWidth 1,600 to 2,800 mmWeight max. 30.0 t

IngotsThickness max. 600 mmWeight max. 45.0 t




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QINHUANGDAO SHOUQIN METALMATERIALSQINHUANGDAO SHOUQIN METALMATERIALS 4.3 m heavy-plate millQinhuangdao, China

Two-stand mill line.

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MULTI-PART MILL HOUSING

In the 4.3 m heavy-plate mill at Qin-huangdao Shouqin we have for the firsttime installed mill housings in split andbolted design. In this type of construc-tion, it is only on the jobsite that the finish-machined mill housing yokes andposts are firmly connected with eachother by tension rods. This approach simplifies casting of the mill housing,cuts delivery times and makes shipmenteasier. At the same time, a lower degreeof necking under load is obtained throughthe controlled pre-stressing of the ten-sion rods. This results in improvement of the plate running and thus also of theplate geometry.

Four years after the start of production,the second construction stage went intooperation in 2010 with a roughing standand the second shearing line with dou-ble-side trimming shear, slitting and divid-ing shears and a cold plate leveler. Theannual capacity of the 4.3 m mill is thusaround 1.8 million tons.

Qinhuangdao Shouqin Metal Materials is a part of the Chinese Shougang Groupto which, since the year 2000 alone, wehave supplied a continuous slab caster,two hot strip mills, two pickling line/tandem cold mills and several strip fin-ishing lines.

SCOPE OF SUPPLY

1st construction stageHigh-pressure descalerFour-high reversing finishing stand inmulti-part construction- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 92 MNLaminar cooling systemHot plate levelerWalking-beam cooling bed2 disk-type cooling bedsDouble-side trimming shearDividing shearX-Pact® automation system for- Laminar cooling system- Hot plate leveler

2nd construction stage(commissioning: 2010)Four-high reversing roughing stand - Hydraulic adjustment systems- Roll force 90 MNDouble-side trimming shearSlitting shearDividing shear9/5 cold plate levelerX-Pact® automation for cold plate leveler

TECHNICAL DATA

Commissioning October 2006


Steel gradesShipbuilding steel, pipe grades, bridge-buildingsteel, pressure vessel steel, mechanical-engi-neering steel





DONGKUK STEELDONGKUK STEEL4.3 m heavy-plate millPohang, South Korea

SMS Siemag renewed the automation for theroughing and finishing stands.

The finishing stand after the revamp.

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(PFC), for mill pacing and for material track-ing, as well as new technological controlsystems (TCS) in both millstands.

STAND MODERNIZATION

WITH CVC® PLUS

The growing demand for high-quality shipplates prompted Dongkuk Steel to entrustus with the modernization of the Heavy-Plate Mill No.2 in 2008. The mill had beenin operation since 1997 and had originallybeen supplied to a Mexican customer in1982. At that time, we supplied the majorpart of the equipment.

The aims of the revamp were to increase theproduction from 1.7 to 2.0 million tpy, toimprove the plate quality and to lower theminimum plate thickness from 8 to 5 mm.

For this revamp, we equipped a millstandsupplied by another manufacturer with ourCVC® plus technology for the first time.This enables Dongkuk Steel to performhigher reductions especially during the lastfew rolling passes and ensures the adher-ence to narrow profile and flatness toler-ances. We also installed new hydraulicadjustment systems to increase the rollforce to 90 MN.

Dongkuk Steel equipped the finishingstand with our newly developed slipper-type spindles with length compensationfor transmitting higher rolling torques.These spindles enable the work rolls to beshifted and, thanks to their robust con-struction as compared to other spindletypes, have a considerably higher torquecapacity and greater operational reliability.

In the field of automation, we suppliednew process models for pass schedulecalculation, for profile and flatness control

SCOPE OF SUPPLY

1st construction stage High-pressure descalerHot plate leveler2 walking-beam cooling beds3 dividing shearsSlitting shear2 double-side trimming shearsPlate finishing line

Revamp 2008Finishing stand: CVC® plus, slipper-type spindles,hydraulic adjustment systemsRoughing and finishing stands:Technological control systems (Level 1),process models (Level 2) for pass schedulecalculation, profile and flatness control(PFC), pacing system and material tracking

Revamp 2011Roughing stand: slipper-type spindles

TECHNICAL DATA

Commissioning 1997

Revamps 2008/2011


Steel gradesShipbuilding steel, pipe grades, bridge-building steel, pressure vessel steel,structural steel

SlabThickness 250 mmWidth 1,100 to 2,200 mmWeight max. 14.0 t

Finished plateThickness 6 to 120 mmWidth 1,524 to 4,100 mmLength max. 25 mWeight max. 14.0 t



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BAOSHAN IRON & STEELBAOSHAN IRON & STEEL4.3 m heavy-plate millShanghai (Luojing), China

Hot plate leveler.

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BAOSTEEL MILL FOR

STAINLESS STEELS AND

SPECIAL GRADES

In March 2008 Baoshan Iron & Steelcommissioned its second heavy-platemill from SMS Siemag, the 4.3 m mill.The mill supplements the product rangeof the 5.0 m rolling mill and is designedfor the production of stainless steelsand special grades.

The 4.3 m mill also has a two-stand mill line with CVC® plus in the finishingstand, a combined spray and laminarcooling system with pre-leveler, a hotplate leveler, a shearing line and a coldplate leveler.

The hot plate leveler is designed forplates between 8 and 100 mm withlow-temperature strengths up to 1,000N/mm². Its leveling force is 34 MN. The adjustment of the upper pressureframe takes place in a purely hydraulicmanner and, in addition, the entry andrunout rolls of the lower leveler roll setcan be adjusted separately. The elasticdeformations in the machine are com-pensated via short-stroke cylinders dur-ing leveling.

Our X-Pact® leveling model is based onthe mathematical-physical mapping ofthe processes in the plate and in themachine. It calculates the adjustment ofthe leveler rolls and the drive torque as afunction of the material properties suchas yield point, tensile strength, modulusof elasticity and plate size.

SCOPE OF SUPPLY

1st construction stageHigh-pressure descalerFour-high reversing roughing stand with edger (exit end)- Hydraulic adjustment systems- Roll force 90 MNFour-high reversing finishing stand- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 90 MNCombined spray and laminar coolingHot plate levelerWalking-beam cooling bedsCrop shearDividing shear9/5 cold plate leveler

X-Pact® automation system for- Finishing stand(Profile and Flatness Control)- Spray and laminar cooling- Hot plate leveler- Cold plate leveler

2nd construction stage(commissioning: 2012)Pre-leveler in the entry section of the spraycooling system

X-Pact® automation system for pre-leveler

TECHNICAL DATA

Commissioning March 2008


Steel gradesSpecial grades, stainless steels, structural steel,pressure vessel steel, shipbuilding steel

SlabThickness 200, 230, 250,

300, 350, 400 mmWidth 1,500 to 2,300 mmWeight max. 28.0 t




30

ROURKELA STEEL PLANTROURKELA STEEL PLANT4.3 m heavy-plate millRourkela, India

Dividing shear.

31

NEW HEAVY-PLATE MILL

FOR ROURKELA

We are supplying the Steel Authority ofIndia (SAIL) with the process equipmentfor a new 4.3 m heavy-plate mill, fromthe cooling bed to the plate finishing line.The mill is being built at the Rourkelalocation in the province of Orissa andis designed for an overall capacity of920,000 t each year. The later expansionof the mill, with an increase of produc-tion, has already been included in the layout planning.

Our supply scope comprises a disk-typecooling bed and an inspection bed, theshearing line with double-side trimmingshear and dividing shear and, for theplate finishing line, the cold plate levelerin 9/5 design with the leveling model.

In combination with the technologicalcontrol system (TCS), our X-Pact® levelingmodel sets the adjustments of the level-er rolls and calculates the drive torques.When doing this, it considers the proper-ties of the material at the current platetemperature and the plate dimensions.The ideal curvature progression is thusfound for each plate.

For the plate finishing line we shall also besupplying the complete transport and con-veying facilities, the pre-piler, an inspectionbed and a rail-bound car for the transportof heavy plates.

SCOPE OF SUPPLY

Disk-type cooling bed Inspection bedDouble-side trimming shearDividing shear9/5 cold plate levelerPlate finishing line

X-Pact® automation systemfor cold plate leveler

TECHNICAL DATA

Commissioning 2012

Annual production 920,000 t

Steel gradesStructural steels, pressure vessel steel, ship-building steel, pipe grades, HSLA grades

Finished plateThickness 6 to 100 mmWidth 1,500 to 4,100 mmLength 6.3 to 15 mWeight max. 23.2 t


Disk-type cooling bed.

The new heavy-plate mill is part of theextension of the Rourkela works. Wehad helped to erect this works already inthe 1960's. At that time, one of the facil-ities supplied by SMS Siemag was the2.5 m heavy-plate mill.


32

HYUNDAI STEELHYUNDAI STEEL4.3 m heavy-plate millDangjin, South Korea

33

A SECOND HEAVY-PLATE

MILL FOR HYUNDAI STEEL

In May 2011 Hyundai Steel asked us tosupply a 4.3 m heavy-plate mill. The newmill is being built directly adjacent to the5.0 m mill, likewise supplied by SMSSiemag, in the integrated iron and steelplant of Hyundai Steel in Dangjin.

The millstand has a roll force of 90 MNand is equipped with hydraulic adjust-ment systems, work-roll bending and theCVC® plus system. The rolling process is controlled by our X-Pact® automation system. Before the first pass, the pass-schedule model (PSC) calculates the opti-mum pass schedule with the smallestnumber of rolling cycles. After each pass,the remaining rolling steps are recalculat-ed within milliseconds and adapted tothe actual conditions. Thanks to the highprecision of the first calculation, onlysmall adaptations of the set values areneeded. The profile and flatness control(PFC) is part of the PSC and it adapts thework roll bending and the position of theCVC shifting from pass to pass.

The plate cooling system is designed asa purely spray-cooling system with ahigh-pressure station in the front sectionand a low-pressure cooling system in therear section. It makes possible very highcooling rates with good plate flatnessand the ability to implement a large vari-ety of cooling patterns.

SCOPE OF SUPPLY

High-pressure descalerFour-high reversing finishingstand with edger (exit end) - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 90 MNSpray coolingHot plate leveler2 walking-beam cooling bedsCrop shearDouble-side trimming shear2 dividing shears9/5 cold plate leveler

X-Pact® automation system for- Finishing stand (Level 1 and Level 2)- Spray cooling- Pre-leveler- Hot plate leveler- Cold plate leveler

TECHNICAL DATA

Commissioning 2013

Annual production1st construction stage: 1.5 million t

Steel gradesShipbuilding steel and other high-grade steels

SlabThickness 225, 250, 300 mmWidth 1,600 to 2,200 mmWeight max. 21.2 t




34

BAOTOU IRON & STEELBAOTOU IRON & STEEL3.8 m heavy-plate millBaotou, China

Laminar cooling: efficientand cost-effective

Double-side trimming shear.

35

HEAVY-PLATE PRODUCTION

IN THE HIGHLANDS OF

MONGOLIA

Baotou Iron & Steel Group is the largeststeelmaker in Inner Mongolia and hasbeen concentrating since the year 2000on expanding its flat-steel production.Thus, in October 2007, following theCSP® plant and a combined picklingline/tandem cold mill, already the thirdfacility from SMS Siemag within sixyears went into operation: the 3.8 mheavy-plate mill.

The main components of the mill are aroughing stand and a finishing stand, theplate cooling system, the hot plate level-er, the shearing line and the cold plateleveler. The plate cooling is designed as a laminar cooling system. This makespossible accelerated cooling and directquenching and thus the manufacture of a wide range of high-strength plates. Further advantages are the simple design,the low energy consumption and the lowcosts of care and maintenance. Laminarcooling is the type of cooling that is the most widely distributed throughout the world.

Following the supply and commissioningof the heavy-plate mill, we are cooperatingwith Baotou Iron & Steel also in the fieldof materials technology and have devel-oped a concept for the manufacture ofhigh-strength tube steels that is speciallyattuned to the Baotou process chain.

SCOPE OF SUPPLY

1st construction stageHigh-pressure descalerFour-high reversing roughing stand - Hydraulic adjustment systems- Roll force 81 MNFour-high reversing finishing stand - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 80 MNLaminar cooling systemHot plate levelerCrop shearDouble-side trimming shearDividing shearX-Pact® automation system for- Finishing stand(Profile and Flatness Control)- Laminar cooling system- Hot plate leveler

2nd construction stage(commissioning: 2010)Dividing shear9/5 cold plate levelerX-Pact® automation systemfor cold plate leveler

TECHNICAL DATA



Steel gradesHigh-strength structural steel, shipbuildingsteel, pipe grades, pressure vessel steel,mechanical-engineering steel

SlabThickness 200, 250, 300 mmWidth 1,200 to 2,300 mmWeight max. 39.8 t




36

XIANGTAN IRON & STEELXIANGTAN IRON & STEEL3.8 m heavy-plate millXiangtan, China

Complete automation from SMS Siemag.

37

COMPLETE AUTOMATION

FROM SMS SIEMAG

With the two millstands, the plate cool-ing, the hot and cold plate levelers andthree shears, we have supplied the mostimportant mechanical equipment and allpertaining process models and techno-logical control systems for the 3.8 mheavy-plate mill at Xiangtan Iron & Steel.

The following are the essential elementsof our X-Pact® automation: Material tracking from the reheatingfurnace to the plate pilerThe mill pacing for optimum throughput The pass schedule calculation (PSC)for the roughing and finishing standsTechnological control systems such aswidth and thickness control for themillstandsSet-up model, coolant volume controland edge masking for the plate coolingSet-up model and hydraulic leveler-rolladjustment for the hot and cold platelevelers (drive control).

The new rolling mill has enabled XiangtanIron & Steel to become established as aproducer of high-quality heavy plates,following the previous good reputation of the company, from the province ofHunan, as a manufacturer of long prod-ucts. A special feature of the mill is itsproduction of plates up to 74 meters inlength, which only afterwards are cut tolength in the shearing line.

The hotplate leveler.

SCOPE OF SUPPLY

1st construction stageFour-high reversing roughing stand withedger (entry end)- Hydraulic adjustment systems- Roll force 50 MNFour-high reversing finishing stand- Hydraulic adjustment systems- Work roll bending- Roll force 75 MNLaminar cooling system Hot plate levelerDouble-side trimming shearDividing shear


2nd construction stage(commissioning: 2008)Dividing shear (as sample shear)9/5 cold plate leveler

X-Pact® automation systemfor cold plate leveler

TECHNICAL DATA



Steel gradesHigh-strength structural steel, shipbuildingsteel, pipe grades, pressure vessel steel,mechanical-engineering steel

SlabThickness 180, 220, 260, 300 mmWidth 1,200 to 2,300 mmWeight max 35.0 t

Finished plateThickness 6 to 100 mmWidth 1,500 to 3,650 mmLength 6 to 18 m

(rolled length: 74 m)Weight max. 35.0 t



38

XINYU IRON & STEELXINYU IRON & STEEL3.8 m heavy-plate millXinyu, China

Double-side trimming shear.

39

TWO YEARS FROM THE

ORDER TO THE FIRST PLATE

A mere 24 months from the order to thefirst plate made the construction of the3.8 m heavy-plate mill for Xinyu Iron &Steel become a special challenge. Toimplement the project in this short timewas only possible thanks to our greatexperience on the Chinese market.

In the first construction stage, the millpossesses an annual capacity of 800,000 tand it can enhance its production to 1.2 million t by an additional roughingstand. The product mix comprises a widerange of steel grades, from simple carbonsteels to shipbuilding steels, pipe gradesand steel grades for manufacturing pres-sure vessels.

A hydraulic edger is flanged on at the exitend of the finishing stand in order toimprove the width accuracy. This edgeroperates with a roll force of 4,500 kN. Aspecial control system for the edging pass("short stroke") ensures good rectangulari-ty at the plate head and tail ends and thusimproves the yield of the mill.

SCOPE OF SUPPLY

Four-high reversing finishing stand with edger (exit end)- Hydraulic adjustment systems- Work roll bending- Roll force 75 MNHot plate leveler Double-side trimming shear

X-Pact® automation system for hot plate leveler

TECHNICAL DATA

Commissioning April 2005


Steel gradesCarbon steel, shipbuilding steel, pipe grades,pressure vessel steel, mechanical-engineeringsteel


Finished plateThickness 6 to 100 mmWidth 1,500 to 3,610 mmLength: 6 to 18 mWeight: max. 33.6 t



40

SSABSSAB3.7 m heavy-plate millOxelösund, Sweden

Drum shear downstream of the millstand.

The new 3.7 m millstand.

41

FOR THE FIRST TIME,

CVC® PLUS FOR

HEAVY-PLATE STAND

The Swedish steelmaker SSAB Oxelösundspecializes in abrasion-resistant and high-strength steel plates, which are in demandabove all in heavy mechanical engineeringand in the building industry. With a view toincreasing the capacity and improving theplate quality, SSAB placed an order withus in 1995 to build a new 3.7 m four-highmillstand and a hot plate leveler. The newheavy-plate stand was the first millstandworldwide to be equipped with CVC® plustechnology.

CVC® plus is an integrated system and isbased on the combination of work rollbending, axial shifting of the work rollsprovided with the special CVC grindingpattern, and the technological processmodel PFC (profile and flatness control).The PFC calculates the shifting positionand the bending force for each passunder consideration of the roll force, thusenabling the profile and flatness to be setexactly, even for thin and wide plates. Furthermore, CVC® plus enhances theproductivity because it allows high thick-ness reductions, above all for the finalrolling passes.

In addition, we supplied SSAB with a drumshear for cutting the plates after roughing,a pre-leveler, the automation for theMulpic cooling system, and a cold plateleveler. This is installed in the heat-treat-ment line and it also levels extremelywear-resistant plates, which are marketedby SSAB under the trade name of Hardox.

SCOPE OF SUPPLY

Four-high reversing finishing stand - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 100 MN- Profile and Flatness Control (PFC)Drum shearPre-leveler Cooling model for MulpicCold plate leveler

TECHNICAL DATA



Steel gradesAbrasion and wear-resistant plates,structural steel grades, tool steel

SlabThickness 120 - 290 mmWidth 1,600 - 1,700 mmWeight max. 13.5 t

Finished plateThickness 4 - 150 mmWidth 900 - 3,500 mmLength max. 30 mmWeight max 13.5 t


42

SSAB NORTH AMERICASSAB NORTH AMERICASteckel/Plate rolling millMontpelier (Iowa), USA

Runout roller table with laminar cooling,coiler and hot plate leveler.

Disk-type cooling bed.

43

STECKEL/PLATE ROLLING

MILL FOR HEAVY PLATE

AND HOT STRIP

At SSAB North America (formerly Ipsco)we implemented a plant concept for thefirst time in 1997 which makes it possibleto manufacture heavy plate and hot widestrip on one millstand. Using the Steck-el/Plate rolling mill, SSAB North Americacan adapt its production to the marketquickly and flexibly.

The mill line comprises a Steckel millstandwith an edging stand flanged on at theentry end. The initial passes are simplereversing passes. As from a thickness of25 mm the rolling stock is coiled into theSteckel furnace and thus kept at thecorrect temperature during the last fewpasses. The millstand is equipped withCVC® plus, thus enabling the profile andflatness of plates and strips to stay withinnarrow tolerances.

On the millstand, SSAB North Americacan produce plates up to 600 m in lengthwhich, after rolling, can be cut by a divid-ing shear "on the fly" to the maximumcooling-bed length of 74 m.

Besides the rolling mill, we supplied thesteelmaking equipment and the continu-ous caster for the works in Montpelier inthe US federal state of Iowa. With a widthof 3,048 mm, the caster is one of theworld's widest and produces slabs with athickness of 152 mm. Directly after cast-ing, the slabs run through the walking-beam furnace and are then fed into themill line. Thanks to this close combinationof casting and rolling, the plant is charac-terized by a low energy consumption.

SCOPE OF SUPPLY

High-pressure descalerFour-high Steckel millstand withedger (entry end)- Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 60 MNFlying cross-cut shearLaminar cooling systemDowncoilerHot plate levelerDisk-type cooling bedCrop shearDouble-side trimming shearDividing shearCold plate leveler

TECHNICAL DATA



Steel gradesStructural steel, pipe grades,fine-grained engineering steel

SlabThickness 152.4 mmWidth 1,219 to 3,048 mmLength 18.9 mWeight max. 68.0 t

Finished plateThickness 4.78 to 50.8 mmWidth 1,219 to 3,048 mmLength max. 24.38 m

(rolled length: 600 m)Weight, max. 16.0 t

Finished stripThickness 2.29 to 19.0 mmWidth 1,219 to 2,438 mmCoil weight 34.0 t



44

MAGHREB STEELMAGHREB STEEL2.8 m heavy-plate millCasablanca, Morocco

45

COMPACT WORKS

COMPLEX

We have built a new works complex for the production of heavy plate and hot strip in Casablanca (Morocco) forMaghreb Steel. We supplied the com-plete plant engineering, including theelectrical and automation package, forthis works which comprises an electricsteelmaking plant, continuous slab cast-er, 2.8 m heavy plate mill and twin-standSteckel mill.

The heavy-plate mill and the Steckel mill receive their slabs from the samecontinuous caster and are arranged suchthat the heavy-plate stand can be usedfor plate production and as a roughingstand for the Steckel mill. This conceptgives Maghreb Steel the required flexibil-ity for adapting the production to themarket demand.

The heavy-plate stand is equipped withour CVC® plus system. The finish-rolledplates are first cut to cooling-bed lengthby a hot dividing shear downstream ofthe millstand. They then pass throughthe hot plate leveler and, following thecooling bed, they are cut to final dimen-sions in the finishing line.

SCOPE OF SUPPLY

High-pressure descalerFour-high finishing stand - Hydraulic adjustment systems- Work roll bending- CVC® plus- Roll force 36 MNHot dividing shearHot plate levelerDisk-type cooling bedTrimming shearDividing shear

Complete X-Pact®

electrical and automation system

TECHNICAL DATA



Product range Carbon steel grades


Finished plateWidth 1,500 to 2,650 mmThickness 4.75 to 50 mmLength 6 to 12 mWeight max. 25.0 t


The millstand duringerection.


46

47

POSCO5.5 m heavy-plate millGwangyang, South Korea

ANGANG STEEL5.5/5.0 m heavy-plate millYingkou, China

BAOSHAN IRON & STEEL5.0 m heavy-plate millShanghai, China


48

MMK5.0 m heavy-plate millMagnitogorsk, Russia

HYUNDAI STEELDangjin, South Korea

5.0 m heavy-plate mill

4.3 m heavy-plate mill

49


50

VYKSA STEEL5.0 m heavy-plate millVyksa, Russia

TANGSHAN IRON & STEEL5.0 m heavy-plate millTangshan, China

51

MINMETALS YINGKOU5.0 m heavy-plate millYingkou, China


52

DONGKUK STEEL4.3 m heavy-plate millPohang, South Korea

53

QINHUANGDAO SHOUQINMETAL MATERIALS4.3 m heavy-plate millQinhuangdao, China

NANJING IRON & STEEL4.7 m heavy-plate millNanjing, China


54

BAOTOU IRON & STEEL3.8 m heavy-plate millBaotou, China

55

ROURKELA STEEL PLANT4.3 m heavy-plate millRourkela, India

BAOSHAN IRON & STEEL4.3 m heavy-plate millShanghai (Luojing), China


56

XINYU IRON & STEEL3.8 m heavy-plate millXinyu, China

SSAB NORTH AMERICASteckel/Plate rolling millMontpelier (Iowa), USA

57

XIANGTAN IRON & STEEL3.8 m heavy-plate millXiangtan, China


58

MAGHREB STEEL2.8 m heavy-plate millCasablanca, Morocco

59

SMS SIEMAG AG

Hot Rolling Mills Division

Wiesenstrasse 3057271 Hilchenbach, Germany

Phone: +49 2733 29-1616Telefax: +49 2733 29-2832

E-mail: [email protected]: www.sms-siemag.com

MEETING your EXPECTATIONS

W5/304E

1500/05/12 .Ky . Printed in Germany

“The information provided in this brochure contains a general description of the performance characteristics of the products concerned. The actual products may not always have thesecharacteristics as described and, in particular, these may change as a result of further developments of the products. The provision of this information is not intended to have and willnot have legal effect. An obligation to deliver products having particular characteristics shall only exist if expressly agreed in the terms of the contract.”

heavy-plate mills references - sms group€¦ · rolling mills division. it symbolizes plants and...

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