metals technical booklet · as/nzs 4671:2001 gr 500n qs600 ( ys> 600m pa ) iso 6935-2 b500b-r...

Metals Technical BookletCold direCt reduCed iron - dri

Hot Briquetted iron - HBiSteel BilletS

reinforCement Steel BarSCoilS

dololimeCalCined limeBy- ProduCtS

ePoxy Coated reBarS

INTRODUCTIONAbout Muntajat Muntajat (Qatar Chemical and Petrochemical Marketing and Distribution Company Q.P.J.S.C.), is a state-owned company established in 2012 to serve as the exclusive gateway to Qatar’s exports of downstream products.

Recognised as a global leader; Muntajat markets, sells and distributes over 16 million MT per year of polymer, chemical, fertiliser and steel products from renowned producers in the industry to more than 3000 customers in 135 countries efficiently and reliably through a global network of offices around the world, Muntajat B.V.

The company delivers value to its stakeholders by capitalising on its unique business model, economies of scale, capturing new opportunities, expanding the reach of its trusted brand globally, providing world class customer service and building on its strong partnering strategy with key players in the industry.

For more information please visit: www.muntajat.qa

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At Muntajat, we are committed to

get closer to our customers, offering

an optimized product portfolio

and playing a key role in providing

innovative solutions and working

together, in close collaboration,

with producing companies to create

differentiated products and increased

value for our stakeholders.

Muntajat’s products are enriching people’s everyday

lives everywhere.

METALS

We are committed to offering value-added products, working alongside our customers to meet their needs and anticipate future trends. Innovation is key, and we strive to offer products that provide our customers with eco-efficiency gains along with increased profitability.

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Qatar Steel was established in 1974 as the first integrated steel plant in the Arabian Gulf. Commercial production commenced in 1978. The Company has operated as a wholly owned subsidiary of Industries Qatar since 2003.

Qatar Steel is recognized as a regional leader in the steel industry. Production operations are based in Messaieed Industrial City, 45 kilometers south of Qatar’s capital, Doha where Qatar Steel’s corporate headquarters are based. The Company also operates a UAE based subsidiary – Qatar Steel Company FZE.

Inspired to meet the growing demand for steel in Qatar as well as the region in general, Qatar Steel has embarked upon a series of initiatives to modernize and expand its operations. These projects will elevate the company’s production capacity and further enhance the company’s role in the global steel industry.

Plant facilities now include a Midrex process based DRI/HBI combo mega module, electric arc furnaces with a ladle refining furnace, a continuous casting plant and rolling mills with the latest automated features. Additional facilities include: jetty facilities, a main power substation, quality control center, maintenance shops, storage and processing facilities for sea/fresh water, compressed air and natural gas and a medical clinic.

Today the plant occupies an area of 707,000 sq. meters, adjacent to which is a further 375,000 sq. meters plot reserved for future developments.

0706

Reinforcement Steel Bars

Charac-teristics

BS4449:2005Gr B500B

BS4449:2005Gr B500C

SS 560Gr B500B

SS 560Gr B600B

CS2:2012Gr 500B

ASTMA615Gr 60

ASTMA615Gr 75

ASTMA615Gr 80

ASTMA706Gr 60

AS/NZS4671:2001Gr 500N

QS600( YS>600MPa )

ISO6935-2B500B-R

Carbon (C) %

0.22 Max 0.22 Max0.22 Max

0.22 Max

0.22 Max

— — —0.30 Max

0.22 Max0.32 Max

0.32 Max

Phos-pho-rous(P)%

0.05 Max 0.05 Max0.05 Max

0.05 Max

0.05 Max

0.05 Max

0.05 Max

0.05 Max

0.035 Max

0.05 Max0.05 Max

0.060 Max

Sulphur (S) %

0.05 Max 0.05 Max0.05 Max

0.05 Max

0.05 Max

0.05 Max

0.05 Max

0.05 Max

0.045 Max

0.05 Max0.05 Max

0.060 Max

Nitro-gen (N) ppm

120 Max 120 Max120 Max

120 Max

120 Max

120 Max

120 Max

120 Max

— —120 Max

120 Max

CE (%) 0.48 Max 0.48 Max0.48 Max

0.48 Max

0.48 Max

— — — — — — —

Yield Strength

500 500 500 600 500 — — — 420 500 — —

MPa (min)

— — — — — 420 520 550 — — 600 500

650 650 650 780 650 — — — 540 650 — —

Tensile Strength

— — — — — — — — 420 — — —

MPa (min)

— — — — — 620 690 725 — — 740 —

— — — — — — — — 540 — — —

TS/YS(min)

1.08>=1.15,< 1.35

1.08 1.08 1.08 — — — 1.25 1.08 — 1.08

Elonga-tion (%)(min)

— — — — — 9 7 7 14 — 7 14

Agt (%)(min)

5 7.5 5 5 5 — — — — 5 — 5

• BS4449:2005 GrB500B rebars are produced with low carbon equivalent & Weldable, whereas ASTM A615 Gr60, Gr75, Gr80, QS 600, ISO 6935-2:2007, B500B-R SASO ASTM A615:2015 are Non-Weldable.

• BS4449:2005 GrB500B rebars have High Strength Compared to ASTM A615 Gr60 which reduces steel consumption & congestion in structure, in turn reduces overall cost of project

• BS4449:2005 GrB500B rebars have High Yield Strength i.e. 500 MPa (Min) compared to ASTM A615 Gr60, without compromising on ductility

• BS4449:2005 GrB500B rebars have better bend performance, due to severe bend & re-bend angle. Rebars conforming to BS 4449:2005 Specification, are subjected to Fatigue testing and survive minimum 5 million stress cycles

• QS 600 with Yield Strength>600 MPa: Over the years rebar with yield strength 420MPa, 460MPa, 500MPa etc. conforming to BS4449/ASTM A 615 specifications were available in Qatar/GCC region. Rebar with strength i.e.YS>600MPa will reduce the steel consumption by around 20 % in construction, which in turn lowers the overall cost of structure. Using high strength rebar QS 600 can also lead to reduction in column size of heavily loaded structure and there is relief from rebar congestion.

• ASTM A706 Gr 60 rebar for concrete reinforcement intended for applications where restric-tive mechanical properties and chemical composition are required for compatibility with controlled tensile property applications or to enhance weldability.

Bend Angle 90° 90°

160°–

180°

160°–

180°90° 180° 180° 180° 180°

d ≤ 16 : 90°d ≥ 20 :

180°180°

160°–

180°

Re-bend

From 90°

From 90°

From 90°

From 90°

From 90°

– – – –d ≤ 16 :

From 90° Back by at least 20°

d ≥ 20 : not applicable

–From 90°

AngleBack byat least

20°

Back byat least

20°

Back byat least

20°

Back byat least

20°

Back byat least

20°– – – – –

Back byat least

20°

Weldability

Weld-able

Weld-able

Weld-able

Weld-able

Weld-able

Non-Weld-able-

Non-Weld-able-

Non-Weld-able-

Non-Weld-able-

WeldableNon-

Welda-ble-

Non-Welda-

ble

Application

RCC

RCCin

seis-miczone

RCC

HighRaiseTow-ers /

HighlyloadedRCCstruc-ture

RCC RCC RCC

HighRaiseTow-ers

RCCin

seis-miczone

RCC

HighRaiseTow-ers /HighlyloadedRCCstruc-ture

RCC

Note: Bend and Rebend tests are performed as specified in respective standards using proper mandrel diameters

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Mechanical & Physical Properties

SPECIfICATION

Chemical Composition:

Origin British Singapore Hong kong USA ISOInternalAustralia/New Zealand

DESIGNA-TION NO.

NOMINAL DIA. (MM)

NOMINAL MASSPER

METER RUN (KG/M)

ASTM (%) BS (%) ISO (%) SASO ASTMA615:2015

(%)

D8 8 0.395 - 6 ±6 ±8 -6

D10 10 0.617 - 6 ±4.5 ±6 -6

D12 12 0.888 - 6 ±4.5 ±6 -6

D14 14 1.210 - 6 ±4.5 ±5 -6

D16 16 1.580 - 6 ±4.5 ±5 -6

D18 18 2.000 - 6 ±4.5 ±5 -6

D20 20 2.470 - 6 ±4.5 ±5 -6

D22 22 2.980 - 6 ±4.5 ±4 -6

D25 25 3.850 - 6 ±4.5 ±4 -6

D28 28 4.830 - 6 ±4.5 ±4 -6

D30 30 5.550 - 6 ±4.5 ±4 -6

D32 32 6.310 - 6 ±4.5 ±4 -6

D36 36 7.990 - 6 ±4.5 ±4 -6

D40 40 9.864 - 6 ±4.5 ±4 -6

TOLERANCE (AGAINST NOMINAL MASS)

Rebar MarkingDeformed bars produced at Qatar Steel conform to various national and international standards such as, BS 4449:2005 Grade b500b and BS 4449:2005

Steel Billets

SPECIfICATIONChemical Composition: (As below or as per customer requirement)

CHEMISTRy %C %SI %MN %P %S N (ppm)

0.15~0.25 0.12~0.20 0.60~0.80 0.035 max 0.035 max 120 max

SR. NO.

ITEM ACCEPTANCE CRITERIA

1. LENGTH3.8 ~12 meter (150 Section) (±50mm)6.0 ~12 meter (130 Section) (±50mm)

2. SECTION 150 X 150 mm2 or 130 X 130 mm2

3. fACE LENGTH ± 3 mm

4. RHOMBODITy* 5 % Max

5. CORNER RADIUS 8 mm

6. STRAIGHTNESS Camber 5mm/meter

7. BENDINGNot more than 5mm in 1 meterNot more than 30mm in 6 meterNot more than 60 mm in 12 meter

8. ANGULAR TWISTNot more than 1 degree per meter and not more than 6 degree over 12 meter length.

9. CUTTING Both ends will be Gas Cut

10. IDENTIfICATIONAt the end of each billet cast number will be stamped or written by Paint.

11. SURfACE

The billets will be free from surface imperfection which impair the product Quality such as longitudinal cracks, transverse cracks, Deep Ripple mark, Scab & thick scale, slag Patches, surface blow holes & Internal quality should be free from harmful defects, like surface pinholes, blow hole, pipes, voids and internal crack.

As Qatar Steel have open casting process, chances of minor surface pinholes are there and it will not impair the product quality.

- Note: Tramp Elements (Ni + Cr + Cu + Mo) = 0.30% max

Physical Analysis

* % Rhombodity =

1110

Note: Other specifications / sizes as per any international standard or meeting any other special requirement can be supplied as per customer›s requirement.

Grade %C %Mn %Si %P %SyS

[MPa]TS

[MPa]%El

%Agt / %Ra

End Applica-tion

SAE 10060.08 Max

0.25 – 0.40

0.15 Max

0.035 Max

0.025 Max

290 – 240

415 – 340

35 Min

--

Wires for miscellaneous application/Galvanized

Wire

CAQ Cable Armor Quality

0.04- 0.06

0.30 - 0.40

0.030 Max

0.035 Max

0.025 Max

240 - 300

340 - 380

30 Min

70 Min

Cable Armoring

Wires

EWNR/S1/SWRY11

0.04- 0.06

0.40 - 0.60

0.050 Max

0.035 Max

0.025 Max

250-300

390 Max

30 Min

70 Min

Stick Weld-ing Elec-trodes

SAE 10080.06 – 0.10

0.30 – 0.50

0.15 Max

0.035 Max

0.025 Max

250 – 300

350 – 425

30 Min

--

Galvanized wire for

fencing/poultry farm/barbed

wire

SAE 10120.10 – 0.15

0.30 – 0.60

0.15 Max

0.035 Max

0.025 Max

275 – 325

400 – 475

30 Min

-- Wire Mesh

SAE 10180.15 – 0.20

0.60 – 0.90

0.10-0.35

0.035 Max

0.025 Max

300 – 350

450 – 525

22 Min

--

Wires for miscellane-ous applica-

tion

ASTM A615 GR60

0.32 Max

0.60 – 1.00

0.35 Max

0.035 Max

0.025 Max

420 Min

620 Min9

Min-- RCC

Construction

ASTM A615 GR75

0.32 Max

0.60 - 1.00

0.35 Max

0.035 Max

0.025 Max

520 Min

690 Min7

Min-- RCC

Construction

BS4449: 2005

GRB500B

0.24 Max

0.60 – 1.00

0.35 Max

0.035 Max

0.025 Max

500-650

YS x 1.08 Min

-- 5 Min RCCConstruction

BS4449 :2005

GR B500C

0.24 Max

0.60 - 1.00

0.35 Max

0.035 Max

0.025 Max

500-650

> YS x 1.15< YS x 1.35

--7.5 Min

RCCConstruction

ISO6935-2:2007

B 500B-R

0.32 Max

0.60 - 1.00

0.35 Max

0.050 Max

0.050 Max

500 Min

YS x 1.08Min

14 Min

5 Min RCC Construction

SASO ASTMA615:2015

0.33 Max

1.80 Max

0.35 Max

0.050 Max

0.050 Max

420 Min

620 Min9

Min-- RCC

Construction

Coils

SPECIfICATION

COIL WEIGHT & DIMENSION COIL WEIGHT & DIMENSION

Inner Diameter (MM) : 850 – 950 Decarburization : 1% max of wire rod diameter

Outer Diameter (MM) : 1100-1200 Surface Defect : 1% max of wire rod diameter

Coil Weight (Kg) : 1050 -1200 Cold Up-settability: 67% (Billet route )

PRODUCT SIZE:

Products Size - MM

Wire Rod 5.5 6.0 6.5 7.0 8.0 9.0 10 11 12 14 16 --

Rebar In Coil -- -- -- -- 8.0 -- 10 -- 12 14 16 --

Wire Rod Grades: SAE1006/CAQ/EWNR/SAE1008/ SAE1012/ SAE1018/ SAE1042/ SAE 1045/ SAE1060/ SAE1065/ SAE1070/ SAE1080

Rebar in Coil: ASTM A615 GR60 / BS4449:2005 GRB500B / ISO 6935-2

Dimensional Tolerances of Wire Rods:

COIL IDENTIfICATION Each coil will have a tag with a unique coil number and heat number

STANDARDWIRE ROD SIZE—

MMTOLER-

ANCE-MM +/-OUT Of ROUND-

MMREMARKS

QS FZE 5.5 - 16.0 0.20 0.30 MMQS FZE Toler-ance is Half of

- ASTM Tolerance

ASTM A510 5.5 - 16.0 0.40 0.60 MMGeneral require-

ments

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Hot Briquetted Iron - HBI

SPECIfICATIONChemical Composition:

Physical Analysis

Bulk Density (tons/m3) 2.4 ~ 2.7

Apparent Density (tons/m3) 4.9 Min

Average Size (mm) 106 X 48 X 32

Size Under ¼ Inch at Loading Port (mm) 5.0 % Max

PARAMETER GUARANTEED ExPECTED

Total Iron (T.fe) 91.0% Min 91.5%

Metallic Iron (M.fe) 85.0% Min 85.5%

Metallisation 93.40% Min 93.90%

Carbon (C) 1.30 % Max 1.10%

Phosphorous (P) 0.050% Max 0.040%

Sulphur (S) 0.0050% Max 0.001%

Total Gangue(CaO+Al2O3+MgO+SiO2)

4.8% Max 4.20%

Cold Direct Reduced Iron - DRI


Bulk Density (tons/m3) 1.6 ~ 1.9

Size Under 5 mm at Loading Port 5.0 % Max

PARAMETER GUARANTEED ExPECTED

Total Iron (T.fe) 91.0% Min 92.0%

Metallic Iron (M.fe) 85.0% Min 86.0%

Metallisation 93.0% Min 94.0%

Carbon (C) 2.20% Min 2.40%

Phosphorous (P) 0.06% Max 0.04%

Sulphur (S) 0.01% Max 0.002%

Total Gangue(CaO+Al2O3+MgO+SiO2)

4.8% Max 4.20%

Physical Analysis

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Calcined Lime


By- ProductsThese are offered upon availability

• Mill Scale• Iron Ore-Pellet Chips & Fines• Undersize Limestone• Undersize Dolostone

Physical Properties

Type of Packing:

ELEMENTS GUARANTEED

Calcium Oxide (CaO) 92.0% Min

Magnesium Oxide (MgO) 2.0% Max

Silica (SiO2) 1.0% Max

Alumina (Al2O3) 0.30 % Max

Sulfur(S) 0.06% Max

LOI 4.5% Max

Size Range 25 ~ 80 mm

Size above 80 mm at Loading Port

3.0% Max

Size below 25 mm at Loading Port

10.0% Max

The material will be packed in jumbo bags of 1.5 Ton capacity with internal liner.

Remarks: Qatar Steel ensures that the product will be free from clay, dirt & other foreign materials.

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Dololime


Physical Specification

Size Range 5 mm ~ 80mm

Size Under 5 mm at Loading Port 10.0 % Max

Size Above 80mm at Loading Port 3.0% Max

ELEMENTS GUARANTEED

CaO 54.0% Min

MgO 32.0% Min

SiO2 2.0 Max

AI2O3 0.5% Max

Phosphorous (P) 0.025% Max

Sulphur (S) 0.025% Max

fe2O3 0.5% Max

LOI (at Load Port) 5.0% Max

SPECIfICATIONChemical Compoition:

Physical Properties

Size above 200 µm at Loading Port 4.0% Max

Remarks: Qatar Steel ensures that the product will be free from clay, dirt & other foreign materials.

Type of Packing

The material will be packed in jumbo bags of 1.5 Ton capacity with internal liner.

ELEMENTS GUARANTEED

Calcium Oxide (CaO) 50.0% Min

Magnesium Oxide (MgO) 2.5% Max

Silica (SiO2) 1.0% Max

Alumina (Al2O3) 0.5% Max

Phosphorus (P) 0.025% Max

Sulfur(S) 0.05% Max

ferric Oxide (fe2O3) 2.0% Max

Moisture 0.5% Max

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Pulverized Limestone

Qatar Metals Coating Company (Q-Coat) is one of the largest in the world.

We produce fusion bonded epoxy coated steel reinforcing bars (FBECR) with an annual capacity of 100,000 M/T.

Founded in 1990 as a joint venture between Qatar Steel and Qatar Industrial Manufacturing Company.

We have established ourselves as a successful regional industrial enterprise and earned a good reputation for quality, safety, productivity and reliability.

Our FBECR products are sold in addition to GCC, Middle East and Far East which proved their success in protecting steel reinforcement against corrosion in a wide variety of concrete structures.

We are proud of our achievements to date and remain committed to continue our contribution towards our customer and product satisfaction.

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Quality Assurance:At Q-Coat, we are totally committed to achieve and maintain the highest standards of quality in every area of our operations. This commitment to quality begins with the steel reinforcing bars that we source from QATAR STEEL COMPANY known throughout the gulf for its quality and reliability. The products are inspected for bar anchor profile, coating holidays, coating thickness, coating adhesion, and coating flexibility by 180 Deg. Bend tests at various stages of the production process.

The quality management system of Q-Coat complies with ISO 9001 quality standards applicable for the production of fusion bonded epoxy coated rebar.

Q-Coat’s technical expertise in epoxy coating is reflected in its consistent product quality with accreditations received from various authorities and companies, such as, KAHRAMAA (Qatar General Electricity & Water), QAFCO (Qatar Fertilizer Company) and ISO 9001:2008 Quality Management System.

The application of fusion-bonded epoxy coating to steel reinforcement involves four major process steps:1. Surface Preparation: Rebars are blast cleaned to a near White Metal Finish using

steel abrasive grit.2. Heating: Rebars are heated up to 230 deg. Celsius using Induction Heater.3. Powder Application: Heated rebars are passed through a powder spray booth, where

fused particles melt to form a continuous film.4. Curing: Following powder application, coated rebars are cured by water quenching.

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Epoxy Coated Rebars

With a vision to provide a solution to corrosion reinforcing ofsteel concrete, Muntajat offers Epoxy Coated Rebars.

Fusion Bonded Epoxy Coating is one of the corrosion resistive methods used extensively in construction to protect steel from corrosion, by preventing chlorides and moisture from reaching the surface of the steel. The coating provides long term adhesion to steel and ensures the reinforcing bars are protected over a wide temperature range and all climatic conditions to last for 75 to 100 years of service life.

Some of the main advantages are:• Long-term corrosion resistance• Excellent prevention to salt damage• Excellent impact resistance, bendability, and adhesion• Good bond strength with concrete

Q-Coat Product Range

Epoxy Coated Rebar ranging in diameter from 8mm to 40mm Length: 12 Meter / Customized (6 - 12 Meter)

International Standard of fBECR & Q-Coat Average

PARAMETER ASTM A775 :2017 BS ISO14654:1999Q – COAT (AS PER

CRSI)

Bar Anchor Profile 1.5 - 4 Mils 1.96-2.75 mils 2.0-4.0 mils

Coating Thickness7-12 mils [8-16mm]

7-16 mils [18-40 mm]

7 - 12 milsComplying with both

standards

Coating Holidays 3 holidays/m(max) 4 holidays/m(max) 3 holidays/m (max)

Coating flexibility 180° bent using 8D180° bent using 4D

& 6DComplying with both

standards

Cathodic Disbondment Test

Not Applicable

Average Disbond-ment Radius of Three

Coated Stel Rein-forcing bars shall not

exceed 2mm.

Average Disbondment Radius of Three Coated

Stel Reinforcing bars shall not exceed2mm

- 4mm.

Bond strength with the concrete

Shall not be less than 85 % of the uncoated

bars.

Shall not be less than 85 % of the uncoated bars.

Bond strength isimproved with 20-30%more rib height and rib

area

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Morocco - Casablanca8 rue Ali Abderrazak, Residence, PLEIN CIEL. Casablanca, Morocco.Tel.: +212 522 23 38 86 - [email protected] Pakistan - Karachi2nd Floor, Bahria Complex II, M. T. Khan Road, Karachi, Pakistan.Tel.: +9221 35611595/6/7 - ext 106 - [email protected] Philippines - ManilaOffice # 8, Level 40 PBCom Tower, 6795 Ayala Avenue, Corner V.A Rufino St. 1226,Makati City, Philippines.Tel.: +632 7899105 - [email protected] Sri Lanka - ColomboLevel 34,East Tower,World Trade Center,Colombo 01, Sri Lanka.Tel.: +94 11 244 5777 - [email protected] Thailand - Bangkok20th Floor, Room 2009, SJ Infinite One Business Complex, 349 Vibhavadi - Rangsit road Chompol, Chatuchak, Bangkok 10900, Thailand.Tel.: +662 018 3549 - [email protected] Turkey - IstanbulBuyukdere Cad. Noramin Is Merkezi NO:237 A111 Maslak Sariyer - Istanbul.Tel.: +902 1 2329 8250 - [email protected] Vietnam - Ho Chi Minh Suite 63, 21 Floor, Saigon Centre Tower 2, 67 Le Loi Street, Ben Nghe Ward, Dist. 1, Ho Chi Minh City, Vietnam.Tel.: +84 28 7302 8171 - [email protected]

For general queries please contact [email protected]

MUNTAJAT B.V. GLOBAL NETWORK

Netherlands (HQ) - The HagueWTC The Hague, 19th Floor, Toren E, Prinses Margrietplantsoen 78-A, 2595 BR Den Haag, The Hague, The Netherlands.Tel.: +31 70 2055630 - [email protected] Bangladesh - DhakaPlanners Tower, 13/A Sonargoan Road 15th Floor, Room No.- 5 Dhaka-1000, Bangladesh.Tel.: +880-2-9675737 - [email protected] China - Guangzhou Room 1403, CITIC Plaza, No. 233. Tian He Road North, Guangzhou, 510613,P.R. China.Tel.:+86 20 8752 1661 - [email protected] China - Shanghai Room 2505, Lippo Plaza, No. 222 Middle Huaihai Road, Shanghai, 200021, P.R.China.Tel.: +86 21 5302 0655 - [email protected] Egypt - Cairo10 El Nozha St. - Ard Al Golf, Heliopolis, Cairo, Egypt.Tel.: +2 02 26901223 - [email protected] Jordan - AmmanMecca St., AL-Husseini Complex, Building No.152 , 5th Floor, Office No.502, Amman - Jordan.Tel.: +962 6 5522676/5522678 - [email protected] India - MumbaiLotus Corporate Park 901, ‹A› Wing Near Jay Coach Signal, Western Express Highway, Goregaon Mumbai, Maharashtra 400063, India.Tel.: +91 22 42465700 - [email protected]

Italy - MilanoLargo Francesco Richini, 620122 Milano – Italy.Tel.: +39 333 7037731 - [email protected]

Malaysia - Kuala LumpurLot 17-04, Level 17, Menara HLA, No. 3 Jalan Kia Peng, Kuala Lumpur, Malaysia.Tel.: +603-21667122 - [email protected]

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metals technical booklet · as/nzs 4671:2001 gr 500n qs600 ( ys> 600m pa ) iso 6935-2 b500b-r...

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