unisil euro brochure

Electrical SteelGrain OrientedUnisil, Unisil-H

2

Designations and registered trademarks

Grain oriented electrical steel from Orb Electrical Steels Ltd is supplied under thetrademarks of UNISIL and UNISIL-H

UNISIL refers to the conventional grain oriented steel andUNISIL-H refers to the high permeability grain oriented material.Heat resistant insulation coatings applied to these products are described by thetrademarks of MAGNITE for UNISIL and MAGNITE-S for UNISIL-H.

Introduction

This publication describes the range of grain oriented electrical steels -Unisil-H and Unisil - produced by Orb Electrical Steels Ltd. Theseproducts comply with the latest specifications of the EuropeanCommittee for Standardization and the International ElectrotechnicalCommission.

ContentsPage

Introduction 2Quality assurance 3Environmental management system 3Research and development 3Customer service 3Specific total loss 4Epstein tests 4Single sheet tests 5Magnetic properties 5Certificate of Magnetic Testing 5UKAS Accreditation 5Typical physical properties 6Insulation coatings 6Magnetostriction 6Dimensions, ranges and tolerances 7Annealing by the customer 8Typical data curves 9Typical specific total loss data at 50 Hz 46Specific total loss data at 60 Hz 47

3

Research and developmentOrb Electrical Steels Ltd draws on theextensive technical support of the Technical,Research and Development Group ofCogent Power Ltd. The company has investedheavily in new plant and in the developmentand installation of on-line sensors.In particular, Cogent Power Ltd is a worldleader in the technology of on-line sensorsand all material at Orb is monitored atspecified points through the productionprocess.

Additionally, the power loss of the steel stripis measured continuously at the finalinspection stage to ensure a product whichhas consistent magnetic properties over thetotal length of the strip. Continual researchinto the optimization of the processingvariables has resulted in a product of lowresidual stress which is suited to the modernproduction techniques employed in theelectrical machine construction industry

Quality assuranceThe products described in this brochurerepresent the latest materials in thedevelopment of grain oriented electrical steel.They are subjected to rigorous quality controlprocedures throughout the processing routes.Importantly, the quality management systemof Orb Electrical Steels Ltd is approved byLloyd’s Register Quality Assurance Ltd to theQuality Management System Standard BS ENISO 9001 applicable to the development andmanufacture of electrical steels.

Environmental managementsystemOrb Electrical Steels Ltd recognises that theprotection of the environment is a key priorityof the company and this ideal is fullyintegrated into all aspects of the business. TheEnvironmental Management System of OrbElectrical Steels Ltd has been approved byLloyd’s Register Quality Assurance to theEnvironmental Management System StandardBS EN ISO 14001 applicable to the design andmanufacture of electrical steels.

Customer serviceThe Technical, Research & DevelopmentGroup of Cogent Power Ltd is pleased tooffer a full consultancy service which isavailable to customers who require specialisttechnical data that may not be included inthis brochure.

4

IEC 60404-8-7. As set out in these standardsthe measurement of specific total loss isperformed according to the 25 cm Epsteinframe method described in IEC 60404-2 andEN 60404-2.

Unisil gradeUnisil gradeUnisil gradeUnisil gradeUnisil grade ThicknessThicknessThicknessThicknessThickness Specific total loss Specific total loss Specific total loss Specific total loss Specific total loss J at H =J at H =J at H =J at H =J at H =at frequency of 50 Hzat frequency of 50 Hzat frequency of 50 Hzat frequency of 50 Hzat frequency of 50 Hz 800 A/m, 50 Hz800 A/m, 50 Hz800 A/m, 50 Hz800 A/m, 50 Hz800 A/m, 50 Hz

IECIECIECIECIEC ENENENENEN6040604060406040604044444 -----88888 -7-7-7-7-7 1010710107101071010710107 Guaranteed MaxGuaranteed MaxGuaranteed MaxGuaranteed MaxGuaranteed Max Typical Typical Typical Typical Typical TypicalTypicalTypicalTypicalTypical

J=1,5 TJ=1,5 TJ=1,5 TJ=1,5 TJ=1,5 T J=1,7 TJ=1,7 TJ=1,7 TJ=1,7 TJ=1,7 T J=1,5 TJ=1,5 TJ=1,5 TJ=1,5 TJ=1,5 T J=1,7 TJ=1,7 TJ=1,7 TJ=1,7 TJ=1,7 T

mmmmmmmmmm W/kgW/kgW/kgW/kgW/kg W/kgW/kgW/kgW/kgW/kg W/kgW/kgW/kgW/kgW/kg W/kgW/kgW/kgW/kgW/kg TTTTT

Unisil-HUnisil-HUnisil-HUnisil-HUnisil-HM90-23P5 M90-23P#* 0,23 – 0,90 0,62 0,88 1,90M100-23P5 M100-23P 0,23 – 1,00 0,66 0,92 1,91

M95-27P#* 0,27 – 0,95 0,68 0,92 1,90M103-27P5 M103-27P 0,27 – 1,03 0,71 0,97 1,93

M105-30P5 M105-30P 0,30 – 1,05 0,77 1,02 1,93M111-30P5 M111-30P 0,30 – 1,11 0,80 1,08 1,93M117-30P5 M117-30P 0,30 – 1,17 0,84 1,14 1,92

UnisilUnisilUnisilUnisilUnisilM120-23S5 M120-23S 0,23 0,77 1,20 0,72 1,09 1,83M127-23S5 M080-23N 0,23 0,80 1,27 0,76 1,15 1,83

M130-27S5 M130-27S 0,27 0,85 1,30 0,77 1,12 1,83M140-27S5 M089-27N 0,27 0,89 1,40 0,83 1,21 1,83

M140-30S5 M140-30S 0,30 0,92 1,40 0,84 1,21 1,83M150-30S5 M097-30N 0,30 0,97 1,50 0,91 1,31 1,83

M150-35S5 M150-35S 0,35 1,05 1,50 0,95 1,35 1,83M165-35S5 M111-35N 0,35 1,11 1,65 0,99 1,42 1,83

M175-50N* 0,50 1,75 - 1,35 1,92 1,82

Epstein testsGrain oriented electrical steels are gradedaccording to the specifications of the Euro-pean Standard EN 10107 and the Internatio-nal Electrotechnical Commission Publication

Specific total loss

Note 1: J represents the peak magnetic polarization in Teslas. H represents the peak magneticfield strength in A/m.

Note 2: The grades marked* do not appear in the EN standard designation.Note 3: The grades marked # are enhanced lower loss high permeability grades. The final

processing to achieve these values of specific total loss may include a ball unit domainrefinement treatment. This process imparts a defined stress treatment to the surfaceof the sheet which is not visible and does not cause a deterioration of the surfaceinsulation coating. Accordingly, these grades of material should not be subjected to astress relief anneal treatment. The specific total losses are measured by the singlesheet method of IEC 60404-3.

5

Specific total loss

Single sheet testsThe specific total loss of grain orientedelectrical steels may increase if the steel sheetretains a degree of internal stress after finalprocessing. These stresses may be removed bysubjecting the cut transformer laminations to astress relief anneal. However, the modernproduction processes and controls for Unisiland Unisil-H realise a product with very lowlevels of internal stress. The material has losscharacteristics that are so close to its bestpotential value that annealing of wide strip bythe customer is becoming less common.

Specific total loss values based on annealedEpsteins may be less relevant to the user thanlosses measured on single sheets which havebeen tested in the non-stress relief annealedcondition. Therefore, Orb Electrical Steels Ltdalso samples and tests all coils of Unisil andUnisil-H in the single sheet non-annealedcondition.

The method of measurement of the powerloss in single sheet test specimens ofdimensions 500 mm x 500 mm is thatdescribed by IEC 60404-3. It is of keyimportance that this standard is being revisedto incorporate an informative annex tocorrelate single sheet and Epstein tests ongrain oriented material. The range of con-version factors which is declared in the draftstandard IEC 60404-3 Annex C has beenaccepted by Orb Electrical Steels Ltd toproduce Epstein test results from single sheetmeasurements.Therefore, where power loss data are requiredfrom single sheet tests – as, for example, in thecase of domain refined material – the methodof IEC 60404-3 Annex C will be followed.

Magnetic properties

Certificate of magnetic testingThe magnetic properties of every coil of Unisiland Unisil-H are reported by the MagneticTesting Laboratory in the Certificate ofMagnetic Testing. In addition to the specifictotal loss at the guarantee level of peakmagnetic flux density ( J = 1,5 T, or 1,7 T),measurements are taken of the specificapparent power, magnetic field strength andpermeability. The Certificate of MagneticTesting includes these data so that thecustomer receives, as well as confirmation ofthe loss guarantee, a comprehensive summaryof the loss and magnetic properties for eachslit coil of material that is purchased.

UKAS Accreditation

The magnetic measurement systems employedat Orb Electrical Steels Ltd are traceable tonational references of measurementthrough the Standards Laboratory ofthe Technical, Research andDevelopment Group. This laboratoryis accredited as United KingdomAccreditation Service (UKAS)Calibration Laboratory No 0082 forthe measurement of power loss inelectrical steel strip. The laboratory isauthorized to issue UKAS certificateswhich are accepted internationally. 0082

6

Unisil-H Unisil

Density, kg/dm3 7,65 7,65Silicon content, % 3,1 3,1Resistivity, microhm-cm 48 48

0,2 % Proof stress, N/mm2 (kg/mm2)0° to the rolling direction 320 (32,6) 310 (31,6)90° to the rolling direction 340 (34,7) 330 (33,7)

Ultimate tensile strength, N/mm2 (kg/mm2)0° to the rolling direction 350 (35,7) 350 (35,7)90° to the rolling direction 400 (40,8) 400 (40,8)

% elongation on 80 mm gauge length0° to the rolling direction 10 1090° to the rolling direction 30 30Hardness, HV 2,5 kg 175 175Bend test >6 >6

Stacking factor, %0,23 mm 96,0 96,00,27 mm 96,0 96,00,30 mm 96,5 96,50,35 mm N.A. 97,00,50 mm N.A. 97,0

Typical physical properties

Insulation coatings

Magnite and Magnite-S are heat resistantinsulation coatings applied to Unisil andUnisil-H respectively. The coatings areapproximately 3 microns thick per side andprovide good electrical resistance with only amarginal effect on stacking factor. Thecoatings have good adherence properties andwill withstand normal punching operations.The coatings give some protection againstcorrosion and are unaffected by, and in turndo not affect, transformer oil.

Magnetostriction

The magnetostriction coefficient of thetransformer core lamination is a significantparameter in determining the acoustic noiseoutput of the transformer. The Magnite andMagnite-S coatings are beneficial in controllingthe magnetostriction of the material byimparting a tensile stress to the steel.Magnite-S applies a greater degree of controlto Unisil-H which results in a product of lowermagnetostriction.

7

( )

Dimensions, ranges and tolerances

Internal bore size of coil

Internal bore size is nominally 508 mm.

Nominal width rangeThe nominal width range is from 10mm to915 mm, and greater by special arrangement.The width tolerance for side trimmed coil is0 + 2,0 mm.

Thickness tolerance*Thickness tolerance for side trimmed coil up to915 mm wide is ±0,030** mm. The thicknessvariation along the length of the strip does notexceed 0,030 mm within a 1,5 m long sheet,and the thickness variation across the width,excluding the outer 40 mm, does not exceed0,020 mm.

The edge camber on sheets greater than 150mm wide does not exceed 0,5 mm in a 1,5 mlength of strip.

Weight of wide coil

The maximum weight of wide coil is 5 tonnes.

Slit coil width tolerances*

Note: positive tolerances are available by arrangement

Cut length tolerances

Over Up to and Width Edge burrincluding tolerance

mm mm mm mm

----- 150 +0 - 0,2 0,025 max150 400 +0 - 0,3 0,025 max400 750 +0 - 0,5 0,025 max750 915 +0 - 0,6 0,025 max

Sheet weight per unit area

Over Up to and Notincluding resheared Resheared

mm mm

- - - - - 20002000200020002000 -0 + 1 %-0 + 1 %-0 + 1 %-0 + 1 %-0 + 1 % -0 + 1,5-0 + 1,5-0 + 1,5-0 + 1,5-0 + 1,520002000200020002000 30003000300030003000 o o o o orrrrr10 mm max10 mm max10 mm max10 mm max10 mm max -0 + 2,0-0 + 2,0-0 + 2,0-0 + 2,0-0 + 2,0

Sheets are available in cut lengths of up to 3000 mm.Alternative tolerances can be arranged for specificorders.

* in accordance with EN 10107

** For the thickness of 0,23 mm the thickness toleranceis ±0,025 mm.

Nominal thickness Weight per unit areamm kg/m2

0,230,230,230,230,23 1,7211,7211,7211,7211,7210,270,270,270,270,27 2,0232,0232,0232,0232,0230,300,300,300,300,30 2,2572,2572,2572,2572,2570,350,350,350,350,35 2,6542,6542,6542,6542,6540,500,500,500,500,50 3,7913,7913,7913,7913,791

8

Annealing by the customer

Batch annealing (760°C to 840°C,typically 800°C ±20°C)

Mesh belt annealing (800°C ±10°C)

Stacks of laminations are annealed in a meshbelt furnace when it is required that they areheld at the specified temperature for aboutone hour.

Annealed laminations are subject todistortion, but this may be controlled byadjustment of the stack height and coolingrate in the inert atmosphere.

Note: It is important to avoidcarbonaceous and oxidisingconditions which wouldresult in the magneticproperties of the laminationsbeing impaired. Advice andguidance on the correctannealing practices for Uni-sil and Unisil-H are availablefrom the Technical, Researchand Development Group,Cogent Power Ltd.

The material is packed carefully into an innercover before annealing for two hours at thespecified temperature in a dry atmosphere.Excessive temperature gradients during theheating and cooling cycles must be avoided inorder to prevent lamination distortion. Itshould be noted that the size of the lami-nation will influence the duration of theannealing cycle.

Roller hearth annealing (800°C ±10°C)

Roller hearth annealing (30 to 60 seconds atthe specified temperature in an airatmosphere) of single laminations shouldresult in the laminations being stress free andnon-oxidised (the rapid anneal preventsoxidation).

Annealing of wound toroidal cores

Wound toroidal cores may be annealed inbatch furnaces or in mesh belt furnaces underthe conditions described above. It isimportant that the cores are not excessivelystressed during winding and that they are notsubjected to rapid rates of cooling.

Unisil and Unisil-H are sensitive to strainsimposed by shearing, punching and handling.Careful processing and the use of correctlyadjusted sharp tungsten carbide tools andblades are necessary to minimize theintroduction of residual stresses which cancause a marked deterioration in the specifictotal loss. In general, the stress relief annealingof strip wider than 200 mm will result in a lossimprovement of 2 % to 3 %. At slit widths ofless than 200 mm fabrication stresses cancause a significant increase in specific total lossand it may be advisable for the customer tocarry out a stress relief anneal as the lastoperation before assembly into a core. Severalmethods of stress relief annealing are available.

9

Typical data curvesThe following pages contain data curves to show the typicalcharacteristics of Unisil-H and Unisil grades of material.

Specific total loss

Unisil-H Page Unisil Page

M90-23P 10 M120-23S 17M100-23P 11 M080-23N 18M95-27P 12 M130-27S 19M103-27P 13 M089-27N 20M105-30P 14 M140-30S 21M111-30P 15 M097-30N 22M117-30P 16 M150-35S 23

M111-35N 24M175-50N 25

Specific apparent power


M100-23P 26 M120-23S 31M103-27P 27 M130-27S 32M105-30P 28 M140-30S 33M111-30P 29 M150-35S 34M117-30P 30 M175-50N 35

A.C. magnetization


M100-23P 36 M120-23S 41M103-27P 37 M130-27S 42M105-30P 38 M140-30S 43M111-30P 39 M150-35S 44M117-30P 40 M175-50N 45

10

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0

Specific total loss vs peak magnetic polarizationGrade: Unisil-H M90-23P

Typical curve

Thickness: 0,23 mmConventional density: 7,65 kg/dm3

Frequency: 50 HzTest method: Single sheet test at 0° to the rolling direction.

Peak magnetic polarization, T

Spec

ific

tota

l los

s, W

/kg

11

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve


Frequency: 50 HzTest method: Epstein strips at 0° to the rolling direction.

Samples stress relief annealed.


Spec

ific

tota

l los

s, W

/kg

12

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve


Frequency: 50 HzTest method: Single sheet test at 0° to the rolling direction.


Spec

ific

tota

l los

s, W

/kg

13

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

14

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

15

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

16

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

17

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0

Specific total loss vs peak magnetic polarizationGrade: Unisil M120-23S

Typical curve





Spec

ific

tota

l los

s, W

/kg

18

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0

Specific total loss vs peak magnetic polarizationGrade: Unisil M080-23N

Typical curve





Spec

ific

tota

l los

s, W

/kg

19

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

20

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

21

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

22

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

23

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

24

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

25

Spec

ific

tota

l los

s, W

/kg

0,5 1,0 1,5 2,00,1

0,5

1,0

1,5

2,0


Typical curve





Spec

ific

tota

l los

s, W

/kg

26

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0

Specific apparent power vs peak magnetic polarizationGrade: Unisil-H M100-23P

Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

27

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

28

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

29

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

30

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

31

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0

Specific apparent power vs peak magnetic polarizationGrade: Unisil M120-23S

Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

32

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

33

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

34

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0


Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

35

1,0

10,0

5,0

50,0

20,0

0,5

0,10,5 1,0 1,5 2,0

Specific apparent power vs peak magnetic polarizationGrade: Unisil M175-50N

Typical curve





Spec

ific

appa

rent

pow

er, V

A/k

g

36

2,0

1,5

1,0

0,5

1010

010

0010

000

A.C.

mag

netiz

atio

n cu

rve

Peak

mag

netic

pol

ariz

atio

n vs

pea

k m

agne

tic fi

eld

stre

ngth

Gra

de: U

nisi

l-H M

100-

23P

Typi

cal c

urve

Thic

knes

s:0,

23 m

mC

onve

ntio

nal d

ensit

y:7,

65 k

g/dm

3

Freq

uenc

y:50

Hz

Test

met

hod:

Epst

ein

strip

s at

0°

to t

he ro

lling

dire

ctio

n.Sa

mpl

es s

tres

s re

lief a

nnea

led.

Peak

mag

netic

fiel

d st

reng

th, A

/m


37

2,0

1,5

1,0

0,5

1010

010

0010

000

A.C.

mag

netiz

atio

n cu

rve

Peak

mag

netic

pol

ariz

atio

n vs

pea

k m

agne

tic fi

eld

stre

ngth

Gra

de: U

nisi

l-H M

103-

27P

Typi

cal c

urve

Thic

knes

s:0,

27 m

mC

onve

ntio

nal d

ensit

y:7,

65 k

g/dm

3

Freq

uenc

y:50

Hz

Test

met

hod:

Epst

ein

strip

s at

0°

to t

he ro

lling

dire

ctio

n.Sa

mpl

es s

tres

s re

lief a

nnea

led.

Peak

mag

netic

fiel

d st

reng

th, A

/m


38

2,0

1,5

1,0

0,5

1010

010

0010

000

A.C.

mag

netiz

atio

n cu

rve

Peak

mag

netic

pol

ariz

atio

n vs

pea

k m

agne

tic fi

eld

stre

ngth

Gra

de: U

nisi

l-H M

105-

30P

Typi

cal c

urve

Thic

knes

s:0,

30 m

mC

onve

ntio

nal d

ensit

y:7,

65 k

g/dm

3

Freq

uenc

y:50

Hz

Test

met

hod:

Epst

ein

strip

s at

0°

to t

he ro

lling

dire

ctio

n.Sa

mpl

es s

tres

s re

lief a

nnea

led.

Peak

mag

netic

fiel

d st

reng

th, A

/m


39

2,0

1,5

1,0

0,5

1010

010

0010

000


A.C.

mag

netiz

atio

n cu

rve

Peak

mag

netic

pol

ariz

atio

n vs

pea

k m

agne

tic fi

eld

stre

ngth

Gra

de: U

nisi

l-H M

111-

30P

Typi

cal c

urve

Thic

knes

s:0,

30 m

mC

onve

ntio

nal d

ensi

ty:

7,65

kg/

dm3

Freq

uenc

y:50

Hz

Test

met

hod:

Epst

ein

strip

s at

0°

to t

he r

ollin

g di

rect

ion.

Sam

ples

str

ess

relie

f an

neal

ed.

Peak

mag

netic

fiel

d st

reng

th, A

/m

40

2,0

1,5

1,0

0,5

1010

010

0010

000

A.C.

mag

netiz

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4646464646

Typical specific total loss data, W/kg at 50 Hz

Grade Specific total loss at frequency = 50 HzIIIIIEC EN 10107 J (T) =J (T) =J (T) =J (T) =J (T) =

60404-8-7 0,5 0,7 0,9 1,1 1,3 1,5 1,7 1,9

W/kg W/kg W/kg W/kg W/kg W/kg W/kg W/kg

Unisil-HUnisil-HUnisil-HUnisil-HUnisil-HM90-23P5 M90-23P* 0,135 0,221 0,325 0,457 0,620 0,880 1,44M100-23P5 M100-23P 0,141 0,232 0,344 0,487 0,660 0,915 1,44

M95-27P* 0,149 0,244 0,360 0,505 0,680 0,920 1,45M103-27P5 M103-27P 0,165 0,261 0,380 0,532 0,715 0,970 1,62

M105-30P5 M105-30P 0,114 0,197 0,300 0,425 0,585 0,768 1,02 1,70M111-30P5 M111-30P 0,118 0,210 0,321 0,452 0,615 0,800 1,08 1,75M117-30P5 M117-30P 0,126 0,220 0,338 0,475 0,640 0,842 1,14 1,85

UnisilUnisilUnisilUnisilUnisilM120-23S5 M120-23S 0,170 0,263 0,380 0,530 0,720 1,09 1,87M127-23S5 M080-23N 0,168 0,270 0,392 0,549 0,761 1,15 1,89

M130-27S5 M130-27S 0,178 0,282 0,415 0,575 0,775 1,12 1,87M140-27S5 M089-27N 0,110 0,178 0,290 0,427 0,596 0,830 1,21 1,90

M140-30S5 M140-30S 0,102 0,186 0,300 0,443 0,620 0,840 1,21 1,89M150-30S5 M097-30N 0,117 0,217 0,343 0,495 0,676 0,910 1,31 1,94

M150-35S5 M150-35S 0,125 0,227 0,356 0,510 0,705 0,950 1,35 2,03M165-35S5 M111-35N 0,137 0,248 0,380 0,545 0,750 0,990 1,42 2,21

M175-50N* 0,164 0,302 0,485 0,710 0,985 1,35 1,92 2,70

Note: The grades marked * do not appear in the EN standard designation.

4747474747

The information and data in this brochure are accurate to the best of Cogent's knowledge, but are intendedfor general information only. Applications suggested for the materials are described only to help the readermake his or her own evaluation and decision, and are neither guarantees nor to be construed as expressedor implied warranties of suitability for these and other applications. Cogent and its subsidiaries accept noliability in respect thereof.

Specific total loss, W/kg at 60 Hz

Note: The grades marked * do not appear in the EN standard designation.

Grade Specific total loss at frequency of 60 HzIEC EN 10107 Thickness Guaranteed Max Typical

60404-8-7 J = 1,5 T 1,7 T 1,5 T 1,7 T

mm W/kg W/kg W/kg W/kg

Unisil-HUnisil-HUnisil-HUnisil-HUnisil-HM90-23P5 M90-23P* 0,23 - 1,19 0,81 1,15M100-23P5 M100-23P 0,23 - 1,32 0,84 1,19

M95-27P* 0,27 - 1,23 0,90 1,20M103-27P5 M103-27P 0,27 – 1,35 0,93 1,28

M105-30P5 M105-30P 0,30 – 1,38 1,00 1,35M111-30P5 M111-30P 0,30 – 1,46 1,05 1,41M117-30P5 M117-30P 0,30 – 1,54 1,10 1,49

UnisilUnisilUnisilUnisilUnisilM120-23S5 M120-23S 0,23 1,01 1,57 0,94 1,43M127-23S5 M080-23N 0,23 1,06 1,65 0,99 1,50

M130-27S5 M130-27S 0,27 1,12 1,68 1,01 1,46M140-27S5 M089-27N 0,27 1,17 1,85 1,08 1,57

M140-30S5 M140-30S 0,30 1,21 1,83 1,09 1,59M150-30S5 M097-30N 0,30 1,28 1,98 1,18 1,70

M150-35S5 M150-35S 0,35 1,38 1,98 1,26 1,77M165-35S5 M111-35N 0,35 1,46 2,18 1,30 1,86

M175-50N* 0,50 2,27 - 1,89 2,65

Cog

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www.cogent-power.com

Cogent Power Ltd

Cogent Power Ltd is a multinational company comprising electricalsteels, laminations, transformer products, precision engineering andelectric motor design businesses. These form a unique company thatoffers the customer complete solutions, from steel through tocomponents; design to delivery.

Comprehensive Steel Product Range

The specialist product range of Cogent electrical steels extends fromthe high permeability grain oriented electrical steel for largetransformers to fully processed silicon steels for large rotating machinesand special non-alloyed semi-processed grades for smaller motors.Cogent is backed by internationally renowned steelmakers.

Product Information

This publication is part of a range of brochures that cover the followingproducts from Cogent, on electrical steel:• Grain Oriented electrical steels• Non-Oriented fully processed electrical steels• Non-Oriented semi-processed electrical steels• Thin Non-Oriented fully processed electrical steels• Magnetic Shielding

For all electrical steel enquiries please contact:

Cogent Power Ltd.PO Box 30NewportSouth Wales NP19 0XTUnited Kingdom

T: +44 1633 290 033F: +44 1633 290 067E: [email protected]

Cogent Power Ltd is a joint venture companyowned 75% by Corus and 25% by SSAB.

Surahammars Bruks ABPO Box 201S 735 23 SurahammarSweden

T: +46 220 34500F: +46 220 30372E: [email protected]

Orb Electrical Steels LtdPO Box 30NewportSouth Wales NP19 0XTUnited KingdomT: +44 1633 29 00 33F: +44 1633 29 45 42E: [email protected]

unisil euro brochure

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