Properties

Cold rolled pole sheet grades are classified according to their yield strength (EN 10265:1995). As well as guaranteed mechanical properties, they have guaranteed magnetic properties, but unlike other electrical steel grades, their magnetic properties are determined under direct current (DC) conditions. Full magnetic characterisation curves in DC and also at various frequencies are available on request.

This data sheet deals with the cold rolled grades that conform to the standard.

Advantages

High yield strength values allow these grades to withstand strong electromechanical forces. As well as excellent DC magnetic properties significantly superior to the requirements of the standard, these grades perform well on loss and induction levels at 50 Hz, thanks to a special chemical composition.

Applications

Cold rolled pole sheet grades are designed for large high-speed machines because of their excellent combination of mechanical strength and magnetic performance.

Recommendations for use

These properties are obtained without heat treatment after stamping. The material as supplied possesses all the required magnetic properties.

Brand correspondence

 
Thickness 0.65 mm
 EN 10265:1995IEC/CEI 60404-8-5:1989
250-65-TF 183 250-65-TF 183250-65-TF 183
300-65-TF 182 300-65-TF 182300-65-TF 182
350-65-TF 181 350-65-TF 181350-65-TF 181
400-65-TF 180 400-65-TF 180400-65-TF 180
 
Thickness 1.00 mm
 EN 10265:1995IEC/CEI 60404-8-5:1989
250-100-TF 183 250-100-TF 183250-100-TF 183
300-100-TF 182 300-100-TF 182300-100-TF 182
350-100-TF 181 350-100-TF 181350-100-TF 181
400-100-TF 180 400-100-TF 180400-100-TF 180
450-100-TF 180 AM FCE   
Grades in italics: not included in the standard

Dimensions

          
Thickness 0.65 mm 
 NotesBefore side trimmingSide trimmedSlit coilsSheet length 400 to 2500 mm
Min widthMax widthMin widthMax widthMin widthMax widthMin widthMax width
250-65-TF 18321030123060012002506004001130
300-65-TF 1822
350-65-TF 1812
400-65-TF 1802
          
Thickness 1.00 mm 
 NotesBefore side trimmingSide trimmedSlit coilsSheet length 400 to 2500 mm
Min widthMax widthMin widthMax widthMin widthMax widthMin widthMax width
250-100-TF 1831 & 21030123060012002506004001130
300-100-TF 1821 & 2
350-100-TF 1811 & 2
400-100-TF 1801 & 2
450-100-TF 180 AM FCE1 & 2

 

1 & 2. After prior agreement regarding sheet length; Side trimmed: max width 1250 after prior agreement
2. Side trimmed: max width 1250 after prior agreement
Grades in italics: not included in the standard

 

Magnetic properties

 
Thickness 0.65 mm
 
Min polarisation (T) in DC at 5000 A/m
Min polarisation (T) in DC at 15,000 A/m
GuaranteedTypicalGuaranteedTypical
250-65-TF 183 1.60 1.72 1.83 1.91
300-65-TF 182 1.55 1.69 1.82 1.88
350-65-TF 181 1.52 1.67 1.81 1.86
400-65-TF 180 1.50 1.64 1.80 1.84
 
Thickness 1.00 mm
 
Min polarisation (T) in DC at 5000 A/m
Min polarisation (T) in DC at 15,000 A/m
GuaranteedTypicalGuaranteedTypical
250-100-TF 183 1.60 1.71 1.83 1.90
300-100-TF 182 1.55 1.69 1.82 1.88
350-100-TF 181 1.52 1.67 1.81 1.86
400-100-TF 180 1.50 1.80
450-100-TF 180 AM FCE
Grades in italics: not included in the standard


Mechanical properties

Guaranteed mechanical properties:

 DirectionRe (MPa)Rm (MPa)A80 (%)
250-65-TF 183T> 250> 325> 16
300-65-TF 182> 300> 375> 15
350-65-TF 181> 350> 425> 13
400-65-TF 180> 400> 450> 10
250-100-TF 183> 250> 325> 16
300-100-TF 182> 300> 375> 15
350-100-TF 181> 350> 425> 13
400-100-TF 180> 400> 450> 10
450-100-TF 180 AM FCE> 450> 500

450-100-TF 180 AM FCE: not included in the standard

 

The following table specifies the typical mechanical properties:

 DirectionRe (MPa)Rm (MPa)A80 (%)Re/RmHV
250-65-TF 183T270 - 320400 - 44030 - 400.68 - 0.73120 - 150
300-65-TF 182320 - 360450 - 4900.70 - 0.75140 - 170
350-65-TF 181400 - 440530 - 57025 - 350.74 - 0.79180 - 210
400-65-TF 180470 - 510590 - 6300.77 - 0.82200 - 230
250-100-TF 183290 - 340420 - 47030 - 400.68 - 0.73130 - 160
300-100-TF 182320 - 360450 - 49028 - 380.70 - 0.75140 - 170
350-100-TF 181400 - 440530 - 57025 - 350.74 - 0.79180 - 210
400-100-TF 180420 - 460540 - 5800.75 - 0.80190 - 220
450-100-TF 180 AM FCE480 - 520580 - 62020 - 300.78 - 0.82200 - 230

450-100-TF 180 AM FCE: not included in the standard




Coating properties

These cold rolled pole sheet grades are available non-insulated or varnished with any of the coatings described in data sheet D10.


 


For commercial information (quotations, deliveries, product availability):

For technical questions about these products: flateurope.technical.assistance@arcelormittal.com


All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.