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  • Hot-rolled - Tenform®CMn high-strength steel

    Tenform® carbon-manganese steel is a high-strength low-alloy formable steel with enhanced fatigue performance. It enables stronger, lighter automotive components.

    Using Tenform® increases finished component strength, reduces steel thickness or both. Down-gauging can increase output per tonne of steel.

    Heat-treatable steel

    Tata Steel offers a choice of hot-rolled heat-treatable steel. Its chemical composition and the production processes we employ ensure robust, consistent products. 

    Our case-hardening steel is suitable for wear-resistant components that must bear extreme fatigue stress. Our high-carbon grades supplied in the ‘as-rolled’ untreated condition can be processed to meet specific requirements.

    Contact us

    Tata Steel

    PO Box 10.000

    1970 CA IJmuiden

    Netherlands

    Helpdesk

    T +31 (0)251 494191

    Overview

     

    Applications

    Automotive components

     

     

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    Properties

     

    Mechanical properties

    The values shown for strength and elongation in the table below are for test pieces taken in the rolling direction; those for the bend test are for test pieces taken transverse to the rolling direction.

     

    Grade

    Min. yield strength 1
    ReL

    Min. tensile strength
    Rm

    Min elongation
    after fracture A
    (L0 = 80mm)

    Bend test mandrel diameter min.

     

    N/mm2

    N/mm2

    %

     

    CMN250

    250

    360

    28

    0t

     1. Lower yield strength or 0.2% proof stress applies.

     

    Chemical composition

    Tenform® carbon-manganese grades meet the requirements of the cast analysis shown below.

    Grade

    C

    Mn

    P

    S

    Si

     

    Max.

    Max.

    Max.

    Max.

    Max.

    CMN250

    0.12

    0.90

    0.035

    0.010

    0.03

    All values in weight%.

     

     

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    Dimensions

     

    Dimensions in mm.

    Thickness

    Max. width

    From - up to

    CMN250

    (non-pickled)

    CMN250

    (pickled)

    1.40 - 1.50

    1150

    1150

    1.50 - 1.60

    1250

    1150

    1.60 - 1.90

    1425

    1425

    1.90 - 2.10

    1525

    1525

    2.10 - 2.50

    1550

    1530

    2.50 - 3.00

    1600

    1530

    3.00 - 5.00

    1830

    1530

    5.00 - 16.50

    1830

    -

    The minimum width is 700mm (non-pickled) or 735mm (pickled).
    Tenform® carbon-manganese products are produced in the UK.

     

    Tolerances

    Tolerances for wide strip and slit wide strip comply with standard EN 10051: 2010 (click here).

    Tighter tolerances are available, please contact us.

     

     

    back to top

     

    Overview

    Overview

     

    Applications

    Automotive components

     

     

    back to top

    Properties

    Properties

     

    Mechanical properties

    The values shown for strength and elongation in the table below are for test pieces taken in the rolling direction; those for the bend test are for test pieces taken transverse to the rolling direction.

     

    Grade

    Min. yield strength 1
    ReL

    Min. tensile strength
    Rm

    Min elongation
    after fracture A
    (L0 = 80mm)

    Bend test mandrel diameter min.

     

    N/mm2

    N/mm2

    %

     

    CMN250

    250

    360

    28

    0t

     1. Lower yield strength or 0.2% proof stress applies.

     

    Chemical composition

    Tenform® carbon-manganese grades meet the requirements of the cast analysis shown below.

    Grade

    C

    Mn

    P

    S

    Si

     

    Max.

    Max.

    Max.

    Max.

    Max.

    CMN250

    0.12

    0.90

    0.035

    0.010

    0.03

    All values in weight%.

     

     

    back to top

     

    Dimensions

    Dimensions

     

    Dimensions in mm.

    Thickness

    Max. width

    From - up to

    CMN250

    (non-pickled)

    CMN250

    (pickled)

    1.40 - 1.50

    1150

    1150

    1.50 - 1.60

    1250

    1150

    1.60 - 1.90

    1425

    1425

    1.90 - 2.10

    1525

    1525

    2.10 - 2.50

    1550

    1530

    2.50 - 3.00

    1600

    1530

    3.00 - 5.00

    1830

    1530

    5.00 - 16.50

    1830

    -

    The minimum width is 700mm (non-pickled) or 735mm (pickled).
    Tenform® carbon-manganese products are produced in the UK.

     

    Tolerances

    Tolerances for wide strip and slit wide strip comply with standard EN 10051: 2010 (click here).

    Tighter tolerances are available, please contact us.

     

     

    back to top