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  • Automotive - Hot-rolled - Steel for forming

    Hot Rolled Strip Steel

    Hot-rolled steel for cold forming is used for bending and deep drawing.

    Tata Steel’s forming grades offer consistency for reliable processing and low carbon content for excellent welding performance. The optimised chemistry of Tata Steel grade DD14+ offers enhanced formability for complex components.

    • Hot rolled steel for enhanced component shapes

      Tata Steel offers a range of hot-rolled grades suitable for relatively complex shaped applications needing high levels of formability.

    • Hot-rolled HSS for formability and strength

      Our high-strength, low-alloy grades offer formability and strength for chassis frames, suspension control arms, wheel rims.

      The range includes Ympress® and Tenform® HSLA – with grades that exceed the Euronorm, resulting in stronger and lighter products with increased yield and simplified processing.

    Contact us

    Tata Steel

    Automotive

    PO Box 10.000, 7H-04

    1970 CA IJmuiden

    The Netherlands

    T +31 (0) 251 495748

    Overview

     

    Applications

    • automotive components

     

    Relationship with standards

    Tata Steel offers hot-rolled steel for forming in grades that comply with EN 10111:2008 and in a special Tata Steel grade as shown in the table below. All grades are available in qualities suitable for galvanising.

    As the EN standard applies only to steel ≤ 11mm thick, please contact us about the properties of steel in other thicknesses.

    Tata Steel VDA European standard Germany
    Grade Grade EN 10111: 2008 DIN 1614 part 2
    DD11 - DD11 2 StW22
    DD12 - DD12 RRStW23
    DD13 - DD13 StW24
    DD14 HR2 DD14 -
    DD14+ 1 - - -

    1. Not in EN 10111: 2008 . Tata Steel’s own specification.
    2. DD11 products should be used within one month of their availability.

     

     

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    Properties


    Mechanical properties

    The values shown for the mechanical properties in the table below are for test pieces taken transverse to the rolling direction:

    Tata SteelYield strength Max. tensile strength Min. elongation after fractureBend test radius 
    GradeReL 1 Rm A%min.
      N/mm²  N/mm²L0 = 80mm L0 = 5.65√S0 
     1.5 ≤ t < 22 ≤ t < 11 1.5 ≤ t < 22 ≤ t < 33 ≤ t < 11 
    DD11170 - 360170 - 3404402324281t
    DD12 170 - 340 170 - 320 420 25 26 30 0t
    DD13 170 - 330 170 - 310 400 28 29 33 0t
    DD14 170 - 310 170 - 290 380 31 32 36 0t
    DD14+ 170 - 250   340 36 36 39 0t

    1. Lower yield strength or 0.2% proof stress applies.
    t - material thickness in mm

     

    Chemical composition

    Hot-rolled steel for forming meets the requirements of the cast analysis in the standard as shown in the table below:

     

    Tata Steel

    C

    Mn

    P

    S

    Grade

    Max.

    Max.

    Max.

    Max.

    DD11

    0.120

    0.60

    0.045

    0.045

    DD12

    0.100

    0.45

    0.035

    0.035

    DD13

    0.080

    0.40

    0.030

    0.030

    DD14

    0.080

    0.35

    0.025

    0.025

    DD14+

    0.055

    0.25

    0.020

    0.020

    All values are in weight%.

     

     

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    Dimensions

     

    Dimensional capability – pickled.

    Dimensions in mm.

    Thickness Max. width        
    From - up to DD11 DD12 DD13 DD13WR DD14 DD14+
    1.50 - 1.60 1330 1330 1330 - 1330 1250
    1.60 - 1.70 1405 1405 1405 - 1405 1275
    1.70 - 1.80 1480 1480 1480 - 1480 1315
    1.80 - 1.90 1555 1555 1555 1475 1555 1511
    1.90 - 2.00 1630 1630 1630 1511 1630 1511
    2.00 - 2.20 1705 1705 1705 1530 1705 1530
    2.20 - 2.40 1820 1820 1820 1530 1820 1530
    2.40 - 2.50 1925 1925 1925 1530 1925 1530
    2.50 - 2.60 1970 1970 1970 1530 1970 1530
    2.60 - 2.70 2030 2030 2030 1530 2030 1530
    2.70 - 4.76 2070 2070 2070 1530 2070 1530
    4.76 - 4.90 2040 2040 2040 1530 2040 1530
    4.90 - 5.00 2000 2000 2000 1530 2000 1530
    5.00 - 5.10 1960 1960 1960 - 1960 -
    5.10 - 5.20 1925 1925 1925 - 1925 -
    5.20 - 5.30 1885 1885 1885 - 1885 -
    5.30 - 5.40 1850 1850 1850 - 1850 -
    5.40 - 5.50 1820 1820 1820 - 1820 -
    5.50 - 5.60 1785 1785 1785 - 1785 -
    5.60 - 5.70 1755 1755 1755 - 1755 -
    5.70 - 5.80 1725 1725 1725 - 1725 -
    5.80 - 5.90 1695 1695 1695 - 1695 -
    5.90 - 6.35 1670 1670 1670 - 1670 -



    The minimum width is 900 mm. Widths smaller than 900 mm are available - please contact us.
    Non-pickled (dry) condition is also available.
    Please contact us with your specific requirements

     

    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

     

    Relationship with standards

    Tata Steel offers hot-rolled steel for forming in grades that comply with EN 10111:2008 and in a special Tata Steel grade as shown in the table below. All grades are available in qualities suitable for galvanising.

    As the EN standard applies only to steel ≤ 11mm thick, please contact us about the properties of steel in other thicknesses.

    Tata Steel VDA European standard Germany
    Grade Grade EN 10111: 2008 DIN 1614 part 2
    DD11 - DD11 2 StW22
    DD12 - DD12 RRStW23
    DD13 - DD13 StW24
    DD14 HR2 DD14 -
    DD14+ 1 - - -

    1. Not in EN 10111: 2008 . Tata Steel’s own specification.
    2. DD11 products should be used within one month of their availability.

     

     

    back to top

    Properties

    Properties


    Mechanical properties

    The values shown for the mechanical properties in the table below are for test pieces taken transverse to the rolling direction:

    Tata SteelYield strength Max. tensile strength Min. elongation after fractureBend test radius 
    GradeReL 1 Rm A%min.
      N/mm²  N/mm²L0 = 80mm L0 = 5.65√S0 
     1.5 ≤ t < 22 ≤ t < 11 1.5 ≤ t < 22 ≤ t < 33 ≤ t < 11 
    DD11170 - 360170 - 3404402324281t
    DD12 170 - 340 170 - 320 420 25 26 30 0t
    DD13 170 - 330 170 - 310 400 28 29 33 0t
    DD14 170 - 310 170 - 290 380 31 32 36 0t
    DD14+ 170 - 250   340 36 36 39 0t

    1. Lower yield strength or 0.2% proof stress applies.
    t - material thickness in mm

     

    Chemical composition

    Hot-rolled steel for forming meets the requirements of the cast analysis in the standard as shown in the table below:

     

    Tata Steel

    C

    Mn

    P

    S

    Grade

    Max.

    Max.

    Max.

    Max.

    DD11

    0.120

    0.60

    0.045

    0.045

    DD12

    0.100

    0.45

    0.035

    0.035

    DD13

    0.080

    0.40

    0.030

    0.030

    DD14

    0.080

    0.35

    0.025

    0.025

    DD14+

    0.055

    0.25

    0.020

    0.020

    All values are in weight%.

     

     

    back to top

    Dimensions

    Dimensions

     

    Dimensional capability – pickled.

    Dimensions in mm.

    Thickness Max. width        
    From - up to DD11 DD12 DD13 DD13WR DD14 DD14+
    1.50 - 1.60 1330 1330 1330 - 1330 1250
    1.60 - 1.70 1405 1405 1405 - 1405 1275
    1.70 - 1.80 1480 1480 1480 - 1480 1315
    1.80 - 1.90 1555 1555 1555 1475 1555 1511
    1.90 - 2.00 1630 1630 1630 1511 1630 1511
    2.00 - 2.20 1705 1705 1705 1530 1705 1530
    2.20 - 2.40 1820 1820 1820 1530 1820 1530
    2.40 - 2.50 1925 1925 1925 1530 1925 1530
    2.50 - 2.60 1970 1970 1970 1530 1970 1530
    2.60 - 2.70 2030 2030 2030 1530 2030 1530
    2.70 - 4.76 2070 2070 2070 1530 2070 1530
    4.76 - 4.90 2040 2040 2040 1530 2040 1530
    4.90 - 5.00 2000 2000 2000 1530 2000 1530
    5.00 - 5.10 1960 1960 1960 - 1960 -
    5.10 - 5.20 1925 1925 1925 - 1925 -
    5.20 - 5.30 1885 1885 1885 - 1885 -
    5.30 - 5.40 1850 1850 1850 - 1850 -
    5.40 - 5.50 1820 1820 1820 - 1820 -
    5.50 - 5.60 1785 1785 1785 - 1785 -
    5.60 - 5.70 1755 1755 1755 - 1755 -
    5.70 - 5.80 1725 1725 1725 - 1725 -
    5.80 - 5.90 1695 1695 1695 - 1695 -
    5.90 - 6.35 1670 1670 1670 - 1670 -



    The minimum width is 900 mm. Widths smaller than 900 mm are available - please contact us.
    Non-pickled (dry) condition is also available.
    Please contact us with your specific requirements

     

    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