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  • Cold-rolled - Steel for forming

    Cold-rolled steel for cold forming and deep drawing is available in a range of grades.

    Each grade is designed for particular applications – allowing you to pick the best steel for your product.

     

    Cold rolled steel: consistent, reliable products

    Our advanced and ultra high-strength cold-rolled steels DP600, DP800, DP1000 and HQ1500 are lightweight and enable design freedom for complex parts.

    Their high yield and ductility ensure shape accuracy and tolerancing, which enable thickness reduction and maintained in-service performance for difficult-to-form parts.

    Contact us

    Tata Steel

    PO Box 10.000

    1970 CA IJmuiden

    Netherlands

    Helpdesk

    T +31 (0)251 494191

    Overview

    Our forming steel is available in a choice of widths up to 2050mm and thicknesses up to 3.1mm. This provides opportunities for cutting waste and maximising yield.These products are made using one of two process routes:

    • continuous annealing (CA)
    • batch annealing (BA)

     

    Applications

    Automotive components and body panels
    Components for building
    Domestic appliances
    Electrical goods
    Furniture
    Radiators
    Tubes

     

    Relationship with standards

    Cold-rolled steel for forming complies with European standard EN 10130: 2006 and is available in the grades shown below.

    European standard

    National standards

    EN 10130: 2006

    Germany

    Grade

    DIN 1623 part 1

    DC01

    St 12

    DC03

    St 13

    DC04

    St 14

    DC05

    St 15 1

    DC06

    IF 18 2

    1. Not in standard. Tata Steel’s own specification.
    2. Also part of the SEW095 specification.

     

     

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    Properties

    Mechanical properties

    Cold-rolled steel for forming has the following mechanical properties
    (skin-passed) - these are measured transverse to the rolling direction:

    EN 10130: 2006

    Max. yield strength
    Re 1, 2, 6

    Tensile strength Rm

    Min. elongation after fracture A80 3

    Min. r90-value 4, 5

    Min. n90-value 4

    Grade

     N/mm2

    N/mm2 

    %

     

     

    DC01

    280

    270 - 410

    28

    -

    -

    DC03

    240

    270 - 370

    34

    1.3

    -

    DC04

    210

    270 - 350

    38

    1.6

    0.180

    DC05

    180

    270 - 330

    40

    1.9

    0.200

    DC06

    170

    270 - 330

    41

    2.1

    0.220

    1. The values of the yield strength are those of the 0.2% yield strength for products with no definite
       yield point and the lower yield strength ReL for the other products.
    2. For thicknesses > 0.5mm and ≤ 0.7mm, the value for yield strength is increased by 20 N/mm2.
       For thicknesses ≤ 0.5mm, the value is increased by 40 N/mm2.
    3. For thicknesses > 0.5mm and ≤ 0.7mm the minimum elongation after fracture is decreased
       by 2%. For thicknesses ≤ 0.5mm the minimum elongation after fracture is decreased by 4%.
    4. The r- and n- values apply to a thickness of t ≥ 0.5mm.
    5. For a thickness of t > 2mm, the r90 value or r-average value is decreased by 0.2.
    6. For design purposes, a lower yield strength ReL of at least 120 N/mm2 can be assumed for DC06
       and 140 N/mm2 for DC01/3/4/5.

     

    Chemical composition

    Cold-rolled steel for forming supplied by Tata Steel comply to the following cast analysis with maximum values in weight percentages unless otherwise shown:

    All values in weight %.

    EN 10130: 2006

    C

    Mn

    P

    S

    Ti

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

    DC01

    0.12

    0.60

    0.045

    0.045

    -

    DC03

    0.10

    0.45

    0.035

    0.035

    -

    DC04

    0.08

    0.40

    0.030

    0.030

    -

    DC05

    0.06

    0.35

    0.025

    0.025

    -

    DC06

    0.02

    0.25

    0.020

    0.020

    0.30

    Titanium may be replaced by niobium. Carbon and nitrogen will be completely bound.

     

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    Dimensions

    Dimensional capability

    Continuously annealed (CA)

    Dimensions in mm.

    Thickness Max. width      
    From - up to DC01 DC03 DC04 DC05 DC06
    0.37 - 0.45 1390 - - - -
    0.45 - 0.50 1470 - - - -
    0.50 - 0.55 1550 1400 1450 1450 1450
    0.55 - 0.60 1550 1510 1450 1450 1450
    0.60 - 0.65 1710 1600 1600 1600 1600
    0.65 - 0.70 1710 1635 1650 1650 1650
    0.70 - 0.75 1710 1650 1700 1700 1700
    0.75 - 0.78 1820 1815 1700 1700 1700
    0.78 - 0.80 1820 1815 1785 1785 1785
    0.80 - 1.20 1820 1815 1785 1785 1785
    1.20 - 1.60 1820 1815 1785 1785 -
    1.60 - 1.70 1750 1750 1750 - -
    1.70 - 1.80 1650 1650 1650 - -
    1.80 - 1.90 1525 1525 1525 - -
    1.90 - 1.95 1520 1500 1500 - -
    1.95 - 2.00 1500 1500 1500 - -

    Minimum width is 900mm for thicknesses below 0.5mm.
    Minimum width is 825mm for all other thicknesse

     

    Batch annealed (BA).

    Dimensions in mm.

    Thickness Max. width      
    From - up to DC01 DC03 DC04 DC05 DC06
    0.35 - 0.37 1300 1300 1300 1300 -
    0.37 - 0.40 1630 1530 1530 1300 -
    0.40 - 0.50 1690 1680 1680 1760 -
    0.50 - 0.60 1920 1750 1750 1840 1900
    0.60 - 0.70 1920 1790 1790 1880 2010
    0.70 - 0.80 1970 1830 1830 1920 2030
    0.80 - 0.90 2030 1880 1880 1970 2030
    0.90 - 1.00 2030 1920 1920 2020 2030
    1.00 - 1.10 2030 1970 1970 2030 2030
    1.10 - 1.20 2030 2020 2020 2030 2030
    1.20 - 1.30 2030 2030 2030 2030 2030
    1.30 - 1.50 2030 2030 2030 1880 2030
    1.50 - 1.60 2030 2030 2030 1880 1920
    1.60 - 1.70 2030 2030 2030 1730 1800
    1.70 - 1.80 2030 2030 2030 1730 1720
    1.80 - 1.90 2030 2030 2030 1570 1600
    1.90 - 2.00 2030 1960 1960 1570 1550
    2.00 - 2.10 2030 1840 1840 1430 1490
    2.10 - 2.20 2030 1840 1840 1430 1420
    2.20 - 2.40 2030 1700 1700 1310 -
    2.40 - 2.50 1960 1570 1570 1300 -
    2.50 - 2.60 1940 1570 1570 - -
    2.60 - 2.70 1920 1500 1500 - -
    2.70 - 2.80 1850 1500 1500 - -
    2.80 - 2.90 1790 1500 1500 - -
    2.90 - 3.00 1730 1500 1500 - -


    Minimum width is 710mm.
    Other dimensions may be available – please contact us.

     

    Tolerances

    Tolerances comply with standard EN 10131: 2006 (click here).
    Tighter tolerances are available, please contact us for details.

     

    back to top

    Overview

    Overview

    Our forming steel is available in a choice of widths up to 2050mm and thicknesses up to 3.1mm. This provides opportunities for cutting waste and maximising yield.These products are made using one of two process routes:

    • continuous annealing (CA)
    • batch annealing (BA)

     

    Applications

    Automotive components and body panels
    Components for building
    Domestic appliances
    Electrical goods
    Furniture
    Radiators
    Tubes

     

    Relationship with standards

    Cold-rolled steel for forming complies with European standard EN 10130: 2006 and is available in the grades shown below.

    European standard

    National standards

    EN 10130: 2006

    Germany

    Grade

    DIN 1623 part 1

    DC01

    St 12

    DC03

    St 13

    DC04

    St 14

    DC05

    St 15 1

    DC06

    IF 18 2

    1. Not in standard. Tata Steel’s own specification.
    2. Also part of the SEW095 specification.

     

     

    back to top

    Properties

    Properties

    Mechanical properties

    Cold-rolled steel for forming has the following mechanical properties
    (skin-passed) - these are measured transverse to the rolling direction:

    EN 10130: 2006

    Max. yield strength
    Re 1, 2, 6

    Tensile strength Rm

    Min. elongation after fracture A80 3

    Min. r90-value 4, 5

    Min. n90-value 4

    Grade

     N/mm2

    N/mm2 

    %

     

     

    DC01

    280

    270 - 410

    28

    -

    -

    DC03

    240

    270 - 370

    34

    1.3

    -

    DC04

    210

    270 - 350

    38

    1.6

    0.180

    DC05

    180

    270 - 330

    40

    1.9

    0.200

    DC06

    170

    270 - 330

    41

    2.1

    0.220

    1. The values of the yield strength are those of the 0.2% yield strength for products with no definite
       yield point and the lower yield strength ReL for the other products.
    2. For thicknesses > 0.5mm and ≤ 0.7mm, the value for yield strength is increased by 20 N/mm2.
       For thicknesses ≤ 0.5mm, the value is increased by 40 N/mm2.
    3. For thicknesses > 0.5mm and ≤ 0.7mm the minimum elongation after fracture is decreased
       by 2%. For thicknesses ≤ 0.5mm the minimum elongation after fracture is decreased by 4%.
    4. The r- and n- values apply to a thickness of t ≥ 0.5mm.
    5. For a thickness of t > 2mm, the r90 value or r-average value is decreased by 0.2.
    6. For design purposes, a lower yield strength ReL of at least 120 N/mm2 can be assumed for DC06
       and 140 N/mm2 for DC01/3/4/5.

     

    Chemical composition

    Cold-rolled steel for forming supplied by Tata Steel comply to the following cast analysis with maximum values in weight percentages unless otherwise shown:

    All values in weight %.

    EN 10130: 2006

    C

    Mn

    P

    S

    Ti

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

    DC01

    0.12

    0.60

    0.045

    0.045

    -

    DC03

    0.10

    0.45

    0.035

    0.035

    -

    DC04

    0.08

    0.40

    0.030

    0.030

    -

    DC05

    0.06

    0.35

    0.025

    0.025

    -

    DC06

    0.02

    0.25

    0.020

    0.020

    0.30

    Titanium may be replaced by niobium. Carbon and nitrogen will be completely bound.

     

    back to top

    Dimensions

    Dimensions

    Dimensional capability

    Continuously annealed (CA)

    Dimensions in mm.

    Thickness Max. width      
    From - up to DC01 DC03 DC04 DC05 DC06
    0.37 - 0.45 1390 - - - -
    0.45 - 0.50 1470 - - - -
    0.50 - 0.55 1550 1400 1450 1450 1450
    0.55 - 0.60 1550 1510 1450 1450 1450
    0.60 - 0.65 1710 1600 1600 1600 1600
    0.65 - 0.70 1710 1635 1650 1650 1650
    0.70 - 0.75 1710 1650 1700 1700 1700
    0.75 - 0.78 1820 1815 1700 1700 1700
    0.78 - 0.80 1820 1815 1785 1785 1785
    0.80 - 1.20 1820 1815 1785 1785 1785
    1.20 - 1.60 1820 1815 1785 1785 -
    1.60 - 1.70 1750 1750 1750 - -
    1.70 - 1.80 1650 1650 1650 - -
    1.80 - 1.90 1525 1525 1525 - -
    1.90 - 1.95 1520 1500 1500 - -
    1.95 - 2.00 1500 1500 1500 - -

    Minimum width is 900mm for thicknesses below 0.5mm.
    Minimum width is 825mm for all other thicknesse

     

    Batch annealed (BA).

    Dimensions in mm.

    Thickness Max. width      
    From - up to DC01 DC03 DC04 DC05 DC06
    0.35 - 0.37 1300 1300 1300 1300 -
    0.37 - 0.40 1630 1530 1530 1300 -
    0.40 - 0.50 1690 1680 1680 1760 -
    0.50 - 0.60 1920 1750 1750 1840 1900
    0.60 - 0.70 1920 1790 1790 1880 2010
    0.70 - 0.80 1970 1830 1830 1920 2030
    0.80 - 0.90 2030 1880 1880 1970 2030
    0.90 - 1.00 2030 1920 1920 2020 2030
    1.00 - 1.10 2030 1970 1970 2030 2030
    1.10 - 1.20 2030 2020 2020 2030 2030
    1.20 - 1.30 2030 2030 2030 2030 2030
    1.30 - 1.50 2030 2030 2030 1880 2030
    1.50 - 1.60 2030 2030 2030 1880 1920
    1.60 - 1.70 2030 2030 2030 1730 1800
    1.70 - 1.80 2030 2030 2030 1730 1720
    1.80 - 1.90 2030 2030 2030 1570 1600
    1.90 - 2.00 2030 1960 1960 1570 1550
    2.00 - 2.10 2030 1840 1840 1430 1490
    2.10 - 2.20 2030 1840 1840 1430 1420
    2.20 - 2.40 2030 1700 1700 1310 -
    2.40 - 2.50 1960 1570 1570 1300 -
    2.50 - 2.60 1940 1570 1570 - -
    2.60 - 2.70 1920 1500 1500 - -
    2.70 - 2.80 1850 1500 1500 - -
    2.80 - 2.90 1790 1500 1500 - -
    2.90 - 3.00 1730 1500 1500 - -


    Minimum width is 710mm.
    Other dimensions may be available – please contact us.

     

    Tolerances

    Tolerances comply with standard EN 10131: 2006 (click here).
    Tighter tolerances are available, please contact us for details.

     

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