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Hot-rolled steel for cold forming is used for bending and deep drawing purposes. These forming grades have good pickling and welding properties. |
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Applications |
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Hot-rolled steel for cold forming is suitable for parts for which a limited deep drawability is sufficient, and for which there are no extreme surface requirements, such as:
- car components:
pulley
bearing cage
seat
bumper
switch box
engine housing
oil pan
- tubes and sections
- parts for domestic appliances
- industrial furniture: switch gear panels
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Relationships with Standards |
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Hot-rolled steel for forming complies with the following standards: |
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European standard
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National standards
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EN 10111, 2008
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UK
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Germany
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Grade
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BS 1449 part 1
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DIN 1614 part 2
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DD14
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-
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-
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DD13
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HR1
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StW24
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DD12
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HR2
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RRStW23
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DD11
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HR3
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StW22
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Mechanical Properties |
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Hot-rolled steel for forming has the following mechanical properties - these are measured transverse to the rolling direction: |
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EN 10111, 2008
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Min.-Max. yield strength ReL
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Max. tensile strength Rm
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N/mm²
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N/mm²
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N/mm²
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Grade
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1.5 ≤ t < 2
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2 ≤ t < 11
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DD14
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170-310
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170-290
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380
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DD13
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170-330
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170-310
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400
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DD12
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170-340
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170-320
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420
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DD11
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170-360
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170-340
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440
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EN 10111, 2008
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Minimum elongation after fracture
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A (%)
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L0 = 80 mm
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L0 = 5.65√S0
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Grade
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1.5 ≤ t < 2
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2 ≤ t < 3
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3 ≤ t < 11
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DD14
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31
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32
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36
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DD13
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28
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29
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33
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DD12
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25
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26
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30
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DD11
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23
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24
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28
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As a rule the steel is not skin passed.
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Chemical Composition |
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Tata Steel Strip products IJmuiden will satisfy the following heat analysis with maximum values in weight percentages: |
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EN 10111, 2008
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C
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Mn
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P
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S
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Grade
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Max.
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Max.
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Max.
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Max.
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DD14
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0.08
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0.35
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0.025
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0.025
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DD13
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0.08
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0.40
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0.030
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0.030
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DD12
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0.10
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0.45
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0.035
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0.035
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DD11
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0.12
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0.60
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0.045
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0.045
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Dimensions |
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Steel for forming is available in the following dimensions in mm: |
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EN 10111, 2008
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Thickness
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Width
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Product Condition
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from-up to
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Min.
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Max.
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Non-pickled
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1.47-1.50
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700
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1300
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1.50-1.60
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700
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1330
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1.60-1.70
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700
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1405
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1.70-1.80
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700
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1480
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1.80-1.90
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700
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1555
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1.90-2.00
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700
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1630
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2.00-2.20
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700
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1705
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2.20-2.40
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700
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1820
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2.40-2.60
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700
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1925
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2.60-2.70
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700
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2030
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2.70-11.0
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700
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2070
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Pickled
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1.50-1.60
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750
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1330
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1.60-1.70
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750
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1405
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1.70-1.80
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750
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1480
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1.80-1.90
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750
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1555
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1.90-2.00
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750
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1630
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2.00-2.20
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750
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1705
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2.20-2.40
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750
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1820
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2.40-2.60
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750
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1925
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2.60-2.70
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750
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2030
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2.70-4.76
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750
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2070
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4.76-4.90
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750
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2040
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4.90-5.00
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750
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2000
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5.00-5.10
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750
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1960
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5.10-5.20
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750
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1925
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5.20-5.30
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750
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1885
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5.30-5.40
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750
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1850
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5.40-5.50
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750
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1820
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5.50-5.60
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750
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1785
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5.60-5.70
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750
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1755
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5.70-5.80
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750
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1725
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5.80-5.90
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750
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1695
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5.90-6.35
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750
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1670
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Other dimensions available after consultation. |
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