Hot-rolled

Steel for forming

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. DD13WR is particularly suitable for use in wheel rims because of its low aluminium content and controlled Mn:Si ratio. The low carbon content gives DD13WR excellent welding performance.
 

Abrasion resistant wear steel
Product specification
Steel for forming is currently available in the following grades

EN-Engineering-Product-Hot-Rolled-Forming-DD11 TSE

DD11
Specification details for DD11

EN-Engineering-Product-Hot-Rolled-Forming-All grades OverviewTSE

Overview

Applications

  • Automotive components
  • Domestic appliance components
  • Furniture
  • Switch gear panels
  • Wheel rims
  • Tubes and sections
     

Relationship with standards

Tata Steel offers hot-rolled steel for forming in grades that comply with EN 10111: 2008 and in special Tata Steel grades 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 consult us about the properties of steel in other thicknesses.
 

European standard

EN 10111: 2008

DD11 2

DD12

DD13

DD13WR 1

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.
 

Supply - product conditions

Hot-rolled steel can be supplied with these product conditions and finishes and with this surface treatment:

Side/surface condition

non-pickled

pickled

pickled and oiled

Mill edges

Yes

Yes

Yes

Trimmed edges

-

Yes

Yes

Trimmed edges available in thicknesses up to 8.0 mm. The steel grades shown on the following pages belong to the standard range offered by Tata Steel. Please contact us regarding other specifications we may have that meet your needs.
 

Surface aspects

Description

Availability

Surface finish

Coils are available in non-pickled and pickled finish

Oiling

Pickled finish is available with rolling or preservative oil applied

 

Oil weight normally 0.5-2.5 g/m2

Alternative oiling ranges are available – please contact us for details.

EN-EngineeringAutomotive-Product-Hot-rolled-All Grades Surface aspects Supply Conditions TSE

Supply Conditions

Supply - product conditions

Hot-rolled steel can be supplied with these product conditions and finishes and with this surface treatment:

Side/surface condition non-pickled pickled pickled and oiled
Mill edges Yes Yes Yes
Trimmed edges - Yes Yes
Trimmed edges available in thicknesses up to 8.0 mm.
Please contact us regarding other specifications we may have that meet your needs.
 

Surface aspects

Description Availability
Surface finish Coils are available in non-pickled and pickled finish for most grades. 
For grade specific availability, please refer to the dimensional tables.
Oiling Pickled finish is available with rolling
or preservative oil applied. 
Oil weight normally 0.5-2.5 g/m2
Alternative oiling ranges are available.
Please contact us for details.
 

Certification

Test certificates 2.2/3.1 are available according to EN 10204.         

EN-EngineeringAutomotive-Product-Hot-Rolled-Forming-DD11-Properties TSE

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:

EN 10111: 2008 Grade DD11
Yield strength ReL  (N/mm2) 1.5 ≤ t < 2 170 - 360
2 ≤ t < 11 170 - 340
Max. tensile strength Rm  (N/mm2)   440
Elongation (%) 1.5 ≤ t < 2 23
2 ≤ t < 3 24
3 ≤ t < 11 28
Min. bend test diameter   1t
Values are for test pieces taken transverse to the rolling direction:
t - material thickness in mm
Lower yield strength or 0.2% proof stress applies.
Test piece length L0 = 80mm for thicknesses <3mm and L0 = 5.65√S0 for thicknesses ≥3mm
 

Chemical composition

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

EN 10111: 2008 Grade DD11
C Max. 0.12
Mn Max. 0.6
P Max. 0.045
S Max. 0.045
Not in EN 10111: 2008. Tata Steel’s own specification.
All values are in weight%.