EN 10139 Grade RRSt 3 cold rolled, skin passed

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The soft non-alloy steel RRSt 3 is suited for cold forming and is offered in different conditions (K to K60) with different strength and depth indications. The steel is applicated in the plant and tool engineering. Free from stretcher lines for 4 weeks is garuanteed in the LG and K32 condition. No stretcher lines occur in the conditions K40 to K60. The steel is weldable, in the conditions K32 to K60 the strength can be decreased post welding.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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20.0 °C

7.8 - 7.9 g/cm³

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Typical for Low Carbon Steel



Elastic modulus

20.0 °C

200 - 215 GPa

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Typical for Low Carbon Steel


20.0 °C

37 %

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Elongation A80

20.0 °C

34 %

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Poisson's ratio

20.0 °C

0.29 [-]

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Typical for Low Carbon Steel

Tensile strength

20.0 °C

270 - 370 MPa

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Yield strength

20.0 °C

240 MPa

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Coefficient of thermal expansion

20.0 °C

1.32E-5 - 1.38E-5 1/K

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Typical for Low Carbon Steel

Melting point

1480 - 1526 °C

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Typical for Low Carbon Steel



Curie temperature

770 °C

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Typical for Low Carbon Steel

Chemical properties



0.1 %

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