DIN 17182 Grade GS-20Mn5 normalized or normalized formed (+N)

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In comparison to the unalloyed cast steel grades according to DIN 1681, the materials of this group show distinctly higher values of the notch impact energy. As a result of their low carbon content (0.23 per cent maximum), they are well suitable for welding. By liquid quenching and tempering, the connection of this material to the micro-alloyed fine-grain structural steels, which this cast steel grade is to be used together with in welded composite constructions, can be achieved for wall thicknesses of up to 40 mm.

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This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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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23.0 °C

8.8 g/cm³

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Typical for Nickel Steel



Elastic modulus

23.0 °C

200 - 215 GPa

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Typical for Nickel Steel


20.0 °C

20 - 22 %

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Poisson's ratio

23.0 °C

0.29 [-]

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Typical for Nickel Steel

Shear modulus

23.0 °C

76 GPa

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Typical for Nickel Steel

Tensile strength

20.0 °C

450 - 650 MPa

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Yield strength

20.0 °C

240 - 300 MPa

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Max service temperature, long

0 - 300 °C

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Melting point

1316 - 1595 °C

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Typical for Nickel Steel

Specific heat capacity

23.0 °C

456 J/(kg·K)

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Typical for Nickel Steel

Thermal conductivity

23.0 °C

10 - 50 W/(m·K)

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Typical for Nickel Steel

Chemical properties



0.17 - 0.23 %

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0.3 %

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1 - 1.5 %

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0.15 %

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0.4 %

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0.02 %

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0.6 %

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0.015 %

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