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GX40CrNi27-4 | 1.4340 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Predecessor
1.4340 (SEW 410 : 2017-12) 1.4340 SEW 410 : 2017-12 Supersedes SEW 410 : 1998-07 Valid Germany GX40CrNi27-4 1)
1) Remark: Other than 1.4085 and 1.4086 especially for larger and complex-shaped castings, for which the toughness properties of these materials are not sufficient, for example for large pump casing and impellers for the chemical industry and the mining industry.

Chemical Composition

C [%] Cr [%] Mn [%] Ni [%] P [%] S [%] Si [%]
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Mean Specific Heat Capacity [kJ/(kg*K)] Linear Shrinkage [%]
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Welding and Joining

Welding and Joining - Evaluation Preheating [°C] Interpass Temperature [°C] Added Materials
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Heat Treatment

Heat Treatment Temperature [°C]
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Cross Reference

Material Name Country Standard
4 (IS 4522) India IS 4522 1)
CC-50 USA 1)
A743 Grade CC-50 USA ASTM A743 1)
A743 Grade CC-50 USA ASTM A781 1)
J92615 USA UNS 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh RoHS
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