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GX40CrSi17 | 1.4740 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Predecessor Application temperature [°C]
1.4740 (DIN EN 10295 : 2003-01) 1.4740 DIN EN 10295 : 2003-01 Supersedes DIN 17465 : 1993-08 Valid Germany GX40CrSi17 ≤ 950 1)
1) Remark: According to DIN EN 10295 : 2003-01, the highest application temperature in air is 900 °C for the material GX40CrSi7, material number 1.4740 (the former G-X 40 CrSi 17 according to DIN 17465 : 1977-09). The following is valid for the comparable DIN-material: Application mainly furnace parts that are subjected to medium mechanical stress, such as stoking grates, grate links, pipe brackets and pipe sockets, spacer plates, long-range jet nozzles. In the cement industry for guard rings and guard arches, segments etc. In addition for cast case hardening boxes and superheater mountings. Durability: - with an oxidizing combustion atmosphere: 950 °C, - with a reducing combustion atmosphere: 900 °C, - with oxidizing gases containing sulphur: 950 °C, - with reducing gases containing sulphur: 900 °C.

Chemical Composition

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

Semi-finished Product Condition 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)]
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Creep Rupture Behaviour

Temperature [°C] 1% Creep Limit at 10^4 h [MPa]
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Cross Reference

Material Name Country Standard
ZG40Cr17Si2 China GB/T 8492 1)
C54830 China GB/T 8492 1)
GX40CrSi17 Europe EN 10295
GX40CrSi17 International ISO 11973 1)
SCH5 Japan JIS G 5122 1)
GX40CrSi17 Germany DIN 17465
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh RoHS
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