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GX30CrSi7 | 1.4710 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Predecessor Application temperature [°C]
1.4710 (DIN EN 10295 : 2003-01) 1.4710 DIN EN 10295 : 2003-01 Supersedes DIN 17465 : 1993-08 Valid Germany GX30CrSi6 ≤ 750 1)
1) Remark: According to DIN EN 10295 : 2003-01, the highest application temperature in air is 750 °C for the material GX30CrSi7, material number 1.4710 (the former G-X 30 CrSi 6 according to DIN 17465 : 1977-09). The following is valid for the comparable DIN-material: Application for heat-resistant castings for normal mechanical stress, such as in furnace arch construction for holders, pistons, rails, cross bars, plates and arches. In addition for parts in tempering furnaces, such as hearth nozzle, blast pipes, burner parts, shut-off valves, throttle valves, retorts etc. Durability according to Stahlschlüssel 2001: - with an oxidizing combustion atmosphere (sulphur-free): 850 °C, - with a reducing combustion atmosphere (sulphur-free): 800 °C, - with oxidizing gases containing sulphur (S<2g/Nm³): 800 °C, - with oxidizing gases containing sulphur (S>2g/Nm³): 750 °C, - with reducing gases containing sulphur (S<2g/Nm³): 800 °C, - with reducing gases containing sulphur (S>2g/Nm³): 750 °C. (Stahlschlüssel: Key to Steel: Cross-Reference Book for Steel Standards and Designations)

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
ZG30Cr7Si2 China GB/T 8492 1)
C54804 China GB/T 8492 1)
GX30CrSi7 Europe EN 10295
GX30CrSi7 International ISO 11973 1)
SCH4 Japan JIS G 5122 1)
GX 30 CrSi 6 Germany DIN 17465 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh RoHS
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