DIN 17465 GX40NiCrSi38-18 Cast Steel – High‑Temperature Resistance & Mechanical Strength
G-X 40 NiCrSi 38 18, for highest mechanical loaded parts, like grates (abrupt variation in temperature). The high nickel content is in this case the important fact for heat resistant and reduction the crack initiation danger in case of heat changing loadings resistance: - in oxidising burning atmosphere: 1100°C - in reductive burning atmosphere: 1070°C - in oxidising sulfureous gas: 1070°C - in reductive sulfureous gas: 1000°C
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 200 - 215 GPa | Typical for Nickel Steel |
Elongation | 20.0 °C | 5 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Nickel Steel |
Shear modulus | 23.0 °C | 76 GPa | Typical for Nickel Steel |
Tensile strength | 20.0 °C | 400 MPa | |
Yield strength Rp0.2 | 20.0 °C | 230 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 400.0 °C | 1.6E-5 1/K | |
800.0 °C | 1.7E-5 1/K | ||
1000.0 °C | 1.85E-5 1/K | ||
Max service temperature, long | 0 - 1100 °C | ||
Melting point | 1316 - 1595 °C | Typical for Nickel Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 14.6 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 9.8E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.3 - 0.5 % |
Chromium | 17 - 19 % |
Manganese | 0.5 - 1.5 % |
Nickel | 36 - 39 % |
Phosphorus | 0.05 % |
Silicon | 1 - 2.5 % |
Sulfur | 0.03 % |
Metal
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