DIN 17465 GX25CrNiSi20-14: High-Performance Austenitic Stainless Steel for Extreme Heat Applications
G-X 25 CrNiSi 20 14, for applications which demand high heat resistance in continuous duty, max. resistance at 1000°C resistance: - in oxidising burning atmosphere: 1000°C - in reductive burning atmosphere: 950°C - in oxidising sulfureous gas: 900°C
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 195 GPa | Typical for Austenitic Stainless Steel |
Elongation | 20.0 °C | 10 % | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Tensile strength | 20.0 °C | 440 MPa | |
Yield strength Rp0.2 | 20.0 °C | 230 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 400.0 °C | 1.75E-5 1/K | |
800.0 °C | 1.85E-5 1/K | ||
1000.0 °C | 1.95E-5 1/K | ||
Max service temperature, long | 0 - 1000 °C | ||
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless 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 | 7.6E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.15 - 0.3 % |
Chromium | 19 - 21 % |
Manganese | 1.5 % |
Nickel | 13 - 15 % |
Phosphorus | 0.04 % |
Silicon | 1 - 2.5 % |
Sulfur | 0.03 % |
Metal
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