DIN 17245 G‑X8CrNi12: Quenched & Tempered Steel for Water & Steam up to 400 °C
G-X 8 CrNi 12 is used for machine parts and fittings in water and steam up to 400 °C. No application in creeping range.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.7 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 216 GPa | |
100.0 °C | 209 GPa | ||
200.0 °C | 200 GPa | ||
300.0 °C | 190 GPa | ||
400.0 °C | 179 GPa | ||
500.0 °C | 167 GPa | ||
600.0 °C | 127 GPa | ||
Elongation | 20.0 °C | 18 % | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Martensitic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Martensitic Stainless Steel |
Tensile strength | 20.0 °C | 540 - 690 MPa | |
Yield strength | 20.0 °C | 355 MPa | |
Yield strength Rp0.2 | 200.0 °C | 275 MPa | |
300.0 °C | 265 MPa | ||
350.0 °C | 260 MPa | ||
400.0 °C | 255 MPa | ||
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.05E-5 1/K | |
200.0 °C | 1.1E-5 1/K | ||
300.0 °C | 1.15E-5 1/K | ||
400.0 °C | 1.19E-5 1/K | ||
500.0 °C | 1.22E-5 1/K | ||
600.0 °C | 1.25E-5 1/K | ||
Max service temperature, long | 0 - 400 °C | ||
Melting point | 1370 - 1530 °C | Typical for Martensitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 460 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 24 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 4.5E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.06 - 0.1 % |
Chromium | 11.5 - 12.5 % |
Manganese | 0.5 - 0.8 % |
Molybdenum | 0.5 % |
Nickel | 0.8 - 1.5 % |
Phosphorus | 0.03 % |
Silicon | 0.1 - 0.4 % |
Sulfur | 0.02 % |
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