DIN 17445 G‑X22CrNi17 – Quenched & Tempered Grade for Blade Wheels & Bearing Rings
G-X 22 CrNi 17, for blade wheels, rings for rudder bearings, sealing rings, cocks, valve guidances
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.7 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 220 GPa | Typical for Ferritic Stainless Steel |
Elongation | 20.0 °C | 4 % | |
Hardness, Brinell | 20.0 °C | 230 - 300 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Ferritic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Ferritic Stainless Steel |
Tensile strength | 20.0 °C | 780 - 980 MPa | |
Yield strength Rp0.2 | 20.0 °C | 590 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1E-5 1/K | |
200.0 °C | 1.05E-5 1/K | ||
300.0 °C | 1.1E-5 1/K | ||
400.0 °C | 1.1E-5 1/K | ||
500.0 °C | 1.1E-5 1/K | ||
Melting point | 1425 - 1530 °C | Typical for Ferritic Stainless Steel | |
Specific heat capacity | 20.0 °C | 460 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 25 W/(m·K) | |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 6E-7 - 7.5E-7 Ω·m | Typical for Ferritic Stainless Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.2 - 0.27 % |
Chromium | 16 - 18 % |
Manganese | 1 % |
Nickel | 1 - 2 % |
Phosphorus | 0.05 % |
Silicon | 1 % |
Sulfur | 0.03 % |
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