EN 10250‑4 Grade X20Cr13 Soft Annealed Steel – High Strength, Corrosion‑Resistant Performance
Make X20Cr13 is comparable to X 20 Cr 13 acc. to DIN 17440 : 1985-07. The material is applicated for construction parts of higher strength and higher mechanical load, such as axles, shafts, pump components, piston rods, valve cones, nozzle needles, ship`s propeller, but also beater bars, surgical instruments. Favorable corrosion resistance to water and steam (turbine blades). The steel is usable for mirror finishing.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.7 - 7.71 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 215 - 222 GPa | |
100.0 °C | 212 - 216 GPa | ||
200.0 °C | 205 - 209 GPa | ||
300.0 °C | 200 - 201 GPa | ||
400.0 °C | 190 - 192 GPa | ||
500.0 °C | 183 GPa | ||
600.0 °C | 174 GPa | ||
Hardness, Brinell | 20.0 °C | 230 [-] | |
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 | 760 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 20.0 °C | 1.02E-5 1/K | |
100.0 °C | 1.05E-5 1/K | ||
200.0 °C | 1.09E-5 - 1.1E-5 1/K | ||
300.0 °C | 1.13E-5 - 1.15E-5 1/K | ||
400.0 °C | 1.16E-5 - 1.2E-5 1/K | ||
500.0 °C | 1.2E-5 1/K | ||
600.0 °C | 1.22E-5 1/K | ||
Melting point | 1370 - 1530 °C | Typical for Martensitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 439 - 460 J/(kg·K) | |
100.0 °C | 474 J/(kg·K) | ||
200.0 °C | 498 J/(kg·K) | ||
300.0 °C | 517 J/(kg·K) | ||
400.0 °C | 538 J/(kg·K) | ||
500.0 °C | 564 J/(kg·K) | ||
600.0 °C | 598 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 24.6 - 30 W/(m·K) | |
100.0 °C | 24.7 W/(m·K) | ||
200.0 °C | 25 W/(m·K) | ||
300.0 °C | 25.2 W/(m·K) | ||
400.0 °C | 25.5 W/(m·K) | ||
500.0 °C | 25.8 W/(m·K) | ||
600.0 °C | 26 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 7.3 mm²/s | |
100.0 °C | 6.4 mm²/s | ||
200.0 °C | 6.1 mm²/s | ||
300.0 °C | 5.8 mm²/s | ||
400.0 °C | 5.4 mm²/s | ||
500.0 °C | 4.8 mm²/s | ||
600.0 °C | 4.1 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 5.87E-7 Ω·m |
100.0 °C | 6.55E-7 Ω·m | |
200.0 °C | 7.38E-7 Ω·m | |
300.0 °C | 8.19E-7 Ω·m | |
400.0 °C | 8.96E-7 Ω·m | |
500.0 °C | 9.7E-7 Ω·m | |
600.0 °C | 1.04E-6 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.16 - 0.25 % |
Chromium | 12 - 14 % |
Manganese | 1.5 % |
Phosphorus | 0.04 % |
Silicon | 1 % |
Sulfur | 0.03 % |
Metal
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