DIN 17245 GS‑17CrMo5‑5 Quenched & Tempered Steel – Ideal for Thick‑Walled Cast Parts
GS-17 CrMo 5 5 is used for thick-walled cast pieces at high temperatures and pressures, e.g. for housings, armatures and valve boxes.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 211 GPa | |
100.0 °C | 204 GPa | ||
200.0 °C | 196 GPa | ||
300.0 °C | 186 GPa | ||
400.0 °C | 177 GPa | ||
500.0 °C | 164 GPa | ||
600.0 °C | 127 GPa | ||
Elongation | 20.0 °C | 20 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Chromium Molybdenum Steel |
Tensile strength | 20.0 °C | 490 - 640 MPa | |
Yield strength | 20.0 °C | 315 MPa | |
Yield strength Rp0.2 | 200.0 °C | 255 MPa | |
300.0 °C | 230 MPa | ||
350.0 °C | 215 MPa | ||
400.0 °C | 205 MPa | ||
450.0 °C | 190 MPa | ||
500.0 °C | 180 MPa | ||
550.0 °C | 160 MPa | ||
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.22E-5 1/K | |
200.0 °C | 1.29E-5 1/K | ||
300.0 °C | 1.34E-5 1/K | ||
400.0 °C | 1.39E-5 1/K | ||
500.0 °C | 1.43E-5 1/K | ||
600.0 °C | 1.46E-5 1/K | ||
Max service temperature, long | 300 - 610 °C | ||
Melting point | 1382 - 1529 °C | Typical for Chromium Molybdenum Steel | |
Specific heat capacity | 20.0 °C | 460 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 50 W/(m·K) | |
300.0 °C | 46 W/(m·K) | ||
400.0 °C | 42 W/(m·K) | ||
500.0 °C | 38 W/(m·K) | ||
600.0 °C | 34 W/(m·K) | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.6E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.15 - 0.2 % |
Chromium | 1 - 1.5 % |
Manganese | 0.5 - 0.8 % |
Molybdenum | 0.45 - 0.55 % |
Phosphorus | 0.02 % |
Silicon | 0.3 - 0.6 % |
Sulfur | 0.015 % |
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