DIN 17480 X60CrMnMoVNbN21-10: High-Performance Solution Heat-Treated & Precipitation Hardened Valve Steel
X60CrMnMoVNbN21-10 is an austenitic Cr-Mn-Mo-V-Nb-N-alloyed valve steel. The steel shows high corrosion resistance in exhaust condensate and very good resistance to lead compounds at increased temperatures. Application at operating temperatures up to 780 deg. Use: inlet valves, exhaust valves
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 210 GPa | |
Elongation | 20.0 °C | 8 % | |
Hardness, Rockwell C | 20.0 °C | 35 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Reduction of area | 20.0 °C | 10 % | |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Tensile strength | 20.0 °C | 1000 - 1200 MPa | |
500.0 °C | 800 MPa | ||
550.0 °C | 780 MPa | ||
600.0 °C | 750 MPa | ||
650.0 °C | 680 MPa | ||
700.0 °C | 600 MPa | ||
750.0 °C | 500 MPa | ||
800.0 °C | 400 MPa | ||
Yield strength Rp0.2 | 20.0 °C | 800 MPa | |
500.0 °C | 500 MPa | ||
550.0 °C | 480 MPa | ||
600.0 °C | 450 MPa | ||
650.0 °C | 430 MPa | ||
700.0 °C | 400 MPa | ||
750.0 °C | 380 MPa | ||
800.0 °C | 350 MPa | ||
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.61E-5 1/K | |
300.0 °C | 1.72E-5 1/K | ||
500.0 °C | 1.8E-5 1/K | ||
700.0 °C | 1.9E-5 1/K | ||
Max service temperature, long | 0 - 780 °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 | 14.5 W/(m·K) | |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 8.5E-7 Ω·m | Typical for Austenitic Stainless Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.57 - 0.65 % |
Chromium | 20 - 22 % |
Manganese | 9.5 - 11.5 % |
Molybdenum | 0.75 - 1.25 % |
Nickel | 1.5 % |
Niobium | 1 - 1.2 % |
Phosphorus | 0.05 % |
Silicon | 0.25 % |
Sulfur | 0.025 % |
Vanadium | 0.75 - 1 % |
Metal
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