EN 10222-2 Grade X10CrMoVNb9-1: Normalized & Tempered High-Temperature Stainless Steel for Pressure Vessels
The high-temperature material X10CrMoVNb9-1, material number 1.4903 is used for pressure vessel construction.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.7 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 218 GPa | |
100.0 °C | 213 GPa | ||
200.0 °C | 206 GPa | ||
300.0 °C | 198 GPa | ||
400.0 °C | 190 GPa | ||
500.0 °C | 180 GPa | ||
600.0 °C | 167 GPa | ||
Elongation | 20.0 °C | 17 - 19 % | |
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 | 630 - 830 MPa | |
Yield strength | 20.0 °C | 450 MPa | |
Yield strength Rp0.2 | 20.0 °C | 435 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.09E-5 1/K | |
200.0 °C | 1.13E-5 1/K | ||
300.0 °C | 1.17E-5 1/K | ||
400.0 °C | 1.2E-5 1/K | ||
500.0 °C | 1.23E-5 1/K | ||
600.0 °C | 1.26E-5 1/K | ||
Max service temperature, long | 550 - 600 °C | ||
Melting point | 1370 - 1530 °C | Typical for Martensitic Stainless Steel | |
Specific heat capacity | 23.0 °C | 460 J/(kg·K) | Typical for Martensitic Stainless Steel |
Thermal conductivity | 20.0 °C | 26 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 5E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.04 % |
Carbon | 0.08 - 0.12 % |
Chromium | 8 - 9.5 % |
Manganese | 0.3 - 0.6 % |
Molybdenum | 0.85 - 1.05 % |
Nickel | 0.3 - 0.4 % |
Niobium | 0.06 - 0.1 % |
Nitrogen | 0.03 - 0.07 % |
Phosphorus | 0.02 - 0.03 % |
Silicon | 0.5 % |
Sulfur | 0.005 - 0.015 % |
Vanadium | 0.18 - 0.25 % |
Metal
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