EN 10312 Grade X2CrNiMo17-12-2 – High‑Performance Heat‑Treated and Quenched Stainless Steel
The material X2CrNiMo17-12-2 is a modification of steel 1.4401 with high resistance to non oxidizing acids and chloride containing media. This steel is suitable for mirror finishing and very good cold formable. Its corrosion properties are still improved owing to the lowered C-content. The material is resistant to intercrystalline corrosion also in sensitized condition. Application in apparatus engineering of the chemical industry as well as in cellulose, textile and pharmaceutical industry and in sewage plants. The welding method for the tube manufacturing is up to the producer.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.96 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | -100.0 °C | 206 GPa | |
20.0 °C | 196 GPa | ||
100.0 °C | 190 GPa | ||
200.0 °C | 182 GPa | ||
300.0 °C | 174 GPa | ||
400.0 °C | 166 GPa | ||
500.0 °C | 158 GPa | ||
600.0 °C | 150 GPa | ||
700.0 °C | 142 GPa | ||
800.0 °C | 134 GPa | ||
900.0 °C | 127 GPa | ||
1000.0 °C | 120 GPa | ||
Elongation | 20.0 °C | 40 % | |
Elongation, transverse | 20.0 °C | 35 % | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Tensile strength | 20.0 °C | 490 - 690 MPa | |
Tensile strength, transverse | 20.0 °C | 490 - 690 MPa | |
Yield strength | 20.0 °C | 190 MPa | |
Yield strength Rp0.2 | 50.0 °C | 182 MPa | |
100.0 °C | 166 MPa | ||
150.0 °C | 152 MPa | ||
200.0 °C | 137 MPa | ||
250.0 °C | 127 MPa | ||
300.0 °C | 118 MPa | ||
350.0 °C | 113 MPa | ||
400.0 °C | 108 MPa | ||
450.0 °C | 103 MPa | ||
500.0 °C | 100 MPa | ||
550.0 °C | 98 MPa | ||
Yield strength Rp1.0 | 20.0 °C | 225 MPa | |
50.0 °C | 217 MPa | ||
100.0 °C | 199 MPa | ||
150.0 °C | 181 MPa | ||
200.0 °C | 167 MPa | ||
250.0 °C | 157 MPa | ||
300.0 °C | 145 MPa | ||
350.0 °C | 139 MPa | ||
400.0 °C | 135 MPa | ||
450.0 °C | 130 MPa | ||
500.0 °C | 128 MPa | ||
550.0 °C | 127 MPa | ||
Yield strength Rp1.0, transverse | 20.0 °C | 225 MPa | |
Yield strength, transverse | 20.0 °C | 190 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1.49E-5 1/K | |
20.0 °C | 1.61E-5 1/K | ||
100.0 °C | 1.67E-5 1/K | ||
200.0 °C | 1.72E-5 1/K | ||
300.0 °C | 1.77E-5 1/K | ||
400.0 °C | 1.81E-5 1/K | ||
500.0 °C | 1.84E-5 1/K | ||
600.0 °C | 1.88E-5 1/K | ||
700.0 °C | 1.91E-5 1/K | ||
800.0 °C | 1.94E-5 1/K | ||
900.0 °C | 1.97E-5 1/K | ||
1000.0 °C | 2E-5 1/K | ||
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | -100.0 °C | 440 J/(kg·K) | |
20.0 °C | 472 J/(kg·K) | ||
100.0 °C | 487 J/(kg·K) | ||
200.0 °C | 503 J/(kg·K) | ||
300.0 °C | 512 J/(kg·K) | ||
400.0 °C | 520 J/(kg·K) | ||
500.0 °C | 530 J/(kg·K) | ||
600.0 °C | 541 J/(kg·K) | ||
700.0 °C | 551 J/(kg·K) | ||
800.0 °C | 559 J/(kg·K) | ||
900.0 °C | 565 J/(kg·K) | ||
1000.0 °C | 571 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 13.3 W/(m·K) | |
100.0 °C | 14.9 W/(m·K) | ||
200.0 °C | 16.5 W/(m·K) | ||
300.0 °C | 18.1 W/(m·K) | ||
400.0 °C | 19.5 W/(m·K) | ||
500.0 °C | 21 W/(m·K) | ||
600.0 °C | 22.4 W/(m·K) | ||
700.0 °C | 23.8 W/(m·K) | ||
800.0 °C | 25.2 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 3.5 mm²/s | |
100.0 °C | 3.8 mm²/s | ||
200.0 °C | 4 mm²/s | ||
300.0 °C | 4.3 mm²/s | ||
400.0 °C | 4.5 mm²/s | ||
500.0 °C | 4.7 mm²/s | ||
600.0 °C | 4.8 mm²/s | ||
700.0 °C | 5.1 mm²/s | ||
800.0 °C | 5.4 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 7.91E-7 Ω·m |
100.0 °C | 8.45E-7 Ω·m | |
200.0 °C | 9.19E-7 Ω·m | |
300.0 °C | 9.77E-7 Ω·m | |
400.0 °C | 1.03E-6 Ω·m | |
500.0 °C | 1.08E-6 Ω·m | |
600.0 °C | 1.12E-6 Ω·m | |
700.0 °C | 1.15E-6 Ω·m | |
800.0 °C | 1.18E-6 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.03 % |
Chromium | 16.5 - 18.5 % |
Manganese | 2 % |
Molybdenum | 2 - 2.5 % |
Nickel | 10 - 13 % |
Nitrogen | 0.11 % |
Phosphorus | 0.05 % |
Silicon | 1 % |
Sulfur | 0.015 % |
Metal
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