EN 10217-7 X2CrNiN23-4 Austenitic Ferritic Steel – Solution Annealed for Corrosion-Resistant Tubes
The austenitic ferritic steel X2CrNiN23-4 is available in the solution annealed condition. Welded circular tubes of this steel are used for compression load and for corrosive load at room temperature, low temperatures and elevated temperatures. The material is resistant to intercrystalline corrosion (up to 265 °C) also in the welded condition.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 200 - 212 GPa | |
100.0 °C | 194 - 206 GPa | ||
200.0 °C | 186 GPa | ||
300.0 °C | 180 GPa | ||
Elongation | 20.0 °C | 25 % | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Duplex Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Duplex Stainless Steel |
Tensile strength | 20.0 °C | 600 - 820 MPa | |
Yield strength Rp0.2 | 20.0 °C | 400 MPa | |
50.0 °C | 370 MPa | ||
100.0 °C | 330 MPa | ||
150.0 °C | 300 - 310 MPa | ||
200.0 °C | 280 - 290 MPa | ||
250.0 °C | 265 - 280 MPa | ||
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.3E-5 - 1.33E-5 1/K | |
200.0 °C | 1.35E-5 1/K | ||
300.0 °C | 1.4E-5 1/K | ||
Max service temperature | 300 °C | Typical for Duplex Stainless Steel | |
Melting point | 1375 - 1450 °C | Typical for Duplex Stainless Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 13.4 - 15 W/(m·K) | |
100.0 °C | 14.9 W/(m·K) | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 7.85E-7 - 8E-7 Ω·m |
100.0 °C | 8.44E-7 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.03 % |
Chromium | 22 - 24 % |
Copper | 0.1 - 0.6 % |
Manganese | 2 % |
Molybdenum | 0.1 - 0.6 % |
Nickel | 3.5 - 5.5 % |
Nitrogen | 0.05 - 0.2 % |
Phosphorus | 0.04 % |
Silicon | 1 % |
Sulfur | 0.015 % |
Metal
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- EN 10217-7 Grade X2CrNiMoN17-13-5 – Solution Annealed Stainless Steel for High-Temperature Corrosion Resistance