EN 10217-7 Grade X2CrNiMoN22-5-3 Solution‑Annealed Steel (+AT) – High‑Performance, Corrosion‑Resistant Tubing
The austenitic ferritic steel X2CrNiMoN22-5-3 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 295 °C) also in the welded condition.
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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 % | |
Elongation, transverse | 20.0 °C | 20 % | |
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 | 700 - 920 MPa | |
Tensile strength, transverse | 20.0 °C | 700 - 920 MPa | |
Yield strength Rp0.2 | 20.0 °C | 450 MPa | |
50.0 °C | 415 MPa | ||
100.0 °C | 360 MPa | ||
150.0 °C | 335 MPa | ||
200.0 °C | 310 MPa | ||
250.0 °C | 295 MPa | ||
Yield strength Rp0.2, transverse | 20.0 °C | 450 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 | 21 - 23 % |
Manganese | 2 % |
Molybdenum | 2.5 - 3.5 % |
Nickel | 4.5 - 6.5 % |
Nitrogen | 0.1 - 0.22 % |
Phosphorus | 0.04 % |
Silicon | 1 % |
Sulfur | 0.015 % |
Metal
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