EN 10028‑7 Grade X2CrNiMoCuWN25‑7‑4 – Solution Annealed Austenitic‑Ferritic Stainless Steel
The austenitic-ferritic steel X2CrNiMoCuWN25-7-4 will be delivered in the solution annealed condition as cold rolled strip, hot rolled sheet and strip, bars, wire rod and profiles. It shows resistance to intercrystalline corrosion even in sensitized 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 GPa | |
100.0 °C | 194 GPa | ||
200.0 °C | 186 GPa | ||
300.0 °C | 180 GPa | ||
Elongation | 20.0 °C | 25 % | |
Elongation A80 | 20.0 °C | 25 % | |
Elongation A80, transverse | 20.0 °C | 20 - 25 % | |
Elongation, transverse | 20.0 °C | 20 - 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 | 730 - 930 MPa | |
50.0 °C | 711 MPa | ||
100.0 °C | 680 MPa | ||
150.0 °C | 660 MPa | ||
200.0 °C | 640 MPa | ||
250.0 °C | 630 MPa | ||
Tensile strength, transverse | 20.0 °C | 730 - 1000 MPa | |
Yield strength Rp0.2 | 50.0 °C | 500 MPa | |
100.0 °C | 450 MPa | ||
150.0 °C | 420 MPa | ||
200.0 °C | 400 MPa | ||
250.0 °C | 380 MPa | ||
Yield strength Rp0.2, transverse | 20.0 °C | 515 - 550 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.3E-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 | 15 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 8E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.03 % |
Chromium | 24 - 26 % |
Copper | 0.5 - 1 % |
Manganese | 1 % |
Molybdenum | 3 - 4 % |
Nickel | 6 - 8 % |
Nitrogen | 0.2 - 0.3 % |
Phosphorus | 0.04 % |
Silicon | 1 % |
Sulfur | 0.015 % |
Tungsten | 0.5 - 1 % |
Metal
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