EN 10217-7 Grade X1NiCrMoCu25-20-5 – Solution Annealed Steel for Corrosion‑Resistant Applications
The austenitic steel X1NiCrMoCu25-20-5 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 400 °C) also in the welded condition.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.76 - 8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | -100.0 °C | 206 GPa | |
20.0 °C | 195 - 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 | 35 % | |
Elongation, transverse | 20.0 °C | 30 % | |
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 | 520 - 720 MPa | |
Tensile strength, transverse | 20.0 °C | 520 - 720 MPa | |
Yield strength Rp0.2 | 20.0 °C | 220 MPa | |
50.0 °C | 221 MPa | ||
100.0 °C | 205 MPa | ||
150.0 °C | 190 MPa | ||
200.0 °C | 175 MPa | ||
250.0 °C | 160 MPa | ||
300.0 °C | 145 MPa | ||
350.0 °C | 135 MPa | ||
400.0 °C | 125 MPa | ||
450.0 °C | 115 MPa | ||
500.0 °C | 110 MPa | ||
550.0 °C | 105 MPa | ||
Yield strength Rp0.2, transverse | 20.0 °C | 220 MPa | |
Yield strength Rp1.0 | 20.0 °C | 250 MPa | |
50.0 °C | 244 MPa | ||
100.0 °C | 235 MPa | ||
150.0 °C | 220 MPa | ||
200.0 °C | 205 MPa | ||
250.0 °C | 190 MPa | ||
300.0 °C | 175 MPa | ||
350.0 °C | 165 MPa | ||
400.0 °C | 155 MPa | ||
450.0 °C | 145 MPa | ||
500.0 °C | 140 MPa | ||
550.0 °C | 135 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 | 1.58E-5 - 1.67E-5 1/K | ||
200.0 °C | 1.61E-5 - 1.72E-5 1/K | ||
300.0 °C | 1.65E-5 - 1.77E-5 1/K | ||
400.0 °C | 1.69E-5 - 1.81E-5 1/K | ||
500.0 °C | 1.73E-5 - 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 | 450 - 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 | 11.9 - 12 W/(m·K) | |
100.0 °C | 13.3 W/(m·K) | ||
200.0 °C | 15.1 W/(m·K) | ||
300.0 °C | 16.7 W/(m·K) | ||
400.0 °C | 18.3 W/(m·K) | ||
500.0 °C | 19.8 W/(m·K) | ||
600.0 °C | 21.3 W/(m·K) | ||
700.0 °C | 22.8 W/(m·K) | ||
800.0 °C | 24.3 W/(m·K) | ||
900.0 °C | 25.7 W/(m·K) | ||
1000.0 °C | 27.1 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 3.3 mm²/s | |
100.0 °C | 3.4 mm²/s | ||
200.0 °C | 3.7 mm²/s | ||
300.0 °C | 4.1 mm²/s | ||
400.0 °C | 4.3 mm²/s | ||
500.0 °C | 4.5 mm²/s | ||
600.0 °C | 4.7 mm²/s | ||
700.0 °C | 5 mm²/s | ||
800.0 °C | 5.4 mm²/s | ||
900.0 °C | 5.7 mm²/s | ||
1000.0 °C | 5.8 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 9.59E-7 - 1E-6 Ω·m |
100.0 °C | 1.01E-6 Ω·m | |
200.0 °C | 1.05E-6 Ω·m | |
300.0 °C | 1.1E-6 Ω·m | |
400.0 °C | 1.13E-6 Ω·m | |
500.0 °C | 1.17E-6 Ω·m | |
600.0 °C | 1.19E-6 Ω·m | |
700.0 °C | 1.22E-6 Ω·m | |
800.0 °C | 1.24E-6 Ω·m | |
900.0 °C | 1.26E-6 Ω·m | |
1000.0 °C | 1.28E-6 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.02 % |
Chromium | 19 - 21 % |
Copper | 1.2 - 2 % |
Manganese | 2 % |
Molybdenum | 4 - 5 % |
Nickel | 24 - 26 % |
Nitrogen | 0.15 % |
Phosphorus | 0.03 % |
Silicon | 0.7 % |
Sulfur | 0.01 % |
Metal
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