EN 10217-7 Grade X1CrNiMoCuN20-18-7 – Solution Annealed Steel for High-Performance Applications
The austenitic steel X1CrNiMoCuN20-18-7 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 | 8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 195 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 | ||
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 | 650 - 850 MPa | |
Tensile strength, transverse | 20.0 °C | 650 - 850 MPa | |
Yield strength Rp0.2 | 20.0 °C | 300 MPa | |
50.0 °C | 267 MPa | ||
100.0 °C | 230 MPa | ||
150.0 °C | 205 MPa | ||
200.0 °C | 190 MPa | ||
250.0 °C | 180 MPa | ||
300.0 °C | 170 MPa | ||
350.0 °C | 165 MPa | ||
400.0 °C | 160 MPa | ||
450.0 °C | 153 MPa | ||
500.0 °C | 148 MPa | ||
Yield strength Rp0.2, transverse | 20.0 °C | 300 MPa | |
Yield strength Rp1.0 | 20.0 °C | 340 MPa | |
50.0 °C | 306 MPa | ||
100.0 °C | 270 MPa | ||
150.0 °C | 245 MPa | ||
200.0 °C | 225 MPa | ||
250.0 °C | 212 MPa | ||
300.0 °C | 200 MPa | ||
350.0 °C | 195 MPa | ||
400.0 °C | 190 MPa | ||
450.0 °C | 184 MPa | ||
500.0 °C | 180 MPa | ||
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.65E-5 1/K | |
200.0 °C | 1.7E-5 1/K | ||
300.0 °C | 1.75E-5 1/K | ||
400.0 °C | 1.8E-5 1/K | ||
500.0 °C | 1.8E-5 1/K | ||
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 14 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 8.5E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.02 % |
Chromium | 19.5 - 20.5 % |
Copper | 0.5 - 1 % |
Manganese | 1 % |
Molybdenum | 6 - 7 % |
Nickel | 17.5 - 18.5 % |
Nitrogen | 0.18 - 0.25 % |
Phosphorus | 0.03 % |
Silicon | 0.7 % |
Sulfur | 0.01 % |
Metal
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