EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT)
EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT) introduction
The austenitic ferritic steel X2CrNiMoN25-7-4 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 380 °C) also in the welded condition.
Equivalent material: GB 022Cr25Ni7Mo4N, GB S25073, UNS S32750, DIN 1.4410, DIN GX10CrNiMo18-9, AFNOR Z3CND25-06Az, AISI A182 F53, AISI S32750, SAE A182 F53, SAE S32750, EN 1.4410, ASTM Type 2507, ASTM F53
EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 g/cm³ |
EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.35E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.4E-5 1/K |
- |
| Max service temperature |
- |
Max service temperature of 300 °C |
Typical for Duplex Stainless Steel |
| Melting point |
- |
Melting point of 1375 - 1450 °C |
Typical for Duplex Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 500 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 15 W/(m·K) |
- |
EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.03 % |
| Chromium |
Chromium of 24 - 26 % |
| Manganese |
Manganese of 2 % |
| Molybdenum |
Molybdenum of 3 - 4.5 % |
| Nickel |
Nickel of 6 - 8 % |
| Nitrogen |
Nitrogen of 0.2 - 0.35 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.015 % |
EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 8E-7 Ω·m |
EN 10217-7 Grade X2CrNiMoN25-7-4 solution annealed (+AT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 200 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 194 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 186 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 180 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 20 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Duplex Stainless Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 77 GPa |
Typical for Duplex Stainless Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 800 - 1000 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 550 MPa |
- |
| - |
50.0 °C |
Yield strength Rp0.2 of 502 - 530 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 450 - 480 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 420 - 445 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 400 - 420 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 380 - 405 MPa |
- |
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