EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT)
EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT) introduction
The austenitic-ferritic steel X2CrNiN23-4 is a stainless duplex steel of high strength and hardness, favorable resistance to general corrosion, pitting corrosion and especially to stress corrosion. Furthermore resistance to intercrystalline corrosion also in the sensitized resp. welded condition.
The sort is acc. to DIN EN 10095 applicable as heat resistant steel.
Application: for lightweight constructions of longer durability and higher reliability, in the apparatus construction for heat-exchanger and pipelines in chloride-containing media, hydraulic tubes, feeder water preheater, agitator shafts and steam heating systems
Equivalent material: GB 022Cr23Ni4MoCuN, GB S23043, ASTM A240Type2304, UNS S32304, AFNOR Z2CN23-4Az, DIN X2CrNiN23-4, ISO X2CrNiN23-4, ISO 4362-323-04-I, DIN 1.4362, AFNOR Z2CN23-04AZ, SS 2327, AISI S32304, SAE S32304, EN 1.4362, ASTM 2304
EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 g/cm³ |
EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.3E-5 - 1.33E-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 13.4 - 15 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 14.9 W/(m·K) |
- |
EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.03 % |
| Chromium |
Chromium of 22 - 24 % |
| Copper |
Copper of 0.1 - 0.6 % |
| Manganese |
Manganese of 2 % |
| Molybdenum |
Molybdenum of 0.1 - 0.6 % |
| Nickel |
Nickel of 3.5 - 5.5 % |
| Nitrogen |
Nitrogen of 0.05 - 0.2 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.015 % |
EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 7.85E-7 - 8E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 8.44E-7 Ω·m |
EN 10028-7 Grade X2CrNiN23-4 solution annealed (+AT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 200 - 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 194 - 206 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 186 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 180 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 20 - 25 % |
- |
| Elongation A80 |
20.0 °C |
Elongation A80 of 20 - 25 % |
- |
| Elongation A80, transverse |
20.0 °C |
Elongation A80, transverse of 20 - 25 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 20 - 25 % |
- |
| 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 600 - 850 MPa |
- |
| - |
50.0 °C |
Tensile strength of 577 MPa |
- |
| - |
100.0 °C |
Tensile strength of 540 MPa |
- |
| - |
150.0 °C |
Tensile strength of 520 MPa |
- |
| - |
200.0 °C |
Tensile strength of 500 MPa |
- |
| - |
250.0 °C |
Tensile strength of 490 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 600 - 850 MPa |
- |
| Yield strength Rp0.2 |
50.0 °C |
Yield strength Rp0.2 of 374 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 330 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 300 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 280 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 265 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 385 - 420 MPa |
- |
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