EN 10088-1 Grade X2CrNiN23-4 solution annealed (+AT)
EN 10088-1 Grade X2CrNiN23-4 solution annealed (+AT) introduction
The patented steel X2CrNiN23-4 (acc. to VdTÜV-material specification 496 : 2001-09: X 2 CrNiN 23 4), material number 1.4362 is acc. to VdTÜV-Wbl 496 : 2001-09 used for pressure vessels as per TRB 100 and AD-data sheets W 2 and W 10 for pipelines and pipeline components acc. to TRR, TRbF and TRGL, for pressure gas tanks as per TRG each from -40 to 280 °C. For application in nuclear power engineering are required individual certificates or additional expertises as far as this is stated in nuclear rules or object-related specifications. The steel is suitable for pressure devices acc. to EG-Directive 97/23/EG (allowing for paragraph 4 appendix I). Welding suitability of the steel is examined allowing for generally accepted engineering rules for the following welding methods: metal inert gas welding, metal arc welding and submerged welding.
The working temperature during the welding shouldnt exceed 120 degrees. An heat-treating afte the welding isnt necessary.
This material is cold and warm formable. X2CrNiN23-4 tends to 475 °C.-embrittlement. Short-term overstepping of the upper application temperature limit of 280 °C. to max. 300 °C. is allowable.
After an running time of over 5000 h at 300 degrees an decrease of the notch impact energy is possible.
The material is well resistant to stress corrosion and intercrystalline corrosion (also in sensitized condition). Well resistant to general corrosion and pitting corrosion. To the material acc. to DIN EN 10088 : 1995-08 applies: X2CrNiN23-4 is a stainless duplex steel with high strength and hardness. Application for leightweight constructions with longer durability and higher reliability, such as heat exchanger and pipelines in chloride containing media, hydraulic pipes, feeder water pre-heater, agitator shafts, steam heating systems. The material may be used acc. to DIN EN 10095 : 1999-05 as heat resistant steel.
Equivalent material: AFNOR Z2CN23-4Az, ISO X2CrNiN23-4, UNS S32304, ASTM 2304, ASTM S32304, SAE S32304, DIN X2CrNiN23-4, GB 022Cr23Ni4MoCuN, GB S23043, ISO 4362-323-04-I, ISO DP27B, ASTM A240 Grade 2304, ASTM A276UNSS32304, ASTM A480UNSS32304, ASTM A959UNSS32304, DIN 1.4362, AFNOR Z2CN23-04AZ, SS 2327, AISI S32304, EN 1.4362
EN 10088-1 Grade X2CrNiN23-4 solution annealed (+AT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 g/cm³ |
EN 10088-1 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 |
| Max service temperature, long |
- |
Max service temperature, long of -40 - 280 °C |
- |
| 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 10088-1 Grade X2CrNiN23-4 solution annealed (+AT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.03 % |
| Chromium |
Chromium of 22 - 24.5 % |
| 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 10088-1 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 10088-1 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, transverse |
20.0 °C |
Elongation A80, transverse of 20 - 25 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 20 - 25 % |
- |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 260 [-] |
- |
| 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 - 1050 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 630 - 850 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 400 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 400 - 450 MPa |
- |
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