EN 10222-2 Grade 18MnMoNi5-5 quenched and tempered (+QT)
EN 10222-2 Grade 18MnMoNi5-5 quenched and tempered (+QT) introduction
The high-temperature material 18MnMoNi5-5, material number 1.6308 is used for pressure vessels.
Equivalent material: JIS SFVQ1A, JIS SFVQ1B, KS SFVQ1A, KS SFVQ1B, JIS SFVQ2A, JIS SFVQ2B, KS SFVQ2A, KS SFVQ2B, ASTM A508 Grade 3, UNS K12042, DIN 1.6308, DIN 18MnMoNi5-5, EN 1.6308
EN 10222-2 Grade 18MnMoNi5-5 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Nickel Molybdenum Steel |
EN 10222-2 Grade 18MnMoNi5-5 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 9E-6 - 1.3E-5 1/K |
Typical for Nickel Molybdenum Steel |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Nickel Molybdenum Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 335 - 481 J/(kg·K) |
Typical for Nickel Molybdenum Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 44 W/(m·K) |
Typical for Nickel Molybdenum Steel |
EN 10222-2 Grade 18MnMoNi5-5 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.2 % |
| Manganese |
Manganese of 1.15 - 1.55 % |
| Molybdenum |
Molybdenum of 0.45 - 0.55 % |
| Nickel |
Nickel of 0.5 - 0.8 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.01 - 0.015 % |
| Vanadium |
Vanadium of 0.03 % |
EN 10222-2 Grade 18MnMoNi5-5 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Nickel Molybdenum Steel |
| Elongation |
20.0 °C |
Elongation of 20 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Nickel Molybdenum Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 550 - 670 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 400 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 385 MPa |
- |
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