EN 10269 Grade X8Ni9 quenched and tempered (+QT)
EN 10269 Grade X8Ni9 quenched and tempered (+QT) introduction
Low-temperature Ni-alloyed steel for pressure vessel construction, for refrigerators, gearbox parts and components in machine and apparatus engineering which are exposed temperatures up to -200 °C
Further application for mounting elements at lower temperatures.
Equivalent material: NBN 10Ni36, BS 510, BS 502-650, UNI X10Ni9, UNI X12Ni09, JIS SL9N53, JIS SL9N60, UNE F.2645-X8Ni09, ASTM A353, DIN XNi9, DIN 1.5662, DIN X8Ni9, AFNOR X8Ni9, BS 1501.509, BS 50, BS X8Ni9, UNE XBNi09, JIS STBL690, JIS SL9N520, JIS SL9N590, JIS STPL690, EN X10Ni9, EN 1.5662, ISO X8Ni9, ISO X9Ni9, ISO X10Ni9, ASTM A844
EN 10269 Grade X8Ni9 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.88 g/cm³ |
| - |
27.0 °C |
Density of 7.84 g/cm³ |
EN 10269 Grade X8Ni9 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.02E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.1E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.14E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.18E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.21E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.25E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of -200 - 0 °C |
- |
| Melting point |
- |
Melting point of 1316 - 1595 °C |
Typical for Nickel Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 442 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 464 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 495 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 511 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 528 J/(kg·K) |
- |
| Thermal conductivity |
-100.0 °C |
Thermal conductivity of 23.9 W/(m·K) |
- |
| - |
20.0 °C |
Thermal conductivity of 30.2 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 32.8 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 34.4 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 34.7 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 34 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 8.3 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 8.5 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 8.4 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 8 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 7.3 mm²/s |
- |
EN 10269 Grade X8Ni9 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.1 % |
| Manganese |
Manganese of 0.3 - 0.8 % |
| Molybdenum |
Molybdenum of 0.1 % |
| Nickel |
Nickel of 8.5 - 10 % |
| Phosphorus |
Phosphorus of 0.02 % |
| Silicon |
Silicon of 0.35 % |
| Sulfur |
Sulfur of 0.01 % |
| Vanadium |
Vanadium of 0.05 % |
EN 10269 Grade X8Ni9 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
-100.0 °C |
Electrical resistivity of 2.51E-7 Ω·m |
| - |
20.0 °C |
Electrical resistivity of 3.22E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.73E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 4.4E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 5.19E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 6.13E-7 Ω·m |
EN 10269 Grade X8Ni9 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-269.0 °C |
Elastic modulus of 205.5 GPa |
| - |
-200.0 °C |
Elastic modulus of 205.2 GPa |
| - |
-150.0 °C |
Elastic modulus of 203.4 GPa |
| - |
-100.0 °C |
Elastic modulus of 201 - 201.4 GPa |
| - |
-50.0 °C |
Elastic modulus of 198.9 GPa |
| - |
20.0 °C |
Elastic modulus of 195 GPa |
| - |
27.0 °C |
Elastic modulus of 195.1 GPa |
| - |
100.0 °C |
Elastic modulus of 190 GPa |
| - |
200.0 °C |
Elastic modulus of 184 GPa |
| - |
300.0 °C |
Elastic modulus of 178 GPa |
| - |
400.0 °C |
Elastic modulus of 170 GPa |
| Elongation |
20.0 °C |
Elongation of 18 % |
| Poisson's ratio |
-269.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
-200.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
-150.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
-100.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
-50.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
27.0 °C |
Poisson's ratio of 0.29 [-] |
| Reduction of area |
20.0 °C |
Reduction of area of 50 % |
| Shear modulus |
-269.0 °C |
Shear modulus of 80 GPa |
| - |
-200.0 °C |
Shear modulus of 79.8 GPa |
| - |
-150.0 °C |
Shear modulus of 79 GPa |
| - |
-100.0 °C |
Shear modulus of 78.2 GPa |
| - |
-50.0 °C |
Shear modulus of 77.1 GPa |
| - |
27.0 °C |
Shear modulus of 75.4 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 680 - 820 MPa |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 575 - 585 MPa |
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