EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT)
EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT) introduction
Steel 30CrNiMo8 is suitable for high loaded parts (also large forged parts) with high heat-treatment sections and favorable toughness properties in aircraft and heavy-vehicle construction, machine engineering (e.g. propeller shafts, connecting rods, transmission shafts). Furthermore for large forged parts (e.g. rotors, shafts, discs). Lowest working temperature -40 °C.
Equivalent material: NBN 30CrNiMo8, AFNOR 30CND8, BS 830M30, ISO 31CrNiMo8, UNI 30NiCrMo8, JIS SNCM630, PN 30H2N2M, SS 2534, UNE 32NiCrMo16, ASTM E4340, DIN 30CrNiMo8, ISO 30CrNiMo8, ASTM A29 Grade 4340, ASTM A505 Grade 4340, ASTM A434 Grade 4340, ASTM A829 Grade 4340, UNS G43400, EN 1.6580, DIN 1.6580, DIN 32NiCrMo8-5, AFNOR 30NCD8, BS 823M30, AISI 4337, AISI E4337, SAE 4337, SAE E4337
EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 - 7.85 g/cm³ |
EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.05E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.15E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.11E-5 - 1.21E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.21E-5 - 1.27E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.29E-5 - 1.32E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.35E-5 - 1.36E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.4E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.44E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of -40 - 0 °C |
- |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Nickel Chromium Molybdenum Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 423 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 460 - 461 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 499 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 536 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 558 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 587 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 33.7 - 42 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 36.2 - 50.3 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 37.8 - 49 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 37.2 - 47.8 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 35.7 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 34 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 32 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 9.4 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 9.4 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 9.2 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 8.5 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 7.6 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 6.6 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.4 mm²/s |
- |
EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.26 - 0.34 % |
| Chromium |
Chromium of 1.8 - 2.2 % |
| Copper |
Copper of 0.4 % |
| Manganese |
Manganese of 0.3 - 0.8 % |
| Molybdenum |
Molybdenum of 0.3 - 0.5 % |
| Nickel |
Nickel of 1.8 - 2.2 % |
| Phosphorus |
Phosphorus of 0.03 - 0.04 % |
| Silicon |
Silicon of 0.1 - 0.4 % |
| Sulfur |
Sulfur of 0.035 % |
EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.9E-7 - 3.09E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.54E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 4.18E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 5.05E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 6.09E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 7.27E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.67E-7 Ω·m |
EN 10083-1 Grade 30CrNiMo8 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
- |
| - |
20.0 °C |
Elastic modulus of 210 - 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 205 - 207 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 195 - 199 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 185 - 192 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 184 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 175 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 9 - 12 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Nickel Chromium Molybdenum Steel |
| Reduction of area |
20.0 °C |
Reduction of area of 40 - 50 % |
- |
| Shear modulus |
20.0 °C |
Shear modulus of 81 GPa |
- |
| Tensile strength |
20.0 °C |
Tensile strength of 900 - 1450 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 700 - 1050 MPa |
- |
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