EN 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC)
EN 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC) introduction
The cold-upsettable steel 34 CrNiMo 8 can be cold-formed with the suitable tools with a medium rate of forming according to the usual forming methods on single-stage and multi-stage presses. It is used for high-strength screws of strength class 12.9 in the thick dimension range. For special stress, screws of strength class 14.9 in the thin dimension range can be produced.
Equivalent material: NBN 30CrNiMo8, AFNOR 30CND8, ISO C43, JIS SNCM630, PN 30H2N2M, SS 2534, UNE 32NiCrMo16, DIN 1.6579, EN 1.6579, DIN 1.6580, DIN 32NiCrMo8-5, AFNOR 30NCD8, BS 823M30, AISI 4337, AISI E4337, SAE 4337, SAE E4337, EN 30CrNiMo8, EN 1.6580
EN 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 g/cm³ |
EN 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC) 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 1.21E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.27E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 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 |
- |
| 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 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 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 36.2 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 37.8 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 37.2 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 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC) chemical
| Property |
Value |
| Carbon |
Carbon of 0.26 - 0.34 % |
| Chromium |
Chromium of 1.8 - 2.2 % |
| Manganese |
Manganese of 0.3 - 0.6 % |
| Molybdenum |
Molybdenum of 0.3 - 0.5 % |
| Nickel |
Nickel of 1.8 - 2.2 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.035 % |
EN 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 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 10263-4 Grade 30CrNiMo8 annealed to achieve spheroidized carbides (+AC) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
- |
| - |
20.0 °C |
Elastic modulus of 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 207 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 199 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 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 |
- |
| 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 58 % |
- |
| Tensile strength |
20.0 °C |
Tensile strength of 700 MPa |
- |
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