SAE J1268 Grade 50B40H
Equivalent material: DIN 1.7007, DIN 37CrB1, AISI 50B40H, AISI 50B40, SAE 50B40, EN 1.7007, ISO 37CrB1E, GB/T A20378, GB/T ML37CrB, UNS H50401, UNS G50401
SAE J1268 Grade 50B40H general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Chromium Steel |
SAE J1268 Grade 50B40H thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 9.4E-6 - 1.5E-5 1/K |
Typical for Chromium Steel |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Chromium Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 440 - 494 J/(kg·K) |
Typical for Chromium Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 23 - 50 W/(m·K) |
Typical for Chromium Steel |
SAE J1268 Grade 50B40H chemical
| Property |
Value |
| Boron |
Boron of 5E-4 - 3E-3 % |
| Carbon |
Carbon of 0.37 - 0.44 % |
| Chromium |
Chromium of 0.3 - 0.7 % |
| Copper |
Copper of 0.35 % |
| Iron |
balance |
| Manganese |
Manganese of 0.65 - 1.1 % |
| Molybdenum |
Molybdenum of 0.06 % |
| Nickel |
Nickel of 0.25 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.15 - 0.35 % |
| Sulfur |
Sulfur of 0.04 % |
SAE J1268 Grade 50B40H mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Chromium Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Chromium Steel |
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