SAE J1268 Grade E4340H
Equivalent material: AISI E4340H, ASTM Grade B23, DIN 1.6562, DIN 40NiCrMo8-4, DIN 40 NiCrMo 8 4, BS 4333M4, AISI 4337, AISI E4340, SAE 4337, SAE E4340, JIS SNB23-1, JIS SNB23-2, JIS SNB23-3, JIS SNB23-4, JIS SNB23-5, EN 40NiCrMo8-4, EN 1.6562, ASTM E4340
SAE J1268 Grade E4340H general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Nickel Chromium Molybdenum Steel |
SAE J1268 Grade E4340H thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1E-5 - 1.3E-5 1/K |
Typical for Nickel Chromium Molybdenum Steel |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Nickel Chromium Molybdenum Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 448 - 670 J/(kg·K) |
Typical for Nickel Chromium Molybdenum Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 34 - 54 W/(m·K) |
Typical for Nickel Chromium Molybdenum Steel |
SAE J1268 Grade E4340H electrical
| Property |
Value |
| Carbon |
Carbon of 0.37 - 0.44 % |
| Chromium |
Chromium of 0.65 - 0.95 % |
| Copper |
Copper of 0.35 % |
| Iron |
balance |
| Manganese |
Manganese of 0.6 - 0.95 % |
| Molybdenum |
Molybdenum of 0.2 - 0.3 % |
| Nickel |
Nickel of 1.55 - 2 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.15 - 0.35 % |
| Sulfur |
Sulfur of 0.025 % |
SAE J1268 Grade E4340H mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Nickel Chromium Molybdenum Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Nickel Chromium Molybdenum Steel |
