ASTM A829 Grade 4340 As-Rolled, Annealed, Normalized, Normalized and Tempered, or Quenched and Tempered; Tensile strength range 100 MPa
Equivalent material: DIN 1.6563, DIN 41NiCrMo7-3-2, BS S 149, AISI 4340, SAE 4340, EN 41NiCrMo7-3-2, EN 1.6563, ASTM 4340, UNS G43400
ASTM A829 Grade 4340 As-Rolled, Annealed, Normalized, Normalized and Tempered, or Quenched and Tempered; Tensile strength range 100 MPa general
| Property |
Temperature |
Value |
Comment |
| Density |
20.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Nickel Chromium Molybdenum Steel |
ASTM A829 Grade 4340 As-Rolled, Annealed, Normalized, Normalized and Tempered, or Quenched and Tempered; Tensile strength range 100 MPa thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
20.0 °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 |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 34 - 54 W/(m·K) |
Typical for Nickel Chromium Molybdenum Steel |
ASTM A829 Grade 4340 As-Rolled, Annealed, Normalized, Normalized and Tempered, or Quenched and Tempered; Tensile strength range 100 MPa electrical
| Property |
Value |
| Carbon |
Carbon of 0.38 - 0.43 % |
| Chromium |
Chromium of 0.7 - 0.9 % |
| Manganese |
Manganese of 0.6 - 0.8 % |
| Molybdenum |
Molybdenum of 0.2 - 0.3 % |
| Nickel |
Nickel of 1.65 - 2 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.15 - 0.35 % |
| Sulfur |
Sulfur of 0.04 % |
ASTM A829 Grade 4340 As-Rolled, Annealed, Normalized, Normalized and Tempered, or Quenched and Tempered; Tensile strength range 100 MPa mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Nickel Chromium Molybdenum Steel |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Nickel Chromium Molybdenum Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 480 MPa |
- |
