ASTM A387 Grade 12 Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered
Equivalent material: DIN 1.7225, DIN 42CrMo4, DIN 42CrMo4V, DIN 41CrMo4V, AFNOR 42CD4, BS 708M40, BS 709M40, BS EN19, UNI 42CrMo4, SS 2244, UNE 42CrMo4, UNE F.125, AISI 4140, AISI 4140H, AISI 4142H, AISI 4142, AISI 4145, AISI NV-7, SAE 4140, SAE 4140H, SAE 4142H, SAE 4142, SAE 4145, SAE NV-7, JIS SCM440, JIS SCM440M, JIS SCM440H, JIS SNB7, EN 42CrMo4, EN 42CrMo4V, EN 41CrMo4V, EN 1.7225, GOST 38ChM, GB/T 42CrMo, GB/T A30425, ASTM 4140H, ASTM 4142H, ASTM 4145, ASTM Grade B7, ASTM Grade B7M, ASTM Grade 7M, ASTM Grade L7, UNS G41400, UNS H41400, UNS H41420, UNS G41420, UNS G41450, IS 40Cr1Mo28, DIN 1.7227, DIN 42CrMoS4, EN 42CrMoS4, EN 1.7227
ASTM A387 Grade 12 Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered general
| Property |
Value |
Comment |
| Density |
Density of 7.8 - 7.9 g/cm³ |
Typical for Chromium Molybdenum Steel |
ASTM A387 Grade 12 Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered thermal
| Property |
Value |
Comment |
| Coefficient of thermal expansion |
Coefficient of thermal expansion of 1.1e-05 - 1.4e-05 1/K |
Typical for Chromium Molybdenum Steel |
| Melting point |
Melting point of 1382 - 1529 °C |
Typical for Chromium Molybdenum Steel |
| Specific heat capacity |
Specific heat capacity of 448 - 502 J/(kg·K) |
Typical for Chromium Molybdenum Steel |
| Thermal conductivity |
Thermal conductivity of 36 - 43 W/(m·K) |
Typical for Chromium Molybdenum Steel |
ASTM A387 Grade 12 Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered chemical
| Property |
Value |
Condition |
Related Standards |
Shape |
| Carbon |
Carbon of 0.05 - 0.17 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
| Chromium |
Chromium of 0.8 - 1.15 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
| Manganese |
Manganese of 0.4 - 0.65 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
| Molybdenum |
Molybdenum of 0.45 - 0.6 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
| Phosphorus |
Phosphorus of 0.025 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
| Silicon |
Silicon of 0.15 - 0.4 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
| Sulfur |
Sulfur of 0.025 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
ASTM A387 Grade 12 Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered electrical
| Property |
Value |
Comment |
| Electrical conductivity |
Electrical conductivity of 3 S/m |
Predicted Value |
| Electrical resistivity |
Electrical resistivity of 36 Ω·m |
Predicted Value |
ASTM A387 Grade 12 Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered mechanical
| Property |
Value |
Condition |
Related Standards |
Shape |
Comment |
| Elastic modulus |
Elastic modulus of 200 - 215 GPa |
- |
- |
- |
Typical for Chromium Molybdenum Steel |
| Elongation |
Elongation of 18 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
A200 |
| - |
Elongation of 19.2 % |
- |
- |
- |
Predicted Value, A80 |
| - |
Elongation of 19.3 % |
- |
- |
- |
Predicted Value, Transverse |
| - |
Elongation of 19.9 % |
- |
- |
- |
Predicted Value, A80 Transverse |
| - |
Elongation of 22 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
A50 |
| - |
Elongation of 26.2 % |
- |
- |
- |
Predicted Value |
| Poisson's ratio |
Poisson's ratio of 0.29 [-] |
- |
- |
- |
Typical for Chromium Molybdenum Steel |
| Reduction of area |
Reduction of area of 43.8 % |
- |
- |
- |
Predicted Value, Transverse |
| - |
Reduction of area of 45.1 % |
- |
- |
- |
Predicted Value |
| Shear modulus |
Shear modulus of 79.3 GPa |
- |
- |
- |
Predicted Value |
| Shear strength |
Shear strength of 606.1 MPa |
- |
- |
- |
Predicted Value |
| Tensile strength |
Tensile strength of 380 - 550 MPa |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
- |
| Yield strength |
Yield strength of 230 MPa |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
- |
| - |
Yield strength of 260.6 MPa |
- |
- |
- |
Predicted Value, RP1 |
| - |
Yield strength of 305.2 MPa |
- |
- |
- |
Predicted Value, RP05 |
| - |
Yield strength of 317.1 MPa |
- |
- |
- |
Predicted Value, RP1 Transverse |
| - |
Yield strength of 327 MPa |
- |
- |
- |
Predicted Value, Transverse |
| - |
Yield strength of 332.6 MPa |
- |
- |
- |
Predicted Value, RP02 |
| - |
Yield strength of 437.1 MPa |
- |
- |
- |
Predicted Value, RP002 |
| - |
Yield strength of 469.5 MPa |
- |
- |
- |
Predicted Value, RP02 Transverse |
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