EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT)
EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT) introduction
Cold-rolled narrow strip made of the alloy steel 42CrMo4 will be delivered in thicknesses up to 6 mm for quenching and tempering and for quenched and tempered cold strip in thicknesses between 0.3 mm and 3.0 mm in following conditions:
- soft annealed or soft annealed and little rerolled (+A or +LC),
- cold rolled (+CR),
- quenched and tempered (+QT).
The delivery condition annealed to globular carbides (+AC) can be agreed.
Equivalent material: JIS SCM440M, ASTM A506 Grade 4140, ASTM A506 Grade 4142, UNS G41400, DIN 1.7231, DIN GS-42CrMo4, DIN 42CrMo4, EN 1.7231, DIN 1.7225, 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 SCM440H, JIS SNB7, 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 12, ASTM Grade 7M, ASTM Grade L7, UNS H41400, UNS H41420, UNS G41420, UNS G41450, IS 40Cr1Mo28
EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.83 g/cm³ |
EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT) 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 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 45.1 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 45.1 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 44.1 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 41.9 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 39.4 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 36.9 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 34.4 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 12.5 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 11.6 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 10.6 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9.5 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.4 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.8 mm²/s |
- |
EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.38 - 0.45 % |
| Chromium |
Chromium of 0.9 - 1.2 % |
| Manganese |
Manganese of 0.6 - 0.9 % |
| Molybdenum |
Molybdenum of 0.15 - 0.3 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.035 % |
EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 2.31E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.84E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.58E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.48E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.52E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.71E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.06E-7 Ω·m |
EN 10132-3 Grade 42CrMo4 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
| 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 |
| Hardness, Rockwell C |
20.0 °C |
Hardness, Rockwell C of 35 - 48.5 [-] |
| Hardness, Vickers |
20.0 °C |
Hardness, Vickers of 340 - 490 [-] |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| Tensile strength |
20.0 °C |
Tensile strength of 1100 - 1600 MPa |
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