EN 10297-1 Grade 34CrMo4 quenched and tempered (+QT)
Equivalent material: EN 34CrMo4, DIN 1.7220, AFNOR 35CD4, BS 708A37, UNI 35CrMo4, SS 2234, UNE 34CrMo4, AISI 4137, AISI 4135, AISI 4135H, AISI 4137H, SAE 4137, SAE 4135, SAE 4135H, SAE 4137H, JIS SCM435, JIS SCCRM3, JIS STH22, JIS SCM3H, JIS SCCrM3, JIS SCM435H, JIS SCM435TK, JIS SCM435M, JIS SCM432, JIS SCM430M, EN 1.7220, GOST 34ChM, GB ML30CrMo, ASTM 4135H, ASTM 4137, ASTM 4135, ASTM Grade L72, ASTM Grade L7B, UNS G41350, UNS G41370, UNS H41350, UNS H41370
EN 10297-1 Grade 34CrMo4 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.81 g/cm³ |
EN 10297-1 Grade 34CrMo4 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 39.6 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 41.6 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 41.8 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 40.3 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 38.2 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 36 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 33.6 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 11 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 10.8 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 10.1 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9.2 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.1 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
EN 10297-1 Grade 34CrMo4 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.3 - 0.37 % |
| 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 10297-1 Grade 34CrMo4 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 2.63E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.08E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.78E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.66E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.69E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.87E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.26E-7 Ω·m |
EN 10297-1 Grade 34CrMo4 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| 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 |
- |
| Elongation |
20.0 °C |
Elongation of 11 - 15 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 9 - 13 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Chromium Molybdenum Steel |
| Reduction of area |
20.0 °C |
Reduction of area of 45 - 55 % |
- |
| Reduction of area, transverse |
20.0 °C |
Reduction of area, transverse of 45 - 55 % |
- |
| Tensile strength |
20.0 °C |
Tensile strength of 750 - 1200 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 750 - 1200 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 500 - 800 MPa |
- |
| Yield strength, transverse |
20.0 °C |
Yield strength, transverse of 500 - 800 MPa |
- |
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