JIS G7701 5CrMo4 Introduce
JIS G7701 5CrMo4 is a type of low carbon steel. This steel has a good combination of ferrite and austenite, which is why it is highly resistant to stress corrosion cracking. It is also known for its ability to provide excellent strength and ductility. It is strong, lightweight and relatively economical. Steel products made of this material are widely used in many industries, such industry. Automotive, aerospace, industrial and the construction sectors use this steel in large quantities.
Smelting temperature:1192°C - 1791°C
Application:Tool steel
JIS G7701 5CrMo4 Material Chemical Composition
The chemical composition of the JIS G7701 5CrMo4 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.0500 | 0.2500 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| Molybdenum (Mo) | 0.4000 | 0.6000 |
| Manganese (Mn) | 0.0500 | 0.2500 |
| Chromium (Cr) | 3.5000 | 4.5000 |
| Carbon (C) | - | 0.0700 |
JIS G7701 5CrMo4 Material Mechanical Properties
The mechanical properties of the JIS G7701 5CrMo4 steel are as follows:
| YieldRp0.2 | ≤ 434 (MPa) |
| TeileRm | ≤ 686 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 41% |
| Reduction in cross section on fractureZ | 42% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 143 |
JIS G7701 5CrMo4 Material Thermal Properties
The thermal performance parameters of the JIS G7701 5CrMo4 steel are as follows:
| Temperature (°C) | 43 | 621 | 532 |
| Modulus of elasticity (GPa) | - | 124 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 34 |
| Thermal conductivity (W/m·°C) | - | 43.3 | 33.2 |
| Specific thermal capacity (J/kg·°C) | - | 123 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.34 | - | - |
| Deity (kg/dm³) | - | - | 112 |
| Poisson’s coefficient, ν | - | - | 144 |