JIS G7701 30CrMoV3 Introduce
JIS G7701 30CrMoV3 is one of the most popular and widely-used steels due to its excellent mechanical and corrosion properties. It is composed of a combination of iron and other alloys, which vary depending on the grade being used. JIS G7701 30CrMoV3 has consistently shown good strength, ductility, and toughness, making it highly sought after in numerous industries and applications. Additionally, its superior corrosion resistance makes it an ideal material for marine environments, as well as other high humidity areas. Because of all these features, JIS G7701 30CrMoV3 can safely be considered one the best steels available today.
Smelting temperature:1539°C - 1748°C
Application:Tool steel
JIS G7701 30CrMoV3 Material Chemical Composition
The chemical composition of the JIS G7701 30CrMoV3 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Vanadium (V) | 0.4000 | 0.7000 |
| Silicon (Si) | 0.1000 | 0.4000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| Molybdenum (Mo) | 2.5000 | 3.0000 |
| Manganese (Mn) | 0.1500 | 0.4500 |
| Chromium (Cr) | 2.5000 | 3.5000 |
| Carbon (C) | 0.2500 | 0.3500 |
JIS G7701 30CrMoV3 Material Mechanical Properties
The mechanical properties of the JIS G7701 30CrMoV3 steel are as follows:
| YieldRp0.2 | ≤ 967 (MPa) |
| TeileRm | ≤ 199 (MPa) |
| ImpactKV/Ku | 41(J) |
| ElongationA | 31% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 424 |
JIS G7701 30CrMoV3 Material Thermal Properties
The thermal performance parameters of the JIS G7701 30CrMoV3 steel are as follows:
| Temperature (°C) | 44 | 965 | 113 |
| Modulus of elasticity (GPa) | - | 811 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 33 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 331 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.32 | - | - |
| Deity (kg/dm³) | - | - | 431 |
| Poisson’s coefficient, ν | - | - | 342 |