JIS G4805 SUJ1 Introduce
JIS G4805 SUJ1 steel displays excellent corrosion and wear resistance. Generally, the chromium and nickel content in the steel provides good resistance to corrosion in a variety of environments, while the molybdenum content provides additional resistance to corrosion in high-temperature and high-pressure applications. JIS G4805 SUJ1 is a versatile steel alloy used in a variety of applications. It provides many benefits due to its chemical composition, including excellent strength, wear resistance, and corrosion protection.
Smelting temperature:1645°C - 1171°C
Application:High carbon chromium bearing steel
JIS G4805 SUJ1 Material Mechanical Properties
The mechanical properties of the JIS G4805 SUJ1 steel are as follows:
| YieldRp0.2 | ≤ 393 (MPa) |
| TeileRm | ≤ 874 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 134 |
JIS G4805 SUJ1 Material Thermal Properties
The thermal performance parameters of the JIS G4805 SUJ1 steel are as follows:
| Temperature (°C) | 13 | 265 | 743 |
| Modulus of elasticity (GPa) | - | 379 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 41 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 211 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.33 | - | - |
| Deity (kg/dm³) | - | - | 141 |
| Poisson’s coefficient, ν | - | - | 134 |