JIS G4805 SUJ3 Introduce
JIS G4805 SUJ3 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 SUJ3 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:1192°C - 1527°C
Application:High carbon chromium bearing steel
JIS G4805 SUJ3 Material Chemical Composition
The chemical composition of the JIS G4805 SUJ3 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.4000 | 0.7000 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | - | 0.2500 |
| Manganese (Mn) | 0.9000 | 1.1500 |
| Copper (Cu) | - | 0.2500 |
| Chromium (Cr) | 0.9000 | 1.2000 |
| Carbon (C) | 0.9500 | 1.1000 |
JIS G4805 SUJ3 Material Mechanical Properties
The mechanical properties of the JIS G4805 SUJ3 steel are as follows:
| YieldRp0.2 | ≤ 553 (MPa) |
| TeileRm | ≤ 182 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 114 |
JIS G4805 SUJ3 Material Thermal Properties
The thermal performance parameters of the JIS G4805 SUJ3 steel are as follows:
| Temperature (°C) | 43 | 355 | 781 |
| Modulus of elasticity (GPa) | - | 982 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 21.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 131 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 231 |
| Poisson’s coefficient, ν | - | - | 442 |