JIS G7105 36CrNiMo4 Introduce
JIS G7105 36CrNiMo4 is a grade of alloy steel that exhibits excellent strength, toughness, and wear resistance. It is a carbon-manganese steel with a higher chromium and molybdenum content than other grades of alloy steel. It has excellent machinability and is frequently used as a material for automotive and engineering applications. It is also a preferred alloy for tooling and die applications.
Smelting temperature:1613°C - 1329°C
Application:Heat-treated steel, alloy steel, free-cutting steel - Part 18: Bright alloy steel and low alloy steel
JIS G7105 36CrNiMo4 Material Chemical Composition
The chemical composition of the JIS G7105 36CrNiMo4 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1000 | 0.4000 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | 0.9000 | 1.2000 |
| Molybdenum (Mo) | 0.1500 | 0.3000 |
| Manganese (Mn) | 0.5000 | 0.8000 |
| Chromium (Cr) | 0.9000 | 1.2000 |
| Carbon (C) | 0.3200 | 0.4000 |
JIS G7105 36CrNiMo4 Material Mechanical Properties
The mechanical properties of the JIS G7105 36CrNiMo4 steel are as follows:
| YieldRp0.2 | ≤ 939 (MPa) |
| TeileRm | ≤ 992 (MPa) |
| ImpactKV/Ku | 43(J) |
| ElongationA | 12% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 314 |
JIS G7105 36CrNiMo4 Material Thermal Properties
The thermal performance parameters of the JIS G7105 36CrNiMo4 steel are as follows:
| Temperature (°C) | 13 | 424 | 199 |
| Modulus of elasticity (GPa) | - | 593 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 33.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 213 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 124 |