JIS G7105 41CrS4 Introduce
JIS G7105 41CrS4 is a Japanese Industrial Standard (JIS) steel grade that is used in a wide range of industrial applications. It is one of the most commonly used steels in Japan and is widely used in automotive, construction and other industries. The JIS G7105 standard covers a range of steel grades, ranging from low- to high-carbon grades, from low- to high-hardness grades and from low- to high-tensile grades. This makes it suitable for a wide range of applications, from simple structural components to highly stressed automotive and aerospace components.
Smelting temperature:1519°C - 1251°C
Application:Heat-treated steel, alloy steel, free-cutting steel - Part 18: Bright alloy steel and low alloy steel
JIS G7105 41CrS4 Material Chemical Composition
The chemical composition of the JIS G7105 41CrS4 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1000 | 0.4000 |
| Sulfur (S) | 0.0200 | 0.0400 |
| PhOsphorus (P) | - | 0.0350 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Chromium (Cr) | 0.9000 | 1.2000 |
| Carbon (C) | 0.3800 | 0.4500 |
JIS G7105 41CrS4 Material Mechanical Properties
The mechanical properties of the JIS G7105 41CrS4 steel are as follows:
| YieldRp0.2 | ≤ 855 (MPa) |
| TeileRm | ≤ 162 (MPa) |
| ImpactKV/Ku | 34(J) |
| ElongationA | 24% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 214 |
JIS G7105 41CrS4 Material Thermal Properties
The thermal performance parameters of the JIS G7105 41CrS4 steel are as follows:
| Temperature (°C) | 44 | 131 | 981 |
| Modulus of elasticity (GPa) | - | 479 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 14 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 24.2 |
| Specific thermal capacity (J/kg·°C) | - | 222 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 322 |
| Poisson’s coefficient, ν | - | - | 121 |