DIN 17230 100CrMnMo8 Introduce
DIN 17230 100CrMnMo8 is a low-carbon high-strength steel that is used in a variety of engineering applications. It is made primarily of iron with a few other elements present in smaller amounts, which give it excellent corrosion resistance and fatigue strength. The steel is typically heat treated before being used in the manufacturing process to increase its strength and hardness. It is used in a variety of industries such as automotive, aerospace, heavy construction, and offshore drilling rigs, and it is an ideal choice for components that require high-strength but also need to be lightweight.
Smelting temperature:1855°C - 1513°C
Application:Ball and Roller Bearing Steels; Technical Conditions of Delivery
DIN 17230 100CrMnMo8 Material Chemical Composition
The chemical composition of the DIN 17230 100CrMnMo8 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.4000 | 0.6000 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0300 |
| Nickel (Ni) | - | 0.3000 |
| Molybdenum (Mo) | 0.5000 | 0.6000 |
| Manganese (Mn) | 0.8000 | 1.1000 |
| Copper (Cu) | - | 0.3000 |
| Chromium (Cr) | 1.8000 | 2.0500 |
| Carbon (C) | 0.9000 | 1.0500 |
DIN 17230 100CrMnMo8 Material Mechanical Properties
The mechanical properties of the DIN 17230 100CrMnMo8 steel are as follows:
| YieldRp0.2 | ≤ 451 (MPa) |
| TeileRm | ≤ 255 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 14% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 432 |
DIN 17230 100CrMnMo8 Material Thermal Properties
The thermal performance parameters of the DIN 17230 100CrMnMo8 steel are as follows:
| Temperature (°C) | 41 | 516 | 185 |
| Modulus of elasticity (GPa) | - | 724 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 13 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 21.2 |
| Specific thermal capacity (J/kg·°C) | - | 321 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 224 |
| Poisson’s coefficient, ν | - | - | 334 |