DIN 1651 9SMnPb28 Introduce
DIN 1651 9SMnPb28 is an ideal material for components subjected to high temperature fluctuations and thermal cycling. The material has a high thermal conductivity and a low coefficient of thermal expansion, ensuring minimal dimensional changes in components machined from it. In addition, the material has a high melting point and low oxidation properties, making it an ideal choice for components subjected to aggressive conditions.
Smelting temperature:1558°C - 1321°C
Application:Free-cutting steels; technical delivery conditions
DIN 1651 9SMnPb28 Material Chemical Composition
The chemical composition of the DIN 1651 9SMnPb28 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.0500 |
| Sulfur (S) | 0.2700 | 0.3300 |
| Lead (Pb) | 0.1500 | 0.3500 |
| PhOsphorus (P) | - | 0.1000 |
| Manganese (Mn) | 0.9000 | 1.3000 |
| Carbon (C) | - | 0.1400 |
DIN 1651 9SMnPb28 Material Mechanical Properties
The mechanical properties of the DIN 1651 9SMnPb28 steel are as follows:
| YieldRp0.2 | ≤ 714 (MPa) |
| TeileRm | ≤ 884 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 43% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 212 |
DIN 1651 9SMnPb28 Material Thermal Properties
The thermal performance parameters of the DIN 1651 9SMnPb28 steel are as follows:
| Temperature (°C) | 13 | 439 | 415 |
| Modulus of elasticity (GPa) | - | 973 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 41 |
| Thermal conductivity (W/m·°C) | - | 44.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 324 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.21 | - | - |
| Deity (kg/dm³) | - | - | 224 |
| Poisson’s coefficient, ν | - | - | 443 |