DIN 1651 9SPb23 Introduce
DIN 1651 9SPb23 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:1338°C - 1579°C
Application:Free-cutting steels; technical delivery conditions
DIN 1651 9SPb23 Material Chemical Composition
The chemical composition of the DIN 1651 9SPb23 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Sulfur (S) | 0.2000 | 0.2700 |
| Lead (Pb) | 0.1500 | 0.3000 |
| PhOsphorus (P) | 0.0350 | 0.1000 |
| Manganese (Mn) | 0.5000 | 0.9000 |
| Carbon (C) | - | 0.1200 |
DIN 1651 9SPb23 Material Mechanical Properties
The mechanical properties of the DIN 1651 9SPb23 steel are as follows:
| YieldRp0.2 | ≤ 978 (MPa) |
| TeileRm | ≤ 137 (MPa) |
| ImpactKV/Ku | 34(J) |
| ElongationA | 33% |
| Reduction in cross section on fractureZ | 22% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 434 |
DIN 1651 9SPb23 Material Thermal Properties
The thermal performance parameters of the DIN 1651 9SPb23 steel are as follows:
| Temperature (°C) | 42 | 624 | 554 |
| Modulus of elasticity (GPa) | - | 216 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 34 |
| Thermal conductivity (W/m·°C) | - | 21.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 412 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.23 | - | - |
| Deity (kg/dm³) | - | - | 421 |
| Poisson’s coefficient, ν | - | - | 441 |