GB QT450-10 GB/T 1348 Introduction
Our company has established long-term and stable cooperative relations with China Iron and Steel Association, Iron and Steel Association and iron and steel enterprises all over the year, ensuring the production of high-quality GB QT450-10 GB/T 1348 steel and giving preferential prices. Our GB QT450-10 GB/T 1348 steel products are exported to more than 70 countries and regions overseas and have received good reviews.
Application: Ductile iron castings.
Heat treated: 1954°C - 1279°C.
GB QT450-10 GB/T 1348 Mechanical Properties
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 314 (≥) | 492 (≥) | 12 | 32 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 322 |
GB QT450-10 GB/T 1348 Physical Properties
The GB QT450-10 GB/T 1348 material physical properties shall comply with the values given in the following table.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 23 | - | - | 0.11 | - | |||
| 616 | 256 | - | 34.3 | 413 | - | ||
| 438 | - | 32 | 21.2 | 412 | 112 |
