ASTM A677 64F225 Introduce
The mechanical properties of ASTM A677 64F225 vary, depending on its exact composition. Generally speaking, it has a tensile strength of at least 845 MPa, with yield strengths ranging from 690-850 MPa. The steel is also hard and has good corrosion resistance, making it suitable for a variety of applications. It is also very ductile, ASTM A677 64F225 can be heat treated to further improve its mechanical properties. It can be quenched, tempered, and annealed in order to achieve the desired properties. Quenching and tempering can result in an increased yield strength of up to 1300 MPa, while annealing can improve the steel's ductility and toughness.
Smelting temperature:1179°C - 1278°C
Application:Fully processed non-oriented electrical steel
ASTM A677 64F225 Material Mechanical Properties
The mechanical properties of the ASTM A677 64F225 steel are as follows:
| YieldRp0.2 | ≤ 539 (MPa) |
| TeileRm | ≤ 799 (MPa) |
| ImpactKV/Ku | 11(J) |
| ElongationA | 12% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 331 |
ASTM A677 64F225 Material Thermal Properties
The thermal performance parameters of the ASTM A677 64F225 steel are as follows:
| Temperature (°C) | 34 | 841 | 573 |
| Modulus of elasticity (GPa) | - | 452 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 31.2 |
| Specific thermal capacity (J/kg·°C) | - | 134 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.14 | - | - |
| Deity (kg/dm³) | - | - | 342 |
| Poisson’s coefficient, ν | - | - | 312 |