ASTM A677 64F550 Introduce
Yield Strength: The yield strength indicates the amount of stress the steel can endure before permanent deformation occurs. ASTM A677 64F550 provides guidelines for the minimum yield strength required for this type of electrical steel.
Smelting temperature:1242°C - 1292°C
Application:Fully processed non-oriented electrical steel
ASTM A677 64F550 Material Mechanical Properties
The mechanical properties of the ASTM A677 64F550 steel are as follows:
| YieldRp0.2 | ≤ 559 (MPa) |
| TeileRm | ≤ 281 (MPa) |
| ImpactKV/Ku | 43(J) |
| ElongationA | 42% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 333 |
ASTM A677 64F550 Material Thermal Properties
The thermal performance parameters of the ASTM A677 64F550 steel are as follows:
| Temperature (°C) | 11 | 312 | 191 |
| Modulus of elasticity (GPa) | - | 466 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 141 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 331 |
| Poisson’s coefficient, ν | - | - | 323 |