ASTM A108 1040 Introduce
ASTM A108 1040 addresses the hardness and surface condition of cold-finished carbon steel bars. manufacturers can ensure that the cold-finished carbon steel bars meet the necessary mechanical and surface property requirements for their intended applications. These bars play a crucial role in a wide range of engineering and structural applications where strength, durability, and dimensional precision are essential.
Smelting temperature:1823°C - 1341°C
Application:High-quality cold-worked carbon steel bar technical specifications
ASTM A108 1040 Material Mechanical Properties
The mechanical properties of the ASTM A108 1040 steel are as follows:
| YieldRp0.2 | ≤ 467 (MPa) |
| TeileRm | ≤ 835 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 12% |
| Reduction in cross section on fractureZ | 11% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 144 |
ASTM A108 1040 Material Thermal Properties
The thermal performance parameters of the ASTM A108 1040 steel are as follows:
| Temperature (°C) | 43 | 447 | 879 |
| Modulus of elasticity (GPa) | - | 995 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 13 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 11.2 |
| Specific thermal capacity (J/kg·°C) | - | 224 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.43 | - | - |
| Deity (kg/dm³) | - | - | 121 |
| Poisson’s coefficient, ν | - | - | 433 |