ASTM A108 1145 Introduce
ASTM A108 1145 is a specification standard established by ASTM International for cold-finished carbon steel bars. This standard covers a wide range of carbon steel bar products that have undergone cold working processes, resulting in improved dimensional accuracy, surface finish, and mechanical properties.
Smelting temperature:1832°C - 1238°C
Application:High-quality cold-worked carbon steel bar technical specifications
ASTM A108 1145 Material Chemical Composition
The chemical composition of the ASTM A108 1145 steel are as follows:
| Element | Min | Max |
|---|---|---|
| PhOsphorus (P) | - | 0.0400 |
| Sulfur (S) | 0.0400 | 0.0700 |
| Manganese (Mn) | 0.7000 | 1.0000 |
| Silicon (Si) | 0.1500 | 0.3500 |
| Carbon (C) | 0.4200 | 0.4900 |
ASTM A108 1145 Material Mechanical Properties
The mechanical properties of the ASTM A108 1145 steel are as follows:
| YieldRp0.2 | ≤ 697 (MPa) |
| TeileRm | ≤ 349 (MPa) |
| ImpactKV/Ku | 43(J) |
| ElongationA | 43% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 224 |
ASTM A108 1145 Material Thermal Properties
The thermal performance parameters of the ASTM A108 1145 steel are as follows:
| Temperature (°C) | 21 | 663 | 838 |
| Modulus of elasticity (GPa) | - | 472 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 11 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 433 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 223 |
| Poisson’s coefficient, ν | - | - | 233 |