ASTM A108 1144 Introduce
ASTM A108 1144 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:1538°C - 1587°C
Application:High-quality cold-worked carbon steel bar technical specifications
ASTM A108 1144 Material Chemical Composition
The chemical composition of the ASTM A108 1144 steel are as follows:
| Element | Min | Max |
|---|---|---|
| PhOsphorus (P) | - | 0.0400 |
| Sulfur (S) | 0.2400 | 0.3300 |
| Manganese (Mn) | 1.3500 | 1.6500 |
| Silicon (Si) | 0.1500 | 0.3500 |
| Carbon (C) | 0.4000 | 0.4800 |
ASTM A108 1144 Material Mechanical Properties
The mechanical properties of the ASTM A108 1144 steel are as follows:
| YieldRp0.2 | ≤ 793 (MPa) |
| TeileRm | ≤ 355 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 22% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 331 |
ASTM A108 1144 Material Thermal Properties
The thermal performance parameters of the ASTM A108 1144 steel are as follows:
| Temperature (°C) | 42 | 725 | 245 |
| Modulus of elasticity (GPa) | - | 447 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 23 |
| Thermal conductivity (W/m·°C) | - | 14.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 234 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.14 | - | - |
| Deity (kg/dm³) | - | - | 211 |
| Poisson’s coefficient, ν | - | - | 144 |