ASTM A108 1215 Introduce
ASTM A108 1215 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:1826°C - 1195°C
Application:High-quality cold-worked carbon steel bar technical specifications
ASTM A108 1215 Material Chemical Composition
The chemical composition of the ASTM A108 1215 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Sulfur (S) | 0.2600 | 0.3500 |
| PhOsphorus (P) | 0.0400 | 0.0900 |
| Manganese (Mn) | 0.7500 | 1.0500 |
| Carbon (C) | - | 0.0900 |
ASTM A108 1215 Material Mechanical Properties
The mechanical properties of the ASTM A108 1215 steel are as follows:
| YieldRp0.2 | ≤ 313 (MPa) |
| TeileRm | ≤ 968 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 42% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 414 |
ASTM A108 1215 Material Thermal Properties
The thermal performance parameters of the ASTM A108 1215 steel are as follows:
| Temperature (°C) | 44 | 258 | 549 |
| Modulus of elasticity (GPa) | - | 694 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 43.3 | 12.2 |
| Specific thermal capacity (J/kg·°C) | - | 231 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.11 | - | - |
| Deity (kg/dm³) | - | - | 134 |
| Poisson’s coefficient, ν | - | - | 323 |