ASTM A108 12L15 Introduce
Tensile Strength: The minimum tensile strength of the carbon steel bars as specified by ASTM A108 12L15 represents their ability to resist pulling forces without breaking or experiencing deformation.
Yield Strength: ASTM A108 12L15 provides guidelines for the minimum yield strength required for these carbon steel bars. The yield strength indicates the stress level at which permanent deformation begins.
Elongation: Elongation measures the ability of the material to stretch before fracturing. ASTM A108 12L15 defines the minimum elongation percentage that the bars should exhibit.
Smelting temperature:1839°C - 1152°C
Application:High-quality cold-worked carbon steel bar technical specifications
ASTM A108 12L15 Material Chemical Composition
The chemical composition of the ASTM A108 12L15 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Lead (Pb) | 0.1500 | 0.3500 |
| PhOsphorus (P) | 0.0400 | 0.0900 |
| Sulfur (S) | 0.2600 | 0.3500 |
| Manganese (Mn) | 0.7500 | 1.0500 |
| Silicon (Si) | 0.1500 | 0.3500 |
| Carbon (C) | - | 0.0900 |
ASTM A108 12L15 Material Mechanical Properties
The mechanical properties of the ASTM A108 12L15 steel are as follows:
| YieldRp0.2 | ≤ 398 (MPa) |
| TeileRm | ≤ 192 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 33% |
| Reduction in cross section on fractureZ | 41% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 143 |
ASTM A108 12L15 Material Thermal Properties
The thermal performance parameters of the ASTM A108 12L15 steel are as follows:
| Temperature (°C) | 31 | 173 | 769 |
| Modulus of elasticity (GPa) | - | 468 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 44 |
| Thermal conductivity (W/m·°C) | - | 31.3 | 24.2 |
| Specific thermal capacity (J/kg·°C) | - | 324 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.14 | - | - |
| Deity (kg/dm³) | - | - | 122 |
| Poisson’s coefficient, ν | - | - | 231 |