ASTM A686 Type W1-8.5 Grade A Introduce
ASTM A686 Type W1-8.5 Grade A has a high strength-to-weight ratio and can be cold drawn or hot worked, depending on the application. It is often used in the production of bridges, automobiles, construction materials, pipe components, and other metals. It is also widely used in the manufacture of heavy-duty machinery, such as agricultural equipment, off-road vehicles, and large construction equipment. Its high-strength makes it an ideal choice for applications where the metal needs to be cut or formed into shapes.In addition to its strength and wear resistance, ASTM A686 Type W1-8.5 Grade A is also resistant to high temperatures, making it suitable for higher temperature settings. This steel also has excellent properties for welding, making it an ideal choice for welding applications. Its good machinability makes it ideal for cutting and machining, as well as for finishing operations.
Smelting temperature:1427°C - 1451°C
Application:Carbon tool steel
ASTM A686 Type W1-8.5 Grade A Material Chemical Composition
The chemical composition of the ASTM A686 Type W1-8.5 Grade A steel are as follows:
| Element | Min | Max |
|---|---|---|
| Tungsten (W) | - | 0.1500 |
| Vanadium (V) | - | 0.1000 |
| Silicon (Si) | 0.1000 | 0.4000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| Nickel (Ni) | - | 0.2000 |
| Molybdenum (Mo) | - | 0.1000 |
| Manganese (Mn) | 0.1000 | 0.4000 |
| Copper (Cu) | - | 0.2000 |
| Chromium (Cr) | - | 0.1500 |
| Carbon (C) | 0.8500 | 0.9500 |
ASTM A686 Type W1-8.5 Grade A Material Mechanical Properties
The mechanical properties of the ASTM A686 Type W1-8.5 Grade A steel are as follows:
| YieldRp0.2 | ≤ 714 (MPa) |
| TeileRm | ≤ 348 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 243 |
ASTM A686 Type W1-8.5 Grade A Material Thermal Properties
The thermal performance parameters of the ASTM A686 Type W1-8.5 Grade A steel are as follows:
| Temperature (°C) | 14 | 462 | 763 |
| Modulus of elasticity (GPa) | - | 163 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 34.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 233 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 132 |
| Poisson’s coefficient, ν | - | - | 242 |