ASTM A686 Type W2-9.5 Grade A Introduce
ASTM A686 Type W2-9.5 Grade A steel is a highly versatile and reliable steel that is suitable for a range of industrial and engineering applications. Not only does it have excellent strength, hardness, and ductility properties, but it also has excellent fatigue resistance. It is commonly used in industrial and engineering applications, thanks to its combination of strength, ductility, and machinability, as well as its stability under extreme temperatures. Its high strength and low cost has made it a popular choice in many manufacturing processes, particularly for parts that must withstand harsh working environments or those that require a particular degree of flexibility and strength.
Smelting temperature:1761°C - 1774°C
Application:Carbon tool steel
ASTM A686 Type W2-9.5 Grade A Material Chemical Composition
The chemical composition of the ASTM A686 Type W2-9.5 Grade A steel are as follows:
| Element | Min | Max |
|---|---|---|
| Tungsten (W) | - | 0.1500 |
| Vanadium (V) | 0.1500 | 0.3500 |
| Silicon (Si) | 0.1000 | 0.4000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| Nickel (Ni) | - | 0.2000 |
| Molybdenum (Mo) | - | 0.1500 |
| Manganese (Mn) | 0.1000 | 0.4000 |
| Copper (Cu) | - | 0.2000 |
| Chromium (Cr) | - | 0.1500 |
| Carbon (C) | 0.9500 | 1.1000 |
ASTM A686 Type W2-9.5 Grade A Material Mechanical Properties
The mechanical properties of the ASTM A686 Type W2-9.5 Grade A steel are as follows:
| YieldRp0.2 | ≤ 265 (MPa) |
| TeileRm | ≤ 227 (MPa) |
| ImpactKV/Ku | 44(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 22% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 212 |
ASTM A686 Type W2-9.5 Grade A Material Thermal Properties
The thermal performance parameters of the ASTM A686 Type W2-9.5 Grade A steel are as follows:
| Temperature (°C) | 33 | 688 | 339 |
| Modulus of elasticity (GPa) | - | 559 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 24 |
| Thermal conductivity (W/m·°C) | - | 33.3 | 31.2 |
| Specific thermal capacity (J/kg·°C) | - | 132 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 431 |
| Poisson’s coefficient, ν | - | - | 222 |