ASTM A508/A508M Grade 6 Introduce
ASTM A508/A508M Grade 6 is a high-quality alloy steel with unique chemical properties that make it ideal for a variety of applications, such as pressure vessels, construction, bridges, and storage tanks. It has excellent weldability, ductility, machinability, heat treatability, corrosion resistance, and impact resistance. ASTM A508/A508M Grade 6 can be easily welded with any type of welding method and is easy to heat treat for any specific mechanical requirements.
Smelting temperature:1338°C - 1654°C
Application:Carbon steel and alloy steel forgings for quenching and tempering vacuum treatment of pressure vessels
ASTM A508/A508M Grade 6 Material Chemical Composition
The chemical composition of the ASTM A508/A508M Grade 6 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Vanadium (V) | - | 0.0500 |
| Titanium (Ti) | - | 0.0150 |
| Silicon (Si) | - | 0.3500 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | 0.7500 | 0.9500 |
| Molybdenum (Mo) | 0.3000 | 0.4500 |
| Manganese (Mn) | 0.7500 | 1.1500 |
| Copper (Cu) | - | 0.2500 |
| Chromium (Cr) | 0.7000 | 1.0000 |
| (Cb) | - | 0.0100 |
| Calcium (Ca) | - | 0.0150 |
| Carbon (C) | 0.2800 | 0.3300 |
| Boron (B) | - | 0.0030 |
| Aluminum (Al) | - | 0.0250 |
ASTM A508/A508M Grade 6 Material Mechanical Properties
The mechanical properties of the ASTM A508/A508M Grade 6 steel are as follows:
| YieldRp0.2 | ≤ 192 (MPa) |
| TeileRm | ≤ 682 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 14% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 332 |
ASTM A508/A508M Grade 6 Material Thermal Properties
The thermal performance parameters of the ASTM A508/A508M Grade 6 steel are as follows:
| Temperature (°C) | 13 | 934 | 971 |
| Modulus of elasticity (GPa) | - | 198 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 22 |
| Thermal conductivity (W/m·°C) | - | 14.3 | 31.2 |
| Specific thermal capacity (J/kg·°C) | - | 133 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.41 | - | - |
| Deity (kg/dm³) | - | - | 222 |
| Poisson’s coefficient, ν | - | - | 133 |