ASTM A322 A322 8655 Introduce
ASTM A322 A322 8655 is a versatile steel alloy used in many structural and other applications. Its mechanical properties and versatility make it a popular choice among engineers and designers, who often utilize its heat treatment properties to optimize its performance in many applications. Its broad range of chemical composition and unique mechanical properties make it a popular material choice in a number of industries.
Smelting temperature:1286°C - 1539°C
Application:Alloy steel bar. Level
ASTM A322 A322 8655 Material Chemical Composition
The chemical composition of the ASTM A322 A322 8655 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Copper (Cu) | - | 0.3500 |
| Aluminum (Al) | - | 0.0600 |
| Molybdenum (Mo) | 0.1500 | 0.2500 |
| Nickel (Ni) | 0.4000 | 0.7000 |
| Chromium (Cr) | 0.4000 | 0.6000 |
| PhOsphorus (P) | - | 0.0350 |
| Sulfur (S) | - | 0.0400 |
| Manganese (Mn) | 0.7500 | 1.0000 |
| Silicon (Si) | 0.1500 | 0.3500 |
| Carbon (C) | 0.5100 | 0.5900 |
ASTM A322 A322 8655 Material Mechanical Properties
The mechanical properties of ASTM A322 A322 8655 steels are largely dependent on their chemical composition, as well as the heat treating processes utilized. Generally speaking, the higher the carbon content, the higher the tensile strength and lower the ductility. The mechanical strength of the material increases by up to 20% with even small increments in carbon content. This makes ASTM A322 A322 8655 a suitable choice for many structural applications.
The mechanical properties of the ASTM A322 A322 8655 steel are as follows:
| YieldRp0.2 | ≤ 335 (MPa) |
| TeileRm | ≤ 545 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 12% |
| Reduction in cross section on fractureZ | 42% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 412 |
ASTM A322 A322 8655 Material Thermal Properties
The thermal performance parameters of the ASTM A322 A322 8655 steel are as follows:
| Temperature (°C) | 21 | 921 | 324 |
| Modulus of elasticity (GPa) | - | 273 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 22 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 333 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.23 | - | - |
| Deity (kg/dm³) | - | - | 411 |
| Poisson’s coefficient, ν | - | - | 334 |
ASTM A322 A322 8655 Material Machining Technology
ASTM A322 A322 8655 steel does not present any real welding difficulties, and can be easily welded using commercial welding procedures without the need for pre- or post- heating. This attribute is beneficial in construction projects, as it can help to reduce costs and lead times.