ASTM A322 A322 48L15 Introduce
ASTM A322 A322 48L15 is one of the most versatile and commonly used steel grades used in a wide variety of applications. The mechanical properties of the steel allow it to be used in automotive components, machine parts, construction and agricultural equipment parts, pressure vessels, wear parts, blades, and many other types of applications. The steel is also suitable for use in fabrication, airframes, and hardware.
Smelting temperature:1234°C - 1171°C
Application:Alloy steel bar. Level
ASTM A322 A322 48L15 Material Chemical Composition
The chemical composition of the ASTM A322 A322 48L15 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1500 | 0.3500 |
| Sulfur (S) | - | 0.0400 |
| Lead (Pb) | 0.1500 | 0.3500 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | 3.2500 | 3.7500 |
| Molybdenum (Mo) | 0.2000 | 0.3000 |
| Manganese (Mn) | 0.4000 | 0.6000 |
| Copper (Cu) | - | 0.3500 |
| Chromium (Cr) | - | 0.2000 |
| Carbon (C) | 0.1300 | 0.2000 |
ASTM A322 A322 48L15 Material Mechanical Properties
ASTM A322 A322 48L15 is a unique steel alloy with excellent chemical, thermal, and mechanical properties. It is primarily used for large scale machines and high-performance automotive components due to its excellent strength-to-weight ratio, fatigue resistance, and machineability. Additionally, its low sulfur and phosphorus content make it less susceptible to oxidation and corrosion, and its low coefficient of thermal expansion ensures components remain fully functional in changing temperatures. As a result, ASTM A322 A322 48L15 is one of the most versatile and widely used grades for mechanical components in many industries.
The mechanical properties of the ASTM A322 A322 48L15 steel are as follows:
| YieldRp0.2 | ≤ 732 (MPa) |
| TeileRm | ≤ 118 (MPa) |
| ImpactKV/Ku | 13(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 214 |
ASTM A322 A322 48L15 Material Thermal Properties
The thermal performance parameters of the ASTM A322 A322 48L15 steel are as follows:
| Temperature (°C) | 13 | 129 | 574 |
| Modulus of elasticity (GPa) | - | 646 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 11 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 214 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.11 | - | - |
| Deity (kg/dm³) | - | - | 144 |
| Poisson’s coefficient, ν | - | - | 242 |
ASTM A322 A322 48L15 Material Machining Technology
ASTM A322 A322 48L15 is a low-carbon, alloy steel that is typically used for applications requiring higher strength, toughness, and wear resistance. The main alloying elements in the steel are manganese and molybdenum, which together give it superior strength-to-weight ratios. The steel has a hardness between 280 and 350 Brinell, and is generally easily weldable, though preheating or postheating may be necessary in some cases. It is also relatively resistant to corrosion, making it suitable for use in environmentally corrosive environments.