ASTM A514/A514M A514 Grade Q Introduce
ASTM A514/A514M A514 Grade Qs provide good mechanical properties and are designed to satisfy a wide range of applications. The steel is tough and resistant to wear, making it suitable for both heavy-duty and light-duty uses. It generally exhibits good weldability and is relatively low in cost. The steel is also easily machined and can be formed into different shapes and sizes.
Smelting temperature:1523°C - 1288°C
Application:High yield strength alloy steel plate for tempering and quenching for welding
ASTM A514/A514M A514 Grade Q Material Chemical Composition
The chemical composition of the ASTM A514/A514M A514 Grade Q steel are as follows:
| Element | Min | Max |
|---|---|---|
| Vanadium (V) | 0.0300 | 0.0800 |
| Silicon (Si) | 0.1500 | 0.3500 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | 1.2000 | 1.5000 |
| Molybdenum (Mo) | 0.4000 | 0.6000 |
| Manganese (Mn) | 0.9500 | 1.3000 |
| Chromium (Cr) | 1.0000 | 1.5000 |
| Carbon (C) | 0.1400 | 0.2100 |
ASTM A514/A514M A514 Grade Q Material Mechanical Properties
The mechanical properties of ASTM A514/A514M A514 Grade Q steel include yield strength, tensile strength, and elongation. The yield strength is the most important property and tends to be around 100 ksi (690 MPa). Additionally, the tensile strength is typically about 120 ksi (830 MPa), and the elongation can be as high as 21%. The cold-forming characteristics of the steel also make it easier to weld, machine, and work.
The mechanical properties of the ASTM A514/A514M A514 Grade Q steel are as follows:
| YieldRp0.2 | 627 (≥)(MPa) |
| TeileRm | 712 (≥)(MPa) |
| ImpactKV/Ku | 33(J) |
| ElongationA | 41% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 211 |
ASTM A514/A514M A514 Grade Q Material Thermal Properties
The thermal performance parameters of the ASTM A514/A514M A514 Grade Q steel are as follows:
| Temperature (°C) | 22 | 242 | 286 |
| Modulus of elasticity (GPa) | - | 878 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 433 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.23 | - | - |
| Deity (kg/dm³) | - | - | 112 |
| Poisson’s coefficient, ν | - | - | 411 |
ASTM A514/A514M A514 Grade Q Material Machining Technology
The machining of ASTM A514/A514M A514 Grade Q steel is a process that must be done with the utmost precision and care. By following the recommended prepping process and utilizing the correct tools and cutting speeds, the machining of ASTM A514/A514M A514 Grade Q steel can be done efficiently and safely. This steel is often used in construction, mining, and agricultural equipment, and it is important that it be machined properly to ensure its strength and reliability.