ASTM A514/A514M A514 Grade J Introduce
ASTM A514/A514M A514 Grade J is a quenched and tempered high strength alloy steel plate. It has low carbon content and provides excellent weldability, making it an ideal choice for many applications ranging from bridge and building construction to agriculture and oil and gas industry. With its excellent mechanical properties and high impact strength, ASTM A514/A514M A514 Grade J is the ideal choice for many high strength applications.
Smelting temperature:1632°C - 1951°C
Application:High yield strength alloy steel plate for tempering and quenching for welding
ASTM A514/A514M A514 Grade J Material Chemical Composition
The chemical composition of the ASTM A514/A514M A514 Grade J steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.2000 | 0.3500 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Molybdenum (Mo) | 0.5000 | 0.6500 |
| Manganese (Mn) | 0.4500 | 0.7000 |
| Carbon (C) | 0.1200 | 0.2100 |
| Boron (B) | 0.0010 | 0.0050 |
ASTM A514/A514M A514 Grade J Material Mechanical Properties
ASTM A514/A514M A514 Grade J steel has a high-yield strength, good weldability and excellent toughness, which makes it well-suited for a wide range of applications. It has a minimum yield strength of 100 ksi (690 MPa) and a minimum tensile strength of 110-130 ksi (760-900 MPa).
The mechanical properties of the ASTM A514/A514M A514 Grade J steel are as follows:
| YieldRp0.2 | 752 (≥)(MPa) |
| TeileRm | 452 (≥)(MPa) |
| ImpactKV/Ku | 41(J) |
| ElongationA | 42% |
| Reduction in cross section on fractureZ | 41% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 412 |
ASTM A514/A514M A514 Grade J Material Thermal Properties
The thermal performance parameters of the ASTM A514/A514M A514 Grade J steel are as follows:
| Temperature (°C) | 24 | 258 | 379 |
| Modulus of elasticity (GPa) | - | 584 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 332 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.12 | - | - |
| Deity (kg/dm³) | - | - | 243 |
| Poisson’s coefficient, ν | - | - | 133 |
ASTM A514/A514M A514 Grade J Material Machining Technology
The machining of ASTM A514/A514M A514 Grade J 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 J 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.