ASTM A517/A517M A517 Grade J Introduce
ASTM A517/A517M A517 Grade J is a low-alloy, high-strength steel plate with a tensile range of 110-130 ksi (758 - 896 MPa). The plate's thickness usually ranges from 5/16" to 2", with a minimum yield strength of 65 ksi (448 MPa). ASTM A517/A517M A517 Grade J steel is designed for use in pressure vessels and boilers in applications that require higher strength and improved toughness and weldability.
Smelting temperature:1261°C - 1443°C
Application:Tempered and quenched high-strength alloy steel sheets for pressure vessels
ASTM A517/A517M A517 Grade J Material Chemical Composition
The chemical composition of the ASTM A517/A517M A517 Grade J steel are as follows:
| Element | Min | Max |
|---|---|---|
| Boron (B) | 0.0010 | 0.0050 |
| Molybdenum (Mo) | 0.5000 | 0.6500 |
| PhOsphorus (P) | - | 0.0350 |
| Sulfur (S) | - | 0.0350 |
| Manganese (Mn) | 0.4500 | 0.7000 |
| Silicon (Si) | 0.2000 | 0.3000 |
| Carbon (C) | 0.1200 | 0.2100 |
| Silicon (Si) | 0.2000 | 0.3500 |
ASTM A517/A517M A517 Grade J Material Mechanical Properties
ASTM A517/A517M A517 Grade J steel has excellent mechanical properties due to its combination of specified chemical composition and processing controls used during hot-forming and cold-working. The tensile strength of the material is in the range of 115-135 ksi, and its yield strength is in the range of 75-100 ksi. The material also exhibits excellent ductility, with an elongation range of 16-25%, and a reduction of area of 45-55%.
The mechanical properties of the ASTM A517/A517M A517 Grade J steel are as follows:
| YieldRp0.2 | ≤ 748 (MPa) |
| TeileRm | ≤ 358 (MPa) |
| ImpactKV/Ku | 33(J) |
| ElongationA | 23% |
| Reduction in cross section on fractureZ | 13% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 441 |
ASTM A517/A517M A517 Grade J Material Thermal Properties
The thermal performance parameters of the ASTM A517/A517M A517 Grade J steel are as follows:
| Temperature (°C) | 41 | 381 | 859 |
| Modulus of elasticity (GPa) | - | 775 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 24 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 422 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.23 | - | - |
| Deity (kg/dm³) | - | - | 241 |
| Poisson’s coefficient, ν | - | - | 441 |
ASTM A517/A517M A517 Grade J Material Machining Technology
ASTM A517/A517M A517 Grade J steel is a low-alloy quenched and tempered high-strength steel that has been used in a variety of applications, such as bridges, rail cars, off-highway vehicles, pressure vessels, and other structures where high strength and improved cold working properties are required.