ASTM A506 8740 Introduce
ASTM A506 8740 steel is commonly used in applications that require superior mechanical strength and ductility. It has a high strength-to-weight ratio and is known for its excellent impact and fatigue resistance, as well as its ability to withstand high temperatures. Its yield strength and tensile strength are both rated higher than most other carbon and low-alloy steels, making it ideal for a variety of applications.
Smelting temperature:1784°C - 1125°C
Application:Hot-rolled and cold-rolled alloy steel sheets and strips of regular quality and high quality structure
ASTM A506 8740 Material Chemical Composition
The chemical composition of the ASTM A506 8740 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1500 | 0.3000 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | 0.4000 | 0.7000 |
| Molybdenum (Mo) | 0.2000 | 0.3000 |
| Manganese (Mn) | 0.7500 | 1.0000 |
| Chromium (Cr) | 0.4000 | 0.6000 |
| Carbon (C) | 0.3800 | 0.4300 |
ASTM A506 8740 Material Mechanical Properties
The mechanical properties of the ASTM A506 8740 steel are as follows:
| YieldRp0.2 | ≤ 331 (MPa) |
| TeileRm | ≤ 287 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 123 |
ASTM A506 8740 Material Thermal Properties
The thermal performance parameters of the ASTM A506 8740 steel are as follows:
| Temperature (°C) | 24 | 793 | 144 |
| Modulus of elasticity (GPa) | - | 217 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 12 |
| Thermal conductivity (W/m·°C) | - | 44.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 231 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.32 | - | - |
| Deity (kg/dm³) | - | - | 132 |
| Poisson’s coefficient, ν | - | - | 121 |
ASTM A506 8740 Material Machining Technology
ASTM A506 8740 steel has several properties that make it ideal for fabricating and constructing a wide range of products and components. First, steel contains a high amount of carbon, which makes it harder than other materials. Additionally, it is ductile, which makes it more malleable and suitable for welding and bending into various shapes. ASTM A506 8740 steel also has a high resistance to corrosion, making it suitable for use in humid and wet conditions. Furthermore, the steel has excellent tensile strength, making it durable and resistant to wear and tear.