ASTM A656/A656M 415-Ⅲ Introduce
The mechanical properties of ASTM A656/A656M 415-Ⅲ steel make it a great choice for many applications. It has higher tensile strength and creep resistance than other steels and is often used in structural applications. The yield strength of ASTM A656/A656M 415-Ⅲ steel is 380 MPa and the tensile strength is 490-620 MPa. It has good toughness down to -20° C, which makes it suitable for use in a wide range of temperatures.
Smelting temperature:1376°C - 1347°C
Application:High-strength low-alloy hot-rolled structural steel plate with improved forgeability
ASTM A656/A656M 415-Ⅲ Material Chemical Composition
The chemical composition of the ASTM A656/A656M 415-Ⅲ steel are as follows:
| Element | Min | Max |
|---|---|---|
| Copper (Cu) | 0.0080 | 0.1000 |
| Vanadium (V) | - | 0.0800 |
| Nickel (Ni) | - | 0.0200 |
| PhOsphorus (P) | - | 0.0250 |
| Sulfur (S) | - | 0.0350 |
| Manganese (Mn) | - | 1.6500 |
| Silicon (Si) | - | 0.6000 |
| Carbon (C) | - | 0.1800 |
| Niobium (Nb) | 0.0050 | 0.1500 |
ASTM A656/A656M 415-Ⅲ Material Mechanical Properties
ASTM A656/A656M 415-Ⅲ steel is a type of hot-rolled structural steel that is widely used for applications requiring high strength and good formability. It has excellent strength and ductility, making it suitable for a variety of applications, from bridges and construction to shipbuilding and industrial equipment.
The mechanical properties of the ASTM A656/A656M 415-Ⅲ steel are as follows:
| YieldRp0.2 | ≤ 496 (MPa) |
| TeileRm | ≤ 222 (MPa) |
| ImpactKV/Ku | 24(J) |
| ElongationA | 23% |
| Reduction in cross section on fractureZ | 11% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 423 |
ASTM A656/A656M 415-Ⅲ Material Thermal Properties
The thermal performance parameters of the ASTM A656/A656M 415-Ⅲ steel are as follows:
| Temperature (°C) | 33 | 244 | 137 |
| Modulus of elasticity (GPa) | - | 778 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 14 |
| Thermal conductivity (W/m·°C) | - | 23.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 413 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.21 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 322 |
ASTM A656/A656M 415-Ⅲ Material Machining Technology
ASTM A656/A656M 415-Ⅲ is highly formable and can be readily welded, machined, and cold worked. It easily bends, curves, and can be cut to the required size and shape. It is possible that an increased amount of formability may be available in ASTM A656/A656M 415-Ⅲ as compared to standard carbon steels.