ASTM A656 Type 7 Grade 50 ASTM A656/A656M
Low-Alloy High-Strength plate steel Product Introduction
ASTM A656 Type 7 Grade 50 ASTM A656/A656M is a high-strength, low-alloy steel plate used in a variety of structural applications. This standard is managed by the American Society for Testing and Materials (ASTM). This steel plate is known for its strength, excellent tensile and yield strength and superior resistance to brittle fractures. It has become the most popular choice for heavy equipment, architectural, and engineering applications.
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Application: High-strength low-alloy hot-rolled structural steel plate with improved forgeability.
Heat treated: 1615°C - 1652°C.
Low-Alloy High-Strength plate Product Details
ASTM A656 Type 7 Grade 50 ASTM A656/A656M Chemical Element
The main chemical composition of ASTM A656 Type 7 Grade 50 ASTM A656/A656M includes carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, and molybdenum. Because of its high strength, ASTM A656 Type 7 Grade 50 ASTM A656/A656M is most suitable for structural applications that require high strength. It is also used in applications requiring robust weldability, such as bridge construction and heavy structural components.
ASTM A656 Type 7 Grade 50 ASTM A656/A656M is an alloy of iron and carbon and other elements. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, automobiles, machines, appliances. The ASTM A656 Type 7 Grade 50 ASTM A656/A656M chemical composition determined by ladle analysis shall comply with the specified values of the following table.
| Element | Min | Max | Similar |
|---|---|---|---|
| C | - | 0.1800 | - |
| Mn | - | 1.6500 | - |
| P | - | 0.0250 | - |
| S | - | 0.0300 | - |
| Si | - | 0.6000 | - |
| V | - | 0.1500 | - |
| N | - | 0.0300 | - |
| Nb | - | 0.1000 | - |
| S | - | 0.0350 | - |
| Nb | - | 0.1000 | - |
ASTM A656 Type 7 Grade 50 ASTM A656/A656M Mechanical Properties
More detailed information about ASTM A656 Type 7 Grade 50 ASTM A656/A656M steel Mechanical Properties, please refer to the following table:
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 949 (≥) | 533 (≥) | 31 | 21 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 244 |
ASTM A656 Type 7 Grade 50 ASTM A656/A656M Physical Properties
ASTM A656 Type 7 Grade 50 ASTM A656/A656M is available in several types, such as Type 10 (normalizing rolling), Type 11 (tempered rolling), Type 12 (thermo-mechanical controlled processing) and Type 13 (thermal treatment). Depending on the application, various types of steel plates can be ordered to meet specific requirements. Additionally, additional elements can be added to the ASTM A656 Type 7 Grade 50 ASTM A656/A656M plate to adapt it to the desired application.
The physical properties of ASTM A656 Type 7 Grade 50 ASTM A656/A656M steel incorporate high quality, low weight, solidness, ductility and protection from erosion.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.44 | - | |||
| 817 | 126 | - | 24.3 | 224 | - | ||
| 574 | - | 41 | 41.2 | 334 | 212 |
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