The A656/A656M-13 steel grade is a high-strength, low-alloy structural steel commonly used in the construction industry. It is known for its excellent mechanical properties, including high tensile strength and good weldability.
Chemical Composition:
The chemical composition of A656/A656M-13 steel grade consists of carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), and vanadium (V). The maximum allowable limits for each element are as follows:
– Carbon (C): 0.18%
– Manganese (Mn): 1.65%
– Phosphorus (P): 0.025%
– Sulfur (S): 0.020%
– Silicon (Si): 0.60-0.90%
– Vanadium (V): 0.08-0.15%
Mechanical Properties:
The A656/A656M-13 steel grade exhibits excellent mechanical properties, making it suitable for various applications. The minimum values for its mechanical properties are as follows:
– Tensile Strength: Minimum 60 ksi (415 MPa)
– Yield Strength: Minimum 50 ksi (345 MPa)
– Elongation in 2 inches: Minimum 21%
– Elongation in 8 inches: Minimum 18%
Standard Number:
The A656/A656M-13 steel grade is specified by the ASTM International standard number A656/A656M-13. This standard defines the requirements for hot-rolled structural steel plates, shapes, and bars with improved formability, weldability, and toughness.
Applications:
The A656/A656M-13 steel grade is commonly used in the construction industry for various applications that require high strength and good weldability. Some common applications include:
– Structural Steel Fabrication: It is used to fabricate structural beams, columns, and other components for buildings, bridges, and other structures.
– Heavy Equipment Manufacturing: It is used in the manufacturing of heavy machinery and equipment such as bulldozers, excavators, cranes, and loaders.
– Transportation Industry: It is used in the construction of truck frames, trailers, and other transportation vehicles.
– Mining and Offshore Applications: It is used in the manufacturing of equipment and structures for mining operations and offshore platforms.
Overall, the A656/A656M-13 steel grade offers excellent mechanical properties and is suitable for a wide range of applications in the construction and manufacturing industries. Its high strength, good weldability, and improved formability make it a preferred choice for various structural and heavy-duty applications.