The chemical composition of the A289/A289M-97(2013) steel grade is as follows:
– Carbon (C): 0.22% max
– Manganese (Mn): 1.35% max
– Phosphorus (P): 0.035% max
– Sulfur (S): 0.040% max
– Silicon (Si): 0.15-0.40%
– Copper (Cu): 0.20% min (if copper-bearing steel)
– Nickel (Ni): 0.50% max (if nickel-bearing steel)
– Chromium (Cr): 0.30% max (if chromium-bearing steel)
– Molybdenum (Mo): 0.08% max (if molybdenum-bearing steel)
– Vanadium (V): 0.08% max (if vanadium-bearing steel)
These chemical elements contribute to the overall strength and flexibility of the steel grade. Carbon provides strength, while manganese enhances the steel’s toughness and hardenability. Phosphorus and sulfur are impurities that are usually controlled to improve the steel’s machinability and weldability. Silicon helps in deoxidization and enhances the steel’s strength and hardness. Copper, nickel, chromium, molybdenum, and vanadium are alloying elements that can improve the steel’s strength, hardness, and high-temperature performance.
The mechanical properties of the A289/A289M-97(2013) steel grade are as follows:
– Tensile strength: 415-485 MPa
– Yield strength: 250 MPa min
– Elongation: 22% min
– Reduction in area: 50% min
– Charpy V-notch impact toughness: 27 J min (-20°C)
These mechanical properties make the steel grade suitable for various applications where strength and flexibility are required. The high tensile strength ensures that the steel can withstand heavy loads and stresses without deformation or failure. The yield strength indicates the steel’s ability to resist deformation under a specific load. The elongation and reduction in area measurements indicate the steel’s ability to elongate and deform before fracture, indicating good ductility. The Charpy V-notch impact toughness is a measure of the steel’s ability to absorb energy during impact events, providing resistance against brittle fracture.
The A289/A289M-97(2013) steel grade is standardized by the American Society for Testing and Materials (ASTM). The standard number for this steel grade is A289/A289M-97(2013), which specifies the chemical composition and mechanical properties of the steel grade. This standard ensures that the steel grade is consistent and suitable for its intended applications.
The corresponding steel grade of A289/A289M-97(2013) in other standards may vary, but it can be equivalent to other steel grades with similar chemical composition and mechanical properties. The correspondence can be determined by comparing the chemical composition and mechanical properties of different steel grades.