The A982/A982M-10(2015) steel grade is a high-strength, low-alloy steel that is commonly used in various industries. This comprehensive overview will unveil the chemical composition, mechanical properties, and applications of this steel grade.
Chemical Composition:
The chemical composition of A982/A982M-10(2015) steel grade is as follows:
– Carbon (C): The carbon content in this steel grade ranges from 0.15% to 0.25%, which gives it good hardness and strength.
– Manganese (Mn): The manganese content typically ranges from 1.00% to 1.50%, which contributes to the steel’s strength and toughness.
– Phosphorus (P): The maximum phosphorus content allowed in this steel grade is 0.040%, as higher levels can negatively affect its mechanical properties.
– Sulfur (S): The maximum sulfur content allowed in this steel grade is 0.050% to ensure good machinability and weldability.
– Silicon (Si): The silicon content typically ranges from 0.10% to 0.40%, which improves the steel’s strength and impact resistance.
– Chromium (Cr): The chromium content is usually below 0.35%, providing increased resistance to corrosion and oxidation.
– Nickel (Ni): The steel may contain small amounts of nickel, which enhances its toughness and ductility.
– Copper (Cu): Copper content may be present in trace amounts, improving the steel’s resistance to atmospheric corrosion.
Mechanical Properties:
The mechanical properties of A982/A982M-10(2015) steel grade include:
– Tensile Strength: The minimum tensile strength of this steel grade is 620 MPa (90 ksi), indicating its high strength.
– Yield Strength: The minimum yield strength of this steel grade is 450 MPa (65 ksi), which determines its ability to resist deformation under stress.
– Elongation: The minimum elongation after fracture is 12%, indicating good ductility.
– Impact Toughness: The steel has excellent impact toughness, making it suitable for applications requiring resistance to sudden impact or vibration.
– Hardness: The steel grade typically has a hardness range of 180 to 220 Brinell Hardness (HB), depending on the heat treatment and alloying elements used.
Applications:
Due to its high strength, good ductility, and excellent impact toughness, A982/A982M-10(2015) steel grade finds applications in various industries, including:
– Construction: Used in the fabrication of structural components, such as buildings, bridges, and offshore platforms.
– Automotive: Used in the manufacturing of vehicle chassis, suspension systems, and safety components.
– Heavy machinery: Used for manufacturing components in mining equipment, agricultural machinery, and construction machinery.
– Pressure vessels: Used in the fabrication of pressure vessels for the oil and gas industry, chemical processing plants, and power generation.
In summary, A982/A982M-10(2015) steel grade is a high-strength, low-alloy steel with good ductility, impact toughness, and resistance to deformation and corrosion. Its chemical composition and mechanical properties make it suitable for various applications in industries such as construction, automotive, heavy machinery, and pressure vessel manufacturing.