The A463/A463M-15 steel grade is a specification for hot-dipped aluminum-coated steel sheets. It is commonly used in the automotive industry for various components, such as body panels and structural parts. The chemical composition of this steel grade is as follows:
– Carbon (C): The maximum carbon content allowed is 0.25%.
– Manganese (Mn): The maximum manganese content allowed is 1.00%.
– Phosphorus (P): The maximum phosphorus content allowed is 0.040%.
– Sulfur (S): The maximum sulfur content allowed is 0.030%.
– Aluminum (Al): The aluminum coating on the steel sheets provides corrosion resistance and enhances the aesthetic appearance.
In terms of mechanical properties, the A463/A463M-15 steel grade has specific requirements. These properties are determined through testing and are important for assessing the performance and suitability of the steel grade for various applications. Some of the mechanical properties include:
– Tensile Strength: The steel grade must have a minimum tensile strength of 30,000 psi (207 MPa).
– Yield Strength: The steel grade must have a minimum yield strength of 20,000 psi (138 MPa).
– Elongation: The steel grade must have a minimum elongation of 20% in 2 inches (50 mm).
– Coating Weight: The aluminum coating on the steel sheets must meet specific coating weight requirements, which are measured in ounces per square foot (oz/ft2) or grams per square meter (g/m2).
The A463/A463M-15 steel grade is standardized by ASTM International, an organization that develops and publishes technical standards for various materials, products, systems, and services. The standard number for the A463/A463M-15 steel grade is ASTM A463/A463M-15, which specifies the requirements for the steel sheets with aluminum coating.
In summary, the A463/A463M-15 steel grade is a hot-dipped aluminum-coated steel grade that is commonly used in the automotive industry. It has specific chemical composition and mechanical properties requirements. This steel grade is standardized by ASTM International under the standard number ASTM A463/A463M-15.