The A990/A990M-14a steel grade is a standard specification for castings, stainless, and alloy steel, for general applications. It outlines the chemical composition, mechanical properties, and the corresponding standard number of this steel grade.
The chemical composition of A990/A990M-14a steel grade includes elements such as carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, copper, and other trace elements. The specific ranges for these elements are mentioned in the standard.
The mechanical properties of A990/A990M-14a steel grade are also defined. These properties include tensile strength, yield strength, elongation, reduction of area, and hardness. The standard specifies the minimum values for these properties that the steel grade must meet.
The standard number for A990/A990M-14a is ASTM A990/A990M-14a. This is the unique identifier for this particular standard specification, which is recognized by manufacturers, engineers, and other professionals in the industry.
Overall, A990/A990M-14a steel grade is a comprehensive standard that provides guidelines for the chemical composition, mechanical properties, and standard number corresponding to this specific steel grade. It ensures that the steel meets the required strength and performance criteria for general applications.