The A956/A956M-17a steel grade is a specification for normalized, quenched, and tempered alloy steel plates that are intended for use in fusion-welded boilers and pressure vessels.
The chemical composition of this steel grade typically includes carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, and vanadium. The specific composition requirements may vary depending on the thickness of the plates and other factors.
The mechanical properties of the A956/A956M-17a steel grade are specified in terms of tensile strength, yield strength, elongation, and reduction of area. These properties are determined through various testing methods, such as tension testing, impact testing, and hardness testing. The specific values for these properties are defined in the standard and may vary depending on the thickness of the plates.
The A956/A956M-17a standard number refers to the ASTM A956/A956M-17a standard, which is the American Society for Testing and Materials (ASTM) standard for this particular steel grade. This standard provides guidelines and specifications for the chemical composition, mechanical properties, and other requirements of the A956/A956M-17a steel grade.
The corresponding A956/A956M-17a steel grade refers to the steel grades that are equivalent or similar to the A956/A956M-17a grade according to other national or international standards. These corresponding grades may have different designations but possess similar chemical compositions and mechanical properties. Manufacturers and users of this steel grade may refer to these corresponding grades for compatibility purposes or to meet specific requirements in different countries or industries.