1.1 This specification covers a group of common requirements that, unless otherwise specified in an individual specification, shall apply to steel castings for pressure-containing parts under each of the following ASTM specifications: Title of Specification ASTM Designation Steel Castings, Carbon, Suitable for Fusion Welding A 216/A 216M for High-Temperature Service Steel Castings, Martensitic Stainless and Alloy, for A 217/A 217M Pressure-Containing Parts Suitable for High- Temperature Service Steel Castings, Austenitic, for High-Temperature A 351/A 351M Service Steel Castings, Ferritic and Martensitic, for Pressure- A 352/A 352M Containing Parts Suitable for Low-Temperature Service Steel Castings, Alloy, Specially Heat-Treated, for A 389/A 389M Pressure-Containing Parts, Suitable for High- Temperature Service Steel Castings Suitable for Pressure Service A 487/A 487M 1.2 This specification also covers a group of supplementary requirements which may be applied to the above specifications as indicated therein. These are provided for use when additional testing or inspection is desired and apply only when specified individually by the purchaser in the order. 1.3 In case of conflict between the requirements of the individual specification and this general specification, the former shall prevail. 1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Inch-pound units are applicable for material ordered to Specification A 703 and SI units for material ordered to Specification A 703M.