1.1 This specification covers a group of common requirements that shall apply to wrought steel piping fittings covered in any of the following individual product specifications or any other ASTM specification that invokes this specification or portions thereof: Title of Specification ASTM Designation Specification for Piping Fittings of Wrought ??Carbon Steel and Alloy Steel for Moderate and ??Elevated Temperatures A234/A234M Specification for Wrought Austenitic Stainless ??Steel Piping Fittings A403/A403M Specification for Piping Fittings of Wrought Carbon ??Steel and Alloy Steel for Low-Temperature Service A420/A420M