A213/A213M Standard Specification for Seamless
ASTM A213/A213M-21b. Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes ... and Heat-Exchanger Tubes Standard A213/A213M Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, ... designated Grades T5, TP304, etc. These steels are …