ASTM A333 / A333M - 11 Standard Specification for Seamless and Welded Steel Pipe for Low Temperature Service. ASTM A335 / A335M - 11 Standard Specification for Seamless Ferritic Alloy Steel Pipe for High Temperature Service. ASTM A213 / A213M - 11a Standard Specification for Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater, and Heat Exchanger Tubes