A333 Gr 6 Heat Exchanger Pipe  

A333/A333M Seamless and Welded Steel Pipe for Low-Temperature Service A333 Gr 6 Heat Exchanger Pipe Material:   Carbon and Alloy Steel, ferritic steel Grade 1A, Grade3, Grade 4, Grade 6A, Grade 7A   Manufacture: The pipes are made by seamless and welding process with the addition of no filler metal in the welding operation. Grade 4 is manufactured by seamless process   Heat treatment: All seamless and welded pipes, other than Grades 8 and 11, are heat treated to control their microstructure in accordance with methods of: Normalizing Quenched and Tempered Double Normalized and Tempered   TABLE 1 Chemical Requirements Element Composition,% Grade 1A Grade 3 Grade 4 Grade 6A Grade 7A Carbon, max 0.30…