ASTM A249 SS welded pipe.pdf
ASTM A249 is a standard specification for welded austenitic steel tubes used as boilers, superheaters, heat exchangers, and condensers. It covers the chemical and mechanical requirements, testing, and quality control for these tubes, which are available in various grades like TP304, TP304L, and TP316L. The specification defines the size range, dimensional tolerances, heat treatment, and surface finish requirements for the tubes.