Welded stainless steel round pipes and tubes 1.OD:12.7~2200mm 2.WT:0.5mm~30mm 3. ... Material:201,304,316L,309S 4.TIG,PLASMA stainless steel pipe ... Application: heat exchanger, boiler, condenser, pressure vessel 1) Standard: ASTM A249, ASTM A312 / DIN174572 ...