... chemical industry, chemical fiber, smelt, medical machinery, papermaking, heat preservation and refrigeration, mechanical equipment, food, electricity, water ... architecture, aerospace, navigation shipbuilding, environmental protection and boiler heat exchangerAmerican Standard(ANSI) CHEMICAL COMPOSITION(%)GradeC (Max)Mn ... ~0.22 The above is for reference onlywww.yadasteel.com 304L stainless steel pipe ...