ASTM A312 Stainless Steel Pipe Specification Standard Specification for Seamless, Soldado, and Heavily Cold Worked Austenitic Stainless Steel Pipes ASTM A312 pipe is common use stainless pipe for industries. Cobre diâmetros de 1/8” a 30” e espessuras de SCH 10S a SCH 80S. As classes de materiais de uso geral são TP304/304L, TP316/316L.