... ,Hydrostatic Test,Hardness Test,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square / ... ~ Max. 50mm)StandardASTM A 268 (Seamless and Welded Ferritic Stainless Steel Tubing For General Service)TP405 / TP410 / TP429 / TP430 ... follow the ASTM A 554 and others.Features:1)Material of stainless steel: grade: AISI 201, 202, 301,304, 304L ...