... ,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square / Rectangular / Hexagon ), O.D range ( ... ~ Max. 50mm)StandardASTM A 268 (Seamless and Welded Ferritic Stainless Steel Tubing For General Service)TP405 / TP410 / TP429 / TP430 / TP443 / ... ,76,88.9,102,114,133,141,159,219 2)Square pipes - Outside dimensions(mm) : 10x10,12x12,15x15,17x17, ...