... Hardness Test,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square / Rectangular / Hexagon ), O.D ... stainless steel pipes online for many years in China.Standard:Strictly follow the ASTM A 554 and others.Features: 1)Material of stainless steel ... ,88.9,102,114,133,141,159,219 2)Square pipes - Outside dimensions(mm) : 10x10,12x12,15x15,17x17 ...