Stainless steel pipe is a hollow, long, round steel material that is widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical structural components. In addition, when the bending and torsional strength is the same, the weight is light, so it is also widely used in manufacturing mechanical parts and engineering structures. Size: Thickness 0.1-40.0mm, OD 6.0-800mm Standard:ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605,GB13296. Material:304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202. Surface:Polishing,annealing,pickling,bright 400grit,150grit,600grit,800grit.Hairline,Satin finish.