... Steel Grade:304,304L,316L,321 3.Size range: OD:6-325mm, W.T: 1-16mm 1. Stainless steel ... seamless tube2. Standard&steel grade: ASTM A213 TP304,TP304L,TP316, ... A269,ASTM A312,ASTM A269 and equivalent standards&steel grade.3. Size range: OD:6-325mm, ... for size above 8".8 Application: seamless stainless steel tube can be used for petroleum cracking, fertilizer equipment ...