Stainless Steel Welded Pipe: Stainless steel pipe standard: ASTM A688, A213, A249, A268, A269, A270, A312, A358, A376, A511 Stainless Steel Welded Pipe:Detail:Stainless steel pipe standard ... 9940-81, GOST9941-81, DIN17457, DIN17455, EN10217-7.Stainless steel pipe description:1) Standard: ASTM A249,A269,A270,A312, ... corrosion test ect.9) We supply welded stainless steel tube Straight type and U type.10) ...