TIG welded stainless steel pipe . Standard:ASTM A554 Grade:201,202,301,304,316 1)TIG welded stainless steel pipe2)Standard:ASTM A5543)grade:201,202,301,304,3164)Round tube:O.D. form 9.5mm to 219mm,thickness from 0.5mm to 3.0mm5)Rectangular&Square tube:Side length from 10mm*10mm to 150mm*150mm,thickness from 0.25mm to 3.0mm6)Length of Tube from 3m to 8m welded stainless steel pipe