50mm Diameter Stainless Steel Tube 1.Standard:ASTM 2.Grade:304L,316L,904L 3.SCH20,SCH40 50mm Diameter Stainless Steel Tube 50mm Diameter Stainless Steel Tube1.Standard: ASTM,JIS,DIN,AISI,EN2.Grade: 304,304L,309S,310S,316,317L..3. SHC20,SCH40/40S,SCH80/80S 50mm Diameter Stainless Steel Tube Product Name50mm Diameter Stainless Steel Tube StandardsASTM/ASME A SA 213 ASTM/ASME A SA 312 ASTM/ASME A SA ...