U Bend Seamless Stainless Steel Tube Standard ASTM A554,ASTM A312 Material Grade 201,202,304,316,316L,430,409L,430,410,420J1,420J2 Main Material a) 201 (Ni0.8%-1%) b) 202 (Ni: 3.0%-4.0%) c) 304 (Ni: 8% Cr: 18%) d) 316 (Ni: 10% Cr: 18%) Size Range 139mm-1600mm ETC. Thickness 0.5-30mm Length 6m or as ...