Welded Round Perforated Tubes for Mechanical and Structural Purposes Material: 304, 304L, 316, 316L, 201, 202, 430, 409 Standard: ASTM A554, JIS G3446, CNS 5802 Outside Diameter 8mm ~ 152.4mm (516”~6”) 8.0 , 9.50 , 12.0 , 12.70 , 14.00 , 15.90 , 19.0 , 21.30 , 22.20 , 25.40 , 26.0 , 27.20 , 28.60 , 31.80 more...