Grade: aisi 201, 202, 304, 304l, 316, 316l, 321, 409, 430, etc Standard: astm a554, a269, a312, a249, a270 Outside diameter: 6mm - 219mm Dimension: 10mm*10mm - 150mm*150mm Dimension: 23mm*11mm - 120mm*60mm Wall thickness: 0.3mm - 3.0mm Surface: 400 grit, 600 grit, 240 grit, hl, 2b, ba