Stainless Steel Bright ( Round) Bars Straight / Acid cleaning / HL polishing / Pealing / Drawing / Center-less Dia / Sizes : 16mm to 80mm Tolerance : h9 Grades : - AISI 201 ( 0.5% / 1% / 2% Nickel) , AISI 202 ( 3% - 4% Nickel) , 304, 304L, 316, 316L, AISI 410, 409, 420 430, 430. Manufacturing standard: AISI, ASTM, DIN or As per Customer requirement.