Carbon Steel Wire Rod, Bright, Hex, Round, Flat, Hexagon, Triangle, Square Bar :: ASTM / ASME A 105. Alloy Steel Wire Rod, Bright, Hex, Round, Flat, Hexagon, Triangle, Square Bar :: ASTM / ASME A 182 GR F 5, F 9 , F 11 , F 12 , F 22 , F 91. ASTM / ASME A 729 GR B 11 & B 22.