China Big Size Forged Grinding Steel Bar for Gold Mines ...
2022-1-25 · Alloy steel round bar is directly from heated high carbon alloyed steel bar followed by straightening and in-line heat treatment, tailed to give uniform hardness, high resistance to both abrasion and impact, and resistance to bending. 1. Available size: dia. 30mm - dia. 130mm / length: 3.0m-6.0m & customizable 2. Grade: 60Mn, 65Mn,B2, B3,BL,BG 3. Hardness: HRC 35