... large quantity used in gear box . Material: Carbon steel, alloy steel Main shaft for gear box parameters: Material EN10083-142CrMo ... of extension700-800MPaYield strength≥625MPaFinal gauge length≥13% Reduction of area≥55%-20 low temperature impact Akv ... as many types of shafts, different kinds of flanges, gear rings, brake discs , roller ,tubular parts, and ... concerning our company. Main shaft for gear box