GB/T11251 1345 Alloy Structural Steel Coil

GB/T 11251 alloy structural steel coil exhibits high strength and wear resistance, along with high hardenability, moderate cold deformation plasticity, good cutting performance, and excellent welding capabilities. The steel’s toughness experiences minimal reduction during heat treatment and can maintain high toughness under water cooling conditions. However, it is susceptible to overheating sensitivity, white point sensitivity, and temper brittleness. Typically used after quenching and tempering, it can also be employed under positive inflammation or hot rolling conditions. Common applications include valve bodies, pumps, fittings, wheels, bolts, studs, gears, high-load internal combustion engine components, drive shafts, steel balls, rollers, bushings for electric locomotives, machine tools, tractors, steel rolling equipment, boring machines, railway vehicles, and mining machinery.