GCr15 steel is a representative steel of high-carbon chromium bearing steel, with good comprehensive performance.
High and uniform hardness after quenching and tempering, high abrasion resistance, high resistance to contact fatigue strength. Good hot workability. Good workability after spheroidizing and annealing, but sensitive to the formation of white spots. Mainly used in the manufacture of internal combustion engines, electric locomotives, machine tools, tractors, rolling equipment, drilling rigs, railway vehicles and mining machinery, such as steel balls, rollers and bushings on the drive shaft.
Main characteristics and uses
High and uniform hardness after quenching and tempering, high wear resistance, resistance to lifting fatigue strength. Good hot workability. Good workability after spheroidizing and annealing, but sensitive to the formation of white spots.
Can be used in the manufacture of wall thickness ≤ 12mm, OD ≤ 250mm of a variety of bearing rings; also used for a wide range of sizes of rolling body, such as steel balls, tapered rollers, cylindrical rollers, spherical rollers, needles, etc.; also used in the manufacture of molds, precision gauges, and other requirements of high abrasion resistance, high elastic limit and high contact fatigue strength of the mechanical parts.
Mainly used in the manufacture of internal combustion engines, electric locomotives, machine tools, tractors, rolling equipment, drilling rigs, railway vehicles and mining machinery, such as drive shafts on the steel balls, rollers and bushings.