GCr15 stainless steel ball, in fact, refers to a GCr15 stainless steel forging production of steel balls.This GCr15 stainless steel is what we commonly call high-carbon chromium bearing steel, has a good overall performance.In the actual processing, after quenching and tempering, with high hardness and very uniform. So, what is GCr15 stainless steel ball performance characteristics?
It is because GCr15 stainless steel itself has more superior performance, not only has good wear resistance and strong resistance to fatigue, but also has good thermal processing performance.GCr15 stainless steel ball after annealing treatment, still maintain a good workability.But for the formation of white spots are more sensitive.
At present, it is mainly used for manufacturing various kinds of steel balls on internal combustion engines, electric locomotives, machine tools, tractors, and mining machinery.
It should be noted that during the actual processing, GCr15 stainless steel ball performance will be subject to some factors, such as quenching temperature. Under normal circumstances, GCr15 steel quenching temperature of 830 to 860 ℃,Generally use the oil cooling method. The best quenching temperature of 840 ℃,Hardness after quenching reached 63-65HRC.
However, due to the current production conditions are limited, so in the processing, the actual quenching temperature there will be some differences. Then GCr15 stainless steel ball will have a certain impact on the performance. Another important factor is the tempering temperature.
This is because, when the tempering temperature is constantly rising, the hardness of the steel after the treatment will be reduced.
In order to ensure the final processing quality, GCr15 stainless steel ball in the treatment of the time, the general tempering temperature control in the range of 160 to 180 ℃.In addition, due to the different molds used, Therefore, GCr15 stainless steel ball quenching, the need to properly adjust the quenching temperature.