GCr15 steel bars, GCr15 bearing steel, GCr15 plate, GCr15 bearing steel is an alloy content of less good performance, the most widely used high-carbon chromium bearing steel. After quenching and tempering of high and uniform hardness, good wear resistance, high contact fatigue performance. The cold steel, plastic medium, generally cutting, welding performance is poor, sensitive to the formation of white spots, and have a temper brittleness.
Standard:
China GB/T18254-2002
Japan JIS G4805: 1991
U.S. ASTM A295: 1998
Unified digital code: B00150
Chemical composition
Carbon C :0.95-1 .05
Manganese Mn :0.20-0 .40
Si Si :0.15-0 .35
   Sulfur S: <= 0.020
Phosphorus P: <= 0.027
Chromium Cr :1.30-1 .65

Use
In addition to doing ball, bearing ring endures, and sometimes also used to make tools such as dies, measuring tools.
Feature
Overall performance is good. Spheroidizing after a good cutting performance after quenching and tempering the high and uniform hardness, wear resistance and contact fatigue strength of high performance thermal processing. Contains more alloying elements, the price is cheaper.