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RINGS & BALLS vacuum degassed, high carbon chromium bearing steel GCr15 is the standard material for precision bearing rings and balls. The material has uniform specification as AISL 52100(America)DIN100 Cr6(German),JISSUJ2(Japan)
Steel No. | Chemical composition % | ||||||||
C | Si | Min | P | S | Cr | Mo | Cu | Ni | |
GCr 15 | 0.95-1.05 | 0.15-0.35 | 0.25-0.45 | s0.025 | s0.025 | 1.40-1.65 | – | s0.25 | s0.30 |
Specification | Trademark | Chemical composition (%) | ||||||
C | Si | Mn | P | S | Cr | Mo | ||
GB 3086 | 9Cr18 | 0.90-1.00 | Below 0.80 | Below 0.80 | Below 0.35 | Below 0.30 | 17.00-19.00 | |
JIS G 4303 | SUW440C | 0.95-1.20 | Below 1.00 | Below 1.00 | Below 0.40 | Below 0.30 | 16.00-18.00 | Below 0.75 |
