We have been produced high carbon chrome steel ball and high carbon chrome stainless steel ball for many years.
We were the first factory of steel ball in China. We made a significant contribution for new China.
We have provided associated facilities successfully for binding long march 2 rocket, China homemade intercontinental ballistic missile, nuclear reactor slew shielded piston of 2008 Beijing Olympic Games, 76mm self-propelled gun of navy’s headquarters, Tian Gong 1 Spacelab in 2014 and registered by military ministry of China.
At the same time, we have obtained the quality system of ISO9001:2008.
High Carbon Chrome Steel Ball For Bearing
1)Material Comparison List
CHINA | USA | JAPAN | GERMANY | FRANCE | ENGLAND | ITALY |
| GB | AISI | JIS | DIN | BS | BS | UNI |
GCr15 | 52100 | SUJ-2 | 100Cr6 | 100C5 | Si35534A99 | SKF3 |
2)Products information
| NAME | High carbon chrome steel ball |
| SIZE | 1.5mm-250mm |
| Materials | 100CrMnSi6-4 |
| Hardness | 58--66 |
| Application | Auto industry , Wind Power , Slewing bearing , Tower crane, Marine Machinery, Aerospace Industry , Military industry, Mine Nuclear power industry, Agricultural machinery, Oil platform, Chemical Industry |
| Quality Standard | ISO9001:2008 |
| Characteristics and advantages | We are the only manufacturer of producing over 150mm high carbon chrome steel ball. Our products covered 19.05mm-250mm. Our products of accuracy covered G10-G1000. We are the only professional manufacturer of producing (3/4”-10”) steel ball and (3/4”-5”) stainless steel ball. We can accept customer's special requirements. We are the only manufacturer of producing the large - size steel balls in China. |
3)Chemical composition
| MATERIAL | C | Si | Mn | Cr | Mo | P | S | Ni | Cu | Ni+Cu |
| GCr15(100Cr6) | 0.95-1.05 | 0.15-0.35 | 0.25-0.45 | 1.4-1.65 | ≤0.1 | ≤0.025 | ≤0.025 | ≤0.3 | ≤0.25 | ≤0.5 |
GCr15SiMn ( 100CrMnSi6-4 ) | 0.95-1.05 | 0.45-0.75 | 0.95-1.25 | 1.4-1.65 | ≤0.1 | ≤0.025 | ≤0.025 | ≤0.3 | ≤0.25 | ≤0.5 |




