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9Cr18, 9Cr18Mo stainless steel ball
9Cr18 is high carbon and high chromium martensite stainless bearing steel. After quenching, it has high hardness and wear resistance, high dimensional stability, generally used after quenching and tempering.
9Cr18Mo has the same characteristics and application as 9Cr18 steel, but has higher hardness and stability after quenching. Molybdenum can increase the passivation effect of stainless steel.
| 9Cr18, 9Cr18Mo material chemical composition | ||||||||||
| Steel grade | Carbon | Manganese | Silicon | Chromium | Nickel | Copper | Sulfur | Phosphorus | Molybdenum | |
| Stainless steel 9Cr18 | 0.90/1.00 | ≤0.70 | ≤0.80 | 17.0/19.0 | ≤0.60 | ≤0.030 | ≤0.030 | |||
| Stainless steel 9Cr18Mo | 1.00/1.10 | ≤0.80 | ≤0.50 | 16.0/18.0 | ≤0.030 | ≤0.030 | 0.40-0.70 | |||
| 9Cr18, 9Cr18Mo material mechanical properties | |||||
| Heat treatment | σb Mpa | σs % | Ψ% | HRC/HBW | |
| Quenching and tempering state | --- | --- | --- | ≥58 HRC | |
| Annealing state | 755 | 14 | 27.5 | 230-240 HBW | |
| 9Cr18, 9Cr18Mo High carbon chromium stainless steel ball specifications | |||||
| Nominal diameter of steel ball | Nominal diameter of steel ball | Nominal diameter of steel ball | |||
| mm | in | mm | in | mm | in |
| 0.5 | 0.6 | 0.794 | 1/32 | ||
| 0.8 | 1 | 1.588 | 1/16 | ||
| 2 | 2.381 | 3/32 | 2.5 | ||
| 2.778 | 7/64 | 3 | 3.175 | 1/8 | |
| 3.5 | 3.969 | 5/32 | 4 | ||
| 4.5 | 4.762 | 3/16 | 5 | ||
| 5.159 | 13/64 | 5.5 | 5.953 | 15/64 | |
| 6 | 6.35 | 1/4 | 6.5 | ||
| 6.747 | 17/64 | 7 | 7.144 | 9/32 | |
| 7.5 | 7.938 | 5/16 | 8 | ||
| 8.5 | 9 | 9.525 | 3/8 | ||
| 10 | 11.112 | 7/16 | 12 | ||
| 12.303 | 31/64 | 12.7 | 1/2 | 13.494 | 17/32 |
| 14.288 | 9/16 | 15.081 | 19/32 | 15.875 | 5/8 |
| 16.669 | 21/32 | 17.462 | 11/16 | 18.256 | 23/32 |
| 19.05 | 3/4 | 20.638 | 13/16 | 22.225 | 7/8 |
►Manufacturing capacity of 9Cr18, 9Cr18Mo stainless steel ball:
►Exhibition of 9Cr18, 9Cr18Mo stainless steel ball: