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1.Chemical elements of casting balls
Items | Surface hardness(HRC) | Endurance impact test (Times) | |
Quenched | Unquenched | ||
High chrome Casting grinding balls | ≥60 | ≥50 |
≥8000
|
Middle chrome Casting grinding balls | ≥50 | ||
Low chrome Casting grinding balls | ≥45 | ||
Forged steel ball | 55-65HRC | ||
2.SIZES OF CASTING BALLS
Items | SIZES | |||||||||||||
φ17 | φ20 | φ25 | φ30 | φ40 | φ50 | φ60 | φ70 | φ80 | φ90 | φ100 | φ110 | φ120 | φ130 | |
Tolerance | +1.0 -1.0 | +2.0 -1.0 | +3.0 -1.0 | +3.5 -1.5 | ||||||||||
Difference between max diam and min diam | ≤1.0 | ≤2.0 | ≤3.0 | ≤4.0 | ||||||||||
3.Product performance:
1)No deforamtion
2)No breakage
3)Lower wear rate longer lasting chromium
4)Uniformity of hardness from surface to core.
4.Application fields:
1)industries of cement building material
2)metallurgical selection in mine
3)grinding coal in power plant
4)chemical industry
5)machinery
Jinan zhongwei casting and forging grinding ball Company Limited is looking forward to cooperating with clients all over the world
5.Processing line
low chrome casting steel ball