Specifications
Grindin BallISO9001:2008
even hardness
Good wear-Resistance
No breaking
Casting Steel Grinding Ball- Casting Steel Grinding Media Balls
Grinding balls product performance:
NO deforamtion, No breakage, Lower wear rate longee lasting chromium .
Uniformity of hardness from surface to core.
Mechanical Properties:
Items | Suface hardness(HRC) | Endurance impact test | |
Quenched | Unquenched | (Times) | |
High chrome Casting grinding balls | ≥60 | ≥50 | ≥8000 |
Middle chrome Casting grinding balls | ≥60 | ≥50 | ≥8000 |
Low chrome Casting grinding balls | ≥60 | ≥45 | ≥8000 |
Sizes of Casting Balls
Item | SIZES | |||||||||||||
φ17 | φ20 | φ25 | φ30 | φ40 | φ50 | φ60 | φ70 | φ80 | φ90 | φ100 | φ110 | φ120 | φ130 | |
Tolerance | +1.0 | +2.0 | +3.0 | +3.5 | ||||||||||
-1.0 | -1.0 | -1.0 | -1.5 | |||||||||||
Difference between max diam and min diam | ≤1.0 | ≤2.0 | ≤3.0 | |||||||||||
Casting grinding balls chemical composition
Items | Brand | Chemical elements | ||||||||
C | Si | Mn | Cr | Mo | Cu | Ni | P | S | ||
High chrome casting iron ball | JCCr20 | 2.0-3.0 | ≤1.0 | 0.5-1.5 | 18-22 | 0-2.5 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.10 |
High chrome casting grinding ball | JCCr15 | 2.0-3.0 | ≤1.0 | 0.5-1.5 | 14-17 | 0-3.0 | 0-1.0 | 0-1.5 | ≤0.10 | ≤0.10 |
High chrome casting grinding ball | JCCr13 | 2.0-3.0 | ≤1.0 | 0.5-1.5 | 11~14 | 0-1.0 | 0-2.0 | 0-1.5 | ≤0.10 | ≤0.10 |
Middle chrome casting grinding ball | JCCr7 | 2.1-3.2 | 0.5-2.2 | 0.5-1.5 | 6~10 | 0-1.0 | 0-0.8 | 0-1.5 | ≤0.10 | ≤0.10 |
Low chrome casting grinding ball | JCCr2 | 2.2-3.6 | ≤1.2 | 0.5-1.5 | 1.0-3.0 | 0-1.0 | 0-0.8 | ≤0.10 | ≤0. | |
Application fields:
Industries of cement building material ,metallurgical selection in mine,grinding coal in power plant
chemical industry and machinery,etc
Production Technology Process:
RAW MATERIALS→CUTTING→ STOVE→ FORGING→ TRANSTER MACHINE→ QUENCHING→ HEAT TREATMENT→DIMENSION TEST→ HARDNESS TEST→ PACKING→ STE FREIGHT