Audited Supplier
1 inch to 5.5 inch
Steel
Steel
Grind, Mining
Forged or Hot Rolling
1 Inch to 5.5 Inch
Black
Customized
60-65HRC
Below 1%
14j Above
Heat Treated
7.85g
JINCHI
Bag or Drum
1"-5.5"
Shandong, China
7326110000
Product Description
Forged grinding balls are made by air hammer and Hot rolling balls are produced by skew rolling technology.
Because of automatic production lines are used, balls' quality control is increasingly perfect.
This makes sure precise size control, stable hardness, uniform internal structure for each ball.
Uniform hardness: 60-65HRC
Low breakage: below 1%
High grinding resistance: 10-30% longer use
High impact value: more than 14j/cm2
High comprehensive efficiency of the mill
Chemical elements of steel balls
| Brand | Materials | C | Mn | Si | Cr | S | P | V | |
| JC-1 | 50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 | ||
| JC-2 | 60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 | ||
| JC-3 | 65Mn | 0.62-0.70 | 0.90-1.2 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 | ||
| JC-4 | B2 | 0.72-0.85 | 0.70-0.80 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | ||
| JC-5 | B3 | 0.58-0.70 | 0.70-1.00 | 1.50-1.90 | 0.70-0.90 | ≤0.035 | ≤0.035 | ||
| JC-6 | B6 | 0.80-0.95 | 0.80-1.00 | 0.17-0.37 | 0.80-1.00 | ≤0.035 | ≤0.035 | ||
| Specification of hot rolling steel Grinding balls | |||||||||
| Nominal diameter | Diameteical Tolerance | Weight of single ball in average | Surface hardness | Impact toughness | |||||
| (mm) | (mm) | (g) | (HRC) | (j/cm2 ) | |||||
| Φ20 | +2 -1 | 32 | 60-65 | ≥14 | |||||
| Φ25 | 64 | ||||||||
| Φ30 | 110 | ||||||||
| Φ40 | 263 | ||||||||
| Φ50 | 513 | ||||||||
| Φ60 | +3 -2 | 888 | |||||||
| Φ70 | 1410 | ||||||||
| Φ80 | 2104 | ||||||||
| Φ90 | 2996 | ||||||||
| Φ100 | 4110 | ||||||||
| Φ125 | +3 -3 | 8027 | 58-63 | ||||||
SGS inspection can be conducted before shipment.
1. Packing Details: Steel drums (850-930kgs/drum) or Flexible container bags(1ton/bag)
2. Delivery Details: Within 15-25 days after received the prepayment or LC at sight.
