grinding media for export From jinan jinchi
USD $650 - $750 /Metric Ton
Min.Order:10 Metric Tons
Jinan Jinchi Steel Ball Co., Ltd.
Product performance:
a).Even hardness b).Unbreakable c).grinding resistant d).High impact value
e).High combined efficiency of grinding mill
Chemical composition:
Item | C | Cr | Si | Mn | S | P | Cu | Mo | Ni | Hardness |
Element | 0.6-1.2% | ≤ 1.0 | 0.15-0.6 | 0.6-1.5 | ≤ 0.04 | ≤0.04 | ≤0.1 | ≤0.25 | ≤0.1 | 55-65 |
Specification and hardness of forging ball
Nominal diameter (mm) | Diametrical tolerance (mm) | Weight of signal forging Ball in average (g) | Number of piece of one ton forging ball in average | Surface hardness (HRC) | Impact toughness (j/cm²)) |
φ20 φ25 φ30 φ40 φ50 | +2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1946 |
50-65 |
≥12 |
φ60 φ70 φ80 φ90 φ100 | +3 -2 | 888 1410 2104 2996 4110 | 1126 709 475 333 243 | ||
φ110 φ120 φ130 | +4 -2 | 5457 7102 9030 | 182 140 110 |
45-60 | |
φ140 φ150 | +4 -3 | 11278 13871 | 88 72 |
Delivery detail:within 15days after received the prepayment or L/C
Package:steel drum(800-900kg per drum) or flexible container bag(1000kg per bag)