Xuzhou H&G Wear-resistant Material Co., Ltd. was established in 1989

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High Chrome Alloyed Grinding Balls

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Products Description
Grinding Media is widely used in cement, metal mining, power plant and chemical industry etc. The hardness reaches up to 66HRC(the surface and core hardness tolerance could be controlled within 2HRC),which makes the optimum wear resistance against abrasion and corrosion. 
There is no standard solution for mineral industry and wear rate of grinding media varies from mine to mine, ore to ore and even for the same ore time to time.
The choice of grinding media Spec is determined upon:
1.The mineral ground 
2.The mill data and liner used 
3.The wear mechanical (Impact ,Abrasion ,Corrosion)
Based on our world wide experience, H&G can help select optimum alloy for specific application ranging from Chromium 10 to 26% and Hardness ranging from 58 to 66 RC.
 
Chemical Elements
Name Chemical Elements (%)
C Si Mn Cr Mo Cu P S
Normal High Cr 2.0-3.3 ≤1.0 0.3-1.5 10-13 0-3.0 0-1.2 ≤0.06 ≤0.06
Special High Cr 2.0-3.3 ≤0.8 0.3-1.5 14-26 0-3.0 0-1.2 ≤0.06 ≤0.06

Physical Property & Microstructure
Name HRC Ak(J/cm2) Microstructure Ball size Times of falling
Normal High Cr ≥60 ≥4 M+C+A ≤Φ80 ≥15000
≤Φ80 ≥10000
M-Martensite      C-Carbide     A-Austenite

Size & Weight
Size(mm) Weight(kg/pc) Quantity(pc/t) Size(mm) Weight(kg/pc) Quantity(pc/t)
Φ30 0.11 9091 Φ90 2.90 345
Φ40 0.25 3891 Φ100 4.00 250
Φ50 0.50 2000 Φ110 5.30 188
Φ60 0.86 1153 Φ120 6.80 147
Φ70 1.37 729 Φ130 7.70 129
Φ80 2.05 487 Φ140 8.74 114

Note: Any need to adjust the chemical elements, or add alloying element, it would be agreed with contract.

 

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