jaw crusher

High Chrome Cast Grinding Iron Balls

【Introduction】:
Good quality used in Mining, Cement, Power Plant
【 Capacity 】:
50, 000Tons/Year
【Improvement】:
1. Diameter: 10mm-150mm.
2. High Hardness: surface hardness of casting balls is to 60-68 HRC and volume hardness of foundry steel balls is to 60-63 HRC.
3. High Impact Toughness: the impact toughness of high chrome grinding media is more than 6 AJ/cm2.
4. Low Broken Rate: the actual broken rate is not higher than 1%.
5. Wear-resistant: the grinding lost of chrome steel balls is 30-600g/ton.

【Product Structure】

1) High Hardness: surface hardness of casting balls is to 60-68 HRC and volume hardness of foundry steel balls is to 60-63 HRC;

2) High Impact Toughness: the impact toughness of high chrome grinding media is more than 6 J/cm2;

3) Low Broken Rate: the actual broken rate is not higher than 1%;

4) Wear-resistant: the grinding lost of chrome steel balls is 30-600g/ton.


【Technical Parameters】

Chemical   Components
TypeChemical components
CSiMnCrMoCuPS
Low-Cr1.8-3.31.50.3-1.51-3≤1.00.80.100.10
Medium-Cr1.8-3.31.20.3-1.54-9≤1.50.80.100.10
High-Cr1.8-3.31.20.3-1.510-18≤1.01.20.100.06
Superhigh-Cr1.8-3.3≤1.20.3-1.519-35≤2.01.2≤0.100.06
Mechanical Properties and Microstructure
TypeHardnessFalling timesMicrostructureImpact Toughness
Low-Cr≥45≥8000M+C≥6
Medium-Cr≥5012000M+C≥6
High-Cr≥58≥15000M+C≥6
Superhigh-Cr≥60≥22000M+C≥6
P-Pearlite  C-Carbide    M-Martensite

Nominal DiameterDiameter ToleranceWeight of Single Ball In AverageNumbers of Per Ton Ball In Average
(mm)(Inch)(mm)(g)
200.75''+2 
-1
3231250
251''6415625
301.25''1109090
401.5''2633802
502''5131949
602.5''+3 
-2
8881126
702.751410709
803.25''2104475
903.5''2996333
1004''4110243
1104.5''+4 
-2
5457182
1204.75''7102140
1305''9030110
1405.5''+4 
-3
1127888
1506''1387172

【Main Process of Casting Grinding Ball】

High Chrome Cast Balls(图1)

【Solutions】

1) Cement Plant

2) Mines (Gold, Copper, Iron, Molybdenum, Lead, Zinc, etc)

3) Power station



【Testing】

High Chrome Cast Balls(图2)



【Package】


(1) Container Bags: 1000KGS/Bag

(2) Steel Drums: 850-900KGS/Drum


High Chrome Cast Balls(图3)