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Cast Grinding Iron Ball
  • Cast Grinding Iron Ball
  • Cast Grinding Iron Ball
  • Cast Grinding Iron Ball

Cast Grinding Iron Ball

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 3 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 50-700g/ton.

Product Details

1. Features of Casting Grinding Ball

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 3 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 50-700g/ton.

 

2. Chemical Composition of Casting Grinding Ball

NameModelMaterialC/%Si/%Mn/%Cr/%S/%P/%
TITLE-8High ChromeCr-23-32%1.8-2.8≤1.20.4-2.023-32≤0.01≤0.01
TITLE-9Cr-18-22%1.8-2.8≤1.20.4-2.018-22≤0.01≤0.01
TITLE-10Cr-15-17%1.8-3.0≤1.20.4-2.015-17≤0.01≤0.01
TITLE-11Cr-10-14%2.0-3.2≤1.20.4-2.010-14≤0.01≤0.01
TITLE-12Medium ChromeCr-5-9%2.1-3.2≤1.20.4-1.55-9≤0.01≤0.01
TITLE-13Low ChromeCr-1-4%2.2-3.5≤1.20.4-1.51-4≤0.02

≤0.02


3. Physical Property of Casting Ball

ModelHardness(HRC)Impact Test(Ak.J/cm2)Endurance Test Times(5m)Microstructure
QuenchingUnquenching
High Chrome≥60≥58≥3≥12000M+C
Medium Chrome-≥53≥2≥10000P+C
Low Chrome-≥50≥2≥10000P+C


4. Specification of Cast Grinding Ball

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


5. Main Process of Casting Grinding Ball

(1)Raw material (2)Scientific Proportioning (3)Electric Furnace Smelting (4)Assay Before Furnace (5)Mould Forming (6)Polishing (7)Heat Treatment (8)Qualified Products (9)Packing

 

6. Applied Field

1) Cement Plant

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

3) Coal Power station

4) Chemical Industries

5) Sag Mill, Ball mill


7. Packaging & Shipping

(1) Container Bags: 1000KGS/Bag


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

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