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Low Chrome Cast Grinding Iron Balls

【Introduction】:
Good quality used in Mining, Cement
【 Capacity 】:
50, 000Tons/Year
【Improvement】:
1. Diameter: 10mm-150mm.
2. High Hardness: surface hardness of casting balls is to 46-65 HRC and volume hardness of foundry steel balls is to 45-63 HRC.
3. High Impact Toughness: the impact toughness of low 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 60-800g/ton

【Product Structure】

1. Diameter: 10mm-150mm.

2. High Hardness: surface hardness of casting balls is to 46-65 HRC and volume hardness of foundry steel balls is to 45-63 HRC.

3. High Impact Toughness: the impact toughness of low 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 60-800g/ton



【Technical Parameters】

Chemical   Components
TypeChemical Components
CSiMnCrMoCuPS
Low-Cr1.8-3.31.50.3-1.51-31.00.80.100.10
Medium-Cr1.8-3.31.20.3-1.54-91.50.80.100.10
High-Cr1.8-3.31.20.3-1.510-181.01.20.100.06
Superhigh-Cr1.8-3.31.20.3-1.519-352.01.20.100.06

Mechanical   Properties and Microstructure
TypeHardnessFalling ball   timesMicrostructureImpact Toughness
Low-Cr45≥8000M+C≥6
Medium-Cr5012000M+C≥6
High-Cr5815000M+C≥6
Superhigh-Cr6022000M+C≥6
P-Pearlite  C-Carbide    M-Martensite
Diameter

Diameter ToleranceAverage Weight per BallAverage Numbers per Ton
mmInchmmg
200.75''+2/ -13231250
251''
6415625
301.25''
1119090
401.5''
2633802
502''5131949
602.5''+3/ -2888
1126
702.75''1410
709
803.25''2104
475
903.5''2996
333
1004''4111243
1104.5''
+4/ -25457
182
1204.75''
7102140
1255''8008125
1405.5''
+4/ -31127888
1506''1387172

【Main Process of Casting Grinding Ball】

Low Chrome Cast Grinding Iron Balls(图1)

【Solutions】

1) Cement Plant

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

3) Power Station


【Testing】

Low Chrome Cast Grinding Iron Balls(图2)

【Package】


(1) Container Bags: 1000KGS/Bag

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

Low Chrome Cast Grinding Iron Balls(图3)