Alloy casting grinding ball
Alloy casting grinding ball is higher hardness,lower wear rate,good toughness and less are widely used in mining, power plant, cement and magnetic materials industries.
In the using process, the surface hardness getting higher and the wear resistant getting strengthen, at the same time, the production capacity of ball mill getting improved.
Alloyed chrome cast grinding ball | |||||||
Chemical Composition | |||||||
Name | Designation | Chemical Composition(%) | |||||
C | Si | Mn | Cr | P | S | ||
Alloyed chrome cast grinding ball | ZQCr26 | 2.0~3.3 | ≤1.2 | 0.3~1.5 | >23~30 | ≤0.10 | ≤0.06 |
ZQCr20 | 2.0~3.3 | ≤1.2 | 0.3~1.5 | >18~23 | ≤0.10 | ≤0.06 | |
ZQCr15 | 2.0~3.3 | ≤1.2 | 0.5~1.5 | >14~18 | ≤0.10 | ≤0.06 | |
ZQCr12 | 2.0~3.3 | ≤1.2 | 0.5~1.5 | >10~14 | ≤0.10 | ≤0.06 | |
ZQCr8 | 2.1~3.3 | <2.2 | 0.3~1.5 | 7~10 | ≤0.10 | ≤0.06 | |
ZQCr5 | 2.1~3.3 | <1.5 | 0.3~1.5 | 4~6 | ≤0.10 | ≤0.10 | |
ZQCr2 | 2.1~3.6 | <1.5 | 0.3~1.5 | 1~3 | ≤0.10 | ≤0.10 | |
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sical Property | |||||||
Name | Designation | Surface Hardness | Core Hardness | Microstructure | Times of Falling Balls | ||
(HRC) | (HRC) | ||||||
Alloyed chrome cast grinding ball | ZQCr26 | >58 | >56 | M+C | ≥15000 | ||
ZQCr20 | >58 | >56 | M+C | ≥15000 | |||
ZQCr15 | >58 | >56 | M+C | ≥15000 | |||
ZQCr12 | >58 | >56 | M+C | ≥15000 | |||
ZQCr8 | >50 | >47 | P+C | ≥10000 | |||
ZQCr5 | >48 | >45 | P+C | ≥10000 | |||
ZQCr2 | >46 | >45 | P+C | ≥10000 | |||
M-Martensite P-Pearlite C-Carbide | |||||||
Tolerance of Diameter | |||||||
Diameter | &;10-&;25 | 25<&;<60 | 60<&;≤100 | 100<&; | |||
Tolerance of Diameter | +1.0 | +1.5 | +2.0 | +3.0 | |||
-1.0 | -1.0 | -1.0 | -1.0 |