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 | â¤1.2 | 0.3~1.5 | >23~30 | â¤0.10 | â¤0.06 |
ZQCr20 | 2.0~3.3 | â¤1.2 | 0.3~1.5 | >18~23 | â¤0.10 | â¤0.06 | |
ZQCr15 | 2.0~3.3 | â¤1.2 | 0.5~1.5 | >14~18 | â¤0.10 | â¤0.06 | |
ZQCr12 | 2.0~3.3 | â¤1.2 | 0.5~1.5 | >10~14 | â¤0.10 | â¤0.06 | |
ZQCr8 | 2.1~3.3 | <2.2 | 0.3~1.5 | 7~10 | â¤0.10 | â¤0.06 | |
ZQCr5 | 2.1~3.3 | <1.5 | 0.3~1.5 | 4~6 | â¤0.10 | â¤0.10 | |
ZQCr2 | 2.1~3.6 | <1.5 | 0.3~1.5 | 1~3 | â¤0.10 | â¤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 | â¥15000 | ||
ZQCr20 | >58 | >56 | M+C | â¥15000 | |||
ZQCr15 | >58 | >56 | M+C | â¥15000 | |||
ZQCr12 | >58 | >56 | M+C | â¥15000 | |||
ZQCr8 | >50 | >47 | P+C | â¥10000 | |||
ZQCr5 | >48 | >45 | P+C | â¥10000 | |||
ZQCr2 | >46 | >45 | P+C | â¥10000 | |||
M-Martensite P-Pearlite C-Carbide | |||||||
Tolerance of Diameter | |||||||
Diameter | Φ10-Φ25 | 25<Φ<60 | 60<Φâ¤100 | 100<Φ | |||
Tolerance of Diameter | +1.0 | +1.5 | +2.0 | +3.0 | |||
-1.0 | -1.0 | -1.0 | -1.0 |