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Ningguo Sifang Steel Ball Die & Equipment Manufacturing Co., Ltd
Add: Meilin Industrial Park, Ningguo City Anhui
Tel： 0563-4600636
Fax：0563-4600036
Phone：13731931111
manager：yinshengcao |
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| Sifang Steel Ball |
Specifications and weight
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Dia（mm） |
Weight/each(kg) |
No./ton(pcs) |
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Φ10 |
0.0135 |
74073 |
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Φ12 |
0.0181 |
55248 |
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Φ15 |
0.0242 |
41322 |
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Φ20 |
0.0322 |
31056 |
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Φ25 |
0.063 |
15873 |
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Φ30 |
0.11 |
9091 |
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Φ40 |
0.257 |
3891 |
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Φ50 |
0.50 |
2000 |
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Φ60 |
0.867 |
1153 |
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Φ70 |
1.37 |
729 |
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Φ80 |
2.05 |
487 |
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Φ90 |
2.90 |
345 |
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Φ100 |
4.00 |
250 |
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Φ110 |
5.30 |
188 |
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Φ120 |
6.80 |
147 |
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Φ125 |
7.75 |
129 |
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Φ130 |
8.74 |
114 |
Mechanical properties and metallurgical structure
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Model |
Mechanical properties |
Metallurgical structure |
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HRC |
The degree of ball-drop |
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Low-chromium casting strip |
≥45 |
≥8000 |
P+C |
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Medium-chromium casting strip |
≥50 |
≥12000 |
P+C |
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High-chromium casting strip |
≥55 |
≥15000 |
M+C |
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Super high-chromium casting strip |
≥60 |
≥22000 |
M+C |
Chemical composition
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Model |
Chemical composition |
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C |
Si |
Mn |
Cr |
Mo |
Cu |
P |
S |
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Low-chromium casting strip |
2.2-3.5 |
≤1.2 |
≤1.5 |
0.8-3.5 |
≤1.0 |
≤0.5 |
≤0.15 |
≤0.15 |
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Medium-chromium casting strip |
2.0-3.3 |
≤1.2 |
≤1.8 |
4.0-9.0 |
≤1.5 |
≤1.0 |
≤0.15 |
≤0.15 |
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High-chromium casting strip |
1.6-3.3 |
≤1.0 |
≤2.5 |
10-18 |
≤1.0 |
≤1.5 |
≤0.10 |
≤0.10 |
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Super high-chromium casting strip |
2.0-3.3 |
≤1.0 |
≤2.5 |
22-25 |
＜2.0 |
≤1.5 |
≤0.10 |
≤0.10 | |
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