The surface hardness of low chromium cast steel ball produced by Jinan Houde wear resistant material Co., Ltd. is more than 45hrc. It has no deformation, no out of roundness, good toughness, less breakage and uniform hardness gradient distribution. The recovery rate of concentrate is high, the working efficiency of mill is improved, and the service time of mill liner is effectively extended. It is widely used in mineral processing, cement, building materials, chemical industry, ceramics and other industries.
chemical composition
|
name |
chemical composition |
|||||||
|
C |
Si |
Mn |
Cr |
Mo |
Cu |
P |
S |
|
|
Low chromium alloy casting ball |
2.2-2.5 |
≤1.2 |
≤1.5 |
0.8-3.5 |
≤1.0 |
≤0.5 |
≤0.15 |
≤0.15 |
Mechanical properties and microstructure
|
name |
surface hardness |
Impact value |
Metallographic structure |
Impact fatigue life of falling ball |
|
Low chromium alloy casting ball |
≥45 |
≥2.5 |
P+C |
≥8000 |
|
P-pearlite C-carbide |
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