Introduction
Casting steel ball diameter from 20-150mm with high hardness, low wear,
low broken rate, strong heat resistant and corrosion resistance, chromium content
from 1%-28%, HRC45-63,.Detailed specifications can be customized according
to customer demand. It is particularly used in cement industry working in the grinder with high temperature,high crushing and strong abrasion .
The grinding ball with chromium content 1% - 3% and hardness HRC ≥45 called
low chromium alloy cast ball. Low chromium ball is produced by the intermediate frequency electric furnace smelting, metal mold or sand casting .
Features
Good toughness, low abrasion rate, low broken rate ,low chromium ball hardness can reach 45-55HRC
Specification
Ball Diameter(mm) |
Φ10 | Φ12.7 | Φ15 | Φ17 | Φ20 | Φ25 | Φ30 | Φ40 | Φ50 |
Φ60 | Φ70 | Φ80 | Φ90 | Φ100 | Φ110 | Φ120 | Φ125 | Φ130 |
Chemical Coposition |
ZQCr2 | C | Si | Mn | Cr | Mo | P | S |
2.2-3.5 | 0.3-1.4 | 0.2-1.5 | 0.3-3.0 | ≦1.0 | ≦0.15 | ≦0.15 |
Properties and Microstructure |
Designation | HRC | Impact Value(J/ J/cm²) | Microstructure | Times of Falling Balls |
ZQCr2 |
≧46 |
≧1.5 | P+C | ≧15000 |
