Title: Customized Ball Mill Wear Parts [Print this page] Author: tongx Time: 2017-11-15 17:28 Title: Customized Ball Mill Wear Parts High Hardness: Surface hardness of casting iron balls is to HRC 45-65.
Good Impact Toughness: Impact toughness of chrome balls is more than 3J/cm²;
Low Broken Rate: The actual broken rate is not higher than 1%;
Good Wear-resistant: 30-50g/ton in cement industry, 350-430g in gold mines
EO CASTINGS grinding balls 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.
Products Specifications
Common Names Grinding Balls
High Chromium Steel Balls
Wear Resistant Steel Balls
Main Materials High Chromium Castings
Chemical Composition(%)Designation C Si Mn Cr Mo P S
ZQCr262.0-2.8≤1.0≤1.522-28≤1.0≤0.10≤0.08
ZQCr202.0-2.8≤1.0≤1.518-22≤1.5≤0.10≤0.08
ZQCr172.0-3.0≤1.0≤1.515-18≤1.5≤0.10≤0.08
ZQCr132.0-3.2≤1.0≤1.510-15≤1.5≤0.10≤0.08
Properties and MicrostructureDesignation HARDNESS(HRC) ak(J/cm²) Microstructure Time of Falling Balls
A B
ZQCr26≧56≧45≧3.0M+C≧8000
ZQCr20≧56≧45≧3.0≧8000
ZQCr17≧56≧45≧3.0≧8000
ZQCr13≧56≧45≧2.5≧8000