Customized Ball Mill Wear Parts

tongx

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

Diameter Tolerance(mm)Φ8Φ10Φ12Φ15Φ17Φ20Φ25Φ30Φ40Φ50Φ60Φ70Φ80Φ90Φ100Φ110
±0.5±1±1.5+2，-1

NOTE: If modulating needed, metamorphic chemical ingredients&other alloying elements vary from products above, price would be as contract signed.Customized Ball Mill Wear Parts
website:http://www.eocastings.com/mining-machinery-parts/ball-mill-parts/