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Cast iron grinding balls

Capacity : 4000t/month

Raw materials : steel

Application : POWER PLANT,CEMENT PLANT,mineral

Overview

Raw material cast iron grinding balls, wear resistant material
Technique: mould casting
Surface hardness: 45-65HRC
Breakage: ≤1%
Impact toughness :≥2.5J/CM2
Heat treatment: quenching and tempering
Drop times: >10,000
Chrome: 1-26%
Service: OEM available
Certificate: RoHS Directive-compliant

Parameters

Code Chemical Composition (Mass Fraction)
Cr C Si Mn Mo Cu V Ti P S
HYCrG1 10-16 2.0-3.5 ≤1.0 0.5-2.5 ≤1.0 ≤1.0 ≤0.3 ≤0.15 ≤0.1 ≤0.1
HYCrG2 16-22
HYCrG3 22-28

 

cast grinding steel ball should be in accordance with the following table.

Nominal  Diameter 20 25 30 40 50 60 70 80 90 100
Allowable Deviation of Diameter +2.0-1.0 +2.0-1.0 +3.5-1.0
Difference between the Maximum Diameter and Minimum Diameter ≤1.8 ≤2.4 ≤3.0 ≤3.6 ≤4.2 ≤4.6

The high chromium type of product can be manufactured with the mechanical properties following the requirements of customers.

Code Surface Hardness(HRC) Impact Test(Ak) Impact Fatigue life(Times)
HYCrG1 ≥58 ≥3 ≥10000
HYCrG2
HYCrG3

 

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