Low chrome cast grinding ball

RTZQCr2

RTZQCr2 – Low chrome cast grinding ball

Specification

Ball Diameter(mm)
¢10 ¢12.7 ¢15 ¢17 ¢20 ¢25 ¢30 ¢40 ¢50 ¢60 ¢70 ¢80 ¢90 ¢100 ¢110 ¢120 ¢125 ¢130

Chemical Composition

Designation Chemical Composition
C Si Mn Cr Mo P S
RTZQCr2 2.2-3.5 0.3-1.4 0.2-1.5 0.3-3.0 ≤1.0 ≤0.15 ≤0.15

Mechanical Properties and Microstructure

Designation (HRC) Ak(J/cm2) Microstructure Time of Falling Balls
(B)
RTZQCr2 ≥46 ≥1.5 P+C ≥15000