Specification:
Φ12.7;Φ15;Φ17;Φ20;Φ25;Φ30;Φ40;Φ50;Φ60;Φ70;Φ80;Φ90;Φ100;Φ110;Φ120;Φ125;Φ130.Φ140
Ourmain products:
High chromium cast grinding balls
Medium chromium cast grinding balls
Low chromium cast grinding balls
A)Chemical Composition
HIGH-Cr
Mark
Chemical Composition
C
Si
Mn
Cr
P
S
Mo,Al,Cu,Ni,Nb,Ti,Zr,V,B,Mg
ZQCr10
1.8-3.2
0.3-1.2
0.3-1.0
10.0-10.5
≤0.10
≤0.10
Atom
ZQCr12
Composition varies under specific working conditions.
ZQCr15
ZQCr17
ZQCr10
HRC
Aj(j/cm²)
Times of Falling Balls
Microstructure
56-66
≥2.5
≥10000
M+C
M-Martensite C-Carbide
Specification
(mm)
10
12
12.7
15
20
25
30
40
50
60
70
80
90
100
110
120
MEDIUM-Cr
Chemical Composition
C
Si
Mn
Cr
P
S
Mo,Al,Cu,Ni,Nb,Ti,Zr,V,B,Mg
1.8-3.2
0.3-1.2
0.3-1.0
3.0-5.5
≤0.15
≤0.25
Atom
HRC
Aj(j/cm²)
Times of Falling Balls
Microstructure
≥48
≥2.0
≥7000
P+C
P-Pearlite C-Carbide
Specification
(mm)
The same to HIGH-Cr
LOW-Cr
Chemical Composition
C
Si
Mn
Cr
P
S
Mo,Al,Cu,Ni,Nb,Ti,Zr,V,B,Mg
2.0-3.5
≤1.2
≤1.0
0.5-1.5
≤0.15
≤0.25
Atom
HRC
Aj(j/cm²)
Times of Falling Balls
Microstructure
≥45
≥1.6
≥5000
P+C
P-Pearlite C-Carbide
Specification
(mm)
The same to HIGH-Cr