1. Feature of our grinding balls as follows:
1) High Hardness: Surface hardness: HRC60-68 HRC, volume hardness HRC60-65.
2) High Impact Toughness: The impact toughness of our grinding balls is more than 12 J / cm2.
3) Low Broken Rate: the actual broken rate is not higher than 1%.
4) Good wear-resistant and lower wear rate.
2. Applied fields of our grinding balls:
a) Mines;
b) Cement plants;
c) Power stations;
d) Chemical industry
3. Specifications of our grinding balls as follows:
|
PRODUCTS
|
SURFACE
HARDNESS
|
CORE
HARDNESS
|
CHEMICAL COMPOSITION
|
|
1) 60Mn Forged grinding ball
|
HRC58-65
|
≥HRC45
|
C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2;
S & P: 0.04Max; Cr: 0.25Max
|
|
2) B2 Forged grinding ball
|
HRC60-68
|
≥HRC55
|
C: 0.75-0.90; Si:0.17-0.37; Mn:0.7-0.9;
P: 0.035 MAX; S: 0.035MAX; Cr:0.40-0.70.
|
|
3) B3 Forged grinding ball
|
HRC60-68
|
≥HRC55
|
C:0.55-0.65; Si:0.2-0.37; Mn:0.75-0.9;
Cr:0.85-1.2;S/P≤0.03;
|
|
4) B4 Forged grinding ball
|
HRC60-68
|
≥HRC58
|
C:0.58-0.66; Si:1.6-1.9; Mn:0.65-0.80; Cr:0.7-0.9; S/P≤0.03;
|
|
5) High chrome cast grinding ball
|
HRC60-65
|
≥HRC58
|
Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5;
S & P:0.10Max;
|
|
6) Low chrome cast grinding ball
|
HRC48-55
|
≥HRC46
|
Cr:1-3; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5;
S & P:0.10Max;
|
|
7) Medium chrome cast grinding ball
|
HRC55-63
|
≥HRC55
|
Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5;
S & P:0.10Max;
|
