Specifications
1:Forged Balls for SAG Mills and Grinding Mills2:diameter:20~150mm3:HRC:50~65
4:material:steel
5:ISO9001:2008
c) Grinding resistant, d) high impact value
e) High combined efficiency of grinding mill
Application fields
b) Metallurgical selection in mine
C) Grinding coal in power plate
D) Chemical industry and machinery
CHEMICAL ELEMENTS
C | Si | Mn | Cr | S | p |
0.50~0.65 | 0.15~0.37 | 0.6~1.2 | <=0.25 | <=0.04 | <=0.04 |
0.7~0.9 | 0.45~0.75 | 0.7~1.25 | 0.11~0.4 | <=0.04 | <=0.04 |
SPECIFICATION AND HARDNESS OF FORGING BALL
Nominal diameter(mm) | Diametrical tolerance(mm) | Weight of single forging ball in average(g) | Number of piece of one ton forging ball in average | Surface hardness(HRC) | IMPACT TIUGHNESS(j/cm2) |
dia20 dia25 dia30 dia40 dia50 | +2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 | 50~65 | >=12 |
dia60 dia70 dia80 dia90 dia100 | +3 -2 | 888 1410 2104 2996 4110 | 1126 709 475 333 243 | 50~65 | >=12 |
dia110 dia120 dia130 | +4 -2 | 5457 7102 9030 | 182 140 110 | 45~60 | >=12 |
dia140 dia150 | +4 -3 | 11278 13871 | 88 72 | 45~60 | >=12 |
Physical Property of Forged Steel Ball
Name | Materials | Impact Test(Ak.J/cm²) | Endurance Test Times(5m/T) | Surface Hardness (Φ25mm- Φ60mm) | Core Hardness (Φ25mm- Φ60mm) | Surface Hardness (Φ70mm- Φ100mm) | Core Hardness (Φ70mm- Φ100mm) | Breakage |
DZ-1 | 50Mn | ≥12 | ≥10000 | ≥56 | ≥35 | ≥56 | ≥28 | <1% |
DZ-2 | 60Mn | ≥13 | ≥10000 | ≥58 | ≥38 | ≥58 | ≥29 | <1% |
DZ-3 | 65Mn | ≥15 | ≥12000 | ≥60 | ≥42 | ≥60 | ≥30 | <1% |
DZ-4 | B2 | ≥17 | ≥12000 | ≥60 | ≥52 | ≥60 | ≥50 | <1% |
DZ-5 | 75SiMn | ≥16 | ≥12000 | ≥60 | ≥50 | ≥60 | ≥48 | <1% |
DZ-6 | Wear-resistant Alloy | ≥17 | ≥12000 | ≥60 | ≥54 | ≥60 | ≥52 | <1% |
Forged steel grinding balls raw materials: 60Mn, 65Mn, B-II.
Packing
Certificate of quality
The implementation of product standards
YB/T091-2005
The production process
The main products
Production and Detection equipment