Ball Mill Grinding Steel Balls Used on Mine
Product Description
Forged grinding ball information:
1. Grade: 45#,50Mn,60Mn,65Mn,B2,B3,BL,BG
2. Diameter: 20mm-150mm
3. Hardness: HRC 55-65
4. Breakage Rate:<0.5%
5. Impact Value: >12j/Cm^2
6. Falling ball times: ≥20000s
Forged(Rolling) Steel Ball Classification and Chemical Composition
Name | C | Mn | Si | S | P | Cr |
SY-01-45# | 0.42-0.48 | 0.50-0.80 | 0.17-0.37 | 0.05max | 0.05max | 0.15max |
SY-02-50Mn | 0.48-0.56 | 0.65-1.00 | 0.17-0.37 | 0.05max | 0.05max | 0.15max |
SY-03-60Mn | 0.57-0.65 | 0.70-1.10 | 0.17-0.37 | 0.05max | 0.05max | 0.25max |
SY-04-65Mn | 0.62-0.75 | 0.90-1.20 | 0.17-0.37 | 0.05max | 0.05max | 0.25max |
SY-05-B2 | 0.75-0.85 | 0.70-0.90 | 0.17-0.35 | 0.05max | 0.05max | 0.40-0.60 |
SY-06-B3 | 0.50-0.65 | 0.40-1.00 | 1.35-1.85 | 0.05max | 0.05max | 0.80-1.20 |
SY-07-BL | 0.55-0.75 | 0.65-0.85 | 0.15-0.35 | 0.05max | 0.05max | 0.70-1.20 |
SY-08-BG | 0.90-1.05 | 0.35-0.95 | 0.15-0.35 | 0.05max | 0.05max | 1.0-1.70 |
Grinding forged steel ball Mechanical Propety
Name | Impact Value AK.J/cm2 | Dropping test(sm) | Hardness | |||||
Ф25-50(1"-2") | Ф60-90(2.5"-3.5") | Ф100-150(4"-6") | ||||||
Surface | Core | Surface | Core | Surface | Core | |||
SY-01-45# | ≥12 | ≥20,000 | ≥55 | ≥38 | ≥50 | ≥35 | ≥45 | ≥25 |
SY-02-50Mn | ≥12 | ≥20,000 | ≥56 | ≥40 | ≥56 | ≥35 | ≥50 | ≥30 |
SY-03-60Mn | ≥12 | ≥20,000 | ≥58 | ≥45 | ≥58 | ≥38 | ≥52 | ≥35 |
SY-04-65Mn | ≥12 | ≥20,000 | ≥60 | ≥52 | ≥60 | ≥42 | ≥53 | ≥36 |
SY-05-B2 | ≥12 | ≥20,000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥55 | ≥48 |
SY-06-B3 | ≥12 | ≥20,000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥58 | ≥53 |
SY-07-BL | ≥12 | ≥20,000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥58 | ≥55 |
SY-08-BG | ≥12 | ≥20,000 | ≥60 | ≥60 | ≥60 | ≥60 | ≥60 | ≥60 |