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Round Steel Bar D20mm Grinding Media Balls Core hardness 55-59hrc Grinding Media No Break
Quick detail:
| 1Steel ball size: d20mm 2 Surface hardness: 58-62hrc 3 Core hardness: 55-59hrc 4 Good tougness: no broken 5 Raw meterial: round steel bar 6 Raw meterial type: b2 7 Good tougness, no break 8 Useage: grinding media |
Description:
Steel ball size: 20mm
Surface hardness: 58-62hrc
Core hardness: 55-59hrc
Good surface roundress, no surface defects.
Falling impact: 20,000 times
Grinding Steel Balls of applications:
- Mines
- Cement plants
- Power stations
- Chemical industry
Specifications:
Chemical percent of raw meterial b2:
| C | Si | Mn | P | S | Cr | Co | Ni |
| 0.75 | 0.23 | 0.74 | 0.016 | 0.001 | 0.48 | 0.02 | 0.01 |
Steel ball data:
| Ball size (mm) | Size tolerance (mm) | Surfance hardness (hrc) | Core hardness (hrc) | Impact toughness (j/cm2) |
| 20 | +1.5 -2.0 | 58~62 | 55~59 | / |
D 20mm Grinding Media Balls / Carbon Steel Ball for Copper Mining High Hardness
