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Model:-
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B2 D50MM Surface Hardness 58-61HRC Smaller Grain Microstructure Super Grinding-Resisting Hot Rolled Steel Ball
Quick detail:
Steel ball size: d50mm
Surface hardness: 58-61hrc
Core hardness: 56-59hrc
Impact toughness: ≥35 j/cm2
Good tougness, no broken
Description:
Raw meterial: round steel bar
Raw meterial type: b2
Steel ball size: 50mm
Surface hardness: 58-61hrc
Core hardness: 56-59hrc
Good tougness, no break
Useage: grinding media
Good surface roundress, no surface defects.
Falling impact: 20,000 times
Performance comparation:
- Hot rolled steel ball can save usage 40-50% than low chrome casting ball(chrome percent: 5%), improve outlet 15% at least than low chrome casting ball.
- Hot rolled steel ball can save usage 20-25% than medium chrome casting ball(chrome percent: 5% ~ 10%), improve outlet 15% than medium chrome casting ball.
- Hot rolled steel ball can save usage 10% than high chrome casting ball(chrome percent: 5% ~ 10%), improve outlet 15% than high chrome casting ball.
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) |
| 50 | +1.5 -2.5 | 58~61 | 56~59 | ≥20 |
