Hot Rolling / Forged Grinding Steel Ball for Mining and Cement Mill 58 - 61hrc Surface Hardness

B2 D30MM Surface Hardness 58-61HRC Grinding Steel Balls Smaller Grain Microstructure Super Grinding-Resisting 

Description:

Steel ball size: 30mm

Surface hardness: 58-61hrc

Good surface roundress, no surface defects.

Falling impact: ﹥20,000 times

Core hardness: 56-59hrc

Good tougness, no break

Useage: grinding media

Raw meterial: round steel bar

Raw meterial type: b2

Specifications:

Chemical percent of raw meterial b2:

Steel ball data:

Performance comparation:

1. 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.
2. 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
3. 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.

Competitive advantage:

Top high cost performance;

Save annual steel ball use qty;

Increase outlet.