High Impact Value Forged Grinding Media Steel Balls / Hot Rolling Steel Ball 30mm

Delivery Time:20 DAYS
Certification:Sgs

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

Description:

Raw meterial: round steel bar

Raw meterial type: b2

Steel ball size: 30mm

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

Quick detail:

Steel ball size: d30mm

Surface hardness: 58-61hrc

Core hardness: 56-59hrc

Good tougness, no broken

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)
30	+1.5 -2.0	58~61	56~59	/

Steel ball production flow:

Competitive advantage:

Top high cost performance;

Save annual steel ball use qty;

Increase outlet.