Delivery Time:10-14 days
Certification:Sgs

Round Steel Bar Hot Rolling Steel Ball Surface Hardness 58 - 62hrc  B2 D20mm for Cement plants

Quick detail:

Raw meterial:	round steel bar
Steel ball size:	d20mm
Surface hardness:	58-62hrc
Core hardness:	56-60hrc

Hot Rolling Steel Balls  Of  Good tougness : no broken

Description:

Raw meterial: round steel bar

Raw meterial type: b2

Steel ball size: 20mm

Surface hardness: 58-62hrc

Core hardness: 56-60hrc

Good tougness, no break

Useage: grinding media

Good surface roundress, no surface defects.

Falling impact: ﹥20,000 times

Applications: 

Mines Cement plants Power stations Chemical industry

Performance comparation:

Hot rolled steel ball can save usage 40-50% than low chrome casting ball(chrome percent: 5%), improve outlet 10% 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 10% than medium chrome casting ball Hot rolled steel ball can save usage 10% than high chrome casting ball(chrome percent: 5% ~ 10%), improve outlet 10% than high chrome casting ball.

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	56~60	/

Steel ball production flow:

Hot Rolling Steel Balls  of   line picture:

Competitive advantage:

Top high cost performance;

Save annual steel ball use qty;

Increase outlet.