Rolled and Forged Grinding Steel Ball 20mm - 160mm for Mining and Cement Mill JBYM30 manufacturer from China Jiangyin Jibang Machinery Co.,Ltd.

Place of Origin:

Zhejiang, China (Mainland)

Product Detail

Model No.: JBYM30

Power stations B2 D30MM Forged Grinding Steel Ball Surface Hardness 58-61hcr grinding media

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Power stations B2 D30MM Forged Grinding Steel Ball Surface Hardness 58-61hcr grinding media

Quick detail:

Surface hardness: 58-61hrc

Core hardness: 56-59hrc

Good tougness, no broken

Good tougness : no break

Useage: grinding media

Raw meterial: round steel bar

Raw meterial type: b2

Steel ball size: d30mm

Forged Grinding Steel Ball of Applications: Mines Cement plants Power stations Chemical industry

Description:

Steel ball size: 30mm

Surface hardness: 58-61hrc

Good surface roundress, no surface defects.

Falling impact: 20,000 times

Core hardness: 56-59hrc

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)

+1.5

-2.0

58~61

56~59

Performance comparation:

Forged Grinding 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.
Forged Grinding steel ball can save usage 20-25% than medium chrome casting ball(chrome percent: 5% ~ 10%), improve outlet 15% than medium chrome casting ball
Forged Grinding steel ball can save usage 10% than high chrome casting ball(chrome percent: 5% ~ 10%), improve outlet 15% than high chrome casting ball.