B2 D60MM Unbreakable Steel Grinding Ball for Mining , Steel Balls for Ball Mill Long Working Life JBNMHP60 manufacturer from China Jiangyin Jibang Machinery Co.,Ltd.

Place of Origin:

Zhejiang, China (Mainland)

Product Detail

Model No.: JBNMHP60

B2 D60MM Grinding Balls For Mining Surface Hardness 57-60HRC Smaller Grain Microstructure Super Grinding-Resisting </str

B2 D60MM Grinding Balls For Mining Surface Hardness 57-60HRC Smaller Grain Microstructure Super Grinding-Resisting

Quick detail:

Steel ball size: d60mm

Surface hardness: 57-60hrc

Core hardness: 55-58hrc

Impact toughness: ≥35 j/cm2

Good tougness, no broken

Description:

Raw meterial: round steel bar

Raw meterial type: b2

Steel ball size: 60mm

Surface hardness: 57-60hrc

Core hardness: 55-58hrc

Good tougness, no break

Useage: grinding media

Good surface roundress, no surface defects.

Falling impact: 20,000 times

Applications:

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

-2.5

57~60

54~57

≥25

Performance comparation:

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 40-50% than low chrome casting ball(chrome percent: 5%), improve outlet 15% at least than low chrome casting ball
.3Hot rolled steel ball can save usage 10% than high chrome casting ball(chrome percent: 5% ~ 10%), improve outlet 15% than high chrome casting ball

Steel ball production flow: