17-140mm Higher Hard Casting Grinding Balls

  17-140mm Higher Hard Casting Grinding Balls      high performance grinding media ball  1.Diameter: 25mm~150mm  2. Characteristics:   even hardness ,   no deformation ,   No breaking,   No mal-roundness ,   grinding resistant ,   low wear rate  3.Uing fields:   Metal Mines ,  Cement plants ,  Water coal slurry ,  Power stations ,   Chemical industry ,   Steel mills, etc. 4.Our services: Sample order also accept, we could offer the free sample .  We are looking forward to contacting and cooperation with all circles,and try our best to meet your special requirements, and supply you with our excellent quality products and services       Grinding ball and forgings specifications:      

Item		High chrome cast grinding balls,forgings			Middle chrome cast grinding balls,forgings	Low chrome cast grinding balls,forgings	Multielement cast grinding ball,forings
		ZQCr20	ZQCr17	ZQCr12	ZQCr8	ZQCr2
Chemical composition(%)	C	2.0-3.3	2.0-3.2	2.0-3.2	2.0-3.3	2.0-3.6	1.8-3.2
	Si	≤1.0	≤1.0	≤1.5	≤2.2	≤1.2	≤2.2
	Mn	0.3-1.5	0.3-1.5	0.3-1.5	0.3-1.5	0.1-1.5	0.1-1.5
	P	≤0.10	≤0.10	≤0.10	≤0.10	≤0.10	≤0.10
	S	≤0.06	≤0.06	≤0.06	≤0.06	≤0.06	≤0.06
	Cr	19-21	16-18	11-13	7-10	1.0-3.5	4-8
Mechanical property	AK(J/cm2)	≥6	≥5.5	≥5.0	≥4.5	≥3	≥4
	HRC	59-63	58-62	58-61	≥50	≥45	≥50
	Breakage   rate(%)	<0.1	<0.2	<0.2	<0.5	<1	<0.5
	Single chamber wear(g/t)	<20	<25	<25	<50	<50	<50
	Fatigue life (times)	>30000	>28000	>26000	>16000	>10000	>16000

 

Diameter(mm)	(mm)
Φ20	+2      -1
Φ25
Φ30
Φ40
Φ50
Φ60	+3    -2
Φ70
Φ80
Φ90
Φ100
Φ110	+4     -2
Φ120
Φ130
Φ140	+4    -3
Φ150

      Manufacturing Middle frequency furnace melting system:   Quenching processing:        Research and development:                  Casting production testing:     Plenty of supply: