High Chrome Balls Low Price 120mm Grinding Ball for Mine

• Material: Iron
• Content: 100%
• Usage: Mine, Cement Plant, Power Station
• Processing Type: Forging and Casting
• Size: 20-150mm
• Color: Metallochrome
• Model NO.: 45#, 60MN, B2, B3
• Customized: Customized
• Raw Material Heating: by Electric Furance
• Heat Treatment Method: Oil/Air Quenching
• Certification: ISO9001:2008
• Transport Package: Container Bag, Steel Drum
• Specification: 20-150mm
• Trademark: Jinan zhongwei
• Origin: Shandong Jinan
• HS Code: 73261100
• Production Capacity: 1000000

Product Description

High Chrome Balls Low Price 120mm Grinding Ball for Mine

Chemical Elements:

Name	Material	Chemical elements						Hardness
		C	Si	Mn	S	P	Cr	HRC
Cast iron ball	Special cr1	2.0-3.0	<1.0	0.5-2.0	≤0.06	≤0.08	>20	58-64
	Special cr2	2.0-3.0	<1.0	0.5-2.0	≤0.06	≤0.08	>15	58-64
	High Cr	2.0-3.2	<1.0	0.5-2.5	≤0.06	≤0.08	>10	58-62
	Medium Cr	2.0-3.2	<1.0	0.5-2.5	≤0.06	≤0.08	≥5	45-48
	Low Cr	2.2-3.4	≤1.2	0.5-1.5	≤0.06	≤0.08	1.0-1.5	42-46

Weight of Cast Iron Balls
 

(mm) Nominal diameter	(mm) Diametrical Tolerance	(kg) Approx weight     per ball	Average number per MT
20	+1,-0.5	0.033	30303
25	+1,-0.5	0.064	15635
30	+2.0,-1.0	0.11	9090
40	+2.0,-1.0	0.261	3831
50	+2.0,-1.0	0.510	1961
60	+2.0,-1.0	0.883	1132
70	+3.0,-1.5	1.402	713
80	+3.0,-1.5	2.092	478
90	+3.0,-1.5	2.98	335
100	+3.0,-1.5	4.087	244
110	+3.0,-1.5	5.44	183
120	+3.0,-1.5	7.062	141

Packing
Steel drum (800-950kg per drum) &Container Bag (1000kg per bag) 
 
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