Grinding Steel Ball for Sag and AG Mill

• Material: Steel
• Content: >90%
• Usage: Grind
• Processing Type: Hot Rolling , Forging and Casting
• Size: 20mm-150mm
• Color: Black
• Model NO.: 20MM TO 150MM
• Customized: Customized
• Certification: SGS BV TUV
• Transport Package: Drum and Bag
• Specification: ISO
• Trademark: ZHONGWEI
• Origin: Jinan
• HS Code: 73261100
• Production Capacity: 70000 Tongs

Product Description

Grinding Steel ball for Sag and AG Mill
OUR CUSTOMERS

AS A PROFESSIONAL STEEL BALL PRODUCER, WE HAVE SUCESSFULLY ACHIEVED CUSTOMERS FROM MANY PARTS OF THE WORLD.   WE PROVIDE QUALITY HOT ROLLING BALLS FOR EUROPEAN COUNTRIES AND  QUALITY FORGING BALLS FOR SOUTH AMERICA AND AUSTRALIA.  WE ALSO PROVIDE BALLS FOR SOME EASTERN EUROPE COUNTRIES AND SOUTH EAST COUNTRIES. SOME AFRICAN COUNTRIES AND ALSO OUR CUSTOMERS.

FORGED STEEL BALL CHEMICAL ELEMENTS AND HARDNESS
 

Material	Chemical elements
	C	Si	Mn	P/S	Cr
B2	0.72-0.85	0.17-0.37	0.7-1.0	<0.04	0.4-0.6
60Mn	0.55-0.65	0.17-0.37	0.7-1.0	<0.04	<0.25
45#	0.42-0.50	0.17-0.37	0.5-0.8	<0.035	≤0.25
B3	0.58-0.66	1.6-1.9	0.65-0.8	<0.025	0.7-0.9

 

Material	25mm-50mm HRC		60mm-90mm HRC		100mm-125mm HRC
	Surface	Core	Surface	Core	Surface	Core
B2	60-65	58-62	58-63	50-55	56-60	40-45
60Mn	58-63	55-60	58-63	40-45	56-60	30-35
45#	55-58	45-55	55-58	30-35	50-55	25-30
B3					58-62	56-60

Weight and Microstructure of Forged Balls
 

(mm) Nominal diameter	(mm) Diametrical Tolerance	(kg) Approx weight     per ball	Average number per MT	Microstructure
25	+1.5,-0.5	0.064	15625	M+B+C (M-Martensite; B-Bainitic;C-Carbide)
30	+1.5,-0.5	0.11	9090
40	+2.0,-1.0	0.26	3846
50	+2.0,-1.0	0.51	1961
60	+3.0,-2.0	0.89	1124
70	+3.0,-2.0	1.4	714
80	+3.0,-2.0	2.1	476
90	+3.0,-2.0	3	333
100	+4.0,-3.0	4.1	244
110	+4.0,-3.0	5.47	283
120	+4.0,-3.0	7.1	141
130	+4.0,-3.0	9.02	111