Delivery Time:7-45days according to your quantity.
Certification:ISO 9001:2008,ISO14001
Low Price Ball Mill Grinding Media Ball For Iron / Copper Ore Industry

Breif Description:

Size: 20-150mm Inspection: SGS/BV/TUV

Origin: Shandong Province, China

High Hardness: The surface hardness of forged and rolling balls is to 60-65 HRC and volume hardness is to 60-63 HRC

High Impact Toughness: The impact toughness is more than 12 J/cm2; 

Low Broken Rate: The actual broken rate is not higher than 1%;

Even Wear-resistance: The loss of ball round rate is 50-300 g/ton.

Chemical composition:

Brand	Material	C	Mn	Si	Cr	S	P
TITLE-1	50MN	0.48-0.56	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
TITLE-2	60MN	0.57-0.65	0.70-1.0	0.17-0.37	≤0.25	≤0.030	≤0.030
TITLE-3	65MN	0.60-0.70	0.90-1.20	0.17-0.37	≤0.25	≤0.030	≤0.030
TITLE-4	75Mn	0.72-0.92	0.90-1.20	0.17-0.37	≤0.25	≤0.030	≤0.030
TITLE-5	75MnCr(B2)	0.72-0.85	0.70-1.20	0.17-0.37	0.42-0.85	≤0.030	≤0.030
TITLE-6	75SiMn	0.70-0.90	0.7-1.2	0.4-0.8	≤0.25	≤0.030	≤0.030
TITLE-7	B3	0.5-0.65	0.4-1.0	1.4-1.8	0.77-1.10	≤0.030	≤0.030

Specifications:

Ball diameter	Diameter tolerance	Weight of single ball in average	Number of piece of one ton ball in average	Surface hardness	Core hardness	Impact toughness
(mm)	(mm)	(g)	(pcs)	(HRC)	(HRC)	(J/cm2)
Φ20	+2,-1	32	31250	60-67	57-62	≥12
Φ25	+2,-1	64	15625	60-67	57-62	≥12
Φ30	+2,-1	110	9090	60-67	57-62	≥12
Φ40	+2,-1	263	3802	60-67	57-62	≥12
Φ50	+2,-1	513	1949	60-67	57-62	≥12
Φ60	+3,-2	888	1126	58-65	50-56	≥12
Φ70	+3,-2	1410	709	58-65	50-56	≥12
Φ80	+3,-2	2104	475	58-65	50-56	≥12
Φ90	+3,-2	2996	333	58-65	50-56	≥12
Φ100	+3,-2	4110	243	58-65	50-56	≥12
Φ110	+4,-2	5457	182	55-63	48-55	≥12
Φ120	+4,-2	7102	140	55-63	48-55	≥12
Φ130	+4,-2	9030	110	55-63	48-55	≥12
Φ140	+4,-2	11278	88	55-63	45-50	≥12
Φ150	+4,-2	13871	72	55-63	45-50	≥12

Prodcution Line:

1.Traditional Hammer Forging: Raw material-Cutting-Heating-Forging-Quenching-Tempering-Testing-Packing

2. Hot Rolling

Testing:

Quality control for each production shift (4hours/Shift);

Hardness, chemical elements and impact testing after production for each production shift;

SGS –third party testing before each delivery

Packing:

Container bags(Net weight:1000KGS) or Steel drums(850-900KGS) or in clients' requirements

Our advantage:

1. All of the grinding material can do the well-know and most professional in grinding media industry test certificate: SGS

2. All products are our own production,