Delivery Time:7-45days according to your quantity.
Certification:ISO 9001:2008,ISO14001

Grinding Steel Media Balls , Forging Steel ball , Forged Ball for mining
Specifications:
1.Diameter: 20mm-150mm
2.Hardness:HRC55-67
3.Certificate: ISO9001:2008/ISO14001
4.Breakage rate:<1%
5.Impact tes:>12J/CM2
6.Endurance test times>10000
 
Chemical Elements:

name	C	Si	Mn	P	S	Cr
60Mn	0.57-0.65	0.17-0.37	0.7-1.0	<0.035	<0.035	<0.25
65Mn	0.62-0.70	0.17-0.37	0.9-1.2	≤0.035	≤0.035	≤0.25
45#	0.42-0.50	0.17-0.37	0.5-0.8	-	-	< 0.2
42Cr	0.38-0.45	0.17-0.37	0.5-0.8	≤.035	≤0.035	09-1.2

  
 
Mechanical Properties:

Spec.	Impact Test AK.J/CM2	Endurance Test Times (5m)	Dia 25mm-60mm		Dia 70mm-100mm
			Surface	Core	Surface	Core
42Cr	≥12	≥10000	≥55	≥48	≥52	≥45
50Mn	≥12	≥10000	≥56	≥50	≥55	≥50
60MN	≥13	≥12000	≥58	≥52	≥58	≥50
65MN	≥15	≥12000	≥62	≥54	≥58	≥52

 
 
Specification and Hardness of Forged Grinding Ball:

Nominal diameter (mm-inches)	Diameteical tolerance (mm)	Weight of Single of forging ball in average	Number of piece of One ton forging ball in average	Surface hardness	Impact toughness
20-0.8” 25-1.0” 30-1.2” 40-1.6” 50-2.0”	+2 -1	32 64 110 263 513	31250 15625 9090 3802 1949	55-67	>12
60-2.4” 70-2.8” 80-3.2” 90-3.6” 100-4.0”	+3 -2	888 1410 2104 2996 4110	1126 709 475 333 243
110-4.4” 120-4.8” 130-5.2”	+4 -2	5457 7102 9030	182 140 110
140-5.6” 150-6.0”	+4 -3	11278 13871	88 72

 
 
Shipping :
1.By DHL/TNT express for sample order.Door to destination port or door to door ,
2.Shipping the goods by sea,and the goods can be loaded by FCL or LCL;
3.Appointed freight forwarder by customers is acceptable.
4.According to customer's request
 
Company Information
1.Professional Grinding balls Manufactory founded in 1998;
2.Advanced production equipment;
3.Exported more than 20 countries;
4.Experienced development personnel,professional designers,salesman and skilled workers
5.Capacity:10000mt/month.
 
Our Services
1.Free sample for your test before orders;
2.Soonest delivery time ;
3.Cooperate with many famours shipping companies,and sent the goods to your port in time;
4. Any feedback after sales would get our soonest reply.
 
WE LOOK FORWARD TO THE OPPORTUNITY TO DISCUSS HOW WE CAN BECOME A PARTNER IN  YOUR SUPPLY CHAIN  SOLUTION.