High Cr Cast Iron Grinding Balls Forged Steel Ball for Mine Mills Casting Steel Media

• Material: 45#, 60mn, 65mn, B2, B3, B4, etc
• Content: 75% ~ 80%
• Usage: Machinery, Chemical, Grind, Refractory Material, Mine, Cement Plant, Power Station,Ball Mill, Sag M
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: KS-GB04
• Processing Type: Forging or Rolling
• Size: 25mm-150mm
• Color: Black
• Customized: Customized
• Typical Application: Chemical Industry,Mine, Cement Plant,
• Package: Steel Drums(with Pallet) ;Container Bags
• Keywords: Forged Steel Grinding Ball
• Transport Package: Carton Box/Jumbo Bag
• Specification: 25mm-150mm
• Trademark: ksourceep
• Origin: China
• HS Code: 7326110000
• Production Capacity: 2000 Ton/Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

High Quality forged balls for grinding 

From D20 to D150, from  carbon steel to Cr steel and Mn Steel or  B2 B3 B6,
Packed  by single drum/pallet or double drum/pallet, just simply tell us your need and we'll settle down! 

Producing process:
1. After checking and testing the round alloy steel bar material,the production can be started according to the size
of the steel ball
2.The steel forging is heated to a certain temperature by intermediating with frequency furnace to ensure the
effective generation of variables in the forging;  
3.The red-hot steel forging is sent into the air hammer and processed by skilled operators.  
4.After forging the red hot steel ball immediately into  specially designed heat treatment equipment
for quenching and tempering heat treatment, the high and uniform hardness value of the steel ball can be ensured.
 

 

Product Parameters

Production Technology

Chemical components

Chemical Components
Type	Chemical components
	C	Mn	Si	Cr	S	P
45#	0.42-0.48	0.50-0.80	0.17-0.37	≤0.25	≤0.035	≤0.035
50Mn	0.48-0.56	0.70-1.00	0.17-0.37	≤0.25	≤0.035	≤0.035
60Mn	0.57-0.65	0.70-1.00	0.17-0.37	≤0.25	≤0.035	≤0.035
65Mn	0.62-0.70	0.90-1.20	0.17-0.37	≤0.25	≤0.035	≤0.035
B2	0.75-0.85	0.70-0.90	0.17-0.37	0.40-0.60	≤0.030	≤0.030
B3	0.55-0.65	0.75-0.90	0.20-0.37	0.85-1.20	≤0.030	≤0.030
B4	0.58-0.66	0.65-0.80	1.60-1.90	0.70-0.90	≤0.030	≤0.030
B6	0.97-1.03	1.00-1.10	0.20-0.30	0.50-0.60	≤0.025	≤0.025

 

Mechanical Properties
Material	Hardness(HRC)						Impact	Falling Times
	Φ20-Φ50		Φ60-Φ90		Φ100-Φ150
	Surface	Core	Surface	Core	Surface	Core
45#	≥54	≥36	≥54	≥34	≥52	≥30	≥15	≥22000
50Mn	≥58	≥38	≥58	≥36	≥55	≥32	≥15	≥22000
60Mn	≥60	≥42	≥60	≥40	≥58	≥36	≥15	≥22000
65Mn	≥60	≥42	≥60	≥40	≥58	≥36	≥15	≥22000
B2	≥60	≥60	≥60	≥50	≥60	≥46	≥15	≥22000
B3	≥60	≥60	≥60	≥50	≥60	≥48	≥15	≥22000
B4	≥60	≥60	≥60	≥55	≥60	≥52	≥15	≥22000
B6	≥60	≥60	≥60	≥59	≥60	≥55	≥15	≥22000

Grinding media ball Index

Inch	Size		T weight	Tolerance(mm)	Material	Surface hardness(HRC)	Volume hardness(HRC)
3/4"	D20MM		0.037+/-0.005	2+/-1	B2	63-66	63-66
1"	D25MM		0.072+/-0.01	2+/-1	B2	63-66	63-66
11/4"	D30MM		0.13+/-0.02	2+/-1	B2	63-66	63-66
11/2"	D40MM		0.30+/-0.04	2+/-1	B2	62-66	62-66
2"	D50MM		0.6+/-0.05	2+/-1	B2	62-65	61-64
21/2"	D60MM		1.0+/-0.05	2+/-1.5	B2	62-65	60-62
21/2"	D65MM		1.3+/-0.05	2+/-1.5	B2	61-64	60-62
21/2"	D65MM		1.3+/-0.05	2+/-1.5	B3	61-63	60-62
3"	D75MM		2.0+/-0.06	3+/-2	B3	61-63	60-62
3"(Hot rolled)	D80MM		2.0+/-0.06	3+/-2	B3	60-63	60-62
3"(Forged)	D80MM		2.1+/-0.06	3+/-2	B3	60-62	53-57
31/2"	D90MM		3.0+/-0.07	3+/-2	B3	60-63	59-62
4"	D100MM		4.1+/-0.15	3+/-2	B3	60-63	59-62
4.5"	D115MM		6.3+/-0.15	3+/-2	B3	60-63	57-60
5"	D125MM		8.1+/-0.3	3+/-2	B3	59-62	55-60