Forged steel grinding media ball for ball mill (Dimensions: 12mm to 180mm)

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Categories	Casting Grinding ball
Brand	Junnan Steel
Material	Iron, Chrome Alloy, Iron Alloy
Hardness	60 - 65 hrc
Standard	DIN GB ISO JIS BA ANSI YB/T091-2005
Impact Toughness	12 J/cm² Min
Falling Test Times	12000 Times Min
Diameter range	8mm-150mm
Chemical Elements	C Si Mn P S Cr
Breakage Rate	0.5% MAX
Unit Price	US $ 500/ton
FOB port	Xingang /Caofeidian /any other main ports in China
付款条件	L/C, D/A, D/P, Western Union, MoneyGram, T/T
Update Time	2022-02-28

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Detail Information

Type and chemical composition

Model	Material	C	Mn	Si	Cr	S	P
High Chrome	Cr-23-32%	2.0-2.8	0.5-2.0	≤1.0	23-32	≤0.01	≤0.01
	Cr-18-22%	2.0-2.8	0.5-2.0	≤1.0	18-22	≤0.01	≤0.01
	Cr-15-17%	2.2-3.0	0.5-2.0	≤1.0	15-17	≤0.01	≤0.01
	Cr-10-14%	2.2-3.2	0.5 - -2.5	≤1.0	10-14	≤0.01	≤0.01
Medium Chrome	Cr-10-14%	2.1-3.2	0.5-1.5	≤1.2	5.0-9.0	≤0.01	≤0.01
Low Chrome	Cr-1-4%	2.2-3.5	0.5-1.5	≤1.2	1.0-4.0	≤0.02	≤0.02

Physical Property of Casting Grinding Ball

Model	Hardness(HRC)		Impact Test (Ak.J/cm2)	Endurance Test Times(5m)	Microstructure
Model	Quenching	Unquenching	Impact Test (Ak.J/cm2)	Endurance Test Times(5m)	Microstructure
High Chrome	≥60	≥58	≥17	≥15000	M+C
Medium Chrome	—	≥56	≥15	≥12000	P+C
Low Chrome	—	≥53	≥13	≥10000	P+C

Quality Control

Impact Test Machine

It is used to test Impact Test Value

Hardness Tester

It is used to test hardness

Wire-Electrode Cutting

It is sampling core from ball

The Process for Grinding Balls

(1)Raw material

(2)Scientific Proportioning

(3)Electric Furnace Smelting

(4)Assay Before Furnace

(5)Mold Forming

(6)Polishing

(7)Heat Treatment

(8)Qualified Products

(9)Packing (drum/barrel or bag)

Application

Packing & Shipping

Packing specification
Bag	diameter17-150mm	1000kg/bag
Drum	diameter17-25mm	1000kg/drum
	diameter30-50mm	950kg/drum
	diameter60-70mm	900kg/drum
	diameter80-90mm	850kg/drum
	diameter100-150mm	800kg/drum
20feet container	25bags or 25-32drums
40feet container	27bags or27-34drums

Service

FAQ for Grinding Ball

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q:Could you accept OEM and customization?

A:YES, we can customize for you according to sample or drawing.

Q: Do you like to accept small orders?

A:We enjoy growing up together with all our clients, whatever big or small. You will become bigger and bigger to be with us.

Q:What's your warranty?

A:1 year.

Q: Can you provide free sample?

A:Yes, we are glad to supply free samples which quantity is less than 10kgs. But usually the courier fee should be paid by customer.

Q:Do you have any certificate?

A:Yes, our company has ISO 19001:2008 certificate.

We could also supply customer the Test report, SGS by third party.

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