Casting grinding ball

Chemical   Components
Type	Chemical components
	C	Si	Mn	Cr	Mo	Cu	P	S
Low-Cr	1.8-3.3	≤1.5	0.3-1.5	1-3	≤1.0	≤0.8	≤0.10	≤0.10
Medium-Cr	1.8-3.3	≤1.2	0.3-1.5	4-9	≤1.5	≤0.8	≤0.10	≤0.10
High-Cr	1.8-3.3	≤1.2	0.3-1.5	10-18	≤1.0	≤1.2	≤0.10	≤0.06
Superhigh-Cr	1.8-3.3	≤1.2	0.3-1.5	19-35	≤2.0	≤1.2	≤0.10	≤0.06

Mechanical Properties and Microstructure
Type		Hardness		Falling times		Microstructure		Impact Toughness
Low-Cr		≥45		≥8000		M+C		≥6
Medium-Cr		≥50		≥12000		M+C		≥6
High-Cr		≥58		≥15000		M+C		≥6
Superhigh-Cr		≥60		≥22000		M+C		≥6
P-Pearlite  C-Carbide    M-Martensite

 

Nominal Diameter		Diameter Tolerance	Weight of Single Ball In Average	Numbers of Per Ton Ball In Average
(mm)	(Inch)	(mm)	(g)
20	0.75''	+2  -1	32	31250
25	1''		64	15625
30	1.25''		110	9090
40	1.5''		263	3802
50	2''		513	1949
60	2.5''	+3  -2	888	1126
70	2.75		1410	709
80	3.25''		2104	475
90	3.5''		2996	333
100	4''		4110	243
110	4.5''	+4  -2	5457	182
120	4.75''		7102	140
130	5''		9030	110
140	5.5''	+4  -3	11278	88
150	6''		13871	72

Hot Product

1. Testing Machine
2. Certification
 

Production Line

Packaging & Shipping

 

Application

FAQ

1. Which kind of steel balls that you produce?

Our main products are high chrome cast grinding balls, forged balls, grinding cylpebs.

2. What's your warranty?

1 year.

3. Can you provide free sample?

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

4. How about your quality control?

In order to ensure the quality, we have strict quality control system.

a) We will test when purchase the raw materials.

b) We will test the products when finished. 

5. What's your wear rate and breakage rate?
In different application areas, the wear rate is different. But the breakage rate is less than 0.5%.

6. Do you have any certificate?

Yes, our company has ISO 19001:2008 certificate.

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

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