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Zhong wei casted grinding steel ball

Name: Zhong wei casted grinding steel ball
Brand: Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Rating: 4.3 (7 reviews)

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Model No. :	ZWA
Brand Name :	ZW
Material :	Chrome 10-15
Content :	>90%
Usage :	Grind
Processing Type :	Rolling Type
Size :	Big
Color :	Black
Customized :	Customized
Diameter :	20-150mm
Technical :	Casting
Products :	High Chrome Cast Ball
Application :	Mining, Cement Plant, Power Station
Breakeage Rate :	No Break
Microstructure :	M+B+C

6yrs

Jinan, Shandong, China

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Product description

Zhong wei casted grinding steel ball

ZW cast ball chemical composition and hardness:

1. Chemical Composition

Name	Material	Chemical elements						Hardness
Name	Material	C	Si	Mn	S	P	Cr	HRC
Cast iron ball	Special cr1	2.0-3.0	＜1.0	0.5-2.0	≤0.06	≤0.06	＞20	60-65
	Special cr2	2.0-3.0	＜1.0	0.5-2.0	≤0.06	≤0.06	＞15	58-64
	High Cr	2.0-3.2	＜1.0	0.5-2.5	≤0.06	≤0.06	＞10	58-63
	Medium Cr	2.0-3.2	＜1.0	0.5-2.5	≤0.06	≤0.06	≥5	48-55
	Low Cr	2.2-3.4	≤1.2	0.5-1.5	≤0.06	≤0.06	1.0-1.5	45-50

2. Hardness

Name	Material	Chemical elements						Hardness
Name	Material	C	Si	Mn	S	P	Cr	HRC
Cast iron ball	Special cr1	2.0-3.0	＜1.0	0.5-2.0	≤0.06	≤0.06	＞20	60-65
	Special cr2	2.0-3.0	＜1.0	0.5-2.0	≤0.06	≤0.06	＞15	58-64
	High Cr	2.0-3.2	＜1.0	0.5-2.5	≤0.06	≤0.06	＞10	58-63
	Medium Cr	2.0-3.2	＜1.0	0.5-2.5	≤0.06	≤0.06	≥5	48-55
	Low Cr	2.2-3.4	≤1.2	0.5-1.5	≤0.06	≤0.06	1.0-1.5	45-50

ZW cast ball types:

According to the different chemical elements , Cast balls can be divided into Low Cr,Medium Cr and High Cr. At present, the above materials are widely used all over the world, that’s the conventional materials, if there are special needs, can be customized.

Cast ball production process:

Casting balls are melted in electric furnace and poured into moulds after scientific proportioning. High chromium cast balls are also processed by oil quenching.

The difference of the forged ball and cast ball

① Different production line

② Different raw material

③ Different chemical element

④ Different core hardness and core hardness

Weight of Cast Iron Balls

(mm) Nominal diameter	(mm) Diametrical Tolerance	（kg） Approx weight per ball	Average number per MT
20	+1，—0.5	0.033	30303
25	+1，—0.5	0.064	15635
30	+2.0，—1.0	0.11	9090
40	+2.0，—1.0	0.261	3831
50	+2.0，—1.0	0.510	1961
60	+2.0，—1.0	0.883	1132
70	+3.0，—1.5	1.402	713
80	+3.0，—1.5	2.092	478
90	+3.0，—1.5	2.98	335
100	+3.0，—1.5	4.087	244
110	+3.0，—1.5	5.44	183
120	+3.0，—1.5	7.062	141

The grind rate of the cast balls when grinding the cement

Material	Abrasion	Breakage	Size(mm)
Low Chrome Cast Ball	85-105g Cast Balls /Ton Cement	<2%	10-150mm
Medium Chrome Cast Ball	50-80g Cast Balls /Ton Cement	<1.5%	10-150mm
High Chrome Cast Ball	35-60g Cast Balls/Ton Cement	<1%	10-120mm
High Chrome Cylpebs	35-60g Cylpebs/Ton Cement	<1.5%	12×18-35×40
Low Chrome Cylpebs	65-95g Cylpebs/Ton Cement	<1%	12×18-35×40
Micro Cylpebs	6×6 8×8 10×10 12×12 15×15

FAQ

1. Can you provide samples for free?
Answer: Yes, Free Sample.

2. Are you a manufacturer or a trading company?
Answer: We are a manufacturer, and we have independent export qualification.

3. What kind of payment you can accept?
Answer: T/T , L/C, Paypal,Western Union

4. How about your quality control?
Answer: 100% check before delivery to ensure the products quality.