Best Price Grinding Ball 20 to 120 mm Cast Iron Ball Forged Steel Ball for Mining Grinding Rocks Powder

Product Description

Best price grinding ball 20 to 120 mm cast iron ball forged steel ball for mining grinding rocks powder

Product Description

Our grinding balls have many excellent properties, such as high hardness, light specific gravity, high
toughness, less broken, great shock-absorbing, high performance of anti-fatigue and the strong ability of
shocking hardened layer. It's widely used in the field of cement and building materials, thermal powder,
the grinding mill of the beneficiation, steel and chemical industry, aerated bricks and alumina industry.

Grinding ball and grinding cylpebs are grinding media of the grinding machine. Their main function is to
grind the material in the grinding machine to meet the use standard.


We can produce three types of wear-resistant steel balls: forged steel balls, cast steel balls,
and hot-rolled steel balls.

CASTING GRINDING BALLS:

Diameter 10mm-160mm, Hardness 46-68HRC, Breakage rate: <0.5%.
The life of high chrome balls are 2-3 times of forged balls.
We produce the strong microscopic structure, for good performance.

FORGED GRINDING BALLS:

Diameter 20mm-160mm
Material-We use the high quality bar as raw material.
High end heat treatment technology, guarantee the long wear life.
From "tough surface" to "tough core".

GRINDING CYLPEBS:

Diameter 8mm-60mm.
High Hardness: 45-68HRC.
Low breakage: less than 0.5%.
Impact toughness: more than 12J/square centimeter.
Density: 7.8-7.85g/square centimeter.
Impact to broken(times): more than 18000.

Product Application

Grinding steel balls are widely used in ball mills in industries such as metallurgical mines, cement and
building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemicals,
coal water slurry, pellets, slag, ultrafine powder, fly ash, calcium carbonate, quartz sand, etc.

Product Parameters

Diameter Tolerance and Roundness
Nominal diameter	30	40	50	60	70	80	90
Tolerance(mm)	±2				+3,-2
Roundness (%)	≤2				≤3

Nominal diameter	100	110	120	125	150
Tolerance(mm)	+4,-3				+5,-4
Roundness (%)	≤4				≤5

Chemical Composition
Brand	C(%)	Si(%)	Mn(%)	Cr(%)	Cu(%)	Mo(%)	P(%)	S(%)	Ni(%)
45#	0.42-0.50	0.17-0.37	0.5-0.80	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
40Mn	0.37-0.44	0.17-0.37	0.7-1.0	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
50Mn	0.48-0.56	0.17-0.37	0.60-1.0	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
60Mn	0.57-0.65	0.17-0.37	0.70-1.0	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
65Mn	0.62-0.70	0.17-0.37	0.90-1.0	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
70Mn	0.67-0.75	0.17-0.37	0.90-1.20	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
40Cr	0.37-0.45	0.17-0.37	0.50-0.8	0.80-1.1	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
42CrMo	0.38-0.45	0.17-0.37	0.50-0.80	0.90-1.2	0-0.03	0.15-0.25	0-0.035	0-0.035	0-0.30
70Cr2	0.65-0.75	0.20-0.30	0.75-0.90	0.55-0.70	0-0.25	0-0.30	0-0.030	0-0.030	0-0.30
40Mn2	0.37-0.44	0.17-0.37	1.4-1.8	0-0.25	0-0.25	0-0.30	0-0.035	0-0.30	0-0.30
70Mn2	0.65-0.75	0.20-0.45	1.4-1.8	0-0.25	0-0.25	0-0.30	0-0.035	0-0.030	0-0.30
B-1	0.52-0.65	0.17-0.37	0.60-1.2	0-0.25	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
B-2	0.70-0.80	0.17-0.37	0.70-0.80	0.50-0.60	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
B-3	0.58-0.66	1.2-1.6	0.65-0.80	0.70-0.90	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
B-4	0.60-0.65	1.6-1.7	0.7-0.8	0.7-0.8	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
B-6	0.75-0.85	0.2-0.40	0.9-1.0	0.85-0.95	0-0.25	0.06-0.13	0-0.035	02-0.035	0.06-0.13
B-6A	0.82-0.95	0.20-0.40	0.92-1.02	0.80-0.95	0-0.25	0.06-0.10	0-0.035	0-0.035	0.06-0.10
B-7	0.35-0.40	0.17-0.37	0.7-0.8	0.9-1.0	0-0.25	0-0.30	0-0.035	0-0.035	0-0.30
BU	0.95-1.05	0.17-0.37	0.9-1.10	0.40-0.60	0-0.15	0-0.05	0-0.035	0-0.035	0-0.30
Gr15	0.95-1.05	0.15-0.35	0.20-0.40	1.30-1.65	0-0.25	0-0.10	0-0.027	0-0.020	0-0.10

Technical Specification
Brand	Breakage rate	Hardness(HRC)	Impact value(J/cm²)	Drop times	Micro structure
45#	<1%	≥45	≥12	≥8000	M+C
40Mn	<1%	≥50	≥12	≥10000	M+C
50Mn	<1%	≥55	≥12	≥10000	M+C
60Mn	<1%	≥55	≥12	≥12000	M+C
65Mn	<1%	≥58	≥12	≥12000	M+C
70Mn	<1%	≥60	≥12	≥12000	M+C
40Cr	<1%	≥55	≥12	≥12000	M+C
42CrMo	<1%	≥55	≥12	≥12000	M+C
70Cr2	<1%	≥58	≥12	≥12000	M+C
40Mn2	<1%	≥55	≥12	≥12000	M+C
70Mn2	<1%	≥58	≥12	≥12000	M+C
B-1	<1%	≥55	≥12	≥12000	M+C
B-2	<1%	≥58	≥12	≥15000	M+C
B-3	<1%	≥60	≥12	≥15000	M+C
B-4	<1%	≥60	≥12	≥15000	M+C
B-6	<1%	≥60	≥12	≥15000	M+C
B-6A	<1%	≥60	≥12	≥15000	M+C
B-7	<1%	≥60	≥12	≥15000	M+C
BU	<1%	≥60	≥12	≥15000	M+C
Gr15	<1%	≥60	≥12	≥15000	M+C

Packaging & Shipping

1.Professional export transport packaging
2. Packing according to customer requirements
3.Transportation: express delivery, land transportation, sea transportation, air transportation

Company Profile

ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED has 30 years of experience in R & D and
design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has
passed the ISO quality, environment and safety management system certification.  The company is
committed to the R & D, production and service of refractories used in metallurgy, electric power,
nonferrous metals, building materials, chemical industry and other industries.  Its products cover 198
kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall
solutions for refractories for 1200 domestic and 200 foreign customers. The products are mainly all kinds
of stereotyped and amorphous refractories, with full refractory physical and chemical index testing
equipment and testing system, through ISO quality, environment, safety three management systems.

Rongsheng Refractory has established complete quality system and conducted quality control through
the whole staff and process that from raw materials, production, check and various parts strictly according
to ISO9001 standard.Annual production capacity is up to 60000 tons. There are light and heavy weight
materials production lines and all kinds of complete production, testing and check equipment.


Rongsheng Refractory insists on pursuing the management idea of "honest, courtesy, innovation and
professionalism" as the purpose, taking the "low price for better quality" as the foundation of enterprise
development and creating "Rongsheng Brand" as the enterprise strategic goal. And Rongsheng provides
satisfying, timely and efficient service for customers based on scientific management process, complete
customer information management system and abundant products types.


We have a large scale, strong strength, and rich experience, professional technology, and perfect customer
service, and have obtained various certifications such as CE/ISO9001/ISO45001.