Competitive Price 3.5inch 4 5 6 Inch Forged Cast Steel Balls 70cr2 Grinding Media Ball for Ball Mill

• Customization: Available
• Material: Stainless Steel
• Content: >90%
• Model NO.: grinding media ball
• Processing Type: Isostatic Pressing Type
• Size: All Size
• Color: Black
• Customized: Customized
• Product Name: Grinding Media Ball
• Application: Mine, Steel, Chemical, Ball Mills
• Steel Ball Size: 10-150mm
• Breakage Rate: Less Than 0.5%
• Feature: Wear Resistance, Difficult Deformation an
• Advantage: Uniform Hardness Distribution, High Impac
• Roundness: ≤2-5
• Usage 1: Cement Plant, Power Plant,Ball Coal Machine
• Certifications: CE ISO
• Transport Package: 1. Industrial Package 2. Plastic Bag/Pallet/Outer
• Specification: Customizable
• Trademark: RONGSHENG
• Origin: China
• HS Code: 73261100
• Production Capacity: 10000t/Year

Product Description

Competitive price 3.5inch 4 5 6 inch forged cast steel balls 70cr2 grinding media ball for ball mill

Product Description

Forged Rolling Steel Ball Description

Heating the customed steel until the temperature reaches 1100C( +-50C) in the way of hot rolling and forging,the rollig forging machinery will put pressure on the metal blank and producing a grinding ball with certain mechanical property, shape and size . This is our processing methods of the grinding balls.

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

Grinding Steel Ball Features

Rongsheng is able to manufacture accurate-size, high-roundness,high-hard rolling balls. They have great wear resistance, difficult deformation and less broken, uniform hardness distribution, high impact toughness( over 12j/cm2).

Product Application

Grinding Steel Ball Applications

Grinding steel ball Mainly suitable for industries such as mining, steel, chemical industry, cement plants, power plants, ball coal machine, semi-automatic ball mills, and ball mills,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.