10mm/20mm/30mm/40mm/50mm/60mm/70mm/80mm/90mm Casting Iron Balls Grinding Media Ball Grade Cr10-28, Breakage Rate Less Than 1%

• Customization: Available
• Standard: JIS, GB, DIN, BS, ASTM, AISI
• Application: Construction Machinery, Metallurgical Machinery, Cement Plant, Mining Machine, Thermal Power Plant, Coal Yard
• Model NO.: DIA: 10mm-130mm
• Material: Iron
• Type: Wear Resistant Casting
• Breakage Rate: <1%
• Impact Value: >4j/Cm^2
• Grade: Cr10--28
• Hardness: 58-65HRC
• Microstructure: M+C
• Falling Ball Times: >10000
• Cast Ball Chrome: Cr1.0-28.0
• Heat Treatment: Quenching +Tempering
• Transport Package: Container Ton Bags or Steel Drums
• Specification: Size: 10mm-150mm
• Trademark: JINCHI
• Origin: China
• HS Code: 73261100
• Production Capacity: 100000tons/Year

Product Description

Introducing JINCHI Products/Suppliers: Factory-Direct Pricing on Mines Equipment Cast Iron Ball Mill Grinding Media Steel Balls. Experience unmatched value and quality.
Shandong Jinchi Heavy Industry Joint-Stock Co., LtdShandong Jinchi Heavy Industry takes pride as a premier manufacturer, specializing in first-class grinding products. Immerse in our impressive selection, which encompasses: Grinding Media ForgedSteel Balls, Casting Steel Balls,Grinding Rods, Grinding Cylpebs, Crafted with unparalleled precision, our products meet international standards, supported by state-of-the-art facilities with a phenomenal annual capacity exceeding 100,000 tons.

We eagerly anticipate your next inquiry into our grinding balls. Rest assured, competitive pricing will be promptly provided upon request.

Why Choose Us
High We procure high-quality raw materials straight from reputable large steel mills, ensuring unmatched product excellence.
Advanced Our cutting-edge automatic production lines promise consistent, reliable manufacturing quality every time.
Strict stringent quality management processes, coupled with outstanding after-sales service, guarantee enduring customer satisfaction.
More Our over two decades of industry experience equip us with unmatched expertise and insight.
Advanced Our sophisticated, precise lab equipment ensures detailed testing and thorough quality assurance.
ISO9001, ISO14001, ISO45001, SGS certifications underscore our dedication to quality and environmental integrity.
Four -hour access to Qingdao port facilitates swift, efficient export logistics, enhancing your experience.

Chemical Composition of forged steel balls

Materials	C%	Si%	Mn%	P%	S%	Cr%
B2	0.70-0.85	0.17-0.37	0.70-1.00	≤0.035	≤0.035	0.4-0.6
B2-1	0.55-0.70	0.15-0.30	0.65-0.85	≤0.020	≤0.020	0.70-1.10
High Carbon B2	0.85-1.10	0.15-0.45	0.40-1.20	≤0.035	≤0.035	0.20-1.10
B3	0.58-0.66	1.70-1.90	0.68-0.80	≤0.030	≤0.030	0.78-0.90
45#	0.42-0.50	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.25max
B4	0.65-0.75	1.20-1.40	0.50-0.70	≤0.025	≤0.025	0.85-1.00
B6	0.75-0.90	0.17-0.37	0.8-1.02	≤0.035	≤0.035	0.88-0.98
B6-1	0.82-0.90	0.15-0.35	0.90-1.05	≤0.020	≤0.020	0.88-0.98
42CrMo	0.38-0.45	0.20-0.40	0.50-0.80	≤0.035	≤0.035	0.90-1.20
40Cr	0.37-0.45	0.20-0.40	0.50-0.80	≤0.035	≤0.035	0.80-1.10
65MN	0.62-0.70	0.17-0.37	0.90-1.20	≤0.035	≤0.035	≤0.25
60MN	0.57-0.65	0.17-0.37	0.70-1.00	≤0.035	≤0.035	≤0.25
50MN	0.48-0.56	0.17-0.37	0.70-1.00	≤0.035	≤0.035	≤0.25

Specification ofGood Wear Resistance Forged Grinding Media Steel Mill Balls

Diameter(mm)	Diameter Tolerance(mm)	Surface Hardness(HRC)	Impact Toughness(j/cm2)
Φ20	+2, -1	>60HRC	≥12
Φ25
Φ30
Φ40
Φ50
Φ60	+3, -2
Φ70
Φ80
Φ90
Φ100	+4, -2
Φ110
Φ120		>58HRC
Φ130
Φ140	+4, -3	>55HRC
Φ150

Advantages:

1.Material Quality: By sourcing steel from Laigang Group and JIYUAN, leading Chinese steel companies for grinding balls, we guarantee superior material integrity.

2. Product Range: Our diverse portfolio serves a wide array of customer needs with both cast and forged options, ensuring a comprehensive selection.

3. Capacity: Our robust production capacity, at approximately 100,000 MT, ensures seamless, dependable media delivery.

4. Production Facility: Our advanced automatic production lines maintain exceptional consistency in product quality.

5. Delivery: Thanks to our efficient automated production system, we assure prompt delivery post-order confirmation, often within 14 days, subject to requirements.

6. Quality Control: Our dedicated laboratory, equipped with cutting-edge testing equipment, ensures every production step meets rigorous quality standards.


Manufacturing Process



Discover JINCHI's exceptional offerings: Factory Priced Iron Ball Mill Grinding Media and Steel Balls for mining equipment, designed with precision and excellence.

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

Nominal diameter (mm)	Weight of single ball  in average (g)	Quantity/ MT	Surface hardness	Endurance impact test (Times)
Φ15	13.8	72549	>60	>10000
Φ17	20.1	49838		>10000
Φ20	32.7	30607		>10000
Φ25	64	15671		>10000
Φ30	110	9069		>10000
Φ40	261	3826		>10000
Φ50	510	1959		>10000
Φ60	882	1134		>10000
Φ70	1401	714		>10000
Φ80	2091	478	>58	>10000
Φ90	2977	336		>10000
Φ100	4084	245		>8000
Φ120	7057	142		>8000
Φ130	8740	115		>8000

Our Credentials


Frequently Asked Questions

Q1: What makes your company stand out in the industry?

A: With an impressive legacy of 28 years, we specialize in crafting premium steel balls, showcasing our profound expertise and commitment to quality.

Q2. Which international markets do you serve?

A: Our global footprint extends across Mexico, Canada, Brazil, Tanzania, Congo, South Africa, Mali, Cote d'Ivoire, Mauritania, Chile, Peru, Philippines, Ecuador, Ghana, Finland, South Korea, India, Australia, and more. We proudly operate branch offices in Australia as well.

Q3: Are you a trading company or do you manufacture in-house?

A: We are a dedicated manufacturing facility.

Q4: What is your typical delivery timeframe?

A: Our efficient production process ensures delivery within 10-15 days, contingent on order quantity.

Q5: Do you offer samples, and are they complimentary?

A: Certainly, we provide samples at no additional charge, although freight costs are to be borne by the recipient.

Q6: What are your payment terms?

Our flexible payment options include T/T with 30% upfront and 70% upon B/L copy.
Alternatively, we accept L/C with a 100% Irrevocable Letter of Credit at sight.