High Chromium Grinding Ball for Harsh Grinding Conditions 1/2 Inch, 3/4 Inch, 1 Inch, 1.5 Inch, 2 Inch, 2.5 Inch, 3 Inch, 3.5 Inch, 4 Inch, 4.5 Inch, 5 Inch

• Customization: Available
• Material: Iron
• Content: 75% ~ 80%
• Model NO.: 12mm to 130mm
• Usage: Grind, Cement, Mining
• Processing Type: Casting
• Size: Iron
• Color: Black
• Customized: Customized
• Hardness: 60-65
• Breakage: 1%
• Heat Treatment: Heat Treated
• High Chrome: 10-28
• Low Chrome: 1-3
• Transport Package: Bag or Drum
• Specification: 12mm to 130mm
• Trademark: JINCHI
• Origin: China
• HS Code: 7325910000
• Production Capacity: 100000 Tons Per Year

Product Description

We proudly stand as the leading pioneer in the manufacturing of High Chromium and Low Chrome Casting Steel Balls. Since our establishment in 1995, we have been dedicated to serving diverse industries such as cement, mineral processing, power plants, and chemicals for over two decades, consistently delivering excellence and quality.
 

Product Parameters

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	19-30	≤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	≥5
Medium-Cr	≥50	≥12000	M+C	≥5
High-Cr	≥58	≥15000	M+C	≥5
Superhigh-Cr	≥60	≥22000	M+C	≥5
P-Pearlite  C-Carbide    M-Martensite

 

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

Manufacturing process

 

With a chromium content of ≥10.0%, these are classified as high chromium balls. Adhering to national standards, our high chromium balls boast a hardness (HRC) exceeding 58 and an impact value AK of ≥3.0J/2. These balls undergo rigorous high-temperature quenching followed by tempering treatment to ensure durability and strength.
Those with a chromium content of 1-3% are identified as low chromium balls, offering reliable performance in various applications.

Detailed Photos

After Sales Service

Our company offers a comprehensive pre-sales and after-sales service system, dedicated to providing our customers with not only efficient and complete service but also a swift response to their needs. This commitment has secured us a lasting and esteemed reputation.

Packaging & Shipping

1. Available in bags weighing between 1000-2000KG
2. Delivered in drums ranging from 850-950KG