Chromium Casting Iron Grinding Ball with Low Breakage Rate

• 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 premier manufacturer of high-quality products, continuously leading the industry with our innovative solutions. Chromium Excellence and Low Chrome Casting Steel Balls. Since our establishment in 1995, we have been dedicated to serving a wide range of industries, including cement, mineral processing, power plants, and chemicals, consistently for over two decades.

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

Our high chromium balls boast a chromium content of ≥10.0%, meeting national standards with impressive hardness (HRC) levels exceeding 58. Furthermore, they offer an outstanding impact value AK of ≥3.0J/2, achieved through meticulous high-temperature quenching and tempering treatments.
Low chromium balls, containing 1-3% chromium, provide a reliable option for various applications.

Detailed Photos

After Sales Service

Our company boasts a robust pre-sales and after-sales service system, dedicated to delivering efficient, comprehensive, and swift response solutions to our valued customers, earning us an enduring reputation for excellence and reliability.

Packaging & Shipping

1. Secure Bag Packaging (1000-2000KG capacity)
2. Durable Drum Packaging (850-950KG capacity)