Product Details

65mm uniform hardness forged steel balls for ball mill apply to power plant

Product Description

Specification of ADI Grinding Balls
Nominal Diameter	Diametrical Tolerance	Weight of Single Ball in Average	Surface Hardness	Impact Toughness
(mm)	(mm)	(g)	(HRC)	(J/cm²)
Φ20	+2 -1	32	60-64	7-10
Φ25		64
Φ30		110
Φ40		263
Φ50		513
Φ60	+3 -2	888
Φ70		1410
Φ80		2104
Φ90		2996
Φ100		4110
Φ110	+4 -2	5457
Φ120		7102
Φ130		9030
Φ140	+4 -3	11278
Φ150	+4 -3	13871

Chemical Composition (%)

C	Si	Mn	Cr	Ni	Cu	Mo	S	P
3.3-3.9	2.2-3.0	2.3-2.9	1.0	0.2-0.5	0.4-1.0	0.3-0.8	0.03-0.05	0.03-0.05

1. Key Indicators

Description	Properties			Metallographic Structure	Falling- ball Impact Fatigue Life
	Hardness (HRC)		AK (J/cm²)		≤Φ100	>Φ100
	Superficial	Center
ADI Grinding Ball	64	60	7-10	B+A+Carbide	≥18000	≥15000

2. Production Process

Advantages

1. Characteristics and Advantages

Properties contrast with other type grinding balls:

Description	Properties			Metallographic Structure	Falling-Ball Impact Fatigue Life
	Superficial Hardness (HRC)	AK (J/Cm²)
ADI Grinding Ball	≥60		≥7	B+A+ Carbide	<Φ100	≥18000
					≥Φ100	≥15000
Low-Cr Ball	≥45		≥2.5	P + Carbide	>5000
Medium-Cr Ball	≥47		≥2.5	P + Carbide	<Φ80	≥13000
					≥Φ80	≥6000
High-Cr Ball	≥55		≥2.5	M + Carbide	<Φ80	≥15000
					≥Φ80	≥10000
Forged Ball	≥47		≥10	P + Carbide	----	----