High chromium alloyed mini-balls

Detailed Product Description

product specification

Φ8	Φ10	Φ12	Φ15	Φ17	Φ20	Φ25	Φ30
Φ40	Φ50	Φ60	Φ70	Φ80	Φ90	Φ100	Φ110

chemical Composition(%)

Name	Desig-nation	Chemical Composition
		C	Si	Mn	Cr	P	S	MO	Al
Popular Grade	ZQCr10	1.8-3.2	0.3-1.2	0.3-1.0	10.5-13	≤0.10	≤0.1	min	min
		Cu	Ni	Nb	Ti	Zr	V	B	Mg
		min	min	min	min	min	min	min	min
Special Grade	ZQCr20	2.0-2.7	≤1.0	≤2.5	22-28	≤0.10	≤0.08	≤1.0
	ZQCr26	2.0-2.7	≤1.0	≤2.5	18-22	≤0.01	≤0.08	≤1.5
	ZQCr17	2.0-3.0	≤1.0	≤2.5	15-18	≤0.10	≤0.08	≤1.5
	ZQCr13	1.7-3.0	≤1.0	≤2.5	11-15	≤0.10	≤0.08	≤1.5

Propecties and Microstructure

Name	Designation	Hardness(HRC)		AK(j/cm2)	Microsture	Times of Falling Balls
		Yes(A)	NO(A)
Hight Chromium Cast Grinding Balls	ZQCr26	≥56	≥45	≥4.0	M+C	≥10000
	ZQCr20	≥56	≥45	≥4.0		≥10000
	ZQCr17	≥56	≥45	≥4.0		≥10000
High Chromium Cast Grinding Balls	ZQCr12	≥56	≥45	≥4.0		≥10000
M-martensite     C-carbide