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grinding ball for mining cast, 1.delivery on time, 2.high hardness, 3.low breakage, 4.good appearance - details see: https://www.machineto.com/grinding-ball-for-mining-cast-10316813

Applied fields of Casting Grinding Ball

a).Mines

b).Cement Plant

c).Chemical Industries

d).Power Stations

ZW-Type and Chemical Composition of Cast Grinding Ball
Name	Material	C	Si	Cr	Mn	S	P	Mo	Al	Micrstructure
ZW-7	Specialhi-CrI	2.0-2.8	≤1.0	22-32	0.5-2.0	≤0.06	≤0.08	micro	micro	M+C
ZW-8	Specialhi-CrII	2.0-2.8	≤1.0	17-22	0.5-2.0	≤0.06	≤0.08	micro	micro	M+C
ZW-9	Specialhi-CrIII	2.2-3.0	≤1.0	15-17	0.5-2.0	≤0.06	≤0.08	micro	micro	M+C
ZW-10	High-Cr	2.2-3.2	≤1.0	11-14	0.5-2.5	≤0.06	≤0.08	micro	micro	M+C
ZW-11	Medium-Cr	2.1-3.2	≤1.2	5-10	0.5-1.5	≤0.06	≤0.08	micro	micro	P+C
ZW-12	Low-Cr	2.2-3.5	≤1.2	1.5-3.0	0.5-1.5	≤0.06	≤0.08	micro	micro	P+C

ZW-Physical Proper of Cast Iron Ball
Name	Material	Impact Test Ak.J/cm2	Endurance Test times (5m)	Hardness(HRC)				Breakage
				Dia25mm-dia60mm		Dia70mm-dia100mm
				quenching	unquenching	quenching	unquenching
ZW-7	Specialhi-CrI	≥4	≥10000	≥60	≥49	≥60	≥48	<1%
ZW-8	Specialhi-CrII	≥4	≥10000	≥60	≥49	≥60	≥48	<1%
ZW-9	Specialhi-CrIII	≥4	≥10000	≥60	≥49	≥58	≥48	<1%
ZW-10	High-Cr	≥4	≥10000	≥58	≥49	≥56	≥48	<1%
ZW-11	Medium-Cr	≥4	≥8000	-	≥48	-	≥48	<1%
ZW-12	Low-Cr	≥4	≥8000	-	≥46	-