Product Details

Delivery Time:3-5 days
Certification:CE,FCC,MSDS

20mm-180mm Grinding Ball Cast iron balls with ISO9001 made in China

Jinan zhongwei casting and forging grinding ball Co.,ltd, as the powerful grinder of world’s mining,

specializes in the production of the forged steel ball, cast iron ball, cylpebs and grinding rods, which

are widely used in the mining fields, chemical plant ,power station and building material industries .

We have exported to more than 20 countries such as South Africa, Australia, Chile, Kuwait, UAE,

Russia, Malaysia, Korea and Philippine etc.

Cast Iron Balls Chemical Elements( Below is common used type all over the world,if you have any other different requirement, please let me know,we can order from steel mill)

Material	Chemical Elements
C	Si	Mn	P	S	Cr
Speical Cr 2	2.0-3.0	< 1.0	0.5-2.0	<0.08	< 0.06	> 20
Speical Cr 1	2.0-3.0	< 1.0	0.5-2.0	<0.08	< 0.06	> 15
High Cr	2.0-3.2	< 1.0	0.5-2.5	<0.08	< 0.06	> 10
Medium Cr	2.0-3.2	< 1.0	0.5-2.5	<0.08	< 0.06	> 5
Low Cr	2.2-3.4	< 1.2	0.5-1.5	<0.08	< 0.06	1.0-1.5

Cast Iron Ball Hardness( Below is common used type all over the world,if you have any other different requirement, please let me know,we can order from steel mill)

Material	25mm-50mm HRC	60mm-70mm HRC	80mm-90mm HRC
60-64
Speical Cr 2	58-62	60-64
Speical Cr 1	58-62	58-62	58-62
High Cr	58-62	58-63	58-62
Medium Cr	45-48	45-48	45-48
Low Cr	42-46	42-46	42-46

Cast Iron Balls Weight

Specification of Grinding Ball
Diameter(mm)	Diametrical Tolerance(mm)	Weight/Ball(g)	Average Number/Ton
Φ20	+1.0,-1.0	32	30303
Φ25	+1.0,-1.0	64	15625
Φ30	+1.0,-1.0	116	9090
Φ40	+1.5,-1.0	263	3831
Φ50	+1.5,-1.0	513	1961
Φ60	+1.5,-1.0	888	1132
Φ70	+2.0,-1.0	1490	713
Φ80	+2.0,-1.0	2104	478
Φ90	+2.5,-1.5	2996	335
Φ100	+2.5,-1.5	4110	244
Φ110	+3.0,-1.0	5070	183
Φ120	+3.0,-1.0	7102	141
Φ130	+3.0,-1.0	9030	111
Φ140	+3.0,-1.0	11278	89
Φ150	+3.0,-1.0	13870	72