MSE Supplies offers different types of casting steel grinding balls, with sizes ranging from 15mm to 130mm. Casting balls are produced by steel molds or sand box molds, with pouring ports, blisters and ring belts on the surface. As a primary grinding media, it is widely used in Cement Plants, Mines, Power stations, Chemical Industries, Coal mill and so on. Due to the high Cr content, the relative wear rates show a performance improvement of 25 – 30% and in the corrosive environments with low abrasion, the improvement could become 50% or more as compared with forged steel.

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Chemical Composition of Casting Steel Grinding Balls

SKU#	Materials	C%	Si%	Mn%	Cr%	Ni%	Mo%	Cu%
BA0560	ZQCr12	2.0-3.0	0.3-1.2	0.2-1.0	11-13	0-1.5	0-0.1	0-1.0
BA0561	ZQCr15	2.0-3.0	0.3-1.2	0.2-1.0	14-17	0-1.5	0-0.1	0-1.0
BA0562	ZQCr20	2.0-2.8	0.3-1.0	0.2-1.0	18-22	0-1.5	0-2.0	0-1.0
BA0563	ZQCr26	2.0-2.8	0.3-1.0	0.2-1.0	22-28	0-1.5	0-2.5	0-2.0
BA0564	ZQCr7	2.0-3.2	0.3-1.5	0.2-1.0	6.0-10	0-1.5	0-1.0	0-0.8
BA0565	ZQCr2	2.0-3.6	0.3-1.5	0.2-1.0	1.0-3.0	0-1.5	0-1.0	0-0.8

Specifications of Casting Steel Grinding Balls

Nominal Diameter	Quantity/MT	Weight of single ball in average	Surface Hardness of High Chrome Balls	Endurance Impact Test
15mm	72549pcs	13.8g	>60HRC	>10000
20mm	30607pcs	32.7g	>60HRC	>10000
30mm	9069pcs	110g	>60HRC	>10000
50mm	1959pcs	510g	>60HRC	>10000
60mm	1134pcs	882g	>60HRC	>10000
80mm	478pcs	2091g	>58HRC	>10000
100m	245pcs	4084g	>58HRC	>8000
120mm	142pcs	7057g	>58HRC	>8000
130mm	115pcs	8740g	>58HRC	>8000

Features of Casting Steel Grinding Balls

No deformation and breakage of the surface. Lower wear loss.
Uniformity of the hardness from surface to core.
High chrome casting balls and middle chrome casting balls could be more suitable in the corrosive environments.