TECHNICAL SPECIFICATIONS

High quality Steel Grinding Balls for mining, cement and aerated concrete production, grinding at a power plants. Grinding Media & Grinding Balls

Energosteel company is manufacturer of rolled and forged steel grinding balls of 20-125mm. Our products are designed for grinding of raw materials at ore mining and industrial processing facilities, energy generating companies, cement plants.

Small size grinding balls

Physical parameters

Rated diameter, mm	Nominal diameter, mm	Limit deviations from the nominal diameter, mm	Number of balls perm³, pcs.	Bulk weight, t/m³	Calculated nominal surface, cm²	Volume, cm	Calculated nominal weight, kg
20	20	± 1,0	30 300	4,81	12,56	4,18	0,033
25	25	± 1,0	15 625	4,80	19,52	8,18	0,064
30	31,5	± 2,0	7 812	4,75	31,15	16,40	0,128
40	41,5	± 2,0	3 401	4,73	54,00	37,40	0,294

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Technical information

Size, mm	“Average C”		“High C”		“High C + Cr”
	С (0,50 % - 0,70 %)		С (0,70 % - 1,00 %)		С (0,70 % - 1,00 %) Cr (0,35 % - 1,50 %)
	Surface hardness, HRC	Volumetric hardness, HRC	Surface hardness, HRC	Volumetric hardness, HRC	Surface hardness, HRC	Volumetric hardness, HRC
20	55 – 62	50 – 60	60 – 65	58 – 65	62 – 66	min. 60
25	55 – 62	50 – 60	60 – 65	58 – 65	62 – 66	min. 60
30	55 – 62	50 – 60	60 – 65	58 – 65	62 – 66	min. 60
40	55 – 62	50 – 60	60 – 65	58 – 65	62 – 66	min. 60

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Mid size grinding balls

Physical parameters

Rated diameter, mm	Nominal diameter, mm	Limit deviations from the nominal diameter, mm	Number of balls perm³, pcs.	Bulk weight, t/m³	Calculated nominal surface, cm²	Volume, cm	Calculated nominal weight, kg
50	52	± 3,0	1 724	4,71	84,90	74,00	0,580
60	62	± 3,0	1 020	4,69	120,70	125,00	0,980
70	73	± 3,0	625	4,62	167,33	204,00	1,600
80	83	± 3,0	425	4,60	216,31	299,00	2,350
90	94	± 4,0	293	4,58	277,45	435,00	3,410

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Technical information

Size, mm	“Average C”		“High C”		“High C + Cr”
	С (0,50 % - 0,70 %)		С (0,70 % - 1,00 %)		С (0,70 % - 1,00 %) Cr (0,35 % - 1,50 %)
	Surface hardness, HRC	Volumetric hardness, HRC	Surface hardness, HRC	Volumetric hardness, HRC	Surface hardness, HRC	Volumetric hardness, HRC
50	53 – 60	50 – 57	58 – 65	57 – 63	60 – 64	min. 60
60	53 – 60	45 – 50	57 – 63	52 – 58	60 – 64	min. 60
70	53 – 60	40 – 50	57 – 63	50 – 55	60 – 64	min. 58
80	52 – 57	40 – 50	57 – 63	47 – 53	58 – 62	min. 56
90	52 – 57	40 – 47	57 – 63	45 – 47	58 – 62	min. 56

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SAG grinding balls

Physical parameters

Rated diameter, mm	Nominal diameter, mm	Limit deviations from the nominal diameter, mm	Number of balls perm³, pcs.	Bulk weight, t/m³	Calculated nominal surface, cm²	Volume, cm	Calculated nominal weight, kg
100	104	± 4,0	216	4,54	339,60	589,00	4,620
110	114	± 5,0	164	4,53	408,00	776,00	6,090
120	125	± 5,0	124	4,52	490,60	1023,00	8,030
125	130	± 5,0	124	4,51	490,60	1023,00	8,030

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Technical information

Size, mm	“Average C”		“High C”		“High C + Cr”
	С (0,50 % - 0,70 %)		С (0,70 % - 1,00 %)		С (0,70 % - 1,00 %) Cr (0,35 % - 1,50 %)
	Surface hardness, HRC	Volumetric hardness, HRC	Surface hardness, HRC	Volumetric hardness, HRC	Surface hardness, HRC	Volumetric hardness, HRC
100	52 – 57	40 – 47	56 – 63	45 – 47	58 – 62	min. 56
110	50 – 55	35 – 45	56 – 63	42 – 45	56 – 62	min. 56
120	50 – 55	35 – 45	56 – 63	42 – 45	56 – 62	min. 56
125	50 – 55	35 – 45	56 – 63	42 – 45	56 – 62	min. 56