150mm iron minerals used mills grinding media balls(forged & hot rolling)

mills grinding media balls: a). SGS & ISO Certificates b).Hardness: 60-67HRC c).Impact toughness:12-35J/CM2

150mm iron minerals used mills grinding media balls(forged & hot rolling):

a). SGS & ISO Certificatesb).Hardness: 60-67HRCc).Impact toughness:12-35J/CM2

Company profile:

As one of the leading grinding balls specialists in China, we can certainly assist you in buying grinding balls that suit your company needs. Our annual production capacity is about 200,000Ton. We own 15 sets integrated advanced import production lines, so that you can be satisfied with the quality of our products. 

 

Applied Fields:

a)Mines

b)Cement Plants

c)Chemical Industries

d)Power Stations

 

 

Type and Chemical Composition of Forged Steel Ball:

 

Name	Material	C	Mn	Si	Cr	S	P
GN-1	50Mn	0.48-0.56	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
GN-2	60Mn	0.57-0.65	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
GN-3	65Mn	0.60-0.70	0.90-1.2	0.17-0.37	≤0.25	≤0.035	≤0.035
GN-4	B2	0.70-0.85	0.70-0.80	0.17-0.37	0.2-0.7	≤0.03	≤0.03
GN-5	40Cr	0.37-0.44	0.50-0.80	0.17-0.37	0.80-1.10	≤0.03	≤0.03
GN-6	45#	0.42-0.50	0.50-0.80	0.17-0.37	≤0.25	≤0.03	≤0.03

 

Physical Property of Forged Steel Ball:

Name	Material	Impact Test(Ak.J/cm²)	Endurance Test Times(5m/T)	Surface Hardness (Φ25mm- Φ60mm)	Core Hardness (Φ25mm- Φ60mm)	Surface Hardness (Φ70mm- Φ100mm)	Core Hardness (Φ70mm- Φ100mm)	Breakage
GN-1	45#	≥12	≥10000	≥56	≥35	≥56	≥30	<1%
GN-2	40Cr	≥13	≥10000	≥58	≥38	≥58	≥30	<1%
GN-3	60Mn	≥14	≥12000	≥60	≥42	≥60	≥35	<1%
GN-4	65Mn	≥15	≥12000	≥60	≥52	≥60	≥50	<1%
GN-5	B2	≥17	≥12000	≥60	≥50	≥60	≥48	<1%
GN-6	B6	≥17	≥12000	≥60	≥54	≥60	≥55	<1%

 

Weight and Microstructure of Forged Steel Ball:

Norminal Diameter	Diametrical Tolerance(mm)	Approx Weight of Single Ball(kg)	Average Number of One MT	Microstructure
25mm/1''	+1.5,-0.5	0.064	15625	M+B+C (M-Martensite;B-Bainitic;C-Carbide)
30mm/1.25''	+1.5,-0.5	0.11	9090
40mm/1.5''	+2.0,-1.0	0.26	3846
50mm/2''	+2.0,-1.0	0.51	1961
60mm/2.5''	+3.0,-2.0	0.89	1124
70mm/2.75''	+3.0,-2.0	1.4	714
80mm/3.25''	+3.0,-2.0	2.1	476
90mm/3.5''	+3.0,-2.0	3	333
100mm/4''	+4.0,-3.0	4.1	244
110mm/4.5''	+4.0,-3.0	5.47	283
120mm/4.75	+4.0,-3.0	7.1	141
130mm/5''	+4.0,-3.0	9.02	111

 

 

Productive procedure:

 

 

 

 

Package:

a). woven bag: 1000kg/Ton

b). iron drum: 850-920kg/drum

 

 

Products:

 

 

 

150mm iron minerals used mills grinding media balls(forged & hot rolling)