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B2 50mm Grinding Balls Mining , Hot Rolling Steel Balls 58-63 Hardness

B2 50mm Forged Steel Grinding Balls Mining Hot Rolling Balls Grinding Media Supplier

1. Ball milling media Hardness

Forged ball ,hot rolling balls hardness

Size	C45	60Mn	B2	B3
20mm	55-58	58-62	60-64	62-65
30mm	55-58	58-62	60-64	62-65
40mm	55-58	58-62	60-64	62-65
50mm	55-58	58-62	60-64	62-65
60mm	55-58	58-62	60-64	62-65
70mm	53-56	58-62	60-64	61-63
80mm	53-56	58-62	59-63	60-65
90mm	50-55	58-62	57-61	60-65
100mm	48-52	57-61	56-60	60-65
110mm	48-52	57-61	55-60	58-64
120mm	48-52	57-61	55-60	56-63
130mm	48-52	57-61	55-60	56-63
140mm	48-42	57-61	55-60	56-63
150mm	48-52	57-61	55-60	56-63

Cast ball ,cylpebs hardness

Type	Low Cr	Medium Cr	High Cr
20mm-150mm	45-50	48-55	58-63

2. Ball milling media is used in ball mill for mining,cement plant ,power plant and industry.

① Mining ( Gold, copper, iron ore )

② Cement plant

③ Coal mill

④ Sag mill

⑤ Industry

⑥ All the ball mill or rods mill machine

3. Dragon balls main product & Dragon balls classifications :

Forged ball

Cast ball

Cylpebs

Hot rolling ball

4. Ball milling media size

Forged ball 20mm-150mm

Cast balls 12mm-150mm

Cylpebs 6×6-50×60

Hot Rolling Ball 20mm-40mm

5. Ball milling media Chemical elements

Forged ball ,hot rolling balls chemical elements

Material	Chemical Composition
Material	C	Si	Mn	Cr	P	S	Ni	Cu
C45	0.42-0.5	0.17-0.37	0.5-0.8	≤0.25	≤0.035	≤0.035	≤0.25	≤0.25
60Mn	0.55-0.65	0.17-0.37	0.7-1.0	≤0.25	<0.04	<0.04	≤0.3	≤0.25
B2	0.72-0.85	0.17-0.37	0.7-1.0	0.4-0.6	≤0.025	≤0.025	≤0.02	≤0.02
B3	0.58-0.66	1.3-1.9	0.65-0.8	0.7-0.9	≤0.025	≤0.025	≤0.02	≤0.02

Cast Ball ,Cylpebs chemical elements

Material	C	Si	Mn	Cr	P	S
Low Cr	2.2-3.4	≤1.2	0.5-1.5	1.0-1.5	≤0.06	≤0.06
Medium Cr	2.0-3.2	<1.0	0.5-2.5	≥5	≤0.06	≤0.06
High Cr	2.0-3.2	<1.0	0.5-2.5	≥10	≤0.06	≤0.06

6. Grinding Balls Specifications

Diameter (mm)	Diameter Tolerance (mm)	Approx Weight of per ball(kg)	Average numbers per ton
20	＋1,－0.5	0.033	30303
30	＋2,－1	0.11	9090
40	＋2,－1	0.261	3831
50	＋2,－1	0.512	1961
60	＋2,－1	0.883	1132
70	＋3,－1.5	1.402	713
80	＋3,－1.5	2.092	478
90	＋3,－1.5	2.98	335
100	＋3,－1.5	1.087	244
110	＋3,－1.5	5.44	183
120	＋3,－1.5	7.062	141

7. Ball milling mediaProduction process

Forged balls are forged by air hammer after being heated by electric furnace.

Cast Balls and cylpebs are melted in electric furnace and poured into moulds after scientific proportioning. High chromium balls and cylpebs are also processed by oil quenching.

8. The difference of the forged ball and cast ball

① Different production line

② Different raw material

③ Different chemical element

④ Different core hardness and core hardness

9. How to choose the material

① According to the different customer need and usage.

② According to the ball mill size, dry grinding or wet grinding. We can recommend you the most suitable products.

Ball milling media balls cast iron balls production line

size test of Ball milling media balls

Product Tags:

grinding balls for mining

high chromium grinding media balls

B2 50mm Grinding Balls Mining , Hot Rolling Steel Balls 58-63 Hardness

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Categories	Grinding Balls Mining
Brand Name:	DRAGON STEEL BALLS
Model Number:	45# 60Mn B2 B3 Low Mid high Cr
Certification:	CE,ISO
Place of Origin:	CHINA
MOQ:	1 ton
Price:	Negotiable
Payment Terms:	L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability:	3000 tons / Month
Delivery Time:	3-7 work days/ 25 tons
Packaging Details:	Container bags ,steel drums
Keyword:	ball milling media
Size:	20mm-150mm
Production Process:	Hot Rolling Forging Casting
Tolerance:	+-1mm,+-2mm
Breakage:	<1%
Hardness:	58-63