Product Details
Company Profile

Abrasion Resistant Industrial Grinding Balls Dia 20mm - 40mm +-1 Tolerance

Dia 20mm-40mm Hot Rolling Steel Balls Forged Balls Grinding Balls For Mining

1. Dragon Balls Main Product

Forged grinding ball

Hot Rolling Ball

Cast Iron Ball

Grinding Cylpebs

Grinding Rods

Liners

2. Hot Rolling Ball Different Name in Different Place

Hot Rolling Ball

Rolled Ball

Forged Ball

Grinding Media Ball

Rolling Ball

3. Hot Rolling Ball Application

Hot rolling balls are used in ball mills, mainly in mines, cement plants, power plants and so on.

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

4. Hot Rolling Ball Classification

According to the different chemical elements , hot rolling balls can be divided into C45,60Mn,B2 and B3. At present, the above four materials are widely used all over the world, that’s the conventional materials, if there are special needs, can be customized.

① 45#

② 60Mn

③ B2

④ B3

5. Hot Rolling Ball Manufacturing process

Hot rolling ball is making by hot rolling machine ,water quenching,double-layer insulating barrel and so on a series process.

6. Hot Rolling Ball Detail Specifications

① Chemical Composition

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

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

② 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

③ Weight

Size(mm)	20	30	40	50	60	70	80	90	100	110	120	130	140	150
Weight(kg)	0.033	0.111	0.261	0.512	0.883	1.402	2.092	2.98	1.087	5.44	7.062	9.008	11.25	13.83

④ Dragon 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. Hot Rolling Ball Quality Control

① Factory test

Hot rolling balls test is an very important step. Real-time detection will be carried out in the production process. Balls produced in each shift will be sampled in large quantities and tested for size, hardness, chemical composition, drop test, core pulling and impact value to ensure the quality of steel balls.

② The third party test

According to the customer different demand,hot rolling balls can be tested by any third party.

8. Hot Rolling Ball Packing

Hot rolling balls are usually packed in container bags and steel drums, it can also be customized according to different customer needs.

9. Company introduction

Dragon balls factory are established in 2001.Up to now, we have cooperated with many large power plants in China for more than 10 years. Since 2007, Dragon balls has set up its own foreign trade team, and began to show itself to the world. The forged ball, cast ball and cylpebs are widely praised by friends at home and abroad.

Dragon balls has a very mature technology research and development team and sales team, we are constantly expanding the factory and team every year, in order to meet the growing demand at home and abroad.

Steel balls are a long-term business.

We are willing to do it all the time because if we know someone, we will become permanent friends.

We can always do this for so many years because our quality supports our long-term cooperation and friendship.

The quality of every steel ball is crucial because it is a strong bridge that connects us.

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Categories	Hot Rolling Steel Balls
Brand Name:	DRAGON STEEL BALLS
Model Number:	45# 60Mn B2 B3
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
Keywords:	Hot rolling ball
Advantage:	High Hardness,Large output
Process:	Hot Rolling
Usagae:	Mining,Cement plant,Power Station
Port:	Tianjin/Qingdao/Shanghai
Materail:	Round Steel
Size:	20mm-40mm
Hardness:	58-63
Package:	Container bags Steel Drums
Tolerance:	+-1