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Jiangyin Dongbang Steel Ball Machinery Co.,Ltd

ADD:NO.42 Hua Lu Road, Huashi Town, Jiangyin City, Jiangsu Province

Tel:86-0510-86370386

Mobile:86-13812104338

Fax:86-0510-86370552

Email:grindingballsmedia@163.com

Media Ball for Silver Ore Mine Mineral Processing

Media Ball For Silver Ore Mine Mineral Processing Introduction “Dongbang” brand media ball for silver ore mine mineral processing, your best choice for silver ore mine mineral processing! Give me a chance, we help you to save ball consumption 10-30% as return! Technical Datas Application: Media...

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Media Ball For Silver Ore Mine Mineral Processing Introduction 
“Dongbang” brand media ball for silver ore mine mineral processing, your best choice for silver ore mine mineral processing! Give me a chance, we help you to save ball consumption 10-30% as return!
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Technical Datas
Application: Media Ball For Silver Ore Mine Mineral Processing, mostly used in all types of ball mills.
Grinding ball size range: From 25mm(1 inch) to 125mm(5 inches)
Original: Jiangyin, Jiangsu, China
Certification: ISO9001, ISO14001, OHSAS18001 etc.
Price: Negotiable
Material: Alloy Steel
Payment term: TT, LC
Delivery date: Negotiable
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Media Ball For Silver Ore Mine Mineral Processing quality performance see below lists:

                                                                                  Steel Rod Type: B2, Chemical Comments
                                                                            (Media Ball For Silver Ore Mine Mineral Processing)

C

Si

Mn

P

S

Cr

0.76-0.82

0.17-0.35

0.72-0.80

≤0.020

≤0.015

0.50-0.60

Ni

Cu

Mo

Alt

V


≤0.25

≤0.20


0.020-0.050



Media Ball For Silver Ore Mine Mineral Processing Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

25mm

63-64 HRC

62-63 HRC

62-64 HRC

30mm

63-64 HRC

62-63 HRC

62-64 HRC


Steel Rod Type: B2, Chemical Comments
     (Media Ball For Silver Ore Mine Mineral Processing)

C

Si

Mn

P

S

Cr

0.76-0.82

0.17-0.35

0.72-0.80

≤0.020

≤0.015

0.50-0.60

Ni

Cu

Mo

Alt

V


≤0.25

≤0.20


0.020-0.050



Media Ball For Silver Ore Mine Mineral Processing Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

40mm

62-64 HRC

61-63 HRC

61-64 HRC

50mm

61-64 HRC

60-63 HRC

60-63 HRC


Steel Rod Type: B3, Chemical Comments
     (Media Ball For Silver Ore Mine Mineral Processing)

C

Si

Mn

P

S

Cr

0.61-0.65

1.73-1.80

0.73-0.80

≤0.020

≤0.015

0.80-0.88

Ni

Cu

Mo

Alt

V


≤0.25

≤0.20





Media Ball For Silver Ore Mine Mineral Processing Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

Impact Toughness

60mm

61-63 HRC

59-61 HRC

59-62 HRC

≥14 J/CM2

70mm

61-63 HRC

59-61 HRC

59-62 HRC

≥16 J/CM2

80mm

61-63 HRC

59-61 HRC

59-62 HRC

≥18 J/CM2

90mm

61-63 HRC

59-61 HRC

59-62 HRC

≥20 J/CM2

100mm

60-62 HRC

58-60 HRC

58-62 HRC

≥22 J/CM2


Steel Rod Type: B3, Chemical Comments
     (Media Ball For Silver Ore Mine Mineral Processing)

C

Si

Mn

P

S

Cr

0.61-0.65

1.73-1.80

0.73-0.80

≤0.020

≤0.015

0.80-0.88

Ni

Cu

Mo

Alt

V


≤0.25

≤0.20





Media Ball For Silver Ore Mine Mineral Processing Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

Impact Toughness

120mm

60-62 HRC

58-60 HRC

58-62 HRC

≥24 J/CM2

125mm

60-62 HRC

58-60 HRC

57-61 HRC

≥26 J/CM2

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Packing: Plastic Ton Bag, 1000Kgs Each Bag, or, Iron Drum

Market: Worldwide

Min Order Quantity: 100 Tons Each Ball Size

FAQ

1.What is your production method on grinding ball size from D25MM-D100MM ? 

A: Our method is hot rolling (Hot Scew Rolling). 

2.What is your production method on grinding ball size from D100MM – D140MM ? 

A: Our method is quick hammer at first to get a “ball shape”, then use rolling machine to make the ball get even roundness. 

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Difference between Hot rolled grinding balls and casted balls:

1.First, the materials used by hot rolled grinding balls and casted balls are different; 

Hot rolled grinding balls---The material used is a low-alloy high-carbon steel, which is finished round steel made by regular special steel works. Meanwhile, the steel ball shall be made by hot rolled extrusion of billet with the compression rate above 15 times;

Casted balls---The material used is mainly steel scrap collected and added with specific proportions of alloy elements.


2.Different principles to form the hardness of steel balls

Hot rolled grinding balls have been tested by authoritative organization. The hardness of hot rolled balls made by our company has reached 60-65HRC. The steel balls will be quickly cooled down by special quenching for promoting the transfer of austenite in metallic structure into martensitic structure with considerable wear-resistant hardness, so the hardness is produced by quenching. 

The specific hardness and wear resistance of casted balls are produced by adding specific amount of alloy element chromium(Cr). The higher content of Cr will result in better hardness and wear resistance and higher cost of steel balls; presently, the content of Cr in china reaches up to 18-25%, with the hardness at 60-64HRC and good wear resistance, but the price is more than 20-40% over hot rolled grinding balls. 

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