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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

Hyper Steel Grinding Media Balls

Hyper Steel Grinding Media Balls In troduction “Dongbang” brand hyper steel grinding media balls, your best choice for your copper ore mine mineral processing, mostly used in ball mills. Our very low breaking rate and even high hardness grinding balls support you to reduce 10-20% for your ball...

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  • Product Details

Hyper Steel Grinding Media Balls Introduction
“Dongbang” brand hyper steel grinding media balls, your best choice for your copper ore mine mineral processing, mostly used in ball mills. Our very low breaking rate and even high hardness grinding balls support you to reduce 10-20% for your ball consumption.
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Technical Datas
Application: Hyper Steel Grinding Media Balls, mostly used for different types of ball mills.
Hyper Steel Grinding Media Balls size range: 25mm to 125mm (1 inch to 5 inches)
Material: High Carbon alloy steel rods
Certification: ISO9001, ISO14001, OHSAS18001 etc.
Original: Jiangyin, Jiangsu, China
Market: Worldwide
Packing: export standard, Iron drum or Ton bag, each bag 1000kgs
Price: Negotiable
Delivery date: Negotiable
MOQ: 50 metric tons per ball size (2x20’GP per size)
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Quality performances of my Hyper Steel Grinding Media Balls, see below lists:

                                                                                  Steel Rod Type: B2, Chemical Comments
                                                                                          (Hyper Steel Grinding Media Balls)

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

-


25mm-30mm Hyper Steel Grinding Media Balls 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
     (Hyper Steel Grinding Media Balls)

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

-


40mm-50mm Hyper Steel Grinding Media Balls 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: B4, Chemical Comments
     (Hyper Steel Grinding Media Balls)

C

Si

Mn

P

S

Cr

0.66-0.74

1.2-1.4

0.50-0.70

≤0.022

≤0.022

0.85-1.0

Ni

Cu

Mo

Alt

V


-

≤0.40

-

0.06-0.13

0.05-0.15


60-70mm Hyper Steel Grinding Media Balls Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

Impact Toughness

60mm

61-63 HRC

58-60 HRC

59-62 HRC

≥12 J/CM2

70mm

61-63 HRC

58-60 HRC

59-62 HRC

≥14 J/CM2



Steel Rod Type: B4, Chemical Comments
     (Hyper Steel Grinding Media Balls)

C

Si

Mn

P

S

Cr

0.66-0.74

1.2-1.4

0.50-0.70

≤0.022

≤0.022

0.85-1.0

Ni

Cu

Mo

Alt

V


-

≤0.40

-

0.06-0.13

0.05-0.15


80-90mm Hyper Steel Grinding Media Balls Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

Impact Toughness

80mm

61-63 HRC

58-60 HRC

59-62 HRC

≥16 J/CM2

90mm

61-63 HRC

58-60 HRC

59-62 HRC

≥18 J/CM2



Steel Rod Type: B4, Chemical Comments
     (Hyper Steel Grinding Media Balls)

C

Si

Mn

P

S

Cr

0.66-0.74

1.2-1.4

0.50-0.70

≤0.022

≤0.022

0.85-1.0

Ni

Cu

Mo

Alt

V


-

≤0.40

-

0.06-0.13

0.05-0.15


100-125mm Hyper Steel Grinding Media Balls Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

Impact Toughness

100mm

60-62 HRC

57-60
     HRC

58-62
     HRC

≥22 J/CM2

120mm

60-62 HRC

57-60
     HRC

58-62
     HRC

≥24 J/CM2

125mm

60-62 HRC

57-60
     HRC

57-61
     HRC

≥24 J/CM2


Our successful case
In 2016 season, we get the hornor to help one copper mine owned by China Gold Group, they told us that the 40mm grinding balls have a high ball consumption per ton of copper mine at grinding phase 2, because they know that we had developed our unique and special heat treatment.
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The entire testing period last 3-4 monthes, we produced for this copper mine about 800 tons 40mm grinding balls, the result show as below:


         Supplier Name

Meterial Type

Surface Hardness

Core Hardness

Final Ball Consumption

DONGBANG

B2

63-64 HRC

62-63 HRC

630 grams

Other

B2

61-63 HRC

60-62 HRC

750 grams


After the testing, the copper mine under China Gold Group start long time cooperation with us, we help them to reduce ball consumption from 750 grams to 630 grams, which means 16% reduced!

Why the same raw material get so bigger different result ? Because we are keeping developing the newest and best production method year by year, our unique heat treatment method is special than others! 

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