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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

80mm Forged Grinding Media Ball

“Dongbang” brand 80mm forged grinding media ball, 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

Introduction
“Dongbang” brand 80mm forged grinding media ball, 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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Quality performances, see below lists:

                                                                                  Steel Rod Type: B2, Chemical Comments
                                                                                               (Forged Grinding Media Ball)

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 Forged Grinding Media Ball 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
     (Forged Grinding Media Ball)

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 Forged Grinding Media Ball 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
     (Forged Grinding Media Ball)

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 Forged Grinding Media Ball 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
     (Forged Grinding Media Ball)

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 Forged Grinding Media Ball 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
     (Forged Grinding Media Ball)

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 Forged Grinding Media Ball 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

图片97.png


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