Contact us

 

  • Suizhou Gaincin Machinery Co.,Ltd 
  • add: No.1704, Jinxiu River, Wenfeng, Zengdu, Suizhou, Hubei, P.R.China
  • E-mail:
  • Info@gaincin.com
  • Kimy.Lee@gaincin.com
  • Candy.Wu@gaincin.com 
  • Tel:  86-722-358 8806
  • Fax: 86-722-358 8806 x 8002
  • Website: www.gaincin.com 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

Website:http://www.web-sun.cn
TEL:0592-2686956
FAX:0592-2686956
Email: client@web-sun.cn.

 

 

 

 

 

 

 

 

 

Home > Gaincin Forged Mill Balls

STEEL GRINDING BALLS  please email us to order

 

 

The size and quality of Hand Forged Steel Balls to be used depends upon:

*Size and type of mill

*Physical characteristics of the material to be ground

*Size of finished product required

 

Grinding balls are available in sizes from 20mm to 150mm diameter, In the 'As Forged' Condition Brinell hardness 260/310.
'Heat treated' condition 20mm to 65mm Hardness up to 700 Brinell, 70mm to 100mm Hardness 550/640 Brinell,
 

Typical analysis : Car. 07/.09% Mn .07/.09%

Carbon Chrome En 31: 25mm to 150mm Hardness 300/400 Brinell,
Typical analysis: Car 90/1.20% Mn. 30/75 Chr. 90/1.6%

 

Bearing in mind forging tolerance the approximate weights and measurements of steel balls are as follows:

 

Size

mm

(ins)

 

Weight per Ball Kgs

No per metric Tonne
(1000Kgs)

Surface Area
in Square mm

20mm

(.75)

0.0284

35,211

1,134

25mm

(1)

0.0673

14,858

1,964

30mm

(1.25)

0.1314

7,610

2,828

40mm

(1.5)

0.2271

4,403

5,028

50mm

(2)

0.5384

1,857

7,857

60mm

(2.25)

0.9012

1,109

11,314

65mm

(2.5)

1.0514

951

13,278

70mm

(2.75)

1.3993

714

15,399

75mm

(3)

1.8171

550

17,678 

80mm

(3.25)

2.0534

486

20,113

90mm

(3.5)

2.8853

346

25,456

100mm

(4)

4.3068

232

31,428

115mm

(4.5)

6.1325 

163

41,563

120mm

(4.75)

7.2121

138

45,256

125mm

(5)

8.4096

118

49,106

133mm

(5.25)

9.7386

102

55,592

140mm

(5.5)

11.1946

89

61,598

150mm

(6)

14.5331

68

70,713