Balls
are made from many different varities of Stainless Steel. They are used
for application where prevention of rust is desirable. They
are also use for areas where non-magnetic properties are called for.
They are produced using extremely sophisticated and specialized
machines.Starting from the rigorous testing of the wire for all necessary parameters, balls are produced in specially designed machines called Header, Flasher, Grinder and Lapper. Heat treatment is one of the most critical operations which gives required strength & hardness. It makes the balls tough and wear resistant. Apart from intermediate vigil at all operations, for all quality parameters, finished products are also tested with extremely sophisticated equipments to ensure right quality of BALCO Balls.
302 Stainless steel balls
304 Stainless steel balls
316 Stainless steel balls
420 Stainless steel balls
440 Stainless steel balls
|
STEEL COMPOSITION |
| Steel Ball Sizes |
| Steel Ball Grades |
| Steel Ball Applications |
| No of Balls per /Kg |
MECHANICAL
PROPERTIES:
DIFFERENT
GRADES FOR STAINLESS STEEL BALLS
|
SPECIFICATIONS
|
EQUIVALENTS
|
HARDNESS
|
AVAILABLE
GRADES
|
PROPERTIES
|
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|
AISI 420 C
|
|
35 HRC
|
10 &
Above
|
420 C balls offer good hardness & surface finish. They are generally used for all applications requiring corrosion resistance to water. Steam water, air, gasoline. Not recommended for applications requiring resistance to most chemical solutions. |
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|
AISI 440 C
|
|
58 To 65
HRC
|
10 &
Above
|
440 C balls afford the advantage of maximum hardness combined with corrosion- resistance properties. The hardness together with accuracy and fine surface finish, makes them especially used for both bearing & valve application & other severe applications. |
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AISI 302
|
|
25-39 HRC
OR 140-160 HB
|
48 &
Above
|
Austenistic unhardened stainless steel balls with excellent toughness and resistance to corrosion by such agents as oxidizing solutions, most organic chemicals, food stuffs and sterilizing solutions. They have non-magnetic properties. |
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AISI 304
|
|
25-39 HRC
OR 140-160 HB
|
48 &
Above
|
As above but with Lower carbon content. |
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|
AISI 316
|
|
25-39 HRC
OR 140-160 HB
|
24 &
Above
|
Austenitic unhardened stainless steel balls as above but with increased nickel and addition of molybdenum. This is giving much better corrosion resistance to strong acids (sulfuric, phosphoric & acetic). Can be used to elevated temperatures. |
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| Grades of balls | |||||
| Burnishing Applications | I.S. 2898 (INDIA),I.S.O. 3290 Standard, G.B 308 (G.B) | ||||
| How Balls are made | ANSI/AFBMA- (USA), | ||||
| AFNOR NF E 22-381 - (FRANCE) | |||||
| DIN 5401 (GERMANY) | |||||
|
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