Balls are made from many different varities of Stainless Steel. They are used for application where prevention of rust is desireable. They are also use for areas where non-magnatic 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 Headder, 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 DSP Balls.

 
 
 
 
 
 
 
 
 

 

DIFFERENT GRADES FOR STAINLESS STEEL BALLS

SPECIFICATIONS
EQUIVALENTS
HARDNESS
AVAILABLE GRADES
PROPERTIES
AISI 420 C
W.1. 4034 AFN. Z 40 C 13 B.S. 420 S 45 DIN X 40 Cr 13
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.

AISI 440 C
W. 1.4125 AFN. Z 100 CD 17 DI.X 105 Cr. M0 17
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.

AISI 302
W. 1.4319 AFN Z 10 CN 1809 B.S. 302 S25 DIN X 12 Cr Ni 18 .8
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.

AISI 304
W 1.4301 AFN. Z 6 CN 18.09 B.S. 304 S 15 DIN X Cr Ni 189
25-39 HRC  OR 140-160 HB 
48 & Above

As above but with Lower carbon content.

AISI 316
W. 1.440 AFN Z 6 CN D 1711 B.S. 316 S 16 DIN X Cr Ni Mo 1810
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.

AISI 316-L
W. 1.4404 AFN Z 2 CN 1712 B.S. 316 S12
25-39 HRC  OR 140-160 HB
48 & Above

As above but with lower carbon content and increased nickel.

 

 

 

 

 

 

DIFFERENT GRADES FOR STAINLESS STEEL BALLS

SPECIFICATIONS
 
EQUIVALENTS
 
COMPOSITION %
C
Si
Mn
P
S
Cr
Mo
Ni
AISI 420 C
W.1. 4034 AFN. Z 40 C 13 B.S. 420 S 45 DIN X 40 Cr 13
0.40 To 0.50
1.00 max
1.00 max
.045 max
.030 max
12.0 To 14.0
-
AISI 440 C
W. 1.4125 AFN. Z 100 CD 17 DI.X 105 Cr. M0 17
0.95 To 1.20 
1.00 max
1.00 max
0.045 max
0.03 max
16.0 To 18.0
0.4 To 0.8 
-
AISI 302
W. 1.4319 AFN Z 10 CN 1809 B.S. 302 S25 DIN X 12 Cr Ni 18 .8
0.12
max
0.2  To 1.00 
0.5 To 2.0 
0.045 max
0.03 max
17.0 To 19.0
8.0 To 11.0 
-
AISI 304
W 1.4301 AFN. Z 6 CN 18.09 B.S. 304 S 15 DIN X Cr Ni 189
0.07
max
1.00 max
2.0 max
.045 max
0.03 max
17.0 To 20.0
-
8.50 To 10.5
AISI 316
W. 1.440 AFN Z 6 CN D 1711 B.S. 316 S 16 DIN X Cr Ni Mo 1810
0.07 max
1.00
max
2.00 max
0.045 max
0.03 max
16.5 To 18.5
2.00 To 2.5
10.5 To 13.5
AISI 316-L
W. 1.4404 AFN Z 2 CN 1712 B.S. 316 S12
0.03
max
0.20 To 1.00 
0.50 To 2.00 
045 max
0.03 max
16.5 To 18.5
2.25To 14.0
10.0 To 14.0

 

 

 

 

DSP-BALLS: PRODUCTION LINES OF PRECISION BALLS

Production lines for Precision Balls are stream-lined with optimum combinations of various processes. The process given below illustrate how the high Quality of Stainless Steel balls are achieved


Raw Material

Is thoroughly inspected for Physical & Chemicals properties .


Heading

Wire coils are cold forged into spherical blanks, for compact structure, in semi-automatic machines known as single stroke Headers.


Flashing / Filing
Die-marks on poles and equator of headed blanks are then removed by grinding them between hardened plates of special composition, known as Flashing / Filing.
 


Lapping
Balls are lapped for final parameters of size, sphericity , lot variation and to surface quality in a series of specially designed machines known as Lappers.

Cleaning
Balls are then prepared for macro inspection by thorough cleaning in a especially designed cleaning machine.

Macro Inspection
Whole production of DSP-BALLS goes through 100 % inspection by well trained inspectors, under suitable magnification and light, for all surface defects.

Super finishing
Balls passed through macro inspection goes under super finishing and all Specified parameters are maintained in required tolerances as per grade to be prepared .

Guarantee Test
 During production balls are inspected at every stage for fixed stage specifications, and the material is unloaded from the machines only on qualifying limits. Finally, during super finishing, parameters of geometry, lot variation and surface roughness etc. are re-ensured and detailed inspection report is prepared and supplied to the customer on demand.

Packing
 They are then double packed in polythene bags, before being packed in Cardboard boxes and wooden cases. Labels carrying details of sizes, quality are properly pasted..

Cargo to Export
Balls so packed are ready for Export to customers.

 

| Home | About us   | Contact us | HCHC Balls | HC Balls | Stainless Steel Balls | Copper Balls | Brass Balls
 |
Other Material Balls  | Guage Balls  | Carbide Balls Quality Policy  | Query Form | Disclaimer |