Choksi Heraeus
 Home | About us | Services | Products | Quality System | Contact us



Electrical Contact designed, by the users, are available in different sizes and shapes, such as Profiles, Blanks, Discs, Buttons, Rivets (both solid & bi-metallic).

Standard material offered by us include Pure Silver, Fine Grain Silver with minor additives, Silver Nickel, Silver Cadmium Oxide, Silver Graphite, Silver Tungsten, Silver Tungsten Carbide, Copper Tungsten etc.

For low current we offer Silver Palladium and Platinum Alloys.

We also produce "ready to insert Contact Assemblies" with Contacts duly riveted/brazed on Copper/Brass Carriers.

For economical production of large quantities of Contacts, we offer semi-finished products (SEMIS) in the form of Strips, Foils and Wires. Cladded Strips are offered with Precious Metals Inlay, Throughlay, Edgelay or Overlay mainly for MCBs and HRC Fuse elements.



Contact Material
Ag
Ag Ni 0.15
Ag Cu ( 3..10% )
Ag Ni ( 10..40% )
Ag CdO ( 10..15% )
Ag Pd ( 30..60% )
Ag C*
Ag W*
Ag WC*
Cu W*
Brazing Material
IS 2997/Bs 1845
with 2, 15, 43, 45,
50 and 60% Ag
Backing/Carrier Material
Copper
Ag Bronze
Cu Fe 2
Cu Bronze
CuNi Alloys
Wires, Foils, Strips, Tapes, Sheets, Rivets, Discs*, Profiles*
[ * These Materials are available only in the marked form ]
Wires, Strips, Foils Wires, Strips, Foils, Stampings

 



Complete Contact Assemblies can be supplied using any of the above Contacts & Carrier Materials, duly brazed or welded.



Material Specification