Silver Brazing Alloys For Tungsten Carbide Tipped Tools

Silver Brazing Alloys For Tungsten Carbide Tipped Tools

We manufacture excellent range of brazing filler metals containing nickel specifically for the tungsten carbide tipped tools industry because of its need of protection from crevice corrosion and higher temperature service properties. These alloys are available in forms of rods, wire, foils or shims.

ALFA-405A is low melting, free flowing, cadmium free and suitable for use in joining low carbon 300 series stainless steels (particularly food handling equipment and hospital utensils) and small tungsten carbide inserts for cutting tools.
ALFA-405 is particularly suitable for brazing carbide tool tips to tool shanks as it wets the carbide tool tip very satisfactorily. It has a wide wetting range, therefore, the solid and liquid portions do not tend to separate excessively. It is good filler metal for bridging gap. It has good corrosion resistant properties and is particularly suitable for brazing stainless steels also.
ALFA-404 is used for brazing carbide tip brazing. Similar to ALFA-405, but higher brazing temperature is required. It flows freely and does not contain cadmium.
ALFA - 404A is used for brazing of tungsten carbide and stainless steels.
ALFA - 501 is used for brass brazing steels, malleable cast iron, copper, copper alloys with melting temperatures greater than 950 C, nickel and nickel alloys. It is also known as "Silicon Bronze".
ALFA - 510 is often used for brazing tungsten carbide. It is also used with steel, nickel and nickel based alloys. This filler metal is unsuitable for protective atmosphere furnace brazing. It is also known as "Nickel Bronze".
ALFA- 510A is similar to ALFA510 but the presence of silver in it improves joint strength.