Silver Brazing Alloys With Cadmium

Silver Brazing Alloys With Cadmium

We offer a range of cadmium bearing alloys which have an excellent combination of melting range, capillary flow and mechanical properties. These cadmium bearing alloys would be recommended as the most economical alloys where the presence of cadmium is acceptable.

ALFA - 213 is majorly used for brazing of Silver goods which are made of Silver Alloys.
ALFA - 205 is a general purpose alloy which has highest joint strength and also provides resistance to corrosion in chlorine, sulphur and steam environments.
ALFA - 209 has lowest brazing temperature range because of which it provides excellent flow characteristics. Its narrow melting range makes it suitable for rapid or slow methods of heating and also helps in flowing freely in narrow clearance joints.
ALFA - 207 may be used in brazing operations, requiring a low temperature, quick and complete penetration and neat joints of high strength that needs little or no finishing. It is used where joints are closely fitted and where it is desired to employ a single alloy effective in wide range of applications. It may be used in brazing steel, copper, brass, gunmetal, tin bronzes, aluminium, manganese bronzes, copper nickel alloys and nickel silver.
ALFA - 204 is versatlie, high strength, free flowing and exhibits lowest melting points.
ALFA - 211 Similar to ALFA-208 but little costlier. Provides more strength to the joint.
ALFA - 208 is free flowing and is suitable for general purpose work requiring higher brazing temperature. Its melting range is helpful where joint clearances are not uniform. Unless heating is rapid, care must be taken , that lower melting constituents do not seperate by liquation.
ALFA - 203 is very versatile, high strength and is free flowing. It can be used to join a wide range of base materials.
ALFA - 207A wide melting range limit its application because it is more prone to liquation. It is recommended for applications with slow heating rates. However, it has good fillet forming properties and has ability to bridge wider gaps.
ALFA - 207B is similar to ALFA-207A. It is used for brazing joints with very wide gaps.
ALFA - 202 is very versatile, high strength, free flowing and exhibits low melting points. It can be used to join a wide range of base metals besides being economical.
ALFA - 203A is ideal for bridging wider gaps where work pieces are insensitive to heat. It is preferred for applications having short heating cycles.

Caution : The above brazing filler metals contains cadmium where in fumes produced during brazing are poisonous. Kindly refer to American National Standard Z49.1 Safety in Welding and Cutting for proper usage of these alloys.