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Lucas-Milhaupt Premabraze 616 Silver Based Cadmium Free Filler Metal

Category Metal , Nonferrous Metal , Precious Metal , Silver Alloy , Solder/Braze Alloy
Manufacturer Lucas-Milhaupt
Trade Name Premabraze
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Lucas-Milhaupt Premabraze 616 Silver Based Cadmium Free Filler Metal.pdf
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Material Notes:
Applications: Application is found in all types of moderate temperature low pressure systems, and in particular the electronic vacuum tube. Characteristics:Premabraze 616 is a low temperature, slightly sluggish brazing filler metal with a tendency to liquate (i.e. separate into low and high melting constituents) if heated slowly through their melting range. This low vapor pressure brazing filler metal was formulated to meet the need for a composition free from volatile constituents, particularly in the brazing of vacuum tubes. This filler metal can be successfully used in hydrogen, inert atmospheres or vacuum without flux. The indium content improves their wetting tendency on ferrous alloys over that obtainable with binary silver-copper. Some nickel base alloys are susceptible to stress cracking. To prevent this the parts should be stress-relieved prior to brazing. Special attention should also be given to dissimilar metal joints where stresses can occur from differences in thermal expansion. Specifications:Premabraze 616 conforms to AWS A5-8, BVAg-29, Grade 2. Information provided by Lucas-Milhaupt, Inc.
Physical Properties Metric English Comments
Specific Gravity 9.85 g/cc
9.85 g/cc
Thermal Properties Metric English Comments
Melting Point 623.9 - 707.2 °C
1155 - 1305 °F
Solidus 623.9 °C
1155 °F
Melting Point
Liquidus 707.2 °C
1305 °F
Flow Point
Component Elements Properties Metric English Comments
Cadmium, Cd <= 0.0020 %
<= 0.0020 %
Carbon, C <= 0.0050 %
<= 0.0050 %
Copper, Cu >= 22.167 %
>= 22.167 %
Indium, In 14 - 15 %
14 - 15 %
Lead, Pb <= 0.0020 %
<= 0.0020 %
Other, each <= 0.0020 %
<= 0.0020 %
Other, total <= 0.30 %
<= 0.30 %
Phosphorous, P <= 0.020 %
<= 0.020 %
Silver, Ag 60.5 - 62.5 %
60.5 - 62.5 %
Zinc, Zn <= 0.0020 %
<= 0.0020 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000107 ohm-cm
0.0000107 ohm-cm
Processing Properties Metric English Comments
Processing Temperature 707.2 - 788 °C
1305 - 1450 °F
Brazing Range
Descriptive Properties Value Comments
Color Silver-White
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