Silver Braze 50
AWS: BAg-6
Silver Braze 50 may be used on copper, brass, nickel-silver, bronze, steel and other non-ferrous alloys melting above 1450°F (765°C). SB50 has a flow point low enough for most non-ferrous alloys, combined with ductility, high tensile strength and good corrosion resistance, which makes it suitable for various commercial applications. On heavily galvanized or tinned steel its low zinc content permits absorption of more zinc or tin without joint embrittlement. One of the common uses for SB50 alloy has been in brazing of steam turbine blades.
Available Forms
Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.
Characteristics
Silver Braze 50 is an intermediate temperature silver brazing filler metal with a fairly long (175°F/100°C) melting range. This long melting range is helpful when wide gap joints are brazed and is useful in producing large joint fillets to reduce the notch effect on stressed assemblies. This alloy exhibits a high degree of ductility and malleability, which is an advantage when parts are cold worked after brazing.
Properties
The properties of a brazed joint are dependent upon numerous factors including base metal properties, joint design, metallurgical interaction between the base metal and the filler metal. The results listed below were generated from brazed butt joints which were tested under standard room temperature conditions. Tensile Strength (lbs/in2) Copper: 25,000 - 30,000 Brass: 45,000 - 50,000 Nickel-Silver: 45,000 - 55,000 Elongation (%, 2" gage length) Copper: 13-22 Brass: 20-36 Nickel-Silver: 14-28
Specs
American Welding Society (AWS)
BAg-6
Solidus
1270 F / 688 C
Liquidus
1425 F / 774 C
Disclaimer
The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this (and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances.
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