Silver Braze 40Ni2
Silver Braze 40Ni2 Technical Data
Silver Braze 40Ni2 is an intermediate temperature brazing alloy for use on stainless steels, mild steels, cast and malleable irons on various non-ferrous alloys. This alloy is particularly useful for brazing stainless steel food containers and food handling equipment where a cadmium free brazing alloy is specified.
Silver Braze 40Ni2 is an intermediate temperature silver brazing filler metal with a fairly long melting range. It has a tendency to liquate (separation into low and high melting constituents) and therefore it is preferable to use this filler metal where the assembly can be heated rapidly through the filler metal melting range, or where the assembly can be preheated before the filler metal is applied. Flux is normally used.
Properties of Braze Joints
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. Tensile strength of joints in butt joint configuration for stainless steels has ranged from 72,000 to 110,000 lbs/in2 PSI. Data for shear strengths tested at room temperature included values in range of 35,000 to 40,000 PSI.
Silver Braze 40Ni2 conforms to American Welding Society (AWS) A5.8/A5.8M BAg-4
Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.
- AWS: BAg-4
- Lucas: Silvaloy 403
- PI: Silver Braze 40Ni2
- UNS: P07400
- Brazing Temperature Range High: 1535 F / 835 C
- Brazing Temperature Range Low: 1485 F / 807 C
- Liquidus: 1435 F / 779 C
- Solidus: 1220 F / 660 C
- Ag: 40%
- Cu: 30%
- Zn: 28%
- Ni: 2%
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