Silver Braze 40Ni2

AWS: BAg-4

Silver Braze 40Ni2 is an intermediate temperature brazing alloy for use on stainless steels, mild steels, cast and malleable irons and 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.

Available Forms

Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.


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.


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. The following results are based on butt joints brazed from 18-8 stainless steel: Tensile Strength (lbs/in2) 80,500 65,600 51,700 38,000 13,600 7,700 Test Temp.(°F) Room Temp. 200 400 600 800 1000 Elongation (%,2'gage length) 1.6 2.4 1.5 0 0 0


American Welding Society (AWS)



1240 F / 671 C


1435 F / 779 C


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.

Silver Braze 40Ni2 AWS: BAg-4

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