TRI40Ni2
AWS: BAg-4
Trimetal 40Ni2 is a three-layer composite metal consisting of a copper core faced on each side with SB40Ni2; the relative thickness of the 3 layers is in a 1/2/1 ratio. This layered design is beneficial for carbide tool inserts because the increased ductility of the copper core minimizes internal stresses introduced by differences in thermal expansion between the carbide and tool shank
Available Forms
Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.
Characteristics
Trimetal strip may also be used to braze aluminum-bronze to steel; the copper core acts as a barrier which prevents aluminum from migrating to the steel surface and adversely affecting the wetting of the SB40Ni2 to the steel surface.
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. 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
Specs
American Welding Society (AWS)
BAg-4
Solidus
1240 F / 671 C
Liquidus
1435 F / 779 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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