Lucas-Milhaupt Trimet® 258 (Plymetal® 5031) Silver base Braze Filler Composite

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Lucas-Milhaupt Trimet® 258 (Plymetal® 5031) Silver base Braze Filler Composite
Categories:	Metal; Nonferrous Metal; Precious Metal; Silver Alloy; Solder/Braze Alloy
Material Notes:	Trimet 258 is a three layer composite metal sandwich consisting of a copper core clad on each side with Easy Flo 3 alloy. The relative thicknesses of the three layers are in a 1/2/1 ratio. Other relative thickness ratios can be produced for special applications, if needed. Trimet 258 is useful for brazing large carbide tools inserts with braze surface areas in excess of 0.5in2 or linear dimension over 0.75 in. This product is used as pre-placed shim at the interface of the parts being joined. Available forms: strip, engineered preforms, specialty preforms. Information provided by Lucas-Milhaupt.
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Thermal Properties	Original Value	Comments

Melting Point	1170 - 1270 °F
Solidus	1170 °F
Liquidus	1270 °F

Processing Properties	Original Value	Comments
Processing Temperature	1270 - 1400 °F	Brazing Range

Component Elements Properties	Original Value	Comments
Cadmium, Cd	15 - 17 %
Copper, Cu	14.5 - 16.5 %
	>= 99.9 %	Core
Nickel, Ni	2.5 - 3.5 %
Other, total	<= 0.15 %
Silver, Ag	49 - 51 %
Zinc, Zn	13.5 - 17.5 %

Descriptive Properties
Braze Filler Metal	Easy Flo 3	Clad portion

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NLUCM9847 / 254792

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