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Indium Corp. IndalloyÂ® 281 Bi-Sn Solder Alloy

Category	Metal , Nonferrous Metal , Bismuth Alloy , Solder/Braze Alloy
Manufacturer	Indium Corporation of America
Trade Name	Indalloy®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Indium Corp. IndalloyÂ® 281 Bi-Sn Solder Alloy.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Good low melting point solder for electronics assembly of for applications where Cd and Pb are to be avoided, and for thermo-electric applications. Shear rate sensitive.Information provided by the manufacturer, Indium Corporation.

Physical Properties	Metric	English	Comments
Density	8.56 g/cc	0.309 lb/inÂ³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	23 @Load 4.00 kg	23 @Load 8.82 lb	2mm ball
Tensile Strength, Ultimate	55.2 MPa	8010 psi
Elongation at Break	55 %	55 %	% elongation on 5.65 (sq. root Area) gauge length
Shear Strength	3.40 MPa	493 psi	Shear Bond Holding Strength

Thermal Properties	Metric	English	Comments
Heat of Fusion	44.8 J/g	19.3 BTU/lb
CTE, linear	15.0 Âµm/m-Â°C @Temperature 20.0 Â°C	8.33 Âµin/in-Â°F @Temperature 68.0 Â°F
Specific Heat Capacity	0.167 J/g-Â°C	0.0399 BTU/lb-Â°F	Solid
	0.201 J/g-Â°C	0.0480 BTU/lb-Â°F	Liquid
Thermal Conductivity	19.0 W/m-K @Temperature 85.0 Â°C	132 BTU-in/hr-ftÂ²-Â°F @Temperature 185 Â°F
Melting Point	138 Â°C	280 Â°F	Eutectic
Solidus	138 Â°C	280 Â°F
Liquidus	138 Â°C	280 Â°F

Component Elements Properties	Metric	English	Comments
Bismuth, Bi	58 %	58 %
Tin, Sn	42 %	42 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000380 ohm-cm	0.0000380 ohm-cm

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