Density Density |
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Thermal Conductivity Thermal Conductivity |
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Surface Resistivity (Text) Surface Resistivity (Text) |
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For Use On For Use On |
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Often used as a safe alternative to mercury in thermometers, thermostats, and switches, these gallium alloys are also good for transferring heat and electricity in soft electronics that must bend and flex. With a low melting point, they’re a liquid at room temperature. These alloys wet (stick to) both metallic and nonmetallic surfaces, and can even be used as a high-temperature lubricant for bearings. They will, however, dissolve aluminum at room temperatures and many other metals at higher temperatures. They’re also known as Galinstan.
Gallium alloys with 66.5% gallium have a lower melting temperature than those with 75.5% gallium. They are not, however, as good for transferring heat.
Gallium alloys with 75.5% gallium are better than those with 66.5% gallium for transferring heat. They also have a higher melting temperature.
Material Composition | Container | ||||||||
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Gallium | Indium | Tin | Size, oz. | Type | Melting Temperature, °F | Maximum Temperature, °F | For Use On | Each | |
66.5% | 20.5% | 13% | 0.1 | Syringe | 50° | 930° | Glass, Nickel Alloys, Quartz, Stainless Steel, Steel | 0000000 | 0000000 |
75.5% | 24.5% | __ | 0.1 | Syringe | 60° | 930° | Glass, Nickel Alloys, Quartz, Stainless Steel, Steel | 0000000 | 000000 |