Indium Silver Foil | Indium Silver Sheet | Custom Indium Alloy Foil

Indium Silver Foil, a binary alloy of indium and Silver, boasts a low melting point, excellent thermal and electrical conductivity, superior fluidity, minimal expansion and contraction rates, and eco-friendly, non-toxic properties.

Silver-indium alloy is a binary alloy of silver and indium, with indium having a 21% maximum solubility in silver. Common ratios of indium to silver include Ag10In90 and Ag3In97. Using powder metallurgy, it can be processed into indium-silver wires and indium-silver sheets through melting and pressure processing methods.

Indium90Silver10 and Indium97Silver3 are also used as low-temperature materials and in nuclear reactor control rods.

Widely utilized as a specialized solder, particularly in microelectronics assembly and various welding applications such as glass-glass and glass-metal joints.

Furthermore, Indium-Silver alloy, including variants like In97Ag3 and In90Ag10 foils or InAg Solder Wire, can be customized to varying sizes, thicknesses and diameter to suit specific requirements. This alloy can even replace silver materials in certain applications, significantly reducing material thermal resistance.

Product Name	INDIUM SILVER FOIL
Appearance	silver-white metal
Size/ Weight	customized size
Alloy Ratio	In:Ag 90:10 97:3
Thermal Conductivity	67 W/(m·K)
Melting Point	143 / 237
Density	7.54 g/cm3
Resistivity	0.078 uΩ·m
Tensile Strength	115 kgf/cm²

Indium Silver Foil/Sheet Customization Services

We offering customized services for Indium Silver Foil , Indium Silver Sheet and Indium Silver Wire, the size range as belows:

Thickness Range: 0.05mm to 6mm

Width Range: 5mm to 500mm

Length Range: 5mm to 1000mm

Ratio: In90Ag10, In97Ag3 or as required.

We offer customization tailored to customer specifications or drawings. Additionally, we can craft indium foils in various shapes, such as holed, special-shaped, ring-shaped, and round, among others. If you have the demand for Indium Alloy Foil, you can send us your requests then our technical team will contact you for the possibility.

Indium Silver Foil/Indium Silver Sheet Advantages

Higher purity raw materials to produce In Ag Foil, less impurities and higher standard.
The surface of Indium Silver Alloy foil is oil-free and wax-free.
No oxidation on the surface of In90Ag10 Foil.
Good thickness uniformity.
ISO9001 and ISO14001 certificated manufacturer.
Vacuum processing and packaging to prevent oxidation.
To globally delivery Indium foil with door to door delivery.
We welcome custom sizes at no additional cost.
Standard sizes are stocked to minimize lead times.

In97Ag3 Foil/Sheet Applications

Ideal for creating cryogenic vacuum seals.
Pure Indium Ag based Thermal Interface Material TIM.
Able to withstand temperatures from -273 to 155°C
Thermal conductivity 10 times greater than most thermal greases and thermal sheets (84 w/m-k).
Safe for use in vacuum environments, will not outgas.
Stays malleable/deformable at cryogenic temperatures.
Indium sheet can be cut to size with scissors or an X-acto knife or razor.
It’s commonly used between laser diodes and produces excellent heatsinking between the diode and the heat sink.

Packing, Transportation and Storage

Packing: Indium Tin Foil is clamped with a double-sided shaping plate and sealed externally in a vacuum bag, 1 piece per bag.

Transportation:

By Fedex, DHL, UPS, 5-7days with door to door delivery.

By Air: 1-3days to destination airport.

By Sea:7-40days to destination port.

Storage: To extend storage time and minimize surface oxidation, please strictly seal the indium foil in its original container, ensuring a relative humidity of 55% or lower and a temperature not exceeding 22 ° C. Indium foil can also be stored in an inert atmosphere, such as a nitrogen drying oven.

Indium Recycling

The recycling of indium has important environmental significance and helps reduce the impact on the natural environment. Our company is willing to recycle used scraps. You can contact our technical team to conduct a preliminary recycling assessment through photos and videos. We will provide an assessment report to confirm whether your product can be recycled or not. If the assessment report passes , we can arrange the next procedure for receiving samples.

About our factory

As one of the leading producer in re-processing Indium materials, Aster uses it’s technological expertise to R&D and produce a range of Indium products, including Indium Foil, Indium Alloy Foil, Indium Wire, and Indium Seal. We also specialize in customizing various sizes of foils, gaskets, seals, sheets, ribbons, and rods. We will continue to supply high quality products and service to support our customers with competitive market rates.

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