Featuring 99.99% Indium and Indium-Based Low Melting Alloys

Indium was discovered by the German chemists Ferdinand Reich and Hieronymus Richter in 1863. Reich and Richter had been looking for traces of the element thallium in samples of Zinc order, when they saw a brilliant indigo line in the sample’s spectrum which revealed the existence of Indium. Indium is about as abundant as silver but is much easier to recover since it typically occurs along with Zinc, Iron, Lead, and Copper ores.

Indium has a wide range of uses: as a thin alloy layer in high performance bearings, in the electronics industry it has been widely used to manufacture flat screen televisions. It is used as a component of transistors and in computer equipment; in low melting point alloys and in solders. Some of these low melting point alloys are used for glass lens grinding and polishing, and as plugs for fire sprinkler systems. Indium is also used as catalysts and in the purification for the manufacture of certain organic chemical products, particularly man-made fibers. The metal also has many minor uses in research and laboratory techniques.

Featured products

  • 99.99% Pure Indium Shot it is most notably used in the semiconductor industry, in low melting-point metal alloys such as solders, soft metal high vacuum seals and in the production of transparent conductive coatings.
    Forms:
    • Ingot
    • 1/4" and Down Shot
    • Wire
    • Bars
    Belmont Product Code IN99AAA
    Nominal Composition:
    • 99.99% In
    • Bal
  • This is a Bismuth based Eutectic low melting alloy used for tooling and production aids. It provides you with easily castable material that is ready for use as soon as it freezes. This alloy can be recovered easily and recycled into new uses a number of times. It is mainly used in the optical industry for lens blocking when grinding glass, plastic lenses and optical components. It's low melting point allows it not to distort the glass or plastic which it supports. Also can be used for proof casting as well.
    Forms:
    • 2 lb Cake Even Weight
    Belmont Product Code 2451
    Nominal Composition:
    • 44.7% Bi
    • 5.3% Cd
    • 22.6% Pb
    • 19.1% In
    • 8.3% Sn
    Technical Info:
    • Melting Point - Solidus 117 F, 47 C
    • Melting Point - Liquidus 117 F, 47 C
    • Short-Term Tensile Strength lbs/sq.in. 5400
    • Yield Temperature 117
    • Weight lbs/cu.in 0.32
    • Brinnell Hardness No. (500 kg) 12
    • Growth/Shrinkage - Time after Casting: after 2 mi.: 0.0005
    • after 1 hour: -0.0001
    • after 24 hrs: -0.0002
    • after 500 hrs: -0.0002
  • This is a Bismuth based Eutectic low melting alloy used for tooling and production aids. It provides you with easily castable material that is ready for use as soon as it freezes. This alloy can be recovered easily and recycled into new uses a number of times. It is mainly used in the optical industry for lens blocking when grinding glass, plastic lenses and optical components. It's low meeting point allows it not to distort the glass or plastic which it supports, Also can be used for proof casting as well. In comparison to its 117 Deg F. counterpart this alloy does not contain Cadmium.
    Forms:
    • 2 Lb. Cake Even Weight
    • 1/8" Dia Solid Wire
    • Capping Bars
    Belmont Product Code 2491
    Nominal Composition:
    • 49% Bi
    • 18% Pb
    • 21% In
    • 12% Sn
    Technical Info:
    • Melting Point - Solidus 136 F, 58 C
    • Melting Point - Liquidus 136 F, 58 C
    • Short-Term Tensile Strength lbs/sq.in. 6300
    • Yield Temperature 136
    • Weight lbs/cu.in 0.31
    • Brinnell Hardness No. (500 kg) 14
    • Growth/Shrinkage - Time after Casting: after 2 mi.: 0.0003
    • after 1 hour: 0
    • after 24 hrs: -0.0002
    • after 500 hrs: -0.0002