Belmont Metals Inc.

117 F-47 C Low Melting Alloy

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.

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