Using Low Melting Point Alloys for Casting

Posted November 27th 2018

Low melting point alloys

Low melting point alloys (sometimes referred to as fusible alloys) fulfil a number of functions throughout the manufacturing industry. Boasting a number of interesting properties unique to them, they have numerous applications for tools and components.

What are low melting point alloys?

The name pretty much gives it away: these are alloys that can be melted at a low temperature (by which we mean 300° or under). However, this is the least interesting thing about them. Many are eutectic, meaning that their melting point as an alloy is lower than either of the melting points of their constituent metals. Other low melting point alloys have a variable melting point, resulting in an unusual composition as its temperature fluctuates between the alloy’s solid and liquid states.

Low melting point alloys for casting

Why use low melting point alloys for casting?

Traditional casting involves pouring a metal into a mould and creating a solid cast from it. However, creating the mould in the first place is a difficult job, since the material used must be able to withstand the heat of the metal being poured into them, and can often be difficult and expensive to manufacture in the first place. Advances in 3D printing have sought to remedy this with intricate moulds made from plastic, but these would liquefy under the extreme temperatures of most molten metals. By using low melting point alloys for casting, you can sidestep this issue and produce clean, detailed casts for components and tools every time.

Here at William Rowland, we provide an extensive range of low melting point alloys for casting and other applications. Most of our alloys are produced in-house at our own foundry in the heart of Birmingham and are tailored to meet our clients’ unique specifications. Contact William Rowland today on 0114 276 9421 to discuss your requirements with one of our specialist team members, who will be able to advise on the right low melting point alloys to meet your specific needs.