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Four categories of products: electric heating alloys, high temperature corrosion-resistant alloys, welding materials, pure nickel

Expansion Alloys

Basic Properties: Expansion alloys are divided into low-expansion alloys and constant-expansion alloys, the latter also known as sealing alloys. In addition to having a specific thermal expansion coefficient, expansion alloys are required to have good sealing performance, weldability, corrosion resistance, machinability, and free-cutting properties depending on their intended use. They must not undergo phase changes that significantly alter their expansion characteristics within the operating temperature range. These products are generally available in the form of rods, plates, strips, wires, and tubes.

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