Music Wire Springs
Music wire is the most popular material used for coiled springs and is recommended by most spring designers. It has a high and consistent tensile strength, an ability to take severe bends, and a long useful life. In addition, its cost is very similar to the lower quality carbon steels, especially when the wire diameter is small and the quantity needed is low.
However, there are some issues with using music wire.
- It is not corrosion resistant. Applying a protective coating, like zinc plating, can help slow corrosion. However, if the spring is exposed to harsh elements, stainless steel may be best.
- It cannot withstand high temperatures above 250ᴼF. For high temperature requirements, switch to 302 stainless steel.
- It loses its high tensile strength as the wire diameter increase. Generally spring designers will suggest oil temper at these large wire diameters.
- Is not very cost effective in low stress and large quantity application. For large production needs and low stress applications, hard drawn carbon steel is the way to go.
For more information about the properties of music wire check out our glossary.
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