Piano wire
Material for piano strings
Piano wire
Piano wire, or "music wire", is a specialized type of wire made for use in piano strings but also in other applications as springs. It is made from tempered high-carbon steel, also known as spring steel, which replaced iron as the material starting in 1834. Piano wire has a very high tensile strength to cope with the heavy demands of its primary role, allowing it to also be used in such varied purposes as fishing lures, surgicaly, and special effects.
Read on Wikipedia · Image Matt Billings, CC BY 2.0
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