Piano wire price
Piano wireFeatures: It has the characteristics of high strength, elasticity, fatigue resistance, creep resistance and toughness, smooth and clean surface, strong rust resistance and excellent musical performance. Steel for steel wire includes carbon steel and stainless steel. (See alloy steel wire) Carbon piano wire is made of high-carbon high-quality carbon structural steel and carbon tool steel. The content of sulfur and phosphorus in steel shall not exceed 0.025%, and the content of copper shall not exceed 0.20%. The diameter of the piano wire is about 0.08～6mm. Each reel of steel wire should consist of one steel wire, and no welded joints are allowed. The steel wire should have the specified tensile strength and torsion properties. The depth of the total decarburization layer on one side of the piano wire used as the valve spring shall not exceed 1% of the wire diameter. The surface of the steel wire shall not have cracks, folds, scars, cracks, iron oxide scale and rust, and the surface of the steel wire shall be non-polished, polished and coated. The coated steel wire has the characteristics of bright, beautiful and abrasion resistant. Coating materials include cadmium, tin and zinc-nickel alloy.