Piano steel wire is also called piano steel wire, which belongs to high carbon steel. The piano steel wire is cold drawn after quenching in a lead bath. It has relatively high strength and elasticity and is a widely used small spring material. The quality and function requirements of the steel wire are severe. In addition to the tensile test, it also needs to be modified, corrosion, and sharp carbon experiments. According to the purpose, it can be divided into piano steel wire used to make various important springs, various high-stress mechanical springs and valve springs.
Uses: Used to make steel wire for piano strings, valve springs and high-stress springs.
Features: It has the characteristics of high strength, elasticity, fatigue resistance, creep resistance and resistance, smooth and clean surface, strong rust resistance and good music function. Steel for steel wire includes carbon steel and stainless steel. Carbon piano steel wire is made of high-carbon high-quality carbon structural steel and carbon tool steel. The content of sulfur and phosphorus in steel must not exceed 0.025%, and the content of copper must not exceed 0.20%. The diameter of the piano wire is about 0.08～6mm. Each coil of steel wire shall consist of one steel wire, and no welded joints are allowed. The steel wire should have regular tensile strength and modification functions. The depth of the total decarburization layer on one side of the piano steel wire used as the valve spring shall not exceed 1% of the wire diameter. The surface of the steel wire must not have cracks, folds, scars, cracks, iron oxide scale and rust, and the surface condition of the steel wire is not polished, polished, or coated. The coated steel wire has the characteristics of bright, beautiful and abrasion resistant. Coating materials include cadmium, tin and zinc-nickel alloy.
Hangzhou Co., Ltd. is located in the west of Shenzhen City, Guangdong Province, with the Pearl River Estuary in the west, Longgang District in the east, Nanshan District and Futian District in the south, Lingdingyang in the west and Dongguan in the north. Convenient road traffic: Guangshen Expressway, Jihe Expressway, Meiguan Expressway, Longda Expressway, Nanguang Expressway, Yanjiang Expressway, etc.; National Road: 107 National Road; Baoan Road, Nanguang, Nanping, Fulong and other roads.
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