Technique:Cold Rolled Hot Rolled

Piano wire, or "music wire", is a specialized type of wire made for use in piano strings. 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 placed upon piano strings; accordingly, piano wire is also used for a number of other purposes, including springs, surgical uses, and in special effects.

Specification of NI-SWPA/B Nickel-Coated Piano Wire:
2) Technique:Cold Rolled Hot Rolled
3)Size Diameter:Φ0.23 Φ0.25 Φ0.26 Φ0.28 Φ0.3 Φ0.32 Φ0.35 Φ0.38 Φ0.4 Φ0.43 Φ0.45  

Φ0.5 Φ0.55 Φ0.6 Φ0.65 Φ0.7 Φ0.75 Φ0.8 Φ0.9 Φ1.0 Φ1.2 Φ1.4 Φ1.5 Φ1.6 or customized.

4) Material grade:
200 series: 201,202,202Cu,204Cu
400 series: 409,410,420,430,430F,431,440c,444,446
600 series: 630,631 (17-4ph,17-7ph)
Others:153Ma,254SMo,253Ma,654SMo,F15,Invar36,1J22,N4,N6 etc
Alloy : Alloy 20/28/31;
Haynes: Haynes 230/556/188;
Inconel: Inconel 100/600/601/602CA/617/625713/718738/X-750,Carpenter 20;
Incoloy: Incoloy 800/800H/800HT/825/925/926;
GH: GH2132,GH3030,GH3039,GH3128,GH4180,GH3044
Monel: Monel 400/K500
Nitronic: Nitronic 40/50/60;
Nimonic: Nimonic 75/80A/90 ;

Packaging of NI-SWPA/B Nickel-Coated Piano Wire:

Shanghai Metal Products are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

1) Shanghai Metal Standard

2) Customization

Application of NI-SWPA/B Nickel-Coated Piano Wire:

Piano wire is also used in the fabrication of springs, fishing lures, special effects in the movie industry,scaffold cross-bracing, orthodontic and pharyngial surgery, and for the cutting of cheese and soap. It is also commonly used in hobby applications such as model railroading, both control line and radio-controlled aircraft, and knitting.At least in urban legend, it is employed by assassins as a garrote.


It is suitable for making all kinds of pressure, tension and torsion springs. It is suitable for winding all kinds of springs, automobile engine valve bombs, precision instruments, electrical equipment, production machinery, brake spring, clutch spring, refrigerator compressor spring and other springs under dynamic load


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