Piano Wire

Piano wire, is a kind of music wire used for the piano string and other uses such as springs. These wires are commonly made of metal and alloy wires such as aluminum, brass, copper, or stainless steel. Piano wire comes in a variety of sizes, ranging from 24 gauge (0.5mm), to 6 gauge (4.8mm).
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Stainless Steel Piano Wire

Diameter 0.15MM to 12MM (STEEL WIRE)


High Carbon Steel Piano Wire

Diameter 0.15MM to 12MM (STEEL WIRE)



Diameter 0.8mm

Quality per spec SWPB

T/S 235-260 N/mm2 or equivalent


Raw Material: Quality carbon steel, 60 #, 65 #, 70 #, 72A, 82B etc.

Standard : ISO, SGS, BS, DIN, JIS, API , EN, ASTM, etc.


Piano Wire Main Applications



Product Code Application
Music wire SWP-M Piano strings
Tin-plated music wire SWP-MT
Piano wire Type A SWP-A Springs, mainly for dynamic loads
Type B SWP-B
Type V SWP-V Valve springs or equivalent springs
Piano wire for precision spring Type A(Saint) SWP-A(S) Mainly precision springs
Type B(Saint) SWP-B(S)
Type A(Saint S) SWP-A(SS) Mainly precision springs with luster
Type B(Saint S) SWP-B(SS)
Straight piano wire Type A SWP-AS Mainly torsion and forming springs
Type B SWP-BS




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