Uses of Spring Wire

Piano Wire ASTM-228 JIS G 3522	General Use – High Durability SWP-A: 0.08 mm – 7.0 mm SWP-B: 0.08 mm – 7.0 mm According to JIS G 3522, music wire is categorized into three types: A, B, and V. Each type has clearly defined standards for tensile strength, coiling properties, torsion, and bending characteristics. Type A music wire offers high torsional stress resistance and excellent fatigue strength, making it ideal for applications subjected to repeated loads. Type B wire is suitable for springs requiring high tensile strength and resistance to permanent deformation. Type V is designed for applications demanding even higher strength and extended spring life.
Carbon Steel Wire Hard steel wire Spring Steel JIS G 3521 Hard drawn steel wires	SW-A ：Hard steel wire type A 0.08mm~10.0mm SW-B ：Hard steel wire type B 0.08mm~13.0mm SW-C ：Hard steel wire type C 0.08mm~13.0mm Hard steel wire is classified and named according to its carbon content, diameter, mechanical properties and purpose. JIS G 3521 divides it into three types: SW-A, SW-B and SW-C The hardness of the wire is determined by the carbon content, with the minimum carbon content being 40C and the maximum being 80C.
Stainless steel wire for springs JIS G 4314	General use, heat resistant, corrosion resistant 304 It is a universal stainless steel, which is widely used in the production of springs that require good comprehensive performance and have better performance in spring forming and turning. 301 Suitable for various compression situations where higher strength is required. For compression springs However, if the wire is deformed greatly, it will break due to its high carbon content. 302 Stainless steel is essentially a variant of 304 stainless steel with a higher carbon content. Through manufacturing, it can obtain higher strength. But in essence, it is not much different from 304 304 can also be processed at more levels to increase its strength and even surpass 302, so there is not much difference between the two. 316 Stainless steel contains aluminum, so its resistance to pitting corrosion in marine and chemical industrial environments is much better than that of 304 stainless steel.
Oil tempering line （JIS G3560）	Oil tempered carbon steel wire for spring SWO (JIS G 3560) General use Oil tempered carbon steel wire for valves SWO-V (JIS G 3561) Fatigue resistant Oil tempered silicon chrome steel wire for valves SWOSC-V (JIS G 3566) Heat resistance, fatigue resistance 48-55 Oil tempered chrome vanadium steel wire for valves SWOCV-V (JIS G 3565) Heat resistance, fatigue resistance 41-55 A spring material that is more durable than piano wire. Commonly used in automotive shock absorbers and engine valve springs
Galvanizing line	Nickel-plated wire, galvanized wire SWIC-G SWIC-F etc. A wire material that has been pre-plated with zinc or nickel on the surface of carbon steel wire or piano steel wire.
Iron wire	Models 1005–1045 feature general-purpose wire diameters, perfect for household hardware, crafts, and related uses.
Aluminum wire	It is three times lighter than the current iron wire. It is classified into many types and is generally used for lightweighting.