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General Description:

Phosphor Bronze is the alloy where 0.03 ～ 0.35％ of phosphorus content as a deoxidizing agent is added to a component consisting of 3 ～ 9％ tin content and 91 ～ 97％ copper content. Both its strength and spring properties are improved by increasing the tin content in this composition. On the other hand, high electrical conductivity can be gained by decreasing the tin content.

Phosphor bronze is used as material for electrical devices due to its excellent strength and spring properties, and is widely used as high-reliability spring materials due to its excellent stress corrosion cracking resistance. On the basis of long-term studies and actual results, our phosphor bronze is processed through repeated annealing and rolling to continuous casting slabs, and its plates and strips are finally finished by a precision 6-high mill or a 20-high mill, while its wires are finished by a reverse-tension drawing mill. As a result, its extremely stabilized qualities are rated highly.

Specifications:

1) Chemical Composition:

2) Mechanical Properties:   

   Temper: O(Soft),1/4H,1/2H,H,EH,SH,

Main Properties:

* Excellent yield strength and fatigue resistance.

* Excellent elastic property.

* Good forming and bending performance.

* Good malleabillity and anti-corrosion property.

Forms Available:

1) Strip: Thickness 0.15- 2.5mm;Width:20-400mm;Coil weight:1-2 ton.

2) Sheet: Thickness 0.15- 2.5mm;Width:100-400mm;Length:

              100-1220mm; Packing weight:1-2 ton.

Application:

*CPU socket, mobile keyboard,auto terminal, connector,

*Electronic connector and switch,

*Bellows, springs, harmonica oscillation reeds,

*Electrical device components, precision instruments,wear-resistant parts of instruments,

*Anti-magnetic parts, and electrical componets for auto part.