OYAIDE SS-47 500g acoustic solder

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  • Regular price $176.00
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All items are in original boxes and shipped from Japan.
Condition : New, all accessories are included.

The concept of SS-47 is the elimination of individuality. Creating items to maximize the characteristics of cables and connectors. The acoustic solder \”SS-47\” uses high-purity 4N (99.993% or more) tin, which eliminates impurities to the utmost, as the base tin. In order to improve conductivity, pure silver was generously introduced. In fact, the amount is 4.7%, which is unprecedented. Furthermore, in order to make eutectic solder, it contains 1.7% copper, which has the second highest conductivity among metals after silver.
Of course, we also carefully considered flux ( Yani ). In order to suppress surface corrosion, residual chlorine is kept below 0.12%, and the flux used in SS-47 has a special substance formulation and exhibits an amazing workability with a spread rate of 83.

These blending ratios are not determined solely by numerical data and workability, but as an audio solder, sound quality is given top priority. After conducting numerous hearing tests on proto-models with various blending ratios, we realized \“ eliminating individuality\”, and finally completed the acoustic solder SS-47. The SS-47 is the strongest tool for maximizing the performance of the parts used and achieving stress-free craft work.

Material/compound ratio
Normal solder has a tin purity of about 99.9%(3N) due to cost considerations. \“SS-47\” further increases purity, eliminates impurities to the utmost, and adopts high-purity tin of 99.993%(4N) or higher.
It also contains silver and copper to improve conductivity and prevent solder from being eaten. Moreover, in the case of regular alloy solder, the silver blending ratio is 3〜3.5%, but \”SS-47\” generously adds a whopping 4.7.
Furthermore, it contains 1.7% copper, which has the second highest conductivity among metals after silver. This combination ratio dramatically improved conductivity and succeeded in setting the eutectic point to 217 degrees.

Pursuit of ease of use
Spread rate 83%. With a 40W soldering iron, solder can penetrate in seconds.
It also cools quickly at a eutectic point of 217 degrees, eliminating heat damage to surrounding materials. Furthermore, regardless of your skills, you will be surprised by the overwhelming workability and beautiful finish. Electrical signals flow over the surface of the material. This is called the epidermal effect, and is especially noticeable in the high frequency band. The SS-47 has the biggest advantage of eutectic solder: the smooth surface and no signal characteristics.
Surface smoothness. This means there is no signal disturbance and strain is minimized.

SS-47 specifications
Material High purity 4N(99.993% or more)tin:93.6%, sterling silver:4.7%, pure copper 1.7%
Flux 3.3% Chlorine content 0.12% or less, small scattering, no washing type 
Wire diameter 1.0mm
dissolution temperature 217 degrees( eutectic point)
Other Pb-free and RoHS compatible
Contents: 500g

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