In the market it is not uncommon to find silver wires that are claimed a purity of 5N(99.999%), 6N(99.9999%) or even 7N(99.99999%) . However, rarely could we find proof of purity issued by a recognized organization to back up these products. How can you be sure that the silver wire you bought meets the claimed purity? Well, you probably can't.

Silver has being part of human history for thousands of years. It is most used as monetary and the purity requirement for this purpose is not high. In the market 3N silver (99.9%) is considered "pure silver" and the price is public. Many companies make silver bullion and coins from the 3N silver. 4N silver is also common and the price is a notch higher compared to 3N silver. Except in the monetary markets 4N silver also finds application in the industry. As the purity goes higher, the price goes up abruptly. The price for 5N silver is significant higher than 4N counterparts and it requires very expensive analyzer to check the purity. For 5N silver the impurity allowed is below 10ppm (parts-per-million). There is a Japanese company that supplies 6N silver at a premium price. 7N silver is not available in the market. At least not we are aware of.

Our basic silver wires are based on quality 4N casting grain that usually has a purity of 4N+(99.994% and above). With a small boost of purity in the OCC process the final product is very close to 5N in purity. 5N sliver is also available by request. Our silver sources are all ISO-9000 certified companies. The quality is very reliable and come with complete certification of purity.