![Curt Mangan 12-String Guitar Medium Phosphor/Bronze .11 to -52. # 39002](http://jakesmainstreetmusic.com/cdn/shop/products/10_48_12_String__97980.1402000224_bb5c9f00-bff8-4862-81d0-61f76a090712_{width}x.jpg?v=1646261228)
Phosphor Bronze wound strings were introduced in the early Seventies and have become the most popular acoustic string. Phosphor bronze wire is made from approximately 92% copper, 7% zinc and 1% phosphorous. Phosphor Bronze provides nice highs and lows, and pleasant subtle overtones. Phosphorous is used to help reduce tarnish and corrosion.