Copper strips.
Like C22000,it is an alpha brass nominally composed of 89% copper and 9% zinc, but it also contains abt. 2% lead in order to impart free-cutting characteristics. The relatively low zinc content of C31400 provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. Alloy C31400 is also suitable for outdoor use due to its resistance to stress corrosion cracking and to corrosion in general, but where the highest strength is not required.
C17300 leaded beryllium copper.
CuCr1Zr UNS.C18150 Chromium Zirconium Copper C18150 is an excellent and unique copper alloy with high electrical conductivity, hardness, and ductility, moderate strength, and excellent resistance to softening at elevated temperatures. The addition of 0.1% zirconium (Zr) and 1.0% chromium (Cr) to copper results in a heat treatable alloy which may be solution treated and subsequently aged to produce these desirable properties. Rod is usually supplied from the mill in the fully aged and drawn condition so no further heat treatment is required by the fabricator. The softening temperature of properly heat treated C18150 rod exceeds 500ípC as compared to unalloyed pure copper which softens at 200ípC, and silver bearing coppers which soften at 350ípC.
CuSn5 UNS.C51000 Phosphor Bronze Alloys, with a nominal composition of 94.80% copper and 5.0% tin, deoxidized with 0.2% phosphorus is the most widely used of the phosphor bronzes, which offering an optimum combinations of such engineering properties as high strength and ductility.
