Domestically produced C71500 and C70600 cupronickel alloys resist sea-water erosion and corrosion and biofouling. C71500 is a moderate to high-strength, copper-nickel alloy, and C70600 is a moderate-strength, copper-nickel alloy. Both alloys come in rod and round forms as well as customer-specified machined parts. Datasheets are available at www.brushwellman.com.