Standard Grade Trade Name UNS No. British Spec European Spec Copper Nickel 70/30 UNS C71500 - - Specification ASTM B 171 Typical use The alloy 715 (C71500) has all the characteristics of CuNi 90/10, but also offers excellent corrosion resistance in high velocity sea water. Also the operating temperature is much higher than that of CuNi 90/10. The alloy can assure a long service life and reliability. Density Melting Range Specific Heat 8.94  g/cm3 1170-1240 °C .09 cal/gm/°C @ 20 C Technical Data Sheet Chemical Composition Limits Weight% Cu Ni Mn Pb Fe Zn Alloy 715 Rem. 29.0-33.0 1.0 max 0.05 max 0.40-1.0 1.0 max Typical Mechanical Properties Material Tensile Strength Yield Strength 0.2% Elongation % Hardness, Rockwell ksi MPa ksi MPa Alloy 715 50 345 20 140 30 - Availability Alloy 715(C71500) is available in Round Bar, Flat Bar, Sheet, Plate, Strip, Tube, Pipe, Forging stock, Hexagon, Billet. Please contact Sales for further availability. Services Every order is treated as carefully and timely as possible, and shipments are handled to ensure that all export procedures are followed correctly so that your order arrives in perfect condition as quickly as possible. Disclaimer Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.