Copper Nickel tubes, 30% – C71500 – has, in general, the best resistance of any of the copper alloys to impingement attack and to corrosion from most acids and waters. It is being used in severe corrosive conditions in which service lives longer than those of other copper alloys are desired.
| UNS No. | C71500 – BSI No. CN107 – ISO Name CuNi30Mn1Fe |
| Chemical Comp. (%) | Cu rem / Ni 29 ~ 33 / Pb 0.05 / Fe 0.40 ~ 1 / Zn 1 max |
| ASTM Spec. | B 111, B 359, B395, B 466, B 467, B 543, B 552 |
| ASME Spec. | SB 111, SB 395, SB 466 |
| Applications | Condenser, Evaporator and Heat Exchanger tubes; Distiller tubing; Salt Water piping. |
| Temper | O61 Annealed / HR50 Drawn & Stress Relieved |
Copper Nickel tubes 30% C71500
| Properties * | Metric | English |
| Density | 8.94 g/cc | 0.323 lb/in³ |
| Tensile Strength min.- O61 -/- HR50 | 360 MPa -/- 495 MPa | 52 ksi -/- 72 ksi |
| Yield Strength min.- O61 -/- HR50 | 125 MPa -/- 345 MPa | 18 ksi -/- 50 ksi |
| CTE, linear | 16.2 10-6/°C @ 20.0 – 300 °C | 9.0 10-6/°F @ 70.0 – 570 °F |
| Specific Heat Capacity | 0.09 cal/g-°C @ 20ºC | 0.09 BTU/lb-°F @ 70ºF |
| Thermal Conductivity | 29 W/m-K @ 20.0 °C | 17 BTU/ft2/ft/h/°F @ 70.0 °F |
| Melting Point | 1171 – 1238 °C | 2140 – 2260 °F |
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