Copper Nickel tubes C70600
Copper-nickel (also known as cupronickel) alloys offer excellent corrosion resistance to seawater and good fabricability. The addition of nickel to copper improves strength and corrosion resistance while allowing the alloy to remain ductile, other elements can be added to copper-nickel to increase strength, corrosion resistance, hardening, weldability and castability. The nickel-copper alloy has been widely used for r marine applications. C70600 often known as 90-10 copper-nickel, is the alloy with 90% copper and 10% nickel, has been widely used in the automotive, admiralty, shipping, offshore as well as power generation.
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Description
Copper Nickel tubes, 10% – C70600 – exhibits excellent resistance to impingement attack. It is also highly resistant to SCC. This alloy is suitable for Marine condenser tube installations in place of Aluminum Brass, especially where higher water velocities are encountered.
| UNS No. | C70600 – BSI No. CN102 – ISO Name CuNi10Fe1Mn |
| Chemical Comp. (%) | Cu rem / Ni 9 ~ 11 / Pb 0.05 / Fe 1 ~ 1.8 / Zn 1 max / Mg 1 max |
| ASTM Spec. | B 111, B395, B466, B 552 |
| ASME Spec. | SB 111, SB 395, SB466 |
| Applications | Condenser, Evaporator and Heat Exchanger tubes; Distiller tubing; Salt Water piping. |
| Temper | O61 Annealed / H55 Light-Drawn |
| Properties * | Metric | English |
| Density | 8.94 g/cc | 0.323 lb/in³ |
| Tensile Strength min.- O61 -/- H55 | 275 MPa -/- 310 MPa | 40 ksi -/- 45 ksi |
| Yield Strength min.- O61 -/- H55 | 105 MPa -/- 240 MPa | 15 ksi -/- 35 ksi |
| CTE, linear | 17.1 10-6/°C @ 20.0 – 300 °C | 9.5 10-6/°F @ 70.0 – 570 °F |
| Specific Heat Capacity | 0.09 cal/g-°C @ 20ºC | 0.09 BTU/lb-°F @ 70ºF |
| Thermal Conductivity | 45 W/m-K @ 20.0 °C | 26 BTU/ft2/ft/h/°F @ 70.0 °F |
| Melting Point | 1099 – 1149 °C | 2010 – 2100 °F |
If any questions,please contact sales@grandsteeltube.com
