Copper in its pure form is not strong enough like the other alloy metals. Therefore the Copper Nickel Alloy Pipes includes material such as iron and manganese for additional strength. There are different pressure classes of copper that are used in calculation for the need of the correct grade. The Schedule 40 Copper Nickel Pipes can withstand mild pressures whereas the Schedule 80 Copper Nickel Pipes can withstand high pressure environments.
Physical Properties of Copper Nickel Condenser Tubes
| Property of copper nickel pipe | Metric in °C | Imperial in °F |
| Melting Point | 11,500°C | 21,000°F |
| Melting Point | 11,000°C | 20,100°F |
| Density | 8.94 gm/cm³ @ 20°C | 0.323 lb/in³ @ 68°F |
| Specific Gravity | 8.94 | 8.94 |
| Coefficient of Thermal Expansion | 17.1 x 10 -6 / °C (20-300°C) | 9.5 x 10 -5 / °F (68-392°F) |
| Themal Conductivity | 40 W/m. °K @ 20°C | 23 BTU/ft³/ft/hr/°F @ 68°F |
| Thermal Capacity | 380 J/kg. °K @ 20°C | 0.09 BTU/lb/°F @ 68°F |
| Electrical Conductivity | 5.26 microhm?¹.cm?¹ @ 20°C | 9.1% IACS |
| Electrical Resistivity | 0.190 microhm.cm @ 20°C | 130 ohms (circ mil/ft) @ 68°F |
| Modulus of Elasticity | 140 GPa @ 20°C | 20 x 10 6 psi @ 68°F |
| Modulus of Rigidity | 52 GPa @ 20°C | 7.5 x 10 6 psi @ 68°F |
Copper Nickel Alloy Pipe Chemical Composition Chart
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 90-10 | 88.6 min | 1.00 max | 0.5 max | 9-11 max | 1.8 max | 1.00 max |
| Cu-Ni 70-30 | 65.0 min | 1.00 max | 0.5 max | 29-33 max | 0.4-1.0 | 1.00 max |
Mechanical Analysis of ASTM B466 Copper Nickel Tube
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| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Cupro Nickel 90-10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 90-1000 psi | 30 % |
| Cupro Nickel 70-30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 90-1000 psi | 30 % |
Jiangsu Hangdong Metal Co., Ltd. is a casting and processing technology enterprise that produces pure copper, brass, bronze and copper-nickel alloy copper-aluminum plate and coil, with advanced production equipment and inspection instruments. It has 5 aluminum production lines and 4 copper production lines to produce all kinds of standard copper plate, copper tube, copper bar, copper strip, copper tube, aluminum plate and coil, and non-standard customization. The company provides 10 million tons of copper materials all year round. The main product standards are: GB/T, GJB, ASTM, JIS and German standard.Contact us:info6@zt-steel.cn
Post time: Dec-29-2023
