Copper Nickel Pipe

Introduction
Copper Nickel Pipe is a metal pipe made up of copper nickel alloy. The copper nickel alloys contain copper and nickel and in addition some iron and manganese for strength. There are different grades in the cupronickel material. There are pure copper variations and there are alloyed ones. The Class 200 Cuni Pipes are a 90/10 copper grade. It is highly electrically conductive and thermally conductive. It is resistant to ammonia in seawater and is resistant to acidic conditions. The Cupro Nickel Seamless Pipes are made through cold drawing procedures and it has higher dimensional precision. The copper material is highly ductile. It could be bent without the need for special tools.

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.

Technical Data

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

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