CuNi 44
8.0~30.0 USD
| Min. Order: | 1 Kilogram |
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| Trade Term: | FOB |
| Payment Terms: | T/T, WU |
| Supply Ability: | 5 ton/ month |
| Place of Origin: | Shanghai |
Company Profile
| Location: | China (Mainland) |
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| Business Type: | Manufacturer |
Product Detail
| Model No.: | CuNi |
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| Means of Transport: | Ocean |
| Type: | Furnace |
| Processing Type: | Machining Equipment |
| Brand Name: | wisdom |
| Wires: | 0.05-10mm |
| Ribbons: | 0.05*0.2-2.0*6.0mm |
| Strips: | 0.05*5.0-5.0*200mm |
| Bars: | D10-100mm |
| Production Capacity: | 5 ton/ month |
| Packing: | cartons, braided bags, spools, coils |
| Delivery Date: | 20-30 days (depend on the quantity of the order) |
Product Description
CuNi44, also called Constantan, has a very low temperature coefficient, high electrical resistance, high ductility and non-corroding properties. It is suitable for use at temperatures up to 600°C (1110°F). As a very malleable, very ductile alloy, it has a very good resistance to oxidation.
The alloy is non-magnetic. It is suitable for electrical resistors, potentiometers, heating wires, heating cables and mats. Ribbons are used for heating of bimetals.Another field of application is manufacturing of thermocouples because it develops a high electromotive force (EMF) in association with others metals.
Chemical Composition
Alloy | Ni% | Mn% | Fe% | Cu% |
CuNi44 | 43 | Max 0.5 | - | Bal. |
Physical Data
Density | 8.9 g/cm3 |
Specific Heat | 0.41(J/kg 20°C) |
Electrical Resistivity | 0.049×10-6ohm.m |
Melting Point | 1210°C |
Maximum Operating Temperature | 600°C |
Coefficient of linear expansion (coeff 10-6/°C) | 14 from 20 to 1000°C |
Typical Mechanical Properties
Mechanical Properties | CuNi44 |
Tensile Strength | 420 Mpa |
Elongation | 25% |