Home » Product List » Nickel Copper Alloys » Constantan Foil/Sheet/Strip
Product Details
Constantan is a copper-nickel alloy usually consisting of 55% Copper and 45% Nickel. Its main feature is its resistance which is constant over a wide range of temperatures. It is also called Cuprothal 49, Alloy 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 44, CuNi 44, CN49.
Other grade of copper nickel alloy are as follows:
Cuprothal 5, CN5, CuNi2
Cuprothal 6, A60, Alloy 60, 60 Alloy, MWS-60, Lohm, HAI-60, CuNi 6, Alloy 260, Nickel Alloy 60, CN10
Cuprothal 15, CuNi10, CN15
Cuprothal 30, A30, Alloy 30, CuNi23, 30 Alloy, MWS-30, HAI-30, Alloy 230, Nickel Alloy 30, CN 30
CuNi1, CuNi15, CuNi30
Shanghai Tankii Alloy Material Co., Ltd. is the most professional producer of constantan, copper nickel alloys in wire, strip, foil, sheet and rod.
If there is any question or requirement, pls be free to contact with us.
| Chemical Composition and Main Property of Cu-Ni Low Resistance Alloy | |||||||
| Properties\Grade | CuNi1 | CuNi2 | CuNi6 | CuNi8 | CuMn3 | CuNi10 | |
| Main Chemical Composition | Ni | 1 | 2 | 6 | 8 | _ | 10 |
| Mn | _ | _ | _ | _ | 3 | _ | |
| Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
| Max Continuous Service Temperature(oC) | 200 | 200 | 200 | 250 | 200 | 250 | |
| Resisivity at 20oC (Ωmm2/m) | 0.03 | 0.05 | 0.10 | 0.12 | 0.12 | 0.15 | |
| Density(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.9 | |
| Thermal Conductivity(α×10-6/oC) | <100 | <120 | <60 | <57 | <38 | <50 | |
| Tensile Strength(Mpa) | ≥210 | ≥220 | ≥250 | ≥270 | ≥290 | ≥290 | |
| EMF vs Cu(μV/oC)(0~100oC) | -8 | -12 | -12 | -22 | _ | -25 | |
| Approximate Melting Point( oC) | 1085 | 1090 | 1095 | 1097 | 1050 | 1100 | |
| Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | |
| Magnetic Property | non | non | non | non | non | non | |
| | |||||||
| Properties\Grade | CuNi14 | CuNi19 | CuNi23 | CuNi30 | CuNi34 | CuNi44 | |
| Main Chemical Composition | Ni | 14 | 19 | 23 | 30 | 34 | 44 |
| Mn | 0.3 | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 | |
| Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
| Max Continuous Service Temperature(oC) | 300 | 300 | 300 | 350 | 350 | 400 | |
| Resisivity at 20oC (Ωmm2/m) | 0.20 | 0.25 | 0.30 | 0.35 | 0.40 | 0.49 | |
| Density(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
| Thermal Conductivity(α×10-6/oC) | <30 | <25 | <16 | <10 | <0 | <-6 | |
| Tensile Strength(Mpa) | ≥310 | ≥340 | ≥350 | ≥400 | ≥400 | ≥420 | |
| EMF vs Cu(μV/oC)(0~100oC) | -28 | -32 | -34 | -37 | -39 | -43 | |
| Approximate Melting Point( oC) | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 | |
| Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | |
| Magnetic Property | non | non | non | non | non | non | |
| Packing: | Coil, Waterproof Paper, Pallet |
|---|---|
| Model: | Constantan |
| Standard: | thickness 0.05mm-3mm, Width 10mm-100mm |
| Productivity: | 30 tons/month |
| HS Code: | 74082200 |
| Trademark: | TANKII |
| Origin: | China |
| Min. Order: | 50 KG |
| Transportation: | by air or by sea |
