Electric Heating Constantan Wire / Copper Constantan Thermocouple CE and ROHS
Brand Name:TANKII
Certification:ISO9001
Model Number:CuNi44
Minimum Order Quantity:10kg
Delivery Time:7-10 days
Payment Terms:L/C, T/T, Western Union
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Location:
Shanghai Shanghai China
Address:
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
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Product Details
Electric Heating Constantan Wire / Copper Constantan Thermocouple CE and ROHS
Description:
Constantan Wire with moderate resistivity and low temperature coefficent of resistance with a flat resistance/temperature curve over a wider range than the "manganins". Constantan also shows better corrosion resistance than the man ganins. Uses tend to be restricted to ac circuits.
Constantan wire is also the negative element of the type J
thermocouple with Iron being the positive; type J thermocouples are
used in heat treating applications. Also, it is the negative
element of the type T thermocouple with OFHC Copper the positive;
type T thermocouples are used at cryogenic temperatures.
Chemical Content, %
Ni | Mn | Fe | Si | Cu | Other | ROHS Directive | |||
Cd | Pb | Hg | Cr | ||||||
44 | 1.50% | 0.5 | - | Bal | - | ND | ND | ND | |
Mechanical Properties
| Max Continuous Service Temp | 400ºC |
Resisivity at 20ºC | 0.49±5%ohm mm2/m |
Density | 8.9 g/cm3 |
Thermal Conductivity | -6(Max) |
Melting Point | 1280ºC |
Tensile Strength,N/mm2 Annealed,Soft | 340~535 Mpa |
Tensile Strength,N/mm3 Cold Rolled | 680~1070 Mpa |
Elongation(anneal) | 25%(Min) |
Elongation(cold rolled) | ≥Min)2%(Min) |
EMF vs Cu, μV/ºC (0~100ºC) | -43 |
Micrographic Structure | austenite |
Magnetic Property | Non |
Products and services
1. CE and ROHS cerfication;
2. Small orders are accepted;
3. Factory direct sale;
4. Timely delivery;
5. Samples are available;
Features
1. Good resistance to corrosion;
2. Good malleability performance;
3. Good heating resistance;
4. Easy to be processed and lead welded;
5. Constant resistivity over a wide range of temperatures;
6. constantan is characterized by good fatigue life and relatively
high elongation capability .
Applications
It is suilable for electrical resistors, potentiometers, heating
wires, heating cables and underground heating mesh; braiding and
shielding in flexible coaxial cable and communication cable, a
variety of audio and video cable, vehicle signal cable, network
cable, data transmission cables ang so on.
Size
Wire: 0.018mm-10mm
Ribbon: 0.05*0.2mm-2.0*6.0mm
Strip: 0.5*5.0mm-5.0*250mm
Bar: 10-100mm
When you inquiry, pls specify the details
1. Material and model of wire
2. Diameter, if strip, thickness and width;
3. Quantity;
4. Special requirement if you have.
| Chemical Composition and Main Property of Cu-Ni Low Resistance Alloy | |||||||
| PropertiesGrade | 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 (Ω*mm²/m) | 0.03 | 0.05 | 0.1 | 0.12 | 0.12 | 0.15 | |
| Density(g/cm³) | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.9 | |
| Thermal Conductivity(α×10-6ºC) | <100 | <120 | <60 | <57 | <38 | <50 | |
| Tensile Strength(Mpa) | ≥210 | ≥220 | ≥250 | ≥270 | ≥290 | ≥290 | |
| EMF vs Cu(μVºC)(0~1000ºC) | -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 | |
| PropertiesGrade | CuNi14 | CuNi19 | CuNi23 | CuNi30 | CuNi34 | CuNi44 | |
| Main Chemical Composition | Ni | 14 | 19 | 23 | 30 | 34 | 44 |
| Mn | 0.3 | 0.5 | 0.5 | 1 | 1 | 1 | |
| Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
| Max Continuous Service TemperatureºC) | 300 | 300 | 300 | 350 | 350 | 400 | |
| Resisivity at 20ºC (Ω*mm²/m) | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | 0.49 | |
| Density(g/cm³) | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
| Thermal Conductivity(α×10-6ºC) | <30 | <25 | <16 | <10 | <0 | <-6 | |
| Tensile Strength(Mpa) | ≥310 | ≥340 | ≥350 | ≥400 | ≥400 | ≥420 | |
| EMF vs Cu(μVºC)(0~1000ºC) | -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 | |
Please kindly contact us if you have any inquiry
Electric Heating Constantan Wire / Copper Constantan Thermocouple CE and ROHS
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