OD 0.85mm PP Insulated CuNi44/ constantan heating cable for heating
machine
Constantan(OhmAlloy049.pdf)
Ohmalloy049 is a copper-nickel alloy (Cu56Ni44 alloy),
characterized in that high resistance, high degree of deputivity,
and good corrosion resistance. It is suitable for typical
applications of Ohmalloy49 at temperatures up to 400 ° C, which is
a temperature stable potentiometer, industrial varistor and motor
starter resistance.
A combination of negligible temperature coefficients and high
resistance makes a alloy split of a winding of a precision
resistor.
Ohmalloy049 is manufactured from electrolytic copper and pure
nickel. In a thinner wire size, the alloy is designated as
Ohmalloy49TC (thermocouple).
Normal composition%
| Nickel | 45 | Manganese | 1 |
| Copper | Bal. | | |
Typical Mechanical properties (1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 250 | 420 | 25 |
Typical Physical properties
| Density (g/cm3) | 8.9 |
| Electrical resistivity at 20℃ (Ωmm2/m) | 0.49 |
| Temperature factor of resistivity(20℃~600℃)X10-5/℃ | -6 |
| Conductivity coefficient at 20℃ (WmK) | 23 |
| EMF vs Cu(μV/℃ )(0~100℃ ) | -43 |
| Coefficient of thermal expansion |
| Temperature | Thermal Expansion x10-6/K |
| 20 ℃- 400℃ | 15 |
| Specific heat capacity |
| Temperature | 20℃ |
| J/gK | 0.41 |
| Melting point (℃) | 1280 |
| Max continuous operating temperature in air (℃) | 400 |
| Magnetic properties | non-magnetic |
Alloys |
Working In atmosphere at 20℃ | Working at max temperature 200℃ |
Air and oxygen contain gases | gases with Nitrogen | gases with sulfur oxidability | gases with sulfur reductibility | carburization |
| OhmAlloy049 | good | good | good | good | bad | good |
FAQ
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you
want.
If we do not have, for spool wire, we can produce 1 spool, about
2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have account, wire transfer for sample amount also ok.
3. Customer do not have express account. How will us arrange the
delivery for sample order?
Just need to provide your address information, we will check the
express cost, you can arrange the express cost together with sample
value.
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery
and total amount. Let's talk more in details after getting your
detailed requirements.
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can
provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool
within 24 hours. No matter working day or holidays.
