Introduction:
NiCr alloy wire exhibits excellent high-temperature stability due
to its high melting point, oxidation resistance, matching thermal
expansion coefficient, crystal phase stability, and ratio of nickel
and chromium.
This makes it the material of choice for many high temperature
applications such as heat treatment equipment, high temperature
heating elements and aerospace.
1. High melting point: NiCr alloy wire has a relatively high
melting point, usually between 1200°C and 1400°C, which allows it
to maintain stable structure and performance in high-temperature
environments.
2. Anti-oxidation performance: NiCr alloy wire forms a dense oxide
surface layer in a high-temperature oxidizing environment. This
oxide layer can effectively prevent the erosion of oxygen and other
oxidants and provide protection. This anti-oxidation property
allows NiCr alloy wire to be used at high temperatures for a long
time without significant oxidation and corrosion.
3. Thermal expansion coefficient matching: The thermal expansion
coefficient of NiCr alloy wire matches that of many common
structural materials (such as steel). This means that under high
temperature conditions, the difference in thermal expansion between
the NiCr alloy wire and the surrounding materials is smaller,
reducing the accumulation of thermal stress and improving the
durability and life of the material.
4. Crystalline phase stability: The crystalline phase in NiCr alloy
has high thermal stability, that is, it is not prone to phase
change or precipitation at high temperatures. This ensures the
structural stability and performance consistency of NiCr alloy wire
under high temperature conditions.
5. The ratio of nickel and chromium: The ratio of nickel and
chromium in NiCr alloy wire plays an important role in its high
temperature stability. Generally speaking, high nickel content
improves the high-temperature stability and oxidation resistance of
the alloy, while high chromium content provides better corrosion
resistance.
Technical Parameters:
| Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
| Composición | Ni | 90 | Rest | Rest | 55.0～61.0 | 34.0～37.0 | 30.0～34.0 |
| Cr | 10 | 20.0～23.0 | 28.0～31.0 | 15.0～18.0 | 18.0～21.0 | 18.0～21.0 |
| Fe | － | ≤1.0 | ≤1.0 | Rest | Rest | Rest |
| Temperatura máxima℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Punto de fusion ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Densidad g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistividad μΩ·m,20℃ | 0.76±0.05 | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
| Alargamiento a la ruptura | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Calor especifico J/g.℃ | － | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
| Conductividad térmica KJ/m.h℃ | － | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| Coeficiente de expansión de líneas a×10-6/(20～1000℃) | － | 18 | 17 | 17 | 19 | 19 |
| Estructura micrográfica | － | Austenite | Austenite | Austenite | Austenite | Austenite |
| Propiedades magnéticas | － | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic |
| Form | Specification |
| Wire | Diameter=0.025mm~8mm |
| Flat wire | Width=0.40~6.0mm | Thick=0.03~0.50mm |
| Strip | width=8~250mm | Thick=0.05~3.0mm |
| Bar | Diameter=8~100mm | Long=50~1000 |
Service:
Safety is our utmost priority when it comes to our NiCr alloy
heaters. We have implemented multiple safety measures, including
overload protection and overheating protection, to ensure the safe
and reliable operation of our heaters. You can have peace of mind
knowing that our products prioritize your safety and provide a
secure heating solution.
contact us
email:victory@dlx-alloy.com
Oem service:
Welcome customized size
We are experience factory for OEM&ODM service
Size dimension range:
Wire: 0.01-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
NiCr series: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30
Packing and Shipping:
Sturdy cardboard boxes are used for packaging NiCr Alloy.
Each box has dimensions of approximately 26 cm (length) x 26 cm
(width) x 30 cm (height).
The shipping method for NiCr Alloy depends on the customer's
requirements.
FAQ :
What are the typical mechanical properties of NiCr Alloy?
The mechanical properties of NiCr Alloy can vary depending on the
specific composition and heat treatment. Generally, it exhibits
high strength, good ductility, and excellent creep resistance at
elevated temperatures.
What is the cost of NiCr alloy?
The cost of NiCr alloys is generally lower and more economical than
other high-temperature alloys (such as tungsten-molybdenum alloys).
This makes NiCr alloys a popular choice in many applications.
Do you provide technical support for Cr10Ni90 alloy wire?
Yes, we provide technical support for Cr10Ni90 alloy wire,
including selection suggestions, application guidance, etc.
