NiCr Alloy
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Nickel-Chrome Alloy
NiCr Alloy Wire
Rod 8-50
Flat Wire (0.05-0.35)*(0.5-6.0)
Strip/Foil (0.5-2.5)*(5-40)
Standard Compliant
Our production adheres to JIS G4313 standards, ensuring compliance with international quality benchmarks.
Equivalent overseas standards are listed for reference.
- ISO 6208, 15156
- ASTM B163, B166, B167, B168, B446
- DIN 17742, 17750
- AMS 5540, 5666
- GB/T 1234, 2077, 4437
Chemical Composition
| Grades | |||||||
| Main Chemical Composition (%) | Nickel (Ni) | 90 | Rest | Rest | 55.0-61.0 | 34.0-37.0 | 30.0-34.0 |
| Chromium (Cr) | 10 | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | 18.0-21.0 | |
| Iron (Fe) | -- | ≤1.0 | ≤1.0 | Rest | Rest | Rest | |
Physical & Mechanical Properties
| Grades | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
| Max. Service Temperature (°C) | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Melting Point (°C) | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Density (g/cm³) | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistivity at 20℃ (μΩ·m) | -- | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
| Elongation at Rupture (%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Specific Heat (J/g.℃) | -- | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
| Thermal Conductivity (KJ/m.h.ºC) | -- | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| Coefficient of Lines Expansion (α×10⁻⁶/20~1000ºC) | -- | 18 | 17 | 17 | 19 | 19 |
| Micrographic Structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic Properties | -- | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic |
Features
- Maintains mechanical stability at high temperatures between 1100°C - 1200°C, preventing deformation and structural degradation
- Forms a protective chromium oxide layer, preventing oxidation and surface degradation, making it ideal for extreme environments
- Provides high electrical resistance, making it suitable for electrical heating elements and resistance wires
- Ideal for applications where magnetic interference must be minimized, ensuring reliable performance in electronics and aerospace applications
- Remains ductile and easy to process, even after prolonged high-temperature exposure
- Withstands frequent temperature fluctuations, making it ideal for industrial heating systems and automotive exhaust applications
- Due to its high durability and minimal permanent elongation, NiCr alloy components retain their structural integrity over extended use providing longer service life
Applications
- Industrial & domestic heating systems: Used as heating elements in industrial and residential electric furnaces, including electric resistance wires and heating coils
- Aerospace components: Applied in aircraft engine parts and aerospace structural components requiring high-temperature durability
- Chemical & petrochemical processing: Resistant to corrosive environments, making it ideal for reactor vessels, pipelines, and processing equipment
- Electronics & electrical engineering: Commonly used in resistors, sensors, and other precision electronic components
- Automotive industry: Essential for turbochargers, exhaust systems, and other high-temperature components
- Medical equipment: Utilized in dental prosthetics (e.g., porcelain-fused-to-metal crowns) and orthopedic implants due to its biocompatibility and durability
- Nuclear engineering: Critical for nuclear power plant components exposed to extreme radiation and high temperatures
Packaging