- Fe-Cr-Al Alloys
- Nickel-chromium Alloys
- Cn/Mn-Cu Alloys
- Cu-Ni Alloys
- Precision Alloys
- Ni-Al Alloys
- Pure Nickel Alloys
- Monel Alloys
- Hastelloy Alloys
- Inconel Alloys
- Incoloy Alloys
- Haynes Alloys
Nickel-chromium Alloys Flat Strip Cr20Ni80
Overview
Cr20Ni80 Nickel-Chromium Alloy Strip is a high-performance material with 80% nickel and 20% chromium, engineered for extreme high-temperature and high-resistivity applications. It offers outstanding oxidation resistance, corrosion resistance, and thermal stability, widely used in industrial furnaces, household heating elements, and aerospace systems. Customizable thickness (0.05-10mm) and width (5-1200mm) for global industrial demands.
Limiting Chemical Composition, %
Chromium(Cr)..................................................................................................................................20.0
Aluminum(Ni)..................................................................................................................................80.0
Balance Iron (Fe) & Trace Elements
Main Properties
| Alloy Nomenclature → | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | Cr25Ni20 | |
| Performance ↓ | |||||||
| Main chemical composition | Ni | Rest | Rest | 55-61 | 34-37 | 30-34 | 19-22 |
| Cr | 20-23 | 28-31 | 15-18 | 18-21 | 18-21 | 23-27 | |
| Fe | ≤1.0 | ≤1.0 | Rest | Rest | Rest | Rest | |
| Max.Continuous service temp.of element(℃) |
1200 | 1250 | 1150 | 1100 | 1100 | 950 | |
| (Ω·mm²/m) Resistivity at20℃ |
1.09 | 1.18 | 1.12 | 1.04 | 1.04 | 0.96 | Density(g/cm³) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | 8 |
Material Characteristics
Density |
about 8.4g/cm³ |
Resistivity |
1.30 μΩ·m (20°C) |
Temperature Range |
-50°C ~ 1250°C |
Temperature Range |
Continuous Service ≤1200°C, Short-Term Peak ≤1300°C (≤24小时) |
Material Properties
● Extreme High-Temperature Stability:
Continuous service up to 1250°C with a dense Cr₂O₃ protective layer.
● High Resistivity:
Stable resistivity (1.30 μΩ·m) for efficient energy conversion.
● Corrosion Resistance:
Resists acids, alkalis, sulfides, and chlorides in harsh conditions.
Core Advantages
● Extended Lifespan:
Resists creep and oxidation at high temperatures, reducing maintenance costs.
● Ease of Processing:
Compatible with stamping, welding, and coiling for precision manufacturing.
● Energy Efficiency:
Minimizes energy waste with high resistivity, meeting eco-friendly standards.
Typical Applications
● Industrial Heating
Resistance furnace wires, induction heating coils, smelting furnace strips.
● Household Appliances
Oven heating tubes, water heater elements, hair dryer resistance wires.
● Specialized Fields
Aerospace engine components, semiconductor tools, high-temperature lab equipment.
Technical Specifications
| Parameter | Numeric | Unit |
|---|---|---|
| Melting Point | 1400-1420 | ℃ |
| Tensile Strength | ≥600 | MPa |
| Elongation | ≥25 | % |
| Surface Finish | Bright / Annealed / Matte) | - |
| Thickness Range | 0.05-10.0 | mm |
| Width Range | 5-1200 | mm |
Applicable Industries
● Industrial Heating Equipment Manufacturing
● Household Appliances & Consumer Electronics
● Aerospace & Defense
● Semiconductor & Renewable Energy
Packaging & Certifications
● Packaging:
Moisture-proof vacuum sealing + shock-absorbing foam in custom crates.
● Certifications:
ISO 9001, RoHS, ASTM B344, MIL-SPEC compliant.
Why Choose Cr20Ni80?
● Industry Benchmark:
Globally trusted for decades in critical heating applications.
● Flexible Supply:
Scalable from prototypes to mass production with fast delivery.
● End-to-End Support:
Material testing, processing guidelines, and post-sale consulting.
Available Forms
We provide you with a variety of product forms, including but not limited to
● Strip & Foil
● Round Wire &Flat Wire
● Bar & Rod
● Electrothermal Strip
● Flange & Ring
● Wire & Welding
● Reststance Wire
● Electric Alloy Wire
● Electric Furnace Bar
● Customize
description2

1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
CuNi30
CuNi34
CuNi44
CuNi30
CuNi34
CuNi44
CuNi30
CuNi34
CuNi44
CuNi30
CuNi34
CuNi44
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
6J525(6J28)
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
6J525(6J28)
Ni95Al5
monel 400
monel R405
monel K500
monel 502
monel 400
monel R405
monel K500
monel 502
monel R405
monel K500
monel 502
Hastelloy C-22
Hastelloy C-22
Hastelloy C-22
Inconel 800
Inconel 800H
Inconel 800HT
Inconel 825
Inconel 800
Inconel 800H
Inconel 800HT
Inconel 825
Inconel 800
Inconel 800H
Inconel 800HT
Inconel 825
Strip & Foil
Round Wire
Bar & Rod
Electrothermal strip
Bolts & Fasteners
Flange & Ring
Wire & Welding
Reststance wire & flat wire
Electric alloy wire
Electric furnace wire