Our Cr20Ni80 Nichrome bar, crafted with 80% nickel and 20% chromium, is a top-tier alloy designed for industrial heat treatment systems. This bar delivers exceptional corrosion resistance, high-temperature stability up to 1200°C (2200°F), and outstanding durability. Its balanced electrical resistivity ensures consistent, efficient heating, making it perfect for demanding heat treatment applications. We manufacture Cr20Ni80 bars with precision, ensuring uniform composition, high tensile strength, and reliable quality to meet the rigorous standards of industrial manufacturing.
Industry Analysis
The industrial heat treatment market is thriving, driven by growth in aerospace, automotive, and metalworking industries. Market data projects a CAGR of over 5.4% through 2030, fueled by demand for durable, high-performance materials that can handle extreme temperatures. Energy efficiency and sustainability are key trends, and our Cr20Ni80 bar delivers with its low power consumption and long-lasting performance. As manufacturers aim to reduce downtime and maintenance costs, our bar is a critical component for keeping heat treatment systems running smoothly in competitive markets.
Performance / material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Composition | 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 | |
Maximum temperature℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
Meltiing point ℃ | 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℃) | -- | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Coefficient of lines expansion a×10-6/(20~1000℃) | -- | 18 | 17 | 17 | 19 | 19 | |
Micrographic structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite | |
Magnetic properties | -- | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic | |
Shape | Size (mm) |
Wire | 0.05-7.5 |
Rod | 8-50 |
Ribbon | (0.05-0.35)*(0.5-6.0) |
Strip | (0.5-2.5)*(5-40) |
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Our Cr20Ni80 bar is a powerhouse for heat treatment systems but versatile enough for other uses:
Heat Treatment Furnaces: Provides reliable, high-temperature heating for metal hardening and tempering.
Industrial Kilns: Powers consistent heating for ceramics and material processing.
Annealing Systems: Ensures stable performance for stress-relief and softening processes.
Electrical Components: Supports resistors and circuit protection in heat treatment equipment.
Specialty Applications: Used in laboratory furnaces and advanced manufacturing processes.
Comparison with Other Materials
Here’s how Cr20Ni80 Nichrome bar compares to other common materials:
Parameter | Cr20Ni80 Nichrome | FeCrAl (Kanthal) | Copper | Stainless Steel |
|---|---|---|---|---|
Max Operating Temp (°C) | 1200 | 1400 | 200 | 800 |
Electrical Resistivity (μΩ·m) | 1.09-1.15 | 1.35-1.45 | 0.017 | 0.7-0.8 |
Corrosion Resistance | Excellent | Good | Poor | Moderate |
Tensile Strength (MPa) | 650-800 | 600-700 | 200-400 | 500-700 |
Oxidation Resistance | High (Cr oxide layer) | High | Low | Moderate |
Density (g/cm³) | 8.4 | 7.1 | 8.9 | 7.8 |
Cost Efficiency | High | Moderate | High | Moderate |
Heat Treatment Suitability | Excellent | Good | Limited | Moderate |
Cr20Ni80’s excellent corrosion resistance and balanced resistivity make it ideal for heat treatment systems, outperforming copper in high-temperature environments and offering better durability than stainless steel. While FeCrAl can handle slightly higher temperatures, our bar’s efficiency and reliability make it a top choice for heat treatment applications.
Our Company’s Edge
Our Cr20Ni80 Nichrome bar is engineered for performance and longevity. We use high-purity nickel and chromium, ensuring every bar meets stringent industry standards. Our advanced manufacturing delivers uniform composition and consistent quality, reducing downtime and maintenance costs for your heat treatment systems. Sustainability is a priority—our bar’s energy-efficient design minimizes power consumption, aligning with eco-friendly trends. With decades of expertise, we offer customized solutions, tailoring bar dimensions and properties to your needs. Our global supply chain ensures fast delivery, keeping your operations on track.
About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQs
Why is Cr20Ni80 Nichrome bar ideal for heat treatment systems?
Its high corrosion resistance and ability to handle 1200°C ensure reliable performance in extreme heat.How does Cr20Ni80 compare to other Nichrome alloys?
With 80% nickel, it offers a great balance of resistivity and durability for heat treatment applications.Can Cr20Ni80 be used beyond heat treatment systems?
Yes, it’s versatile for kilns, electrical components, and specialty manufacturing processes.How does your Cr20Ni80 ensure reliability?
High-purity materials and precise manufacturing deliver consistent, durable performance.What’s the max temperature Cr20Ni80 can handle?
It performs reliably up to 1200°C (2200°F) without oxidizing or degrading.Is Cr20Ni80 eco-friendly?
Its low resistivity reduces energy use, supporting sustainable heat treatment operations.Do you offer custom Cr20Ni80 bar solutions?
We provide tailored dimensions and properties to meet your specific project needs.Why choose your Cr20Ni80 bar?
Our focus on quality, customization, and fast delivery ensures top performance for your heat treatment needs.