Our Cr20Ni30 Nichrome bar, crafted with 30% nickel and 20% chromium, is a high-performance alloy designed for reliable high-heat kiln support structures. This bar offers excellent corrosion resistance, stability at temperatures up to 1000°C (1832°F), and robust durability. Its balanced electrical resistivity ensures consistent performance in extreme heat, making it ideal for demanding kiln applications. We manufacture Cr20Ni30 bars with precision, delivering uniform composition, high tensile strength, and top-quality performance to meet the rigorous needs of industrial kiln systems.
Industry Analysis
The industrial kiln market is growing steadily, driven by demand in ceramics, glass, and cement production. Market data projects a CAGR of over 4.6% through 2030, fueled by the need for durable, high-temperature materials that can withstand harsh conditions. Energy efficiency and longevity are top priorities, and our Cr20Ni30 bar delivers with its reliable performance and low maintenance requirements. As industries focus on sustainable solutions to reduce operational costs, our bar is a key component for keeping kilns running efficiently 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 Cr20Ni30 bar is a cornerstone for kiln support structures but versatile enough for other uses:
Kiln Support Structures: Provides durable, high-heat support for ceramic and glass kilns.
Furnace Components: Powers reliable heating systems in industrial furnaces.
Heat Treatment Systems: Supports consistent heating for metal and material processing.
Industrial Ovens: Ensures stable performance for high-temperature drying and curing.
Specialty Applications: Used in laboratory kilns and advanced manufacturing processes.
Comparison with Other Materials
Here’s how Cr20Ni30 Nichrome bar compares to other common materials:
Parameter | Cr20Ni30 Nichrome | FeCrAl (Kanthal) | Copper | Stainless Steel |
|---|---|---|---|---|
Max Operating Temp (°C) | 1000 | 1400 | 200 | 800 |
Electrical Resistivity (μΩ·m) | 1.02-1.08 | 1.35-1.45 | 0.017 | 0.7-0.8 |
Corrosion Resistance | Excellent | Good | Poor | Moderate |
Tensile Strength (MPa) | 600-750 | 600-700 | 200-400 | 500-700 |
Oxidation Resistance | High | High | Low | Moderate |
Density (g/cm³) | 7.9 | 7.1 | 8.9 | 7.8 |
Cost Efficiency | High | Moderate | High | Moderate |
Kiln Suitability | Excellent | Good | Limited | Moderate |
Cr20Ni30’s excellent corrosion resistance and balanced resistivity make it ideal for kiln support structures, outperforming copper in high-temperature environments and offering better durability than stainless steel. While FeCrAl can handle higher temperatures, our bar’s reliability and efficiency make it a top choice for kiln applications.
Our Company’s Edge
Our Cr20Ni30 Nichrome bar is engineered for durability and performance. We use high-purity nickel and chromium, ensuring every bar meets strict industry standards. Our advanced manufacturing delivers uniform composition and consistent quality, reducing downtime and maintenance costs for your kilns. Sustainability is a core focus—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 Cr20Ni30 Nichrome bar ideal for kiln support structures?
Its excellent corrosion resistance and ability to handle 1000°C ensure reliable performance in high-heat environments.How does Cr20Ni30 compare to other Nichrome alloys?
With 30% nickel, it offers a great balance of resistivity and durability for kiln applications.Can Cr20Ni30 be used beyond kilns?
Yes, it’s versatile for furnaces, heat treatment systems, and specialty manufacturing processes.How does your Cr20Ni30 ensure reliability?
High-purity materials and precise manufacturing deliver consistent, durable performance.What’s the max temperature Cr20Ni30 can handle?
It performs reliably up to 1000°C (1832°F) without oxidizing or degrading.Is Cr20Ni30 eco-friendly?
Its low resistivity reduces energy use, supporting sustainable kiln operations.Do you offer custom Cr20Ni30 bar solutions?
We provide tailored dimensions and properties to meet your specific project needs.Why choose your Cr20Ni30 bar?
Our focus on quality, customization, and fast delivery ensures top performance for your kiln needs.