Our Cr30Ni70 Nichrome bar, made with 70% nickel and 30% chromium, is a high-performance alloy built for the harsh demands of chemical processing equipment. This bar offers top-notch corrosion resistance, stability at temperatures up to 1150°C (2100°F), and exceptional durability. Its balanced electrical resistivity ensures reliable heating, making it ideal for tough industrial environments. We manufacture Cr30Ni70 bars with precision, delivering uniform composition, high tensile strength, and consistent quality to meet the stringent standards of the chemical processing industry.
Industry Analysis
The chemical processing industry is growing steadily, driven by demand in pharmaceuticals, petrochemicals, and specialty chemicals. Market data projects a CAGR of over 4.8% through 2030, fueled by the need for durable, corrosion-resistant materials that can handle aggressive chemicals and high temperatures. Energy efficiency and sustainability are key trends, and our Cr30Ni70 bar delivers with its low power consumption and long-lasting performance. As the industry pushes for equipment that reduces downtime and maintenance costs, our bar is a critical component for staying competitive.
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 | |
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Our Cr30Ni70 bar is a workhorse for chemical processing but versatile enough for other uses:
Chemical Reactors: Provides reliable heating for reactors and distillation units in corrosive environments.
Industrial Furnaces: Powers high-temperature furnaces with consistent, durable performance.
Thermocouples: Ensures stable resistance for accurate temperature sensing in chemical systems.
Electrical Components: Supports resistors and circuit protection in processing equipment.
Specialty Applications: Used in advanced manufacturing processes like chemical vapor deposition.
Comparison with Other Materials
Here’s how Cr30Ni70 Nichrome bar compares to other common materials:
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) |
Parameter | Cr30Ni70 Nichrome | FeCrAl (Kanthal) | Copper | Stainless Steel |
|---|---|---|---|---|
Max Operating Temp (°C) | 1150 | 1400 | 200 | 800 |
Electrical Resistivity (μΩ·m) | 1.18-1.25 | 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) | 8.1 | 7.1 | 8.9 | 7.8 |
Cost Efficiency | High | Moderate | High | Moderate |
Chemical Processing Suitability | Excellent | Good | Limited | Moderate |
Cr30Ni70’s superior corrosion resistance and balanced resistivity make it a top choice for chemical processing, outperforming copper in harsh environments and offering better durability than stainless steel. While FeCrAl can handle slightly higher temperatures, our bar’s reliability and efficiency make it ideal for chemical applications.
Our Company’s Edge
Our Cr30Ni70 Nichrome bar is engineered for performance and longevity. We use high-purity nickel and chromium, ensuring every bar meets the chemical industry’s rigorous standards. Our advanced manufacturing delivers uniform composition and consistent quality, minimizing downtime and maintenance costs. Sustainability is a priority—our bar’s energy-efficient design reduces 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 running smoothly.
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 Cr30Ni70 Nichrome bar ideal for chemical processing?
Its excellent corrosion resistance and ability to handle 1150°C ensure reliable performance in harsh environments.How does Cr30Ni70 compare to other Nichrome alloys?
With 30% chromium, it offers superior corrosion resistance for chemical processing applications.Can Cr30Ni70 be used beyond chemical processing?
Yes, it’s versatile for furnaces, thermocouples, and specialty manufacturing processes.How does your Cr30Ni70 ensure durability?
High-purity materials and precise manufacturing deliver consistent, long-lasting performance.What’s the max temperature Cr30Ni70 can handle?
It performs reliably up to 1150°C (2100°F) without oxidizing or degrading.Is Cr30Ni70 eco-friendly?
Its low resistivity reduces energy use, supporting sustainable chemical processing.Do you offer custom Cr30Ni70 bar solutions?
We provide tailored dimensions and properties to meet your specific project needs.Why choose your Cr30Ni70 bar?
Our focus on quality, customization, and fast delivery ensures top performance for your chemical equipment.