Cr20Ni35 The Top Nickel-Chromium-Iron Alloy for Extreme Conditions and Harsh Chemical Environments

Cr20Ni35 The Top Nickel-Chromium-Iron Alloy for Extreme Conditions and Harsh Chemical Environments

Cr20Ni35 is a high-performance austenitic steel alloy composed of 20% chromium and 35% nickel, designed for applications that demand superior resistance to high temperatures, oxidation, and corrosion. The alloy's high chromium content provides exceptional oxidation resistance, while the high nickel content enhances its toughness, ductility, and resistance to stress-corrosion cracking. These properties make Cr20Ni35 ideal for high-temperature environments such as furnaces, heat exchangers, and chemical reactors.

With an austenitic structure, Cr20Ni35 remains non-magnetic and exhibits excellent weldability and formability, allowing it to be used in a variety of complex, welded applications. The alloy also maintains its mechanical strength and corrosion resistance in both acidic and alkaline conditions, making it suitable for use in harsh chemical environments. Additionally, it is resistant to thermal cycling and maintains good performance even under dynamic or cyclic loads.

Cr20Ni35's combination of high-temperature resistance, corrosion resistance, and good mechanical properties makes it widely used in industries such as power generation, aerospace, and chemical processing, particularly in components exposed to extreme conditions. Its ability to withstand both high temperatures and corrosive environments makes it an ideal material for long-term, high-performance applications.

Main characteristics of Ni-Cr and Ni-Cr-Fe electric heating alloys

Some key features of Cr20Ni35 include:

Composition‌:

• ‌Chromium Content‌: Contains 20% chromium.
• ‌Nickel Content‌: Contains 35% nickel.

‌High Temperature Resistance‌:

• Capable of withstanding high temperatures without significant degradation in performance.
• Suitable for applications requiring resistance to thermal stress and creep.

‌Corrosion Resistance‌:

• Exhibits excellent resistance to corrosion in various environments.
• Suitable for use in corrosive media.

‌Mechanical Properties‌:

• Offers good mechanical strength and ductility.
• Can be easily formed and machined into various shapes and sizes.

‌Electrical Conductivity‌:

• Has moderate electrical conductivity, making it suitable for electrical applications.
• Can be used in components requiring a combination of electrical and mechanical properties.

‌Summary‌: Cr20Ni35 is a versatile alloy known for its high temperature resistance, corrosion resistance, good mechanical properties, and moderate electrical conductivity.

Applications:

1. Electric Heating Elements: Cr20Ni35 is used in the manufacturing of industrial electric furnaces, electric ovens, and heaters due to its high electrical resistivity and stability at high temperatures

2. Heating Equipment: The alloy serves as a heating material in industrial heating equipment, demonstrating good stability and durability

3. Precision Resistors: Known for its high resistance stability and low temperature coefficient, Cr20Ni35 is suitable for the production of precision resistors, especially in high-precision measuring instruments

4. Industrial Furnaces and Muffles: Cr20Ni35 is utilized in industrial heating, furnaces, muffles, retorts, and conveyor systems, as well as heat treating baskets and fixtures, where it exhibits excellent strength at high temperatures and resistance to oxidation and reduction environments

5. High-Quality Resistance Boxes: The alloy is used in the manufacturing of resistance tape for high-quality resistance boxes

These applications highlight the versatility and importance of Cr20Ni35 in industries where high-temperature resistance, stability, and reliability are critical.

Technical data of wires

The tolerance or wires diameter

Technical data of ribbon

Company Overview:

Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and preci.sion of our products. We have the tightest tolerances and deliver within a few days to a fewweeks. As a result, we have become the leading alloy wire supplier in the industry.

Senphus Subsidiaries:

• Jiangyin Chengxin Alloy Material Co., Ltd.
• Jiangyin Senphus Electrical Materials Co., Ltd.
• Jiangsu Xiangcheng Supply Chain Management Co., Ltd.

Jiangyin Chengxin Alloy Material Co., Ltd.: With nearly 20 years of experience, Jiangyin Chengxin is a leading alloy wire manufacturer in China. We offer a wide range of services, from fine wire drawing to resistance wire manufacturing. Our specialty lies in the quality and precision of our products, achieving the tightest tolerances and delivering orders within days to weeks. As a result, we have established ourselves as the premier supplier of alloy wire in the industry.

Our product range includes:

• Copper-nickel alloys (CuNi1-CuNi44)
• Karma (Nikrothal L/Evanohm/Alloy 800)
• Manganin and Constantan
• Nickel-chromium alloys
• Thermocouple alloys (Type K, N, E, T, J)
• Thermocouple extension wire
• PTC thermistor resistance alloy
• Pure nickel wire and Monel alloy

These alloys are available in various forms, including wire, ribbon, stranded, and enamelled. Major applications include seat heating, underfloor heating, military projects, aerospace, household appliances, heating wire, mechanical and electrical plants, and temperature instruments. Our manufacturing processes are ISO 9001:2015 certified, and we specialize in fine and ultra-fine wire drawing, offering wire diameters from 0.025 mm (0.001") to 13 mm (0.51") in small batches, medium volumes, and mass production. We maintain a comprehensive quality inspection system, including in-house chemical analysis, chromatographic analysis, metallurgical analysis, pinhole tests, wire construction tests, and tension tests to ensure the highest quality standards.

Senphus Electrical Material Co., Ltd.: Founded in 2003, Senphus Electrical Material Co., Ltd. integrates research, manufacturing, and sales of electric heating alloys, heating cables, heating wires, and heating products. Leveraging over a decade of technical expertise in heating alloy wire, we have adopted advanced heating cable technology and machinery, successfully developing heating cables, temperature controllers, and temperature control systems suitable for building heating, pipe insulation, outdoor snow melting, wind power blade production, car seat heating, and healthcare applications.

The company is recognized as a high-tech enterprise in Jiangsu Province and a small giant enterprise in Jiangyin City, specializing in innovative technologies. We operate the "Wuxi Heating Cable Engineering Technology Research Center" and collaborate with experts from renowned domestic universities. Our portfolio includes 5 invention patents and over 30 utility model patents, showcasing our strong research and development capabilities.

With an annual output exceeding 1,000 tons of thermal alloy wire and an output value of approximately 105 million yuan, our products are well-received in markets such as the UK, Italy, Canada, Peru, and Spain. Our heating cables generate an annual output value of over 80 million yuan, with exports to Germany, Japan, the United States, Malaysia, Denmark, Brazil, and other countries.

The company has successfully passed multiple quality management system certifications, including IATF 16949, ISO 9001, ISO 14001 (Environmental Management System), and ISO 45001 (Occupational Health and Safety Management System). Our heating cables and related products have also obtained test reports from the Shanghai Cable Research Institute Test Center and received certifications such as UL (United States), VDE (Germany), CE (European Union), and RoHS.

Commitment to Quality: We adhere to the business commitment of "Reputation First, Quality First, Customer First" and uphold the quality policy of "Integrity-Based, Quality-Oriented, Excellent Service." We are dedicated to providing accurate products and professional services, and we look forward to collaborating sincerely with you to achieve mutual success.