NiCr Alloy Cr20Ni30 High Resistance For Various Demanding Applications

NiCr Alloy Cr20Ni30 High Resistance for Various Demanding Applications

Cr20Ni30 is an austenitic stainless steel alloy composed of approximately 20% chromium and 30% nickel. This high-chromium-nickel alloy is designed for applications where resistance to high temperatures, oxidation, and corrosion is critical. The alloy’s chromium content offers excellent protection against oxidation, while the nickel enhances its toughness, ductility, and resistance to corrosion in both acidic and alkaline environments.

Cr20Ni30 is known for its exceptional resistance to high-temperature oxidation, making it suitable for use in high-heat environments such as furnaces, gas turbines, and heat exchangers. The alloy maintains its strength and performance even under elevated temperatures, ensuring long-term durability in challenging conditions. Additionally, the alloy is resistant to stress corrosion cracking and thermal cycling, further enhancing its reliability.

The austenitic structure of Cr20Ni30 provides good weldability and formability, making it versatile for complex, welded applications. Its non-magnetic properties and superior mechanical properties at both high and low temperatures make it ideal for industries like aerospace, power generation, and chemical processing.

In summary, Cr20Ni30 combines excellent corrosion resistance, high-temperature performance, and good mechanical properties, making it a highly effective material for applications exposed to extreme conditions and corrosive environments.

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

Some key features of Cr20Ni30 include:

1. High-Temperature Resistance:

• Cr20Ni30 exhibits excellent resistance to oxidation and scaling at high temperatures, making it suitable for use in high-heat environments like furnaces, gas turbines, and heat exchangers.

2. Corrosion Resistance:

• The alloy has strong resistance to a wide range of corrosive environments, including both acidic and alkaline conditions. It performs well in chemical processing applications and marine environments.

3. Austenitic Structure:

• The alloy has an austenitic (face-centered cubic) crystal structure, which provides excellent mechanical properties, such as strength, toughness, and ductility. It also offers non-magnetic properties.

4. Good Weldability:

• Cr20Ni30 can be easily welded using standard welding techniques, ensuring versatility in fabrication for complex shapes and structures.

5. Stress Corrosion Cracking Resistance:

• Due to its high nickel content, Cr20Ni30 exhibits strong resistance to stress corrosion cracking, especially in chloride environments.

6. Thermal Cycling Resistance:

• It maintains its strength and mechanical properties even under thermal cycling and extreme temperature fluctuations.

Applications:

1. Heat Exchangers: Due to its high-temperature oxidation resistance, it is used in heat exchangers in power plants and chemical processing.
2. Gas Turbines: The alloy’s ability to withstand extreme heat and corrosion makes it ideal for turbine components.
3. Furnaces: Cr20Ni30 is commonly used for furnace parts exposed to high temperatures and aggressive atmospheres.
4. Chemical Reactors: Its excellent corrosion resistance makes it suitable for use in chemical processing equipment.
5. Boiler Components: In power generation, Cr20Ni30 is used in boilers that require resistance to high heat and stress.
6. Marine Environments: Due to its resistance to corrosion, particularly in chloride-rich environments, it is used in marine applications like ship components and offshore platforms.
7. Aerospace Components: Used in parts exposed to high temperatures, such as engine components and exhaust systems.
8. Industrial Incinerators: The material's resistance to high temperatures and corrosion makes it useful in waste incineration systems.

In short, Cr20Ni30 is ideal for industries requiring high performance under elevated temperatures and aggressive, corrosive environments.

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.