Inconel Alloy 625 UNS N06625 for High-Temperature Environments Outstanding Properties and Versatility

Inconel 625 (UNS N06625) is a high-performance superalloy known for its exceptional resistance to high-temperature environments, oxidation, and corrosion. It is primarily made of nickel, chromium, and molybdenum, with small amounts of niobium, iron, and other trace elements. Inconel 625 (UNS N06625) is a nickel-based superalloy with outstanding resistance to high temperatures, oxidation, and corrosion, making it ideal for extreme environments. Its versatility in both high-temperature and chemically aggressive conditions makes it highly valued in industries such as aerospace, chemical processing, marine, nuclear, and oil and gas. It maintains its strength and integrity across a wide range of temperatures and corrosive environments, making it essential for critical applications in demanding industries.

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Key Features:

• Composition (Approximate):

Nickel: 58-67%

Chromium: 20-23%

Molybdenum: 8-10%

Niobium: 3.15-4.15%

Iron: 5% max

Other elements: Small amounts of titanium, aluminum, and trace elements like manganese, silicon, and carbon.

• Mechanical Properties:

Tensile Strength: Typically 760 MPa (110,000 psi) at room temperature, but increases significantly at higher temperatures.

Yield Strength: Approximately 350 MPa (50,000 psi) at room temperature.

Elongation: About 35% minimum.

Hardness: Hardness varies with processing, typically around 90-160 HRB depending on the form and heat treatment.

• Corrosion and Oxidation Resistance:

Excellent resistance to a wide range of harsh environments, including:

Oxidation: Highly resistant to oxidation, even at elevated temperatures (up to 980°C or 1800°F).

Corrosion: Resistant to corrosion in seawater, sulfuric acid, hydrochloric acid, and other aggressive chemicals.

Pitting and Crevice Corrosion: Excellent resistance in marine and other chloride-rich environments.

Stress Corrosion Cracking: Highly resistant to stress corrosion cracking, even in high-stress applications.

• Thermal Properties:

Melting Point: Approximately 1350-1400°C (2462-2552°F).

Thermal Conductivity: Relatively low compared to many other metals, due to its composition.

Coefficient of Expansion: Moderate, which is beneficial for maintaining dimensional stability in varying temperatures.

• Weldability & Fabrication:

Inconel 625 is known for its excellent weldability. It can be welded using most common methods, including TIG, MIG, and gas tungsten arc welding (GTAW).

Excellent formability and can be fabricated into complex shapes like sheets, tubes, and wires without a significant loss of properties.

The alloy maintains its high strength and resistance to oxidation even after welding and heat treatment.

Applications:

• Aerospace: Used in jet engines, gas turbines, and exhaust systems due to its resistance to high-temperature oxidation and corrosion.
• Chemical Processing: Equipment exposed to highly corrosive environments, such as reactor cores, heat exchangers, and piping in the chemical industry.
• Marine: Components used in sea water applications, including heat exchangers, marine gas turbines, and seawater pumps.
• Nuclear: Components in nuclear reactors, such as control rods and core structural elements, because of its resistance to radiation and high temperature.
• Oil and Gas: Equipment exposed to extreme conditions in deep-sea drilling or high-pressure, high-temperature environments.
• Industrial: Heat exchangers, furnaces, and other high-temperature industrial equipment.

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.