N08825/Incoloy Alloy 825/NS142/NiCr21Mo/2.4858/NCF 825 Incoloy Alloy Nuts For Petrochemical And Chemical Processing

Incoloy 825 (UNS N08825 / W.Nr. 2.4858) is a nickel-iron-chromium alloy with added molybdenum, copper, and titanium, offering excellent resistance to corrosion and oxidation. It is particularly effective against sulfuric and phosphoric acids, making it ideal for harsh environments like chemical processing, marine applications, and nuclear fuel reprocessing.

Incoloy 825 nuts are highly durable, maintaining strength and stability in extreme temperatures and aggressive conditions. Their superior resistance to pitting, crevice corrosion, and stress corrosion cracking ensures longevity in seawater, acidic solutions, and oxidizing agents. These nuts are widely used in heat exchangers, piping systems, and offshore structures where corrosion resistance is critical.

Available in various sizes and specifications, Incoloy 825 nuts comply with ASTM B564 standards, ensuring reliability in industrial applications. Their excellent mechanical properties, combined with outstanding weldability and fabrication capabilities, make them a preferred choice for demanding industries requiring high-performance fasteners.

Trade Code

Incoloy 825 (N08825) Alloy Nut – Key Features

• Corrosion Resistance – Excellent resistance to a wide range of corrosive environments, including sulfuric and phosphoric acids, seawater, and oxidizing or reducing agents.
• High-Temperature Performance – Maintains strength and oxidation resistance in high-temperature applications.
• Nickel-Iron-Chromium Base – Provides a strong and stable structure with added molybdenum, copper, and titanium for enhanced performance.
• Pitting and Crevice Corrosion Resistance – Superior protection against localized corrosion, making it ideal for marine and chemical processing applications.
• Stress Corrosion Cracking Resistance – Resists chloride-induced stress corrosion cracking, ensuring durability in harsh conditions.
• Good Mechanical Properties – Offers high tensile strength, good toughness, and excellent creep resistance.
• Weldability – Can be easily welded using standard welding techniques without compromising its properties.
• Versatile Applications – Commonly used in chemical processing, nuclear industry, marine engineering, pollution control, and heat exchangers.

Incoloy 825 (UNS N08825, W.Nr. 2.4858) is a corrosion-resistant nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. It is designed for excellent resistance to acidic and marine environments, making it ideal for various industrial applications.

Applications of Incoloy 825 Nuts

• Chemical Processing Industry

Used in equipment handling sulfuric, phosphoric, and nitric acids

Ideal for heat exchangers, piping systems, reactors, and tanks

Resistant to stress corrosion cracking and pitting in acidic conditions

• Marine and Offshore Engineering

Suitable for seawater applications due to excellent resistance to crevice corrosion

Used in subsea piping systems, offshore platforms, and shipbuilding components

• Aerospace and Defense

Applied in high-temperature and corrosive environments, such as exhaust systems

Used in aircraft fuel and hydraulic line fittings

• Power Generation

Utilized in nuclear and fossil fuel power plants

Found in heat exchangers and piping that handle aggressive cooling waters

• Oil & Gas Industry

Used in downhole and surface gas well components, where sour gas (H₂S) resistance is required

Common in tubing hangers, valves, and pipeline components exposed to corrosive fluids

• Food Processing and Pollution Control

Suitable for handling acidic and contaminated solutions in waste treatment plants

Used in heat exchangers, scrubbers, and evaporators in food and beverage processing

• Pharmaceutical and Biomedical Applications

Found in processing equipment where corrosion resistance is essential for hygiene

Used in reactor vessels and piping systems handling aggressive chemicals

Why Use Incoloy 825 Nuts?

• High resistance to chloride-induced stress corrosion cracking
• Excellent mechanical properties at elevated temperatures
• Outstanding resistance to reducing and oxidizing acids
• Long service life in harsh environments

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.