Incoloy 800H/NS112A/UNS N08810 High-Temperature Alloy Bolt For High-Temperature Applications With Global Standard

The Incoloy 800H (NS112A / UNS N08810 / 1.4876) bolt is a high-performance fastener designed for extreme environments, particularly in high-temperature and corrosive applications. Made from a nickel-iron-chromium alloy, it offers excellent resistance to oxidation, carburization, and sulfidation at elevated temperatures, typically up to 1100°C (2012°F). The alloy’s enhanced creep and rupture strength is achieved through controlled carbon and grain size optimization.

Commonly used in heat exchangers, power plants, furnace components, and petrochemical processing, these bolts maintain superior mechanical properties under thermal cycling and stress. They also resist chloride-induced stress corrosion cracking, making them ideal for offshore and chemical industries.

Trade Code

Incoloy 800H (NS112A / UNS N08810 / 1.4876) Bolt – Key Features

• High-Temperature Resistance – Excellent strength and stability at elevated temperatures up to 1100°C (2012°F), making it ideal for heat-exposed environments.
• Corrosion & Oxidation Resistance – Superior resistance to oxidation, carburization, and sulfidation in high-temperature and corrosive environments.
• Creep & Rupture Strength – Enhanced creep and stress rupture strength due to higher carbon content compared to Incoloy 800.
• Nickel-Iron-Chromium Alloy – Composed of approximately 32-35% Ni, 19-23% Cr, and balance Fe, providing strength and durability.
• Excellent Structural Stability – Maintains microstructural stability over prolonged exposure to high temperatures, reducing material degradation.
• Good Mechanical Properties – Offers high tensile strength and ductility, ensuring durability under mechanical stress.
• Resistance to Acidic & Sulfur Environments – Performs well in environments with sulfur-containing gases and acidic conditions.

Incoloy 800H (also known as NS112A, UNS N08810, and 1.4876) is a high-temperature, corrosion-resistant nickel-iron-chromium alloy known for its excellent strength and oxidation resistance. It is widely used in various high-temperature and corrosive environments.

Applications of Incoloy 800H Bolts:

• Petrochemical & Chemical Processing

Used in heat exchangers, reactors, and piping systems exposed to high temperatures and corrosive media.

Handles exposure to sulfur-containing environments in refining operations.

• Power Generation

Steam generator tubing in power plants.

High-temperature fasteners in gas turbines and boiler components.

• Heat Treatment Equipment

Fixtures, trays, and bolts used in heat treatment furnaces.

Withstands cyclic heating and cooling without losing mechanical integrity.

• Aerospace & Aviation

High-temperature fastening applications in jet engines and exhaust systems.

Used in aircraft turbine components due to its oxidation resistance.

• Nuclear Industry

Structural components and fasteners in nuclear reactors.

Used in heat exchangers for cooling systems in nuclear plants.

• Marine & Offshore Engineering

Fasteners for offshore platforms and ship exhaust systems.

Withstands high-salinity and high-temperature environments.

• Automotive & Transportation

Used in high-performance and racing vehicle exhaust systems.

Resists oxidation and creep deformation at elevated temperatures.

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.