Bar/Rod/Wire/Forging/Plate/Strip N08825/Incoloy Alloy 825/NS142/NiCr21Mo/2.4858/NCF 825
For Nuclear Industries

INCOLOY® 825 (UNS N08825 / W.Nr. 2.4858 / NS142 / NiCr21Mo / NCF 825) is a nickel-iron-chromium alloy with added molybdenum, copper, and titanium, offering excellent resistance to corrosion in acidic and seawater environments. Available in bar, rod, wire, forging, plate, and strip, it is widely used in chemical processing, marine engineering, pollution control, and nuclear fuel reprocessing. The alloy resists pitting, crevice corrosion, and stress corrosion cracking, making it ideal for heat exchangers, piping, tanks, and offshore applications. It meets ASTM B425 and ASME SB-425 standards. With a balance of strength and corrosion resistance, INCOLOY 825 is a reliable material for demanding industries requiring durability in harsh conditions.

Trade Code

INCOLOY® 825 (UNS N08825 / W.Nr. 2.4858 / NS142 / NiCr21Mo / NCF 825) is a highly corrosion-resistant nickel-iron-chromium alloy with molybdenum, copper, and titanium additions. It is widely used in harsh environments due to its excellent resistance to oxidation, pitting, crevice corrosion, and stress corrosion cracking.

Key Features of INCOLOY 825

1. Exceptional Corrosion Resistance

• Resistant to both oxidizing and reducing environments.
• Excellent resistance to sulfuric, phosphoric, nitric, and organic acids.
• Highly resistant to chloride-induced stress corrosion cracking (SCC).
• Good performance in seawater and brine solutions.

2. High Temperature and Oxidation Resistance

• Maintains mechanical integrity and corrosion resistance up to 540°C (1000°F).
• Oxidation-resistant in moderate temperatures.

3. Superior Mechanical Properties

• High tensile and yield strength with good ductility.
• Retains strength in both room and elevated temperatures.
• Excellent fabricability – can be easily welded, hot/cold worked, and machined.

4. Weldability and Formability

• Easily welded by TIG, MIG, and submerged arc welding.
• Good cold and hot working characteristics.

Key Applications

1. Chemical Processing Industry

• Heat exchangers, tanks, and reactors handling sulfuric acid, phosphoric acid, nitric acid, and organic acids.
• Acid production plants, especially for sulfuric and phosphoric acid.
• Piping systems in highly corrosive environments.

2. Marine and Offshore Engineering

• Components exposed to seawater, brine, and high chloride environments.
• Heat exchangers and piping for desalination plants.
• Marine exhaust ducts and structural components in offshore oil rigs.

3. Oil and Gas Industry

• Downhole tubing, casing, and heat exchangers in sour gas wells.
• Equipment for handling H₂S (hydrogen sulfide), CO₂, and chlorides.
• Piping and process equipment for natural gas production and refining.

4. Nuclear and Power Generation

• Fuel reprocessing systems, heat exchangers, and piping.
• Nuclear waste storage and transport containers.
• Components exposed to radioactive and corrosive environments.

5. Aerospace Industry

• Exhaust ducts and heat exchangers for aircraft and jet engines.
• Components in chemical processing systems on spacecraft.

6. Pollution Control Equipment

• Flue gas scrubbers and waste treatment plants.
• Stack liners and ducts for acidic gas removal.

Why Choose INCOLOY 825?

✅ Excellent resistance to oxidizing and reducing acids
✅ High resistance to stress corrosion cracking
✅ Good mechanical properties at elevated temperatures
✅ Superior resistance to pitting and crevice corrosion

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.