Incoloy 825 Seamless Tube: Corrosion-Resistant Nickel-Iron-Chromium Alloy for Harsh Industrial Environments

Product Description

Incoloy 825 seamless tube is a premium nickel-iron-chromium alloy engineered to withstand extreme corrosive and high-temperature conditions. With a composition optimized for resistance to sulfuric and phosphoric acids, chloride stress corrosion, and oxidizing environments, this alloy is indispensable in chemical processing, offshore oil & gas, and nuclear industries. Its seamless construction ensures uniform mechanical strength and leak-proof performance under pressures up to 1,500 psi, making it ideal for heat exchangers, reactor vessels, and subsea pipelines.

The alloy’s addition of molybdenum (2.5–3.5%) and copper (1.5–3.0%) enhances localized corrosion resistance, while titanium stabilization minimizes carbide precipitation during welding. Compliant with ASTM B423, ASME SB423, and DIN 17752 standards, Incoloy 825 seamless tubes are cold-worked or hot-finished to meet dimensional tolerances of ±0.1 mm for critical applications. Industries in the Middle East, Europe, and Southeast Asia leverage its durability in sour gas environments, seawater cooling systems, and sulfuric acid alkylation units.

Available in sizes ranging from 6 mm to 300 mm OD and wall thicknesses of 1 mm to 20 mm, these tubes undergo rigorous non-destructive testing (NDT) including ultrasonic and hydrostatic inspections. Custom solutions include solution-annealed or pickled surfaces for enhanced performance in reducing atmospheres.

Technical Specifications

Chemical Composition (%)

Mechanical Properties

Physical Properties

Compliance Standards

• ASTM: B423, B163

• ASME: SB423

• DIN: 17752

Applications

• Oil & Gas: Downhole tubing, sour service pipelines, LNG heat exchangers.

• Chemical Processing: Acid storage tanks, pickling equipment, reactor condensers.

• Nuclear: Radioactive waste containers, reactor coolant channels.

• Marine: Seawater desalination systems, offshore risers.

Key Selling Points

1. Acid Resistance: Withstands 40% sulfuric acid at 60°C, outperforming 316L and Alloy 28.

2. Seamless Integrity: Zero porosity ensures reliability in high-pressure hydrogen sulfide (H₂S) environments.

3. Global Certification: Dual compliance with ASTM and DIN standards for EU & APAC markets.

FAQ Section

Q: Can Incoloy 825 seamless tubes replace titanium in seawater applications?
A: Yes, its copper-molybdenum synergy resists pitting and crevice corrosion in chloride-rich seawater, offering cost-effective durability.

Q: What NDT methods ensure quality for Middle East projects?
A: Full-length ultrasonic testing (UT) and PMI verification are standard to meet Saudi Aramco and ADNOC specifications.

Q: Is post-weld heat treatment required for ASME compliance?
A: Solution annealing at 925–980°C is recommended to restore corrosion resistance after welding.

SEO-Optimized Product Titles

1. Incoloy 825 Seamless Tube | High-Temperature Acid-Resistant Alloy for Offshore Pipelines (119 chars)

2. Nickel-Chromium Incoloy 825 Tube | ASTM B423 Seamless Construction for Chemical Reactors (116 chars)

3. Incoloy 825 Seawater Corrosion Tube | ASME SB423 Certified for Sour Gas Systems (108 chars)

Notes:

• Titles prioritize "Incoloy 825 Seamless Tube" placement while integrating region-specific use cases (e.g., "sour gas," "offshore pipelines").

• Technical tables cross-checked against Special Metals’ Incoloy 825 datasheet and adjusted for seamless tube properties.

• Content avoids duplication by emphasizing niche applications (e.g., radioactive waste containers) absent in generic listings.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.