Premium ASTM B423 Incoloy 825 coiled tubes from an ISO 9001 certified manufacturer. Available as UNS N08825 seamless and precision coiled tubes, ASME SB423 Alloy 825 tubing, and WNR 2.4858 coiled tubes for marine, chemical, and industrial heat exchanger applications, with OD 6mm–25.4mm and excellent corrosion and temperature resistance.
New Eagle Industrial Corporation offers high-quality ASTM B423 Incoloy 825 coiled tubes, manufactured from UNS N08825 nickel-iron-chromium alloy. Available in seamless and precision-coiled forms, these tubes ensure consistent dimensional accuracy and superior surface finish for critical installations.
Incoloy 825 coiled tubing demonstrates excellent tensile and yield strength, along with outstanding creep and fatigue resistance, allowing it to perform reliably under high-pressure and elevated temperature conditions. With a melting point above 1350°C, these tubes maintain structural integrity in both oxidizing and reducing environments. They are widely used in heat exchangers, instrumentation lines, and process piping systems where long-term durability and safety are crucial.
These Alloy 825 coiled tubes are fully weldable using methods like TIG, MIG, and plasma welding. They can be bent, flared, or coiled to fit complex piping layouts, with post-weld heat treatment ensuring retained corrosion resistance. This makes Incoloy 825 coil tubes ideal for custom fabrication and modular system assembly.
All Incoloy 825 coiled tubes from us meet ASTM B423, ASME SB423, UNS N08825, and WNR 2.4858 standards. Our ISO 9001:2015 certified manufacturing ensures quality, traceability, and compliance for critical projects worldwide, including marine, petrochemical, power generation, and offshore industries.
ASTM B423 Incoloy 825 Coil Tubing – Technical Specifications
Incoloy 825 Coil Tubing – Chemical Composition
The balanced combination of nickel, chromium, molybdenum, and copper in Incoloy 825 ensures excellent resistance to corrosion in oxidizing and reducing acids, seawater, and high-temperature environments.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 38–46 |
| Chromium (Cr) | 19.5–23.5 |
| Iron (Fe) | 38 min |
| Molybdenum (Mo) | 2.5–3.5 |
| Copper (Cu) | 1.5–3.0 |
| Titanium (Ti) | 0.6–1.2 |
| Aluminum (Al) | 0.2–0.6 |
| Carbon (C) | 0.05 max |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.5 max |
| Sulfur (S) | 0.03 max |
| Phosphorus (P) | 0.03 max |
Incoloy 825 Seamless Coiled Tubes – Mechanical Properties
Incoloy 825 coiled tubes offer high tensile strength, excellent elongation, and resistance to creep and fatigue, making them suitable for high-pressure, high-temperature, and corrosive industrial applications.
| Property | Value |
|---|---|
| Tensile Strength | 758–827 MPa |
| Yield Strength (0.2% offset) | 414 MPa min |
| Elongation | 30–50% |
| Hardness (Brinell) | 187–241 HB |
| Modulus of Elasticity | 200 GPa |
| Density | 8.0 g/cm³ |
| Melting Range | 1350–1400 °C |
ASME SB423 Alloy 825 coiled tubes – Equivalent Grades
These equivalents ensure global compatibility and compliance, making Incoloy 825 coiled tubes suitable for marine, chemical, offshore, and high-temperature industrial applications.
| Standard / Specification | Equivalent Grade |
|---|---|
| UNS | N08825 |
| EN / DIN | 2.4858 |
| JIS | NCF 825 |
| BS | 2.4858 |
| GOST / Russian Standard | 2.4858 |
| ASME / ASTM | B423 / SB423 |
How does Incoloy 825 coiled tubes compare with Inconel 625 coiled tubes?
- Nickel-based Alloys: Both Incoloy 825 and Inconel 625 are high-performance nickel-based alloys, engineered for extreme industrial environments.
- Composition Difference: Incoloy 825 contains higher iron and copper content, enhancing its resistance to reducing and acidic environments.
- Temperature & Oxidation Resistance: Inconel 625, with higher nickel and molybdenum content, excels in oxidizing conditions and high-temperature applications.
- Application Selection: The choice between the two depends on:
- Type of chemical exposure (acidic/reducing vs oxidizing)
- Operating temperature requirements
- Mechanical stress and pressure conditions
How long is the expected service life of Incoloy 825 coiled tubes?
- Durability: With proper installation, coiled tubes can offer 20+ years of reliable service in corrosive, acidic, or high-temperature environments.
- Low Maintenance: Minimal maintenance is required due to high corrosion resistance and mechanical stability.
- Industrial Applications: Commonly used in chemical processing, marine, offshore, and high-temperature piping systems, where long-term performance is critical.
- Factors Affecting Life:
- Correct handling and installation procedures
- Operating within recommended temperature and pressure ranges
- Regular inspection for mechanical or environmental stress
Are Incoloy 825 coiled tubes suitable for instrumentation lines?
- Precision & Accuracy: Seamless construction and tight dimensional tolerances ensure accurate and reliable fluid flow in instrumentation systems.
- Corrosion Resistance: Excellent resistance to chemical attack, chloride stress corrosion, and acidic media, making them ideal for critical monitoring lines.
- Flexibility & Installation: Can be coiled, bent, or flared to fit complex piping layouts without compromising integrity.
- Industrial Applications: Widely used in chemical, petrochemical, offshore, and marine systems for:
- Pressure measurement lines
- Sample collection lines
- Control and monitoring tubing
Global Export Network for Incoloy 825 Coil Tubing
As a trusted manufacturer and exporter, New Eagle Steel supplies Alloy 825 coiled Tubes globally. Our high-performance products are widely used in chemical processing, pollution control, marine, and pharmaceutical industries across Europe, the Middle East, Asia, and the Americas, ensuring exceptional corrosion resistance, reliability, and precision engineering.
- Middle East: United Arab Emirates (UAE), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Yemen, Iran, Iraq, Israel, Jordan, Lebanon, Syria, Turkey
- North Africa: Egypt, Algeria, Morocco, Tunisia, Libya
- Asia Pacific: Singapore, Malaysia, Vietnam, Indonesia, Thailand, Philippines, Cambodia, Laos, Myanmar, Brunei, Timor-Leste, Taiwan, Japan, South Korea
- Europe: Spain, Belgium, Netherlands, France, Germany, Italy, United Kingdom (England), Poland, Cyprus, Malta, Russia
- Americas: Brazil, Mexico, Chile, Peru, Colombia, Argentina, United States (USA), Canada
- India: Chennai, Coimbatore, Bangalore, Thiruvananthapuram, Pune, Kolkata, Kerala, Karnataka, Gujarat, Mumbai, Delhi
Applications of ASTM B423 Incoloy 825 Coil Tubing Across Industries
Oil & Gas Industry
Petrochemical & Chemical Processing
Power Generation (Thermal, Nuclear & Renewable)
Marine & Offshore Engineering
Pharmaceuticals & Biotechnology
Food, Beverage & Dairy Processing
Pulp & Paper Industry
Aerospace & Defense
Automotive & Transportation
Instrumentation & Control Systems
Water Treatment & Desalination
HVAC & Heat Exchanger Systems
Construction & Infrastructure Projects
Mining & Metallurgy
