Certified 2507 Super Duplex Instrumentation Tubes (UNS S32750 / S32760) – Manufactured per ASTM A789 in seamless and welded forms. F53 and F55 duplex instrumentation tubes are available in multiple sizes and custom lengths, supplied to customers worldwide.
New Eagle Industrial Corporation is a trusted manufacturer of Super Duplex Instrumentation Tubes (UNS S32750 / S32760 / 2507) designed for high-performance and demanding industrial applications. Our tubing is produced in compliance with ASTM A789 standards, ensuring seamless and welded options with consistent quality. Known for exceptional corrosion resistance, high tensile strength, and durability.
Our Super Duplex 2507 instrumentation tubes are made from high-alloy duplex stainless steel, offering excellent resistance to pitting, crevice, and stress corrosion cracking, even in aggressive chloride and chemical environments. They are available in various outer diameters, wall thicknesses, and custom lengths, fully ISO and EN 1.4410 / 1.4501 certified.
Super Duplex Instrumentation tubes are widely used in offshore platforms, chemical processing plants, marine systems, and power industries, where long-term reliability and corrosion resistance are essential. We provide bulk supply, custom sizes, and certified material traceability, along with technical support for project-specific requirements. Partnering with New Eagle Steel ensures premium quality 2507 duplex instrumentation tubing designed to deliver safety, performance, and operational efficiency in challenging environments.
Super Duplex F53 instrumentation tubes – Technical Specifications
Standard
Grade
Manufacturing Process
Outer Diameter Range (OD)
Wall Thickness
Length
Surface Finish
End Finish
Tolerances
Testing & Inspection
Heat Treatment
Surface Protection
Certifications
Equivalent Standards
Applications
Instrumentation Tubes
- Stainless Steel
- ASTM A269 TP316
- ASTM A269 TP316L
- ASTM A269 TP317/317L
- ASTM A269 TP904/904L
- Hastelloy (C276 – ASTM B622)
- Monel 400 (ASTM B163 / B165)
- Inconel 625 (ASTM B444)
- Incoloy 825 (ASTM B423)
- SMO 254 (ASTM A213 / A269)
- Duplex (UNS S31803 / S32205 – ASTM A789 / A790)
- Super Duplex (UNS S32750 / S32760 / 2507 – ASTM A789 / A790)
- Copper (ASTM B68 / B75 / B251)
Precision-Engineered Products
ASTM A789 Super duplex 2507 instrumentation tubing – Chemical Composition
This chemical composition ensures that Super Duplex 2507 / F53 / F55 instrumentation tubes deliver exceptional corrosion resistance, high mechanical strength, and durability for oil, gas, chemical, and offshore instrumentation systems.
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 25 – 26 |
| Nickel (Ni) | 6 – 8 |
| Molybdenum (Mo) | 3 – 5 |
| Nitrogen (N) | 0.24 – 0.32 |
| Iron (Fe) | Balance |
| Copper (Cu) | 0.5 max |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 1.0 max |
| Carbon (C) | 0.03 max |
UNS S32750 / S32760 instrumentation tubing – Mechanical Properties
These mechanical properties ensure that Super Duplex 2507 / F53 / F55 instrumentation tubes provide high strength, toughness, and reliability in critical oil, gas, chemical, and offshore instrumentation applications.
| Property | Value / Range |
|---|---|
| Yield Strength (MPa) | 550 – 750 |
| Tensile Strength (MPa) | 800 – 950 |
| Elongation (%) | 25 – 35 |
| Impact Toughness (J at 20°C) | 70 – 150 |
| Hardness (HRB) | ≤ 95 |
F55 Super Duplex stainless steel instrumentation tubes – Equivalent Grades
This table shows the global equivalent grades of Super Duplex 2507 / F53 / F55 instrumentation tubes, ensuring international compatibility, certified quality, and adherence to ASTM, EN, ISO, and other standards for oil, gas, chemical, and offshore applications.
| Standard / Region | Equivalent Grade |
|---|---|
| UNS | S32750 / S32760 / 2507 |
| ASTM | A789 / A790 |
| ASME | SA789 / SA790 |
| EN / DIN | 1.4410 / 1.4501 |
| JIS | SUS32750 / SUS32760 |
| BS | 8901 |
| GOST | 06Х22Н6М2 |
What is the difference between 2507, F53, and F55 instrumentation tubes?
- 2507 / UNS S32750 / S32760: Standard super duplex instrumentation tube, with 25–26% Cr, 6–8% Ni, 3–5% Mo, and nitrogen for excellent corrosion resistance.
- F53: High-performance super duplex instrumentation tube with enhanced resistance to chloride stress corrosion cracking, often used in offshore and seawater applications.
- F55: Premium super duplex instrumentation tube with higher molybdenum content and mechanical strength, suitable for aggressive chemical and high-pressure instrumentation lines.
Why choose F53 or F55 over standard 2507 Instrumentation tubing?
F53 and F55 grades offer enhanced corrosion resistance and mechanical strength compared to standard 2507 tubing. F53 is preferred for seawater and offshore conditions, while F55 is used in aggressive chemical environments requiring maximum durability.
Can Super Duplex Instrumentation Tubes be supplied in custom sizes and lengths?
- Custom Diameters: Tubes are available in a wide range of outer diameters (OD) to suit different piping and instrumentation system requirements.
- Wall Thickness Options: Choose from multiple wall thicknesses (Sch / mm) for high-pressure, high-strength, or low-weight applications.
- Custom Lengths: Tubes can be supplied in standard or project-specific lengths, including long-length cuts for large industrial projects.
- Seamless and Welded Options: Both seamless and welded super duplex tubes are available to match pressure, size, and cost requirements.
- Grades Available: Includes F53, F55, and 2507 / UNS S32750 / S32760, covering standard and high-performance super duplex applications.
- Global Supply: Tubes are export-ready and supplied worldwide, ensuring compatibility with international standards (ASTM, EN, ISO, JIS, BS, GOST).
- Project-Specific Solutions: Custom sizes and grades can be tailored for oil, gas, chemical, marine, and offshore instrumentation systems.
Global Export Network for 2507 Super Duplex instrumentation Tubing
As a trusted manufacturer and exporter, New Eagle Steel supplies Duplex Instrumentation 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 A789 Super Duplex 2507 instrumentation tubes 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

