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.

Super Duplex Instrumentation Tubes

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

ASTM A789 / ASME SA789

Grade

2507 (UNS S32750 / S32760) / F53, F55

Manufacturing Process

Seamless / Cold Drawn

Outer Diameter Range (OD)

6 mm to 114.3 mm (1/4” to 4-1/2”)

Wall Thickness

0.5 mm to 8 mm (Custom thickness on request)

Length

6 Meters (Standard) / Up to 12 Meters (Custom)

Surface Finish

Bright Annealed (BA), Polished, Pickled & Passivated, or Mirror Finish

End Finish

Plain Ends (PE), Beveled Ends (BE), Threaded Ends (on request)

Tolerances

As per ASTM A789 / ASME SA789 (OD, Wall ±10%)

Testing & Inspection

Hydrostatic Test, Eddy Current Test, Ultrasonic Test, PMI, Mechanical Testing, Dimensional & Visual Inspection

Heat Treatment

Bright Annealed / Solution Annealed at 1900°F (1040°C) minimum, followed by rapid quenching

Surface Protection

Plastic-capped ends, HDPE/woven wrapping, export bundles with identification tags

Certifications

EN 10204 3.1 / 3.2, ISO 9001:2015, PED 2014/68/EU (on request)

Equivalent Standards

UNS S32750 / S32760 • EN 1.4410 • WNR 1.4410 • JIS SUS32750 / SUS32760 • ASTM A789 / A790 • ASME SA789 / SA790 • BS 3928 • GOST ХН77МТЮ

Applications

Instrumentation Tubing, Hydraulic & Pneumatic Systems, Heat Exchangers, Condensers, Power Plants, Process Industries, Chemical & Petrochemical Plants

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.

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.

  • 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.

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
Oil & Gas Industry
Petrochemical & Chemical Processing
Petrochemical & Chemical Processing
Power Generation (Thermal, Nuclear & Renewable)
Power Generation (Thermal, Nuclear & Renewable)
Marine & Offshore Engineering
Marine & Offshore Engineering
Pharmaceuticals & Biotechnology
Pharmaceuticals & Biotechnology
Food, Beverage & Dairy Processing
Food, Beverage & Dairy Processing
Pulp & Paper Industry
Pulp & Paper Industry
Aerospace & Defense
Aerospace & Defense
Automotive & Transportation
Automotive & Transportation
instrumentation control systems
Instrumentation & Control Systems
Water Treatment & Desalination
Water Treatment & Desalination
HVAC & Heat Exchanger Systems
HVAC & Heat Exchanger Systems
Construction & Infrastructure Projects
Construction & Infrastructure Projects
Mining & Metallurgy
Mining & Metallurgy
Semiconductor & High-Purity Gas Distribution
Semiconductor & High-Purity Gas Distribution