UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes

Manufacturers and suppliers of UNS S32750 (Super Duplex 2507) Stainless Steel Seamless High Precision & Heat Exchanger Tubes engineered for extreme service conditions in offshore, oil & gas, chemical processing, and marine applications.

ISO 9001:2015 • ISO 14001:2015 • ISO 45001:2018 • PED 2014/68/EU Certified

UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes

Our UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes are engineered for the most demanding industrial environments where exceptional mechanical strength, superior corrosion resistance, and long-term operational reliability are critical. Also known as Super Duplex 2507, this advanced alloy features high levels of chromium, molybdenum, and nitrogen, delivering outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in aggressive and chloride-rich conditions.

The seamless, high-precision construction ensures uniform wall thickness and smooth internal surfaces, reducing pressure loss and maximizing thermal efficiency in heat exchangers, condensers, boilers, and high-pressure piping systems. These tubes maintain excellent performance across wide temperature and pressure ranges, making them ideal for offshore platforms, chemical processing plants, desalination facilities, and marine installations.

Widely used in oil & gas, power generation, chemical, and marine industries, our UNS S32750 seamless tubes undergo stringent quality control and advanced testing to meet international standards, delivering a durable, high-performance, and cost-effective solution for extreme service and critical process applications.

UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes

Comprehensive Reach

Our UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes are trusted across major industrial hubs in India and throughout the Middle East, including the UAE, Saudi Arabia, Qatar, Kuwait, and Oman. These regions rely on our super duplex tube solutions for oil & gas production, offshore platforms, desalination plants, chemical processing facilities, and large-scale infrastructure and energy projects where extreme corrosion resistance and high mechanical strength are essential.

In Europe, we supply Italy, Germany, Spain, the United Kingdom, France, and Turkey, where our UNS S32750 tubes are valued for their superior performance in high-temperature, high-pressure, and chloride-rich environments across chemical, marine, power generation, and thermal processing industries.

Africa, Americas & Asia-Pacific

Across Africa, the Americas, and the Asia-Pacific region, our super duplex stainless steel tubes support offshore energy, marine engineering, chemical processing, mining, and heavy manufacturing industries, delivering reliable performance in corrosive, high-stress, and extreme operating conditions.

Commitment to Quality

Wherever you operate—Doha, Dubai, London, Houston, or Singapore—Seminox Pipes & Tubes delivers premium-quality UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes, manufactured to stringent international standards for durability, traceability, and long-term performance in the world’s most demanding industrial environments.

Key Features of UNS S32750 Super Duplex Stainless Steel Seamless Tubes

High-Precision Seamless Construction

Manufactured using advanced seamless forming and controlled heat treatment to achieve uniform wall thickness, tight dimensional tolerances, and smooth internal surfaces for optimal fluid flow and heat transfer efficiency.

Exceptional Corrosion Resistance

Super Duplex 2507 stainless steel delivers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in highly aggressive, chloride-rich, and seawater environments.

Ultra-High Strength Performance

Significantly higher yield and tensile strength than standard duplex and austenitic grades, enabling safe operation in extreme pressure, heavy-load, and structural service conditions.

Superior Thermal & Pressure Stability

Maintains mechanical integrity and thermal performance in high-temperature, high-pressure systems such as heat exchangers, condensers, and offshore process piping.

Outstanding Resistance to Stress Corrosion Cracking

Engineered to withstand chloride-induced and sour-service cracking, ensuring enhanced safety, long-term reliability, and operational stability in harsh industrial and marine environments.

Extended Service Life & Low Lifecycle Cost

Designed for maximum durability with reduced maintenance requirements, delivering long-term cost efficiency in continuous-duty, corrosive, and high-performance applications.

Product Specification – UNS S32750 Super Duplex Stainless Steel Seamless Tubes (2507)

Outside Diameter
6.35 mm to 114.30 mm (1/4” to 4.5”)
Wall Thickness
0.71 mm to 12.70 mm (0.028” to 0.500”)
Grade / Material
Super Duplex Stainless Steel 2507
UNS S32750
EN 1.4410 / X2CrNiMoN25-7-4
Manufacturing Process
Seamless (Hot Extruded / Cold Drawn) • Solution Annealed • Pickled
Standards & Specifications
ASTM A789 / A789M – Heat Exchanger & Condenser Tubes
ASTM A790 / A790M – Pipes
ASME SA789 / SA790
EN 10216-5 (Seamless) / EN 10217-7 (If applicable)
DIN EN ISO 1127 / EN 10266
NACE MR0175 / ISO 15156 (Sour Service Compliance, where required)
Customer Drawings & Project Specifications
Length
Standard: 6 meters • Random Lengths • Up to 30 meters
Custom cut lengths as per EPC / Project Requirements
Surface Finish
Annealed & Pickled (AP), Bright Annealed (BA),
Polished (180 / 240 / 320 / 400 Grit), Electropolished
Mechanical Properties (Typical)
Yield Strength: ≥ 550 MPa
Tensile Strength: 800–1000 MPa
Elongation: ≥ 15%
Applications
Heat Exchangers & Condensers, Offshore & Marine Systems,
Oil & Gas Process Lines, Desalination Plants,
Chemical & Petrochemical Units, Pressure Vessels,
High-Pressure & Sour Service Piping,
Chloride-Rich & Extreme Corrosive Environments

Manufacturing, Testing & Quality Assurance – UNS S32750 Super Duplex Stainless Steel Seamless Tubes

Advanced Manufacturing

UNS S32750 Super Duplex Stainless Steel Seamless Tubes are manufactured using advanced hot extrusion and cold drawing processes followed by precision solution annealing and controlled heat treatment. The super duplex microstructure, enriched with chromium, molybdenum, and nitrogen, delivers exceptional mechanical strength and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, making these tubes ideal for offshore, marine, oil & gas, chemical processing, and high-pressure heat transfer applications.

Inspection & Testing

Each tube undergoes rigorous inspection and testing including Eddy Current Testing (ECT), Hydrostatic Pressure Testing, Positive Material Identification (PMI), chemical composition analysis, mechanical property verification, dimensional inspection, and detailed visual examination to ensure structural integrity, metallurgical consistency, and reliable performance in extreme service environments.

Certifications & Compliance

Manufactured in accordance with ASTM, ASME, EN, and ISO standards, including ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and PED 2014/68/EU. Tubes are supplied with EN 10204 3.1 / 3.2 certification, ensuring full material traceability, compliance with international regulatory requirements, and adherence to the highest global quality, safety, and environmental management systems.

Typical Applications of UNS S32750 Super Duplex Stainless Steel Seamless Tubes

Heat Exchangers & Condensers (High-Pressure & High-Salinity Systems)
Offshore Oil & Gas Production Lines
Marine & Subsea Piping Systems
Chemical & Petrochemical Processing Plants
Desalination & Seawater Intake Systems
Pressure Vessels & High-Pressure Heat Transfer Systems
Power Generation & Thermal Energy Systems
Pulp & Paper Industry Equipment
Chloride-Rich, Sour Service & Extreme Corrosive Environments

Looking for UNS S32750 Super Duplex Stainless Steel Seamless Heat Exchanger Tubes?

Connect with Seminox Pipes & Tubes for expert technical support, competitive pricing, and dependable global supply of premium UNS S32750 Super Duplex Stainless Steel Seamless High Precision & Heat Exchanger Tubes, engineered for offshore, oil & gas, desalination, marine, and extreme chloride-rich environments requiring exceptional strength, superior corrosion resistance, and long-term operational reliability.

Get in Touch

Phone Number

022 6659 5296
+91 9987403801
+918433943801

Email

domestic@seminoxpipes.com
export@seminoxpipes.com

Address

1219 / 1220, 12th Floor, Prasad Chambers, Girgaon, Mumbai- 400004

Business Hours

Monday — Friday 9am – 5pm
Saturday — 10am – 3pm
Sunday — Closed

Send Us a Message

Powered by Seminox Pipes & Tubes Pvt Ltd | Designed and Developed by Skytech SEO Solutions