TOM's ASTM A790 UNS S32750 pipe is manufactured to strict international standards and is now available for export to customers across Southeast Asia, the Middle East, Europe, North America, and other key industrial markets. With a strong focus on quality assurance, documentation, and on-time delivery, [Henan TOM Intelligent Technology Co., Ltd.] aims to support EPC contractors, distributors, and industrial end users with reliable super duplex piping solutions.
Product Advantages: Super Duplex 2507 Performance
ASTM A790 UNS S32750, commonly known as Super Duplex 2507, is a high-alloy ferritic-austenitic stainless steel designed for the most demanding corrosive environments. Its balanced chemistry - approximately 25% chromium, 4% molybdenum, and 0.27% nitrogen - delivers a Pitting Resistance Equivalent Number (PREN) of approximately 42, significantly higher than standard duplex 2205.
Key product features include:
High Mechanical Strength: Minimum yield strength of 550 MPa and tensile strength of 800 MPa, allowing thinner wall sections and reduced weight in high-pressure applications.
Excellent Chloride Corrosion Resistance: Superior resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-bearing environments such as seawater and offshore oil and gas systems.
High Critical Pitting Temperature: Approximately 65°C in 6% FeCl₃ testing, compared with about 35°C for standard duplex 2205.
Balanced Microstructure: Solution annealing at 1025–1125°C followed by rapid quenching ensures an approximately equal austenite-ferrite ratio, optimizing both toughness and corrosion resistance.
Wide Application Coverage: Suitable for offshore topsides, subsea pipelines, deepwater risers, heat exchangers, chemical process equipment, desalination plants, and marine engineering structures.
The company supplies ASTM A790 UNS S32750 pipe in seamless and welded forms, with dimensions, wall thicknesses, and lengths customized to project requirements. Each shipment can be accompanied by EN 10204 3.1 or 3.2 material test certificates, third-party inspection reports, and full traceability documentation.
Export Capabilities: Built for Global Projects
[Henan TOM Intelligent Technology Co., Ltd.] has developed a comprehensive export service system to serve international customers efficiently and reliably.
Global Market Coverage: The company exports to more than 15 countries and regions, with established logistics channels for Southeast Asia, the Middle East, Europe, South America, and Africa. It supports both full-container and less-than-container shipments.
Quality Assurance: From raw material selection to final inspection, every ASTM A790 UNS S32750 pipe undergoes strict quality control, including chemical composition analysis, mechanical property testing, hydrostatic testing, ultrasonic testing, and intermetallic phase testing per ASTM A923. The company also accepts third-party inspections such as SGS, BV, TUV, and Intertek.
Fast Delivery and Stock Support: With a stable supply chain and regular stock of popular sizes, TOM can shorten lead times for urgent offshore and chemical projects. Custom cutting, beveling, and surface treatment are available upon request.
Technical and Documentation Support: The export team provides English-language technical data sheets, mill certificates, packing lists, certificates of origin, and other customs clearance documents. Engineers are available to assist with material selection, welding guidance, and project-specific specifications.
Export Packaging: Pipes are packed in wooden cases, steel frames, or seaworthy bundles with end caps and waterproof protection, ensuring safe transport over long-distance ocean freight.
Market Demand Drives Super Duplex Adoption
As offshore oil and gas exploration moves into deeper and more corrosive environments, and as desalination and chemical projects expand worldwide, demand for super duplex stainless steel continues to rise. ASTM A790 UNS S32750 offers a compelling combination of strength, corrosion resistance, and life-cycle cost savings compared with conventional austenitic grades such as 316L and 904L.
"We have seen strong interest from overseas customers in Super Duplex 2507 for subsea and topside piping, especially in the Middle East and Southeast Asia," said bob, manager at Henan TOM Intelligent Technology Co., Ltd.. "Our goal is to be more than a supplier - we provide material selection support, reliable export documentation, and responsive service so that international clients can execute their projects with confidence."
About Henan TOM Intelligent Technology Co., Ltd.
TOM is a professional manufacturer and exporter of stainless steel pipes, tubes, fittings, and flanges, specializing in duplex and super duplex stainless steel, nickel alloys, and high-performance corrosion-resistant materials. The company serves oil and gas, chemical, desalination, marine, power, and pulp and paper industries worldwide. With advanced production equipment, strict quality control, and a customer-oriented export team, TOM is committed to delivering reliable piping solutions for global industrial projects.
