Structural Integrity for Critical Flow Systems: TOBO Super Duplex Pipes (ASTM A790 / DIN 1.4410)

Structural Integrity for Critical Flow Systems: TOBO Super Duplex Pipes (ASTM A790 / DIN 1.4410)

TOBO presents its advanced Super Duplex Stainless Steel Pipes, engineered to define reliability in high-stakes industrial applications. These pipes are meticulously manufactured to meet the rigorous demands of modern engineering, offering an unparalleled blend of immense strength and formidable corrosion resistance. As a cornerstone for durable and safe infrastructure, TOBO's product ensures exceptional performance and longevity, effectively withstanding aggressive chemicals, high pressures, and demanding environmental conditions to secure continuous and efficient operations.

1. Product Description
   TOBO Super Duplex Stainless Steel Pipes are high-performance tubular products designed for severe service. Fabricated from alloys such as UNS S32750/S32205, they possess a balanced microstructure of austenite and ferrite phases. This sophisticated material composition is achieved through precise thermo-mechanical processing and controlled chemistry, resulting in a pipe solution that reliably bridges the gap between extreme mechanical demand and corrosive operational challenges.

2. Key Parameters
   These pipes are produced in strict compliance with the American standard ASTM A790/A928 and the German standard DIN 17456 for material 1.4410 (X2CrNiMoN25-7-4). They exhibit a typical minimum yield strength of 550 MPa and a minimum tensile strength of 750-800 MPa. Available in a wide array of diameters and wall thicknesses per schedule specifications, they can be supplied in various lengths and with end finishes tailored to specific connection requirements.

3. Product Applications
   Their primary use is in sectors requiring uncompromising material performance. Key application fields include offshore oil and gas platforms (for process piping, risers, flow lines), chemical tankers and shipbuilding, pulp and paper manufacturing, and industrial heat exchangers or condensers. They are also increasingly specified for geothermal energy plants and advanced chemical processing reactors.

4. Product Advantages
   The principal advantage is their superior cost-performance ratio over nickel alloys and standard stainless steels, offering similar corrosion resistance at higher strength. They feature excellent resistance to erosion-corrosion and fatigue. Their high strength allows for lighter and more economical system designs through reduced wall thickness. Furthermore, they demonstrate good weldability and fabribility with proper procedures, ensuring project versatility.

5. Product Functionality
   The fundamental function of these pipes is to provide a safe, long-lasting, and maintenance-conserving conduit for challenging fluids. They are designed to maintain boundary integrity, preventing costly leaks and unplanned shutdowns. By ensuring consistent flow in critical systems, they contribute directly to operational safety, environmental protection, and overall project lifecycle economics, providing a robust solution for the most demanding industrial flow systems.

​

Payment & Invoicing

• First-Time Clients: 50% advance payment, 50% balance before shipment.
• Strategic Clients: 30% advance, 70% payment against copy of Bill of Lading.
• Long-Term Agreements: 60-day credit terms available (subject to credit approval).
• Invoicing: 13% VAT Special Invoice provided; FORM A Certificate of Origin for exports.
• fication System: Laser marking includes material code, pressure rating, and flow direction arrows.

FAQ

1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the Alibaba certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment