TOBO Super Duplex Stainless Steel Pipes (ASTM A790 / DIN 1.4410) – High

Product Specification

TOBO Super Duplex Stainless Steel Pipes (ASTM A790 / DIN 1.4410) – High Structural Integrity for Critical Flow Systems
 

TOBO introduces its state-of-the-art super duplex stainless steel pipes, designed to deliver outstanding reliability in demanding industrial environments. Manufactured with meticulous precision, these pipes fulfill the stringent requirements of contemporary engineering, combining exceptional structural strength and excellent corrosion resistance. As a vital component for robust and secure infrastructure, TOBO pipes guarantee consistent performance and extended service life, effectively resisting harsh chemicals, high pressure, and severe operating environments to maintain stable and efficient operations.

1. Product Description

TOBO super duplex stainless steel pipes are high-performance tubular products developed for harsh operating conditions. Produced from alloys including UNS S32750 and S32205, they feature a well-balanced austenitic-ferritic microstructure. This optimized material structure is obtained through precise thermo-mechanical treatment and strictly controlled chemical composition, creating a piping solution that reliably addresses both extreme mechanical loads and aggressive corrosive environments.

2. Key Parameters

These pipes are manufactured in full compliance with ASTM A790/A928 (US standard) and DIN 17456 (German standard) for grade 1.4410 (X2CrNiMoN25-7-4). They feature a minimum yield strength of 550 MPa and a tensile strength ranging from 750 to 800 MPa. Offered in a full range of diameters and wall thicknesses in line with standard schedules, they can be provided in various lengths and customized end treatments to meet specific connection needs.

3. Product Applications

They are mainly applied in industries where material performance is critical. Major application areas cover offshore oil and gas platforms (process piping, risers, flowlines), chemical tankers and shipbuilding, pulp and paper production, as well as industrial heat exchangers and condensers. They are also widely adopted in geothermal power facilities and modern chemical processing reactors.

4. Product Advantages

The main benefit is their excellent cost-performance compared to nickel alloys and conventional stainless steels, delivering comparable corrosion resistance with higher mechanical strength. They offer outstanding resistance to erosion-corrosion and fatigue. Their high strength enables lighter, more cost-effective system designs by allowing reduced wall thickness. In addition, they exhibit good weldability and formability with proper processes, ensuring high flexibility for various project requirements.

5. Product Functionality

The core function of these pipes is to provide a safe, durable, and low-maintenance channel for demanding fluid transport. They are engineered to preserve structural integrity, avoiding expensive leaks and unplanned downtime. By maintaining stable flow in critical systems, they directly enhance operational safety, environmental protection, and long-term project economics, offering a heavy-duty solution for the most challenging industrial fluid 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