1. Product Description
TOBO Super Duplex Stainless Steel Pipes are available in both seamless and welded execution, produced from alloys such as UNS S32750. This high-performance material features a dual-phase microstructure that combines the advantageous characteristics of both phases. The outcome is a product that excels in mechanical strength and durability against a broad range of corrosive substances, positioning it as a top-tier solution for demanding engineering applications.
2. Key Parameters
Our products comply with major international standards, including ASTM A790 (ASME SA790) and the German standard DIN EN 10216‑5 for material grade 1.4517 (equivalent to UNS S32750). Typical mechanical properties include a minimum tensile strength of 800 MPa, a minimum yield strength of 550 MPa, and excellent impact resistance. We offer a full selection of sizes, schedules (wall thicknesses), and customizable end configurations to satisfy diverse project requirements.
3. Product Applications
These high-performance pipes are essential for industries where operational reliability is critical. Main applications cover offshore and subsea oil and gas systems, chemical and petrochemical facilities, seawater desalination plants, environmental protection and flue gas treatment systems, and marine engineering. They are particularly suitable for transporting chloride-containing media, acidic solutions, and other highly corrosive process fluids.
4. Product Advantages
The most prominent benefit is their excellent resistance to pitting and crevice corrosion, supported by a high PREN (Pitting Resistance Equivalent Number) above 40. They provide nearly twice the yield strength of conventional austenitic stainless steels such as 316L, enabling thinner wall designs and potential weight reduction. In addition, they deliver outstanding resistance to stress corrosion cracking, maintaining structural stability under high stress in corrosive environments.
5. Product Functionality
The primary function of TOBO Super Duplex Pipes is to ensure safe, stable, and long‑distance transportation of highly corrosive and high‑pressure fluids. Designed to preserve structural integrity under extreme thermal and mechanical loads, they effectively reduce downtime, maintenance costs, and the risk of sudden failure. This leads to improved operational safety, lower total ownership cost, and higher efficiency for heavy‑duty industrial processes.
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
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