S32205 S32750 ASTM A790 Duplex Steel Pipe Annealed Pickled Surface

S32205 S32750 ASTM A790 Duplex Steel Pipe Annealed Pickled Surface

What Makes MTSCO Your Trusted Partner?

MTSCO is dedicated to providing high-quality stainless steel and special alloy piping solutions for global industrial clients. Our core factory, HUIXN PIPE, specializes in seamless pipe manufacturing, equipped with advanced production facilities and certified by ISO and PED. MTSCO offers one-stop services from production and inspection to logistics, with significant advantages in duplex steel and nickel alloys. We possess deep project delivery experience; our products are widely used in global Oil & Gas and Chemical EPC projects and have passed strict end-user acceptance. If you have similar project requirements, please contact us for a customized solution.

Inspection Methods

Inspection is critical for ASTM A790 duplex steel pipes. We execute strict Non-Destructive Testing (NDT), including Eddy Current (ET) and Ultrasonic Testing (UT), to detect internal defects. Additionally, every pipe undergoes Hydrostatic to verify pressure-bearing capacity. Our physical and chemical laboratory conducts tensile, hardness, and intergranular corrosion tests on samples. Before shipment, MTSCO’s QC team performs 100% PMI testing and dimensional checks, ensuring every pipe delivered to the client is zero-defect.

Specifications Of 2205/2507 Seamless Pipe

What are the characteristics of 2507/2205?

S32205 and S32750 duplex steels combine the dual advantages of austenite and ferrite, offering a yield strength approximately twice that of standard austenitic stainless steel. S32750 Super Duplex features higher Chromium and Molybdenum content, resulting in a higher Pitting Resistance Equivalent Number (PREN). It exhibits excellent resistance to Stress Corrosion Cracking (SCC) in chloride-rich environments. MTSCO strictly controls raw material sourcing to ensure the chemical composition and mechanical properties of every batch meet standards, providing a high-quality foundation for subsequent processing.

Where Can Our Seamless Pipe Perform?

S32205 and S32750 seamless pipes are widely used in industrial sectors demanding extreme corrosion resistance and high strength.

·Oil & Gas Industry: Used in subsea pipelines, heat exchangers, and extraction equipment to resist acidic gas corrosion.

·Desalination & Marine Engineering: Excellent resistance to chloride ion corrosion makes them ideal for seawater treatment systems.

·Chemical Processing: Used in pressure vessels, storage tanks, and piping systems handling organic acids and chlorides.

·Pollution Control Systems: Applied in absorbers and spray systems within Flue Gas Desulfurization (FGD) units.

MTSCO has extensive global project service experience. Our piping products have been successfully applied in numerous major international EPC projects, meeting rigorous end-user acceptance standards.

FAQ

Q1: What are the main application differences between S32205 and S32750?

A1: S32205 is a standard duplex steel, offering high cost-effectiveness for most corrosive environments. S32750 is a super duplex steel with superior strength and corrosion resistance, designed for extreme chloride or acidic conditions. MTSCO stocks billets for both grades, allowing for flexible production scheduling based on your specific operational requirements.

Q2: What is the maximum length of seamless pipe you can supply?

A2: We supply a wide range of sizes. Beyond standard lengths, thanks to the advanced equipment at our holding factory, we can provide extra-long pipes up to 25 meters. This capability helps reduce the number of weld joints in your project, significantly enhancing overall system reliability.

Q3: How do you ensure product quality matches the description?

A3: MTSCO implements full quality traceability from raw materials to finished products. We conduct PMI test, mechanical testing, and Ultrasonic/Eddy Current test. We welcome clients to appoint third-party inspection agencies (TPI) such as SGS or TUV. We are committed to "Zero Defect" delivery.