January 2026

Core Parameter Comparison The table below outlines the fundamental differences between 2205 and 2507 duplex steel flanges for a quick overview. Feature 2205 Duplex Steel Flange 2507 Duplex Steel Flange (Super Duplex) Key Alloy Composition​ Approx. 22% Chromium, 3% Molybdenum, 0.15-0.18% Nitrogen Approx. 25% Chromium, 4% Molybdenum, 0.24-0.32% Nitrogen Yield Strength​ ≥450 MPa ≥550 MPa […]

Top Global and Chinese Suppliers of Duplex Steel Flanges: From Industry Leaders to Niche Champions In demanding industrial environments, a reliable flange connection can determine the success or failure of an entire system. Duplex steel flanges, with their unique properties, have become the preferred choice in sectors like petrochemicals, offshore engineering, and nuclear power. 01

Duplex Steel Flanges: Superior Performance and Wide-Ranging Industrial Connection Solutions In harsh industrial environments, material selection often determines the success or failure of a project. Duplex steel flanges, as critical connecting components in modern industrial piping systems, have become the preferred material in demanding industrial environments such as petrochemicals, seawater treatment, and papermaking due to