Duplex stainless steel materials like 2205 and 2507 offer exceptional strength and corrosion resistance for critical applications. Among these, Duplex 2507 stands out with its high chromium, nickel, and molybdenum content, providing superior protection against various types of corrosion.
Duplex 2205, while similar, has lower overall corrosion resistance compared to 2507 due to its reduced elemental content.
Super duplex 2507 is particularly resistant to chloride stress corrosion cracking and retains high thermal conductivity and low thermal expansion properties. It also shows excellent resistance to organic acids such as formic and acetic acid.
In applications involving dilute sulfuric acid mixed with chloride ions, Duplex 2507 outperforms 904L stainless steel, which is specifically designed for pure sulfuric acid resistance. Additionally, 2507 can withstand dilute hydrochloric acid, a substance that severely corrodes 316L stainless steel.
Common uses for Duplex 2507 include seawater-related applications, chemical processing, and other chloride-rich environments.
Duplex 2205 and 2507 Stainless Steel Filter Elements
The availability of wire and mesh limits the micron ratings for 2507 wire mesh and sintered wire mesh to options like 50, 100, 150, and 200 microns. For other micron ratings, please inquire with us directly.
Primary filter elements made from Duplex 2507 stainless steel include perforated metal sheets, tubes, and wedge wire filter elements. Filter tube screens, especially for automatic self-cleaning filters, are popular choices for various filtration needs. Additionally, basket strainers and filter cartridges are common in demanding applications that involve handling tough chemicals.
