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            High Alloy Materials
            Super Duplex Stainless



            Duplex Stainless Steels Available

            Haohua Industrysupplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.


            Duplex Stainless Steel Overview

            Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.

            Today, modern duplex stainless steels can be divided into three groups:
            Lean Duplex such as LDX2101
            Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
            Super Duplex such as Ferralium 255 and  Zeron 100 and LDX2507 

            Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications.  Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.

            What are the Characteristics of Duplex Stainless Steels?
            Very good resistance to uniform corrosion
            Very good resistance to pitting and crevice corrosion
            High resistance to stress corrosion cracking and corrosion fatigue
            High mechanical strength
            Good sulfide stress corrosion resistance
            Good abrasion and erosion resistance
            Good fatigue resistance high energy absorption
            Low thermal expansion
            Good weldability

            In what Applications are Duplex Stainless Steels® used?
            Oil and gas equipment
            Offshore technology
            Seawater desalination plants
            Chemical industry, especially when handling chlorides
            Flue-gas cleaning
            Desalination plants and seawater systems
            Pulp and paper industry
            Cargo tanks and pipe systems in chemical tankers
            Firewalls and blast walls on offshore platforms
            Storage tanks
            Pressure vessels, reactor tanks, and heat exchangers
            Rotors, impellers and shafts


            Friendly link: Stainless coils tubing | Titanium Alloy steel pipes | U tubes | Finned tubes | Ferritic Stainless Steel Pipes | Duplex Stainless steel pipes | Austenitic stainless steel pipes | Nickel Alloy steel pipes |
            Tel: 0086-512-58220050 Fax:0086-512-58810865 E-mail: sales@haopipe.com
            Add: No.17,Southeastern Avenue, Economic Development Zone (South Area),Zhangjiagang City, Jiangsu Province, China.