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Super Duplex Stainless Steel Pipe / Tube ASME SA789/ SA790 S31803 NPS 1/8" ~ 30

Categories Duplex Stainless Steel Pipe
Model Number: Nominal Size (Inches) 1/8"~30"
Place of Origin: CHINA
MOQ: 1 SET
Delivery Time: 10-12 WEEKS
Price: Negotiation
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    Super Duplex Stainless Steel Pipe / Tube ASME SA789/ SA790 S31803 NPS 1/8" ~ 30

    (Super) Duplex Stainless Steel

    Duplex stainless steel (DSS) is featured with structure of two phases (α and γ) and has characteristics of both ferritic and austenitic stainless steel. It has good corrosion resistance and high strength. It is alloyed with 18%-28% Cr and 3%-10% Ni in the condition of low C. Some steels also contain the alloy elements such as Mo, Cu, Nb, Ti and N, etc.

    Comparing with ferritic stainless, duplex stainless steel has higher plasticity, ductility and better intergranular corrosion resistance and weldability. It keeps same 475℃ brittleness with ferritic stainless and high thermal conductivity. Duplex has improved yield strength, resistance to intergranular corrosion, stress corrosion, corrosion fatigue and abrasion & corrosion compared with austenitic stainless steel.


    Grades:S31803/S32205, S32750, S32760, S31500, 32001, S32003, S32304


    Specifications:

    ASTM A789 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

    ASTM A790 (ASME SA790) Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

    ASTM A928 (ASME SA928) Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal


    Features:

    1.Superior resistance to general and local corrosion, especially to stress corrosion, pitting corrosion, crevice corrosion, corrosion fatigue and abrasion & corrosion.
    2.Good weldability
    3.Good mechanical properties
    4.Excellent intergranular corrosion resistance
    5.High cost-effectiveness, long life time


    Application:

    The Duplex stainless steel (DSS) pipes & tubes have been widely used in petrochemical, gas & oils ,boilers, nuclear power,machinery, shipping industry and water industry, etc.


    Buy Super Duplex Stainless Steel Pipe / Tube ASME SA789/ SA790 S31803  NPS 1/8" ~ 30 at wholesale prices
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