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SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance

Categories Duplex Stainless Steel Tube
Brand Name: SPEZILLA
Model Number: Seamless Tube
Certification: ISO9001:2008, PED 97/23/EC
Place of Origin: CHINA
MOQ: Negotiation
Price: Negotiation
Payment Terms: T/T or L/C
Supply Ability: 1000 TONS / MONTH
Delivery Time: 25 DAYS
Materials: Duplex Steel UNS S32507
Product Name: Duplex Stainless Steel Tube
Standard: ASME SA789
O.D.: 5/8"-2"
W.T.: BWG18-BWG14
Length MAX: 12000MM Max.
Pipe Finish: TIG Welded
Type: Welded
Shape: Round
Surface: Bright Annealed
Application: Heat exchanger
Package: Wooden case
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    SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance

    Super Duplex Stainless Steel 2507 ASTM A789 Duplex Steel Tube Annealed

    Super Duplex tubing (2507) is made from a Duplex stainless steel, developed as a result of the growing need to solve corrosion problems in Sweden’s sulfite paper industry in the early twentieth century. As the name implies, Duplex alloys are a group of stainless steels – including Duplex, Lean Duplex, 25-Chrome and Super Duplex – with roughly equal portions of austenite and ferrite steel. The chemical composition improves intergranular and pitting corrosion resistance.

    Super Duplex 2507 tubing (S32750, S32760) has excellent general corrosion resistance, including excellent resistance to stress corrosion cracking, a tremendous resistance to pitting corrosion and a high resistance to crevice corrosion. 2507 tubing also provides high tensile and impact strength, along with a low coefficient of thermal expansion but high thermal conductivity and good weldability.


    S32750 Standard Specification:

    StandardASTM A789, ASME SA789
    Equivalent StandardsDIN 17458, GOST 9941-81, GOST 9940-81, EN 10216-5, ASTM A790, ASME SA790, DIN 17456
    Equivalent MaterialsX2CrNiMoN25-7-4, 1.4410, SAF2507, F53
    Related Productsstainless steel tube, stainless steel pipe, heat exchanger steel tube, ASTM A789


    • High resistance to chloride stress corrosion cracking
    • Chloride pitting and crevice corrosion resistance superior to 317L stainless
    • Good general corrosion resistance
    • High strength
    • Good sulfide stress corrosion resistance
    • Useful up to 600°F


    • Chemical process vessels, piping, and heat exchangers
    • FGD scrubber systems
    • Pulp mill digesters, bleach washers, chip presteaming vessels
    • Food process equipment
    • Oil field piping, heat exchangers

    ASTM A789 S32750 (SAF2507) Stainless Steel Tubes Chemical Composition

    C %Si %Mn %P %S %Cr %Ni %Mo %N %Cu %
    0.03 max0.8 max1.2 max0.035 max0.02 max24.0-26.06.0-8.03.0-5.00.24-0.320.50 max

    ASTM A789 S32750(SAF2507) Stainless Steel Pipe Mechanical Properties

    Tensile Strength, MpaYield Strength, MPaElongation, %Hardness, HB
    800 min550 min15 min310 max

    Chemical Compositions:

    Chemical Composition (%) Duplex Stainless Steel Pipe
    UNS DesignationS31803S32205
    Carbon (C) max.0.0300.030
    Manganese (Mn) max.2.002.00
    Phosphorus (P) max.0.0300.030
    Sulfur (S) max.0.0200.020
    Silicon (Si) max.1.001.00
    Chromium (Cr)21.0 - 23.022.0 - 23.0
    Nickel (Ni)4.5 - 6.54.5 - 6.5
    Molybdenum (Mo)2.5 - 3.53.0 - 3.5
    Nitrogen (N)0.08 - 0.200.14 - 0.20
    Iron (Fe)BalanceBalance

    Product Tags:

    super duplex pipe


    duplex ss pipe

    China SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance factory
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