Duplex Steel Seamless Pipe

Short Description:

Type: Duplex Steel Seamless Pipe, Duplex Steel Seamless Tube
Spec.: Outer Diameter: up to 12″ NB. Thickness: SCH XSS
Standard: ASTM A790, ASTM A789
Grade: S31803, S32205, S32750, S32760
Surface: Annealed, Pickling, Polished
Packing: Waterproof paper wrapped, Packed in wooden cabins.


Product Detail

Size Chart

Application

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Details of Duplex Steel Seamless Pipe

What is a duplex steel seamless pipe?

Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. The picture shows the yellow austenitic phase as “islands” surrounded by the blue ferritic phase. When duplex stainless steel is melted it solidifies from the liquid phase to a completely ferritic structure. Hot-rolled duplex stainless steel pipe and cold-drawn duplex stainless pipe made up of duplex stainless steel pipe. Duplex steel seamless pipe is widely used in the high-precision requirements project. Duplex steel seamless pipes are both strong and highly corrosion-resistant. There are various grades of duplex stainless steel pipes with different mechanical properties.

Chemical Composition of Duplex Steel Seamless Pipe

C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 - 3.5 22.0 - 23.0 0.03 4.5 - 6.5 0.14 - 0.2 Bal

Mechanical Characteristics of Duplex Steel Seamless Pipe

Pipe Density Pipe Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi - 80000 , MPa - 550 Psi - 116000 , MPa - 800 15 %

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  • Size Chart of Duplex Steel Seamless Pipe

    NPS Outside Diameter Wall Thickness
    in mm in mm
    1/2″ 0.84 21 0.109 2.769
    0.147 3.734
    3/4″ 1.05 27 0.113 2.87
    0.154 3.912
    1″ 1.315 33 0.133 3.378
    0.179 4.547
    1 1/4″ 1.66 42 0.14 3.556
    0.191 4.851
    1 1/2″ 1.9 48 0.145 3.683
    0.2 5.08
    2″ 2.375 60 0.154 3.912
    0.218 5.537
    2 1/2″ 2.875 73 0.203 5.516
    0.276 7.01
    3″ 3.5 89 0.216 5.486
    0.3 7.62
    4″ 4.5 114 0.237 6.02
    0.337 8.56
    6″ 6.625 168 0.188 4.775
    0.203 5.516
    0.219 5.563
    0.25 6.35
    0.28 7.112
    0.312 7.925
    0.375 9.525
    0.432 10.973
    0.5 12.7
    8″ 8.625 219 0.188 4.775
    0.203 5.156
    0.219 5.563
    0.25 6.35
    0.277 7.036
    0.322 8.179
    0.375 9.525
    0.406 10.312
    0.5 12.7
    10″ 10.75 273 0.188 4.775
    0.219 5.563
    0.25 6.35
    0.307 7.798
    0.344 8.738
    0.365 9.271
    0.438 11.125
    0.5 12.7
    0.594 15.088
    12″ 12.75 324 0.188 4.775
    0.219 5.563
    0.25 6.35
    0.281 7.137
    0.312 7.925
    0.375 9.525
    0.406 10.312
    0.5 12.7
    0.562 14.275
    14″ 14 356 0.188 4.775
    0.219 5.563
    0.25 6.35
    0.281 7.137
    0.312 7.925
    0.375 9.525
    0.438 11.125
    0.5 12.7
    0.625 15.875
    16” 16 406 0.188 4.775
    0.219 5.563
    0.25 6.35
    0.281 7.137
    0.312 7.925
    0.344 8.738
    0.375 9.525
    0.438 11.125
    0.5 12.7
    18″ 18 457 0.219 5.563
    0.25 6.35
    0.281 7.137
    0.312 7.925
    0.375 9.525
    0.438 11.125
    0.5 12.7
    0.562 14.275
    0.625 15.875
    20″ 20 508 0.25 6.35
    0.282 7.163
    0.312 7.925
    0.375 9.525
    0.438 11.125
    0.5 12.7
    0.594 15.088
    0.625 15.875
    0.688 17.475
    24″ 24 610 0.25 6.35
    0.281 7.137
    0.312 7.925
    0.375 9.525
    0.438 11.125
    0.5 12.7
    0.625 15.875
    0.688 17.475
    0.75 19.05
    30″ 30 762 0.25 6.35
    0.281 7.137
    0.312 7.925
    0.375 9.525
    0.438 11.125
    0.5 12.7
    0.625 15.875
    0.688 17.475
    0.75 19.05
    36″ 36 914 0.25 6.35
    0.281 7.137
    0.312 7.925
    0.375 9.525
    0.438 11.125
    0.5 12.7
    0.625 15.875
    0.688 17.475
    0.75 19.05
    42″ 42 1067 0.312 7.925
    0.375 9.525
    0.5 12.7
    0.75 19.05
    48″ 48 1219 0.375 9.525
    0.438 11.125
    0.5 12.7
    0.75 19.05
    0.875 22.225

    Application of Duplex Steel Seamless Pipe

    - Oil and Gas Pipeline
    - Chemical Industry
    - Plumbing
    - Heating
    - Water Supply Systems
    - Power Plant
    - Paper & Pulp Industry
    - General Purpose Applications
    - Fabrication Industry
    - Food Processing Industry
    - Steel Structural