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ASTM A789 UNS S31803 SMLS TUBE

    Type: Seamless, Welded
    OD: 1/2"-48"
    Thickness: SCH5-SCHXXS
    Length: 0-12M, Customized
    Process: Hot/Cold Rolled,Hot work,Cold drawn
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ASTMA789 S31803 duplex seamless tube, also duplex 2205 tube, are high-performance duplex stainless steel pipes that are widely used in various industrial applications.  HT PIPE Supply ASTM A789 S31803 seamless tube, UNS S31803 seamless tube, duplex 2205 seamless tube, 1.4462 seamless tube, 2205 seamless tube manufacturer, duplex 2205 tube suppliers, duplex 2205 tube, duplex 1.4462 seamless tube exporter in China.


ASTMA789 S31803 duplex seamless tube:
  •  Size range: O.D. 6-610mm, W.T. 1-35mm

  •  Length: Max. 22m

  •  Standard: ASTMA789, ASME SA789

  •  Grade: S31803


Duplex 2205 tube:

  • - Size range: O.D. 6-610mm, W.T. 1-35mm

  • - Length: Max. 22m

  • - Standard: ASTM A789, A790, and A928

  • - Grade: S32205, S31803


Duplex 2205 tube Specified Minimum Yield Strength

Duplex Stainless SteelS31803
Density7.805
Melting Range,℃1450 ℃
Elongation %25 min.
Tensile Strength (Mpa)655
Yield Strngth (Mpa)450
Hardness (Brinell)293 max


Duplex 2205 tube Features

Good sulfide stress corrosion cracking resistance

Useful up to 600°F

Higher heat conductivity and lower thermal expansion

High resistance to stress corrosion cracking, fatigue, and erosion

Outstanding and uniform resistance to pitting and crevice corrosion


ASTMA789 S31803 duplex seamless tube and duplex 2205 tube are widely used in various industrial applications such as: Boiler and Heatexchanger, Oil Tube, Fluid Tube, Gas Tube.


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