Duplex Pipe Fittings

Duplex Stainless Steel Buttweld Pipe Fittings

Duplex Pipe Fittings

Duplex Pipe Fittings are used in a host of applications such as the marine industries, oil and gas industries, aerospace industry, the ship building industry and in the chemical and food processing applications. The Duplex Steel Fittings can be of different types, grades, shapes and sizes. There are different specifications and standards that cover the different aspects of different duplex pipe fittings. Naman Pipe & Tubes is a leading supplier of the pipe fittings in all standard, super and lean duplex grades.

There are Duplex Steel Buttweld Fittings which are welded during manufacture so that they could be welded to the pipes without damage but with ease. The welded joints provide and extra strength while the duplex material avoids corrosion stress to the maximum. As a Duplex Fittings manufacturer we produce and sell, bends, elbows, crosses, couplings, unions, tees and caps. Our pipe fittings are manufactured by different seam and seamless technologies and are tested according to the international standards. We supply Duplex Weld Fittings that are useful in applications that require heavy welding with maximum corrosion resistance such as in the ship building and marine applications. Our ASTM A815 Duplex Stainless Steel Pipe Fittings made according to the buttweld pipe fitting standards. Please contact us for a full product catalog and price list.

Duplex Pipe Fittings Sizes

Seamless Butt Weld fittings

1/2" - 24" (DN15 - DN600)

Welded Butt Weld fittings

1/2" - 48" (DN15 - DN1200)

Thickness

SCH5S to SCH160

Manufacturing Standard

ASA / ANSI / ASME B16.9

Duplex Steel Fittings Specifications

Specifications ASTM A815 / ASME SA 815
Accordance to
EN 10204/3.1B, ASME/ANSI B16.9, MSS-SP-43, ASME B16.28
Type Fabricated / Seamless / Welded
Connection Welded, Flange, Welding, Clamp, Thread

Different Types of Duplex Steel Buttweld Fittings

Duplex Pipe Fittings

Duplex Pipe Fittings

  • Elbow
  • Tee
  • Eccentric Reducer
  • Concentric Reducer
  • Lateral Tee
  • Equal Tee
Duplex Steel Buttweld Fittings

Duplex Steel Buttweld Fittings

  • Long Stub End
  • End Cap
  • Equal Cross
  • 45 Degree Elbow
  • 90 Degree Elbow
  • Long & Short Radius Elbow

Duplex Weld Fittings Price in India

Types INR/ kg
DSS ELBOW-90 DEGREE BUTTWELD, ASME B16.9 INR 5,582
DSS ELBOW-45 DEGREE BUTTWELD, ASME B16.9 INR 5,545
DSS REDUCER- ECCENTRIC BUTTWELD, ASME B16.9 INR 5,575

Why Duplex Steel fittings are used in Oil and gas refining pipeline?

Oil and gas refineries deal with some of the corrosive and high temperature products and applications. These applications also transport expensive ingredients. There should be no leakage or breaking in the pipes or in the joints. And repairing in the middle of the process would cost a lot of downtime and operational cost. The duplex steels are some of the high temperature resistant and high hardness materials used in piping. They are strong and corrosion resistant because of the austenitic and ferritic structures in them. For these reasons, they are suitable and are used in oil and gas refineries.

Chemical Composition UNS S31803 / S32205 Buttweld Fittings

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 Strength & Properties of UNS S31803 / S32205 Pipe Fittings

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

UNS S31803 / S32205 Fittings Equivalent Grades

Alloy 2205 ASTM ASME WERKSTOFF NR. / EN
UNS S31803 ASTM A815 SA 815 1.4462
UNS S32205 ASTM A815 SA 815 1.4462