Duplex 2205 Welded PipeASTM A790 · ASME B36.19 · Manufacturer, stockist & exporter, India
UNS S32205 / S31803 · W.Nr 1.4462
A Duplex 2205 welded pipe is pipe formed from plate or strip and welded along its length, made from Duplex 2205 to ASTM A790 · A928. Welded (ERW / EFW) pipe is economical in larger diameters and thinner walls, and accepted by most codes with the right testing.
- ASTM A790
- ASME B36.19
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is a Duplex 2205 Welded Pipe?
- What it is
- Pipe formed from plate or strip and welded along its length
- Material
- ASTM A790 · A928
- Dimensions
- ASME B36.19 · B36.10
- Grade
- Duplex 2205 · UNS S32205
- Best at
- Strength with chloride resistance at a stainless-steel budget
Duplex 2205 Welded Pipe Specification
| Product | Duplex 2205 Welded Pipe |
|---|---|
| Material standard | ASTM A790 · A928 |
| Dimensional standard | ASME B36.19 · B36.10 |
| Sizes | NPS ⅛" – 24", Sch 5S – XXS |
| Length | Random, double random or cut lengths |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Welded Pipe
Welded (ERW / EFW) pipe is economical in larger diameters and thinner walls, and accepted by most codes with the right testing.
- ERW and EFW
- Larger diameters available
- Weld bead removed or flush
More on choosing: Welded pipe guide.
Duplex 2205 Welded Pipe: Why 2205 for welded pipes
Welded (ERW / EFW) pipe is economical in larger diameters and thinner walls, and accepted by most codes with the right testing. In Duplex 2205, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Duplex tubulars combine strength and chloride resistance. Duplex 2205 is picked for strength with chloride resistance at a stainless-steel budget. |
|---|---|
| Typical service | Oil & gas — Flowlines, manifolds and topside piping. |
| Welding to carbon steel | ER2209 or ER309L(Mo) is used when joining it to carbon steel, under a qualified WPS |
| Matching filler | ER2209 (AWS A5.9) |
| Sour service | Listed in NACE MR0175 / ISO 15156-3 within its limits — state it on the order |
Duplex 2205 Welded Pipe Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Nickel | As specified |
| Molybdenum | As specified |
| Nitrogen | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A240 for UNS S32205.
Duplex 2205 Welded Pipe Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
| Hardness | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A240 for UNS S32205 — Solution-annealed plate & sheet.
Full chemistry, properties and equivalents are on the Duplex 2205 grade page.
Duplex 2205 Welded Pipes for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiDuplex 2205 Welded Pipe — questions buyers ask
Is welded pipe accepted in pressure piping?
Yes, under ASME B31.3 with the weld joint factor for the specification and testing performed.
Can Duplex 2205 welded pipes be welded to carbon steel?
Yes — ER2209 or ER309L(Mo) is used when joining it to carbon steel, under a qualified WPS.
Which standard covers Duplex 2205 welded pipes?
The material is ASTM A790 · A928; dimensions follow ASME B36.19 · B36.10. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Duplex 2205 welded pipe?
The alloy price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026