Duplex 2205 No.1 Finish SheetASTM A240 · ASTM A480 · Manufacturer, stockist & exporter, India
UNS S32205 / S31803 · W.Nr 1.4462
A Duplex 2205 no.1 finish sheet is hot-rolled, annealed and pickled sheet, made from Duplex 2205 to ASTM A240. No.1 is a dull, rough finish for industrial use where appearance does not matter — tanks, chutes and heat-resisting parts.
- ASTM A240
- ASTM A480
- 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 No.1 Finish Sheet?
- What it is
- Hot-rolled, annealed and pickled sheet
- Material
- ASTM A240
- Dimensions
- ASTM A480
- Grade
- Duplex 2205 · UNS S32205
- Best at
- Strength with chloride resistance at a stainless-steel budget
Duplex 2205 No.1 Finish Sheet Specification
| Product | Duplex 2205 No.1 Finish Sheet |
|---|---|
| Material standard | ASTM A240 |
| Dimensional standard | ASTM A480 |
| Thickness | Below 4.76 mm (3/16") |
| Size | 1000 / 1219 / 1250 / 1500 × 2000 / 2438 / 2500 / 3000 mm or cut |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a No.1 Finish Sheet
No.1 is a dull, rough finish for industrial use where appearance does not matter — tanks, chutes and heat-resisting parts.
- Hot rolled, annealed, pickled
- Dull and rough
- Heavier gauges
More on choosing: No.1 finish sheet guide.
Duplex 2205 No.1 Finish Sheet: Why 2205 for no.1 finish sheets
No.1 is a dull, rough finish for industrial use where appearance does not matter — tanks, chutes and heat-resisting parts. 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 sheet saves weight through strength. Duplex 2205 is picked for strength with chloride resistance at a stainless-steel budget. |
|---|---|
| Typical service | Oil & gas — Flowlines, manifolds and topside piping. |
| Matching filler | ER2209 (AWS A5.9) |
Duplex 2205 No.1 Finish Sheet Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 22.0 – 23.0 |
| Nickel | 4.5 – 6.5 |
| Molybdenum | 3.0 – 3.5 |
| Nitrogen | 0.14 – 0.20 |
| Carbon | 0.030 max |
| Manganese | 2.00 max |
| Silicon | 1.00 max |
| Phosphorus | 0.030 max |
Duplex 2205 No.1 Finish Sheet Mechanical Properties
| Solution-annealed plate & sheet | Value |
|---|---|
| Tensile strength | 655 MPa · 95 ksi |
| Yield strength 0.2% | 450 MPa · 65 ksi |
| Elongation | 25% |
| Hardness | 293 HB max |
Full chemistry, properties and equivalents are on the Duplex 2205 grade page.
Other Duplex 2205 sheets
Duplex 2205 No.1 Finish Sheets for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiDuplex 2205 No.1 Finish Sheet — questions buyers ask
Where is No.1 finish used?
Industrial parts, tanks and heat-resisting components where surface appearance is not important.
Which standard covers Duplex 2205 no.1 finish sheets?
The material is ASTM A240; dimensions follow ASTM A480. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Duplex 2205 no.1 finish sheet?
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