Super Duplex 2507 No.1 Finish SheetASTM A240 · ASTM A480 · Manufacturer, stockist & exporter, India
UNS S32750 · W.Nr 1.4410
A Super Duplex 2507 no.1 finish sheet is hot-rolled, annealed and pickled sheet, made from Super Duplex 2507 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 Super Duplex 2507 No.1 Finish Sheet?
- What it is
- Hot-rolled, annealed and pickled sheet
- Material
- ASTM A240
- Dimensions
- ASTM A480
- Grade
- Super Duplex 2507 · UNS S32750
- Best at
- Seawater and high-chloride service where strength also matters
Super Duplex 2507 No.1 Finish Sheet Specification
| Product | Super Duplex 2507 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.
Super Duplex 2507 No.1 Finish Sheet: Why 2507 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 Super Duplex 2507, 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. Super Duplex 2507 is picked for seawater and high-chloride service where strength also matters. |
|---|---|
| Typical service | Offshore & subsea — Seawater injection, firewater and subsea piping. |
| Matching filler | ER2594 (AWS A5.9) |
Super Duplex 2507 No.1 Finish Sheet Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 24.0 – 26.0 |
| Nickel | 6.0 – 8.0 |
| Molybdenum | 3.0 – 5.0 |
| Nitrogen | 0.24 – 0.32 |
| Copper | 0.50 max |
| Carbon | 0.030 max |
| Manganese | 1.20 max |
| Silicon | 0.80 max |
Super Duplex 2507 No.1 Finish Sheet Mechanical Properties
| Solution-annealed plate & sheet | Value |
|---|---|
| Tensile strength | 795 MPa · 116 ksi |
| Yield strength 0.2% | 550 MPa · 80 ksi |
| Elongation | 15% |
| Hardness | 310 HB max |
Full chemistry, properties and equivalents are on the Super Duplex 2507 grade page.
Other Super Duplex 2507 sheets
Super Duplex 2507 No.1 Finish Sheets for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSuper Duplex 2507 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 Super Duplex 2507 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 Super Duplex 2507 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