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Pipes & Tubes · Square tube · ASTM A554

Super Duplex S32760 Square TubeASTM A554 · ASTM A554 / EN 10219 · Manufacturer, stockist & exporter, India

UNS S32760 · W.Nr 1.4501

A Super Duplex S32760 square tube is square hollow section, made from Super Duplex S32760 to ASTM A554 (ornamental) · A312 / A790 for pressure. Square tube is used for frames, handrails, architecture and structures.

  • ASTM A554
  • ASTM A554 / EN 10219
  • EN 10204 3.1 / 3.2
  • Export packing

Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026

Price & availability

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Quotations within one working day, in INR or USD.

What is a Super Duplex S32760 Square Tube?

What it is
Square hollow section
Material
ASTM A554 (ornamental) · A312 / A790 for pressure
Dimensions
ASTM A554 / EN 10219
Grade
Super Duplex S32760 · UNS S32760
Best at
Seawater firewater, injection and offshore piping
ODWT L — random / cut lengthbevel 37.5° (BE) or plain end
TYPE · SQUARE TUBEMATL · ASTM A554DIM · ASTM A554 / EN 10219GRADE · S32760

Super Duplex S32760 Square Tube Specification

ProductSuper Duplex S32760 Square Tube
Material standardASTM A554 (ornamental) · A312 / A790 for pressure
Dimensional standardASTM A554 / EN 10219
SizesOD × wall to order
LengthRandom, double random or cut lengths
TestingPMI · dimensional · NDT and IGC on request
DocumentsEN 10204 3.1 · 3.2 with third-party inspection

When to Choose a Square Tube

Square tube is used for frames, handrails, architecture and structures.

  • Square hollow section
  • Polished or mill finish
  • Cut lengths

More on choosing: Square tube guide.

Super Duplex S32760 Square Tube: Why S32760 for square tubes

Square tube is used for frames, handrails, architecture and structures. In Super Duplex S32760, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.

Why this gradeDuplex tubulars combine strength and chloride resistance. Super Duplex S32760 is picked for seawater firewater, injection and offshore piping.
Typical serviceOffshore — Firewater and seawater piping.
Welding to carbon steelER2209 or ER309L(Mo) is used when joining it to carbon steel, under a qualified WPS
Matching fillerER2594 · Zeron 100X
Sour serviceListed in NACE MR0175 / ISO 15156-3 within its limits — state it on the order

Super Duplex S32760 Square Tube Chemical Composition

ElementWeight %
Chromium24.0 – 26.0
Nickel6.0 – 8.0
Molybdenum3.0 – 4.0
Nitrogen0.20 – 0.30
Copper0.50 – 1.00
Tungsten0.50 – 1.00
Carbon0.030 max
Manganese1.00 max

Super Duplex S32760 Square Tube Mechanical Properties

Solution-annealed plateValue
Tensile strength750 MPa · 109 ksi
Yield strength 0.2%550 MPa · 80 ksi
Elongation25%
Hardness270 HB max

Full chemistry, properties and equivalents are on the Super Duplex S32760 grade page.

Super Duplex S32760 Square Tubes for export

FOB / CIF · Nhava Sheva (JNPT), Mumbai

Super Duplex S32760 Square Tube — questions buyers ask

What finishes are available on square tube?

Mill finish, 180–320 grit polish and hairline, depending on grade.

Can Super Duplex S32760 square tubes 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 Super Duplex S32760 square tubes?

The material is ASTM A554 (ornamental) · A312 / A790 for pressure; dimensions follow ASTM A554 / EN 10219. Always state both on your purchase order, with the edition if your project specifies one.

What decides the price of a Super Duplex S32760 square tube?

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.

Reviewed by the technical team, Kanak Steel & Engineering Co.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026
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