S275JR Square TubeEN 10219 · ASTM A554 / EN 10219 · Manufacturer, stockist & exporter, India
EN 10025-2 S275JR · W.Nr 1.0044
An S275JR square tube is square hollow section, for use with S275JR service. S275JR itself is a pipe or plate specification, so the matching square tube is made to EN 10219 square & rectangular sections — which is what we supply for S275JR lines. Square tube is used for frames, handrails, architecture and structures.
- EN 10219
- ASTM A554 / EN 10219
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an S275JR Square Tube?
- What it is
- Square hollow section
- Material
- EN 10219 square & rectangular sections
- Dimensions
- ASTM A554 / EN 10219
- Grade
- S275JR
- Best at
- General structures, frames and fabrication
S275JR Square Tube Specification
| Product | S275JR Square Tube |
|---|---|
| Material standard | EN 10219 square & rectangular sections |
| Dimensional standard | ASTM A554 / EN 10219 |
| Sizes | OD × wall to order |
| Length | Random, double random or cut lengths |
| Testing | Chemical & mechanical per heat · NDT · impact where specified |
| Documents | EN 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.
S275JR Square Tube: Why S275JR for square tubes
Square tube is used for frames, handrails, architecture and structures. In S275JR, 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 | Carbon steel tubulars carry most hydrocarbon and utility service. S275JR is picked for general structures, frames and fabrication. |
|---|---|
| Typical service | Construction — Beams, frames and base plates. |
| Welding to carbon steel | Matching carbon or low-alloy filler is used; joints to stainless need ER309L |
| Matching filler | E7018 / ER70S-6 |
S275JR Square Tube Chemical Composition
| Element | Weight % |
|---|---|
| Carbon | 0.21 max (≤16 mm) |
| Manganese | 1.50 max |
| Phosphorus | 0.035 max |
| Sulphur | 0.035 max |
| Copper | 0.55 max |
| Nitrogen | 0.012 max |
S275JR Square Tube Mechanical Properties
| Minimum values | Value |
|---|---|
| Yield strength | 275 MPa (≤16 mm) |
| Tensile strength | 410 – 560 MPa |
| Elongation | 23% |
| Charpy impact | 27 J at +20 °C |
Full chemistry, properties and equivalents are on the S275JR grade page.
Standards on this page
S275JR Square Tubes for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiS275JR Square Tube — questions buyers ask
What finishes are available on square tube?
Mill finish, 180–320 grit polish and hairline, depending on grade.
Can S275JR square tubes be welded to carbon steel?
Yes — matching carbon or low-alloy filler is used; joints to stainless need ER309L.
Which standard covers S275JR square tubes?
The material is EN 10219 square & rectangular sections; 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 S275JR square tube?
The steel 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