S275JR Hollow SectionsEN 10210 · Manufacturer, stockist & exporter, India
Also sold as EN 10025-2 S275JR · W.Nr 1.0044 · Structural steel
S275JR hollow sections are supplied hot-finished to EN 10210 and cold-formed to EN 10219, in circular, square and rectangular shapes. It is a non-alloy structural steel, chosen for general structures, frames and fabrication. Kanak Steel & Engineering Co. supplies it with EN 10204 3.1 mill certificates from Mumbai to buyers across India, the Gulf, South-East Asia, South America, Europe, the UK and the USA.
- Stock & mill supply
- EN 10204 3.1 / 3.2
- Mill test certificates
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is S275JR Hollow Sections?
S275JR hollow sections is a non-alloy structural steel supplied as hollow sections to EN 10210 hot-finished hollow sections. Buyers specify it for general structures, frames and fabrication. It is also sold as EN 10025-2 S275JR, W.Nr 1.0044, Structural steel.
- What it is
- Non-alloy structural steel
- Seamless
- EN 10210 hot-finished hollow sections
- Welded
- EN 10219 cold-formed hollow sections
- Sizes
- NPS ⅛" – 24" · OD tube to order
- Schedules
- 5S · 10S · 40S · 80S · 160 · XXS
- Best at
- General structures, frames and fabrication
S275JR Hollow Sections Specification & Sizes
| Seamless pipe | EN 10210 hot-finished hollow sections |
|---|---|
| Welded pipe | EN 10219 cold-formed hollow sections |
| Tube | EN 10219 square & rectangular sections |
| Grade | S275JR |
| Size & schedule | Circular, square and rectangular sections to EN 10210 / EN 10219 dimension tables |
| Length | Single random, double random, or cut lengths |
| Ends | Plain end · bevelled end (for welding) · threaded |
| Testing | Hydrostatic · NDT · chemical & mechanical per heat · impact tests where specified |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
S275JR Pipe: Seamless, Welded or Tube?
Three different specifications cover S275JR tubular products. Pick the route first — it decides price, test requirements and lead time. General requirements (tolerances, hydrostatic or electric testing) come from ASTM A530. Schedules, the −12.5% wall tolerance and the B31.3 wall formula are explained in the pipe guide.
| Route | Specification | Use it for |
|---|---|---|
| Seamless pipe | EN 10210 hot-finished hollow sections | Pressure and critical service; no weld seam to inspect. |
| Welded pipe | EN 10219 cold-formed hollow sections | Economical in larger diameters and thinner walls where the code allows it. |
| Tube | EN 10219 square & rectangular sections | Heat exchangers and instruments; ordered by exact OD × wall. |
S275JR Hollow Sections 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 Hollow Sections 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 |
Density & Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting range | 1420 – 1530 °C |
| Magnetic | Magnetic |
S275JR Equivalent Grades
Values follow EN 10025-2 for S275JR. Always check against the edition named on your purchase order.
S275JR Pipe Weight Chart (kg/m)
Weight per metre (kg/m) = (OD − WT) × WT × 0.02466, with OD and wall thickness in mm. The factor comes from S275JR's density of 7.85 g/cm³.
Example: 4" Sch 40S (114.30 × 6.02 mm)
(114.30 − 6.02) × 6.02 × 0.02466 = 16.08 kg/m
| NPS | OD mm | Sch 10S kg/m | Sch 40S kg/m |
|---|---|---|---|
| ½" | 21.34 | 1.00 | 1.27 |
| 1" | 33.40 | 2.09 | 2.50 |
| 2" | 60.33 | 3.93 | 5.44 |
| 3" | 88.90 | 6.46 | 11.29 |
| 4" | 114.30 | 8.37 | 16.08 |
| 6" | 168.28 | 13.83 | 28.26 |
| 8" | 219.08 | 19.97 | 42.55 |
Six-digit Harmonized System heading (iron and steel, chapter 72–73). Your country adds its own digits — confirm with your customs broker. All HS codes.
S275JR Hollow Sections Price — What Decides It
Two quotes for "S275JR hollow sections" can differ by 20% and both be fair. We quote S275JR hollow sections per kg for full sizes and per piece for cut sizes. These six things move the price per kg, so you can compare offers like for like.
S275JR Hollow Sections Applications
S275JR is specified when the cheaper grade will not survive the service but a higher alloy would be more than the job needs. These are the jobs our buyers use it for.
How your S275JR hollow sections order runs
- 01Enquiry review — we confirm size, standard edition and documents against your MR or drawing.
- 02Heat selection & PMI — the mill certificate is checked and material is PMI-tested before processing.
- 03Processing — cutting, machining or bevelling to your specification, with heat numbers marked.
- 04Inspection — your third-party inspector witnesses, or we share photos and test reports.
- 05Packing & dispatch — seaworthy packing from Nhava Sheva (JNPT), Mumbai, FOB or CIF, documents sent before the vessel sails.
Welding & Fabricating S275JR Hollow Sections
S275JR welds by all common arc processes. A few points our buyers ask about:
| Matching filler | E7018 / ER70S-6 |
|---|---|
| Over-alloyed filler | — |
| Preheat | As required by the WPS and code for the thickness |
| Cutting | Thermal or abrasive cutting; grind off heat-tinted edges before welding |
Follow your approved WPS; this is general guidance.
How to Order S275JR Hollow Sections: RFQ Checklist
Get an accurate quote the first time. Copy this list into your enquiry:
- Seamless or welded, and the standard
- NPS and schedule (or OD × wall for tube)
- Length — random or cut, and number of lengths
- End finish — plain, bevelled or threaded
- Certificate type and extra tests
- Delivery port, Incoterm and required date
S275JR hollow sections for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiS275JR hollow sections — questions buyers ask
Is S275JR the same as EN 10025-2 S275JR?
Yes. EN 10025-2 S275JR, W.Nr 1.0044, Structural steel all refer to the same material, and hollow sections is ordered to EN 10210 hot-finished hollow sections whichever name is on the enquiry.
What is the difference between S275JR pipe and tube?
Pipe is ordered by nominal pipe size and schedule, for carrying fluids. Tube is ordered by exact outside diameter and wall, for heat exchangers and instruments, and is held to tighter tolerances.
Seamless or welded S275JR pipe — which should I buy?
Seamless (EN 10210 hot-finished hollow sections) is the default for pressure and critical service. Welded (EN 10219 cold-formed hollow sections) is cheaper in larger diameters and thinner walls and is accepted where the design code allows it.
What is the wall-thickness tolerance on S275JR pipe?
Seamless pipe is normally allowed −12.5% on nominal wall under its general-requirements standard (ASTM A530). Allow for it in the pressure calculation or order on minimum wall.
Can S275JR pipe be welded to carbon-steel pipe?
Yes, with the right filler: matching carbon or low-alloy filler is used; joints to stainless need ER309L. Follow a qualified WPS.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026