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Description: BBN steel is a well-known steel manufacturer and service provider in China, EN10025-2 S275J2 NON-ALLOY STRUCTURAL STEEL PLATE is our superior product, we are favored by customers with high quality, competitive price and excellent service
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| Quantity(Metric Tons) | 1 - 10 | 10 - 50 | >50 |
| Est. Time(days) | 5 | 10 | Negotiable |
EN 10025-2 S275J2 is a non-alloy structural steel — a 275 MPa-yield European grade in the structural-steel family that sits one rung above S235JR and one below S355J2. Its name is a specification: S is structural steel, 275 is the minimum yield strength in MPa (up to 16 mm), J2 is the impact toughness class — a Charpy V-notch test at −20 °C with a minimum of 27 J (longitudinal) — and the material number is 1.0145. It belongs to EN 10025-2, the part of the European structural-steel standard that covers non-alloy structural steels, so “non-alloy” is the correct description here — and the J2 impact class at −20 °C requires the steel to be fully killed and grain-refined, unlike the semi-killed S275JR.
S275J2 is supplied as plate, sheet, section and bar for welded and bolted structures in cold-climate service — buildings, bridges, machinery, storage tanks, agricultural and transport equipment and general fabrication that must survive sub-zero temperatures. The “J2” matters: it is the −20 °C toughness class, the right choice where the structure sees frost or winter exposure (for warmer duties, step down to S275J0 at 0 °C or S275JR at +20 °C). Because it is low-carbon with a carbon equivalent CEV of ≤ 0.40 %, it welds with ordinary consumables and normally needs no preheat in ordinary thicknesses.
What this page publishes, and what must be confirmed on the mill certificate when you enquire.
| Item | Specification |
|---|---|
| Executive Standard | EN 10025-2 (European standard for hot-rolled products of structural steels — Part 2: technical delivery conditions for non-alloy structural steels). |
| Steel Grade | S275J2 (material number 1.0145) |
| Steel Category | Non-alloy structural steel — the correct description for S275J2 per EN 10025-2 Part 2; the J2 class additionally requires a killed, grain-refined supply |
| Product Forms Covered | Steel Plate Sheet Section Bar hot-rolled plate and sheet on this page |
| Thickness Range | 1.5 – 680 mm (rolling range published by the mill; EN 10025-2 mechanical values are given up to 400 mm for S275) |
| Width Range | 1 000 – 4 000 mm |
| Length Range | 1 000 – 18 000 mm |
| Production Way | As-rolled (+AR) as standard; normalized (+N) and thermomechanically rolled (+M) offered — the condition is chosen with the order |
| Delivery Condition | +AR / +N / +M — see section 07 |
| Impact Requirement | -20 °C, ≥ 27 J longitudinal Charpy V-notch — this is what the “J2” grade guarantees |
| MOQ | 1 t small-batch orders supported |
| Lead Time by Quantity | Stock items shipped promptly; custom production typically 10 – 40 working days by quantity |
| Payment Terms | T/T L/C at sight |
| Processing Services | Cutting to length and width, profiling, bevelling, bending, drilling, welding, galvanizing and surface polishing |
| Certification | Mill Test Certificate to EN 10204 3.1, or 3.2 with third-party endorsement; heat analysis and mechanical test report |
Every part of S275J2 is a specification, not a marketing name.
| Part | Meaning |
|---|---|
| S | Structural steel — the European convention for structural-steel grades. |
| 275 | The specified minimum yield strength in MPa (up to 16 mm). As with all EN 10025 grades, the first number is a yield value, not a tensile one. |
| J2 | Impact toughness class: the steel is Charpy V-notch tested at −20 °C with a minimum absorbed energy of 27 J (longitudinal). J = impact energy tested; 2 = −20 °C (the J0 class is 0 °C, the JR class +20 °C). To meet −20 °C the grade is supplied fully killed and grain-refined — it is not the semi-killed option. |
| 1.0145 | The European material number (Werkstoffnummer) for S275J2 — use it on drawings and certificates to remove any ambiguity about which grade is meant. |
| EN 10025-2 | Part 2 of the European structural-steel standard — non-alloy structural steels. It is distinct from EN 10025-3 (normalized fine-grain, e.g. S355N) and EN 10025-4 (thermomechanically rolled / low-temperature grades). |
The S275 toughness ladder at the 275 MPa level — the letter/temperature is what changes.
| Grade | Standard | Min. yield | Impact test |
|---|---|---|---|
| S235JR | EN 10025-2 | 235 MPa | +20 °C, ≥ 27 J |
| S275JR | EN 10025-2 | 275 MPa | +20 °C, ≥ 27 J |
| S275J0 | EN 10025-2 | 275 MPa | 0 °C, ≥ 27 J |
| S275J2 (this page) | EN 10025-2 | 275 MPa | -20 °C, ≥ 27 J |
| S355J2 | EN 10025-2 | 355 MPa | -20 °C, ≥ 27 J |
S275J2 is the 275 MPa yield rung of the European structural family with −20 °C impact. The table maps it to its closest grades — a similar yield figure is not a licence to substitute; check chemistry, toughness, condition and thickness brackets before swapping. Linked grades open their own page.
| Standard | Grade | Min. Yield | What to check before substituting |
|---|---|---|---|
| EN 10025-2 (this page) | S275J2 | 275 MPa | The European non-alloy grade — −20 °C, ≥ 27 J, material 1.0145 (this page) |
| EN 10025-2 | S275JR | 275 MPa | The same 275 MPa yield but only +20 °C impact — the warm-climate version. Choose S275JR where the structure never sees frost. |
| EN 10025-2 | S275J0 | 275 MPa | The 0 °C version of the same 275 MPa yield — for light sub-zero duty. Dedicated page not published here; named for cross-reference. |
| EN 10025-2 | S355J2 | 355 MPa | The same −20 °C impact with 80 MPa more yield — the natural step-up when the cold-climate structure also needs the extra strength. |
| ASTM A283 / A36 | A283 Grade D / A36 | 250 MPa | The closest US plates by yield (~250 MPa). A36 is the structural workhorse; confirm impact — A36 does not mandate the −20 °C / 27 J test unless specified. |
| JIS G3101 | SS400 | ~245 MPa (tensile-based) | The Japanese general-structural plate; its number is roughly a tensile value, so the true yield is below 275 MPa. A near, not exact, match. |
| GB/T 1591 | Q345C / Q355C | 345 MPa | The Chinese 345 MPa grade with −20 °C impact — a step up in yield with the same cold-toughness level, useful on Chinese-spec projects. |
| GB/T 700 | Q275 | 275 MPa | The Chinese carbon-structural grade at the same 275 MPa yield — a close Chinese equivalent. Dedicated page not published here. |
| DIN 17100 (legacy) | St 44-3N | 275 MPa | The old German designation for S275J2 — S275J2 is the EN successor. |
| NFA 35-501 (legacy) | E 28-4 | 275 MPa | The old French designation; named for cross-reference. |
| BS 4360 (legacy) | 43D | 275 MPa | The old UK designation with −20 °C impact — the direct legacy match for S275J2. |
Ladle (cast) analysis limits in weight percent, per EN 10025-2:2019 Table 2 for the J2 class. S275J2 is a non-alloy grade, so the table is short — the chemistry is what keeps the carbon equivalent low and the welding easy.
| Element | Ladle analysis (max %, unless noted) |
|---|---|
| Carbon, C | ≤ 0.21 (thickness ≤ 40 mm); ≤ 0.22 (thickness > 40 mm) |
| Silicon, Si | ≤ 0.21 |
| Manganese, Mn | ≤ 1.50 |
| Phosphorus, P | ≤ 0.025 |
| Sulphur, S | ≤ 0.025 |
| Nitrogen, N | ≤ 0.012 |
| Copper, Cu | ≤ 0.55 (when specified) |
Carbon equivalent — the weldability gate.
| Thickness range | CEV max (%) |
|---|---|
| ≤ 40 mm | 0.40 |
| > 40 – 150 mm | 0.42 |
| > 150 – 250 mm | 0.44 |
Minimum room-temperature values, read against nominal thickness, per EN 10025-2. The original listing for this grade buried these in raw Excel-style tables; here they are the correct thickness ladders.
| Thickness (mm) | Yield ReH min (MPa) | Tensile Rm (MPa) |
|---|---|---|
| ≤ 16 | 275 | 430 – 580 |
| > 16 – 40 | 265 | 430 – 580 |
| > 40 – 63 | 255 | 410 – 560 |
| > 63 – 80 | 245 | 410 – 560 |
| > 80 – 100 | 235 | 410 – 560 |
| > 100 – 150 | 225 | 400 – 540 |
| > 150 – 200 | 215 | 380 – 540 |
| > 200 – 250 | 205 | 380 – 540 |
| > 250 – 400 | 195 | 380 – 540 |
Elongation & impact — the properties the −20 °C / 27 J grade is defined by.
| Property | Requirement |
|---|---|
| Elongation A (Lo = 5.65√So, longitudinal) | ≥ 23 % for 3–40 mm; ≥ 22 % (40–63 mm); ≥ 21 % (63–100 mm); ≥ 19 % (100–150 mm); ≥ 18 % (150–250 mm) |
| Charpy V-notch, longitudinal | -20 °C, ≥ 27 J (the S275J2 requirement — the “J2” grade) |
S275J2 is normally supplied as-rolled; the order, not the grade, fixes the rest.
| Item | Options |
|---|---|
| Delivery Condition | +AR — As rolled (usual) +N — Normalized +M — Thermomechanical rolled |
| Additional Conditions | UT Charpy V-notch Z15 / Z25 / Z35 Third-party test (SGS) Coated or shot blasted and painting |
| Surface Treatment | As rolled Shot blasted Primed Painted |
What the specification sets, and what has to be added by the order.
| Item | Status in EN 10025-2 | How it is obtained |
|---|---|---|
| Delivery condition | As-rolled (+AR) as standard | +N (normalized) or +M (thermomechanical rolled) can be agreed where a uniform structure or finer grain is wanted; the “J2” toughness class stays the same. |
| Heat treatment | As-rolled is the defined supply | Normalizing is an agreed add-on, not a default; S275J2 is a non-alloy grade, so it does not carry the fine-grain alloying limits of EN 10025-3 grades — but the J2 class already requires grain refining in the cast. |
| Impact toughness | -20 °C / ≥ 27 J at the “J2” grade | Built into the grade; third-party witnessed impact on request. |
| Ultrasonic testing | Not specified | EN 10160 at an agreed acceptance level, by agreement. |
| Through-thickness (Z) properties | Not specified | Z15 / Z25 / Z35 by agreement where the joint pulls through the plate thickness. |
| Third-party inspection | Not specified | SGS, BV, TUV or Intertek at the mill before shipment. |
| Certificate | MTC per the specification | EN 10204 3.1 as standard, 3.2 with third-party endorsement on request. |
Where a 275 MPa non-alloy structural steel carries the load in cold-climate service.
Building frames, beams, columns, roofing and cladding for structures in cold regions — S275J2 gives a useful yield with guaranteed sub-zero impact for fabricated steelwork that sees frost or winter exposure.
Bridge main girders, built-up sections and splice plates for pedestrian and medium-span bridges in cold climates — the −20 °C impact keeps the steel safe through winter loading.
Construction and mining machinery frames, engineering-vehicle chassis, and fabricated machine bases for cold-environment duty — strength with weldability and formability.
Tank shells, silo walls and hoppers for non-pressure storage in cold regions — S275J2’s ductility, weldability and sub-zero impact suit rolled and welded vessels that do not need pressure-vessel grades.
Trailers, containers, agricultural equipment and transport structures for cold environments — the mid-strength, economical rung between S235JR and S355J2 for fabricated and welded goods.
From mill plate to a cut, certified, ready-to-fit structural item.
Plate and sheet cut to length and width, profiled to drawing and bevelled for weld preparation on flame, plasma or laser equipment.
Bending and rolling to radius, cold forming to the radius the thickness allows, plus welded assemblies built under a qualified procedure — S275J2 welds with ordinary consumables; preheat is normally unnecessary below ~25 mm because CEV ≤ 0.40.
Shot blasting to remove mill scale, then shop primer or full paint system, galvanizing where specified, followed by export marking and seaworthy packing.
Chemical analysis and tensile testing per heat, −20 °C Charpy, UT and Z-direction testing when specified, then the MTC carrying the grade, the EN 10025-2 standard and any third-party report.
Send us your standard (EN 10025-2), material number (1.0145), thickness, width and length, quantity, product form, delivery condition (+AR / +N / +M), the −20 °C impact requirement and any UT / Z-direction requirement. We will reply with what the mill can roll and certify at that thickness, plate or cut-length options, mill price and production lead time — and tell you plainly if an as-rolled S275JR (+20 °C) would do, or if a higher yield should step up to S355J2 / S355J0, or a warmer duty to S275J0 / S275JR.
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Welcome to contact us through online consulting, emails and hotline if you are interested in our company or products. Our staff will reply you within 24 hours.

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