EN10025-2 S275J0 Non-alloy structural steel plate

Product Introduction

01Product Overview

EN 10025-2 S275J0 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), J0 is the impact toughness class — a Charpy V-notch test at 0 °C with a minimum of 27 J (longitudinal) — and the material number is 1.0143. 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. Unlike the J2 class, the J0 toughness requirement does not force a grain-refined supply — S275J0 is supplied killed (semi-killed is permitted by the product data) but it is not the fully grain-refined rung that J2 and K2 represent.

S275J0 is supplied as plate, sheet, section and bar for welded and bolted structures in cool-climate service — buildings, bridges, machinery, storage tanks, agricultural and transport equipment and general fabrication that must survive light sub-zero temperatures. The “J0” matters: it is the 0 °C toughness class, the right choice where the structure sees cool but not Arctic exposure (for warmer duties step down to S275JR at +20 °C; for genuinely cold service step up to S275J2 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.

410-560 MPaTensile Strengthmin-max band, not a single value

275 MPa minYield Strengthup to 16 mm; steps down with thickness

0 °CImpact Test Temperature≥ 27 J longitudinal (the ‘J0’ grade)

1.0143Material NumberEN 10025-2 non-alloy structural steel

02Technical Specifications

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	S275J0 (material number 1.0143)
Steel Category	Non-alloy structural steel — the correct description for S275J0 per EN 10025-2 Part 2; the J0 class is supplied killed (semi-killed permitted) but is not the grain-refined class (that is J2 / K2)
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	0 °C, ≥ 27 J longitudinal Charpy V-notch — this is what the “J0” 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

Two things worth clearing up about this table. First, S275J0 is a non-alloy structural steel, and “non-alloy” is the correct label here. The J0 class at 0 °C requires a killed supply (semi-killed is permitted), but unlike the J2 class it is not required to be grain-refined — so do not treat it as a fine-grain grade. Second, the rolling range (1.5–680 mm × 1 000–4 000 mm × 1 000–18 000 mm) is the mill’s published rolling envelope; the EN 10025-2 property tables run to 400 mm for S275. Confirm the exact thickness you need against the certificate — and note the “J0” guarantees 0 °C impact, so for warmer duty specify JR and for colder duty specify J2.

03How to Read the Grade

Every part of S275J0 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.
J0	Impact toughness class: the steel is Charpy V-notch tested at 0 °C with a minimum absorbed energy of 27 J (longitudinal). J = impact energy tested; 0 = 0 °C (the JR class is +20 °C, the J2 class is −20 °C). The J0 class requires a killed supply but is not grain-refined — that is the J2 / K2 rung.
1.0143	The European material number (Werkstoffnummer) for S275J0 — 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 (this page)	EN 10025-2	275 MPa	0 °C, ≥ 27 J
S275J2	EN 10025-2	275 MPa	-20 °C, ≥ 27 J
S355J2	EN 10025-2	355 MPa	-20 °C, ≥ 27 J

Pick by the coldest service temperature and the yield you actually need. At 275 MPa, S275J0 is the 0 °C option — for the same 275 MPa yield but warmer service, step down to S275JR (+20 °C); for genuinely cold service at the same 275 MPa yield, step up to S275J2 (−20 °C). The yield, tensile and thickness brackets are the same across the 275 MPa rung — only the impact temperature differs.

04Equivalent Grades

S275J0 is the 275 MPa yield rung of the European structural family with 0 °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)	S275J0	275 MPa	The European non-alloy grade — 0 °C, ≥ 27 J, material 1.0143 (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	S275J2	275 MPa	The same 275 MPa yield but −20 °C impact — the fully killed, grain-refined cold-climate version. Choose S275J2 for genuinely cold service.
EN 10025-2	S275K2	275 MPa	The −20 °C, grain-refined, transverse-tested rung — named for cross-reference; dedicated page not published here.
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 0 °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 a colder impact 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 44-3U	275 MPa	The old German designation for S275J0 — S275J0 is the EN successor.
NFA 35-501 (legacy)	E 28-3	275 MPa	The old French designation; named for cross-reference.
BS 4360 (legacy)	43C	275 MPa	The old UK designation with 0 °C impact — the direct legacy match for S275J0.
UNI 7070 (legacy)	Fe 430 C	275 MPa	The old Italian designation; named for cross-reference.

Strength proximity is not interchangeability. Chemistry limits, toughness classes, delivery conditions and thickness brackets all differ between these standards, and a substitution must be signed off by the designer against the governing code. Two traps to name: EN 10025-2 S275J0’s “J0” only guarantees 0 °C impact — do not use it where the structure sees Arctic (−40 °C or below) service (use S355K2 or an EN 10025-4 grade); and the frequently cited US grade A36 is about 250 MPa, so S275J0 is the safe upward substitute but A36 is not a downward one. Where a US project needs the closest band, specify ASTM A572 Grade 50 (345 MPa) and add the 0 °C impact as a supplementary requirement, since A572 does not mandate it.

05Chemical Composition

Ladle (cast) analysis limits in weight percent, per the S275J0 product data sheet and EN 10025-2:2019. S275J0 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	≤ 0.18
Silicon, Si	not separately specified in the product analysis (residual, typically ≤ 0.55)
Manganese, Mn	≤ 1.50
Phosphorus, P	≤ 0.030
Sulphur, S	≤ 0.030
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

Read the certificate against this table, not against a one-line data sheet. S275J0 is a non-alloy steel, so the chemistry is deliberately simple: carbon is capped at 0.18 % in the published product data (EN 10025-2:2019 gives 0.21 % up to 40 mm and 0.22 % above), phosphorus and sulphur are held to 0.030 % on the data sheet — note EN 10025-2 permits up to 0.035 % for the JR / J0 classes and tightens to 0.025 % for the J2 class, so confirm the binding figure on the MTC — and copper is optional (it slightly improves atmospheric-corrosion resistance but is not a weathering steel). The carbon equivalent CEV — C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15 — is limited to ≤ 0.40 % up to 40 mm, which is why S275J0 welds without preheat in ordinary thicknesses.

06Mechanical Properties

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 R_eH min (MPa)	Tensile R_m (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 0 °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	0 °C, ≥ 27 J (the S275J0 requirement — the “J0” grade)

Three points on reading the table. First, the yield is given in thickness bands (275 MPa up to 16 mm, stepping down to 195 MPa at 250–400 mm) because heavier plate receives less reduction during rolling. Second, the tensile band shifts from 430–580 / 410–560 MPa (up to 100 mm) to 400–540 / 380–540 MPa above 100 mm. Third, the impact is a guaranteed 0 °C / ≥ 27 J — this is the defining property of the “J0” suffix, and it is tested longitudinally; transverse values are 3 J lower by the standard. For any genuinely cold (−20 °C or below) duty, switch to S275J2; for Arctic (−40 °C or below) service, switch to S355K2 or an EN 10025-4 grade.

07Delivery Condition, Heat Treatment & Additional Requirements

S275J0 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 (thermomechanically rolled) can be agreed where a uniform structure is wanted; the “J0” toughness class stays the same.
Heat treatment	As-rolled is the defined supply	Normalizing is an agreed add-on, not a default; S275J0 is a non-alloy grade, so it does not carry the fine-grain alloying limits of EN 10025-3 grades — and unlike J2 it is not required to be grain-refined.
Impact toughness	0 °C / ≥ 27 J at the “J0” 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.

Keep the condition and the standard in the enquiry. S275J0 is normally delivered as-rolled (+AR) and tested per heat; anything beyond that — +N, +M, UT, Z-direction, third-party inspection — has to be written into the order before rolling, not added afterwards. Because the grade name already carries the toughness class (the “J0”) and the 0 °C impact, just name the standard (EN 10025-2) and the material number 1.0143 — the certificate reads S275J0 either way. Remember the “J0” covers 0 °C; for warmer service, ask for JR, and for colder service, ask for J2.

08Typical Applications

Where a 275 MPa non-alloy structural steel carries the load with a light sub-zero toughness margin.

Buildings & Construction

Building frames, beams, columns, roofing and cladding for structures in cool regions — S275J0 gives a useful yield with a guaranteed 0 °C impact for fabricated steelwork that sees light frost or winter exposure.

Bridges & Infrastructure

Bridge main girders, built-up sections and splice plates for pedestrian and medium-span bridges in cool climates — the 0 °C impact keeps the steel safe through cool-season loading.

Machinery & Equipment

Construction and mining machinery frames, engineering-vehicle chassis, and fabricated machine bases for cool-environment duty — strength with weldability and formability.

Storage Tanks & Silos

Tank shells, silo walls and hoppers for non-pressure storage in cool regions — S275J0’s ductility, weldability and 0 °C impact suit rolled and welded vessels that do not need pressure-vessel grades.

General Fabrication & Transport

Trailers, containers, agricultural equipment and transport structures for cool environments — the mid-strength, economical rung between S235JR and S355J2 for fabricated and welded goods.

Why specify S275J0 rather than S275JR or S275J2: it gives 17 % more yield than S235JR (275 vs 235 MPa) at little extra cost, while staying a simple, weldable, non-alloy grade with no preheat in ordinary thicknesses — and adds the 0 °C impact that S275JR does not. What it does not give you is Arctic (−20 °C) impact — that is S275J2 or an EN 10025-4 grade; and for a higher yield at the same 0 °C impact, step up to S355J2.

09Processing, Testing & Supply

From mill plate to a cut, certified, ready-to-fit structural item.

Cutting & Profiling

Plate and sheet cut to length and width, profiled to drawing and bevelled for weld preparation on flame, plasma or laser equipment.

Forming, Bending & Welding

Bending and rolling to radius, cold forming to the radius the thickness allows, plus welded assemblies built under a qualified procedure — S275J0 welds with ordinary consumables; preheat is normally unnecessary below ~25 mm because CEV ≤ 0.40.

Surface Treatment

Shot blasting to remove mill scale, then shop primer or full paint system, galvanizing where specified, followed by export marking and seaworthy packing.

Inspection & Certified Delivery

Chemical analysis and tensile testing per heat, 0 °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.

Mill Test Certificate to EN 10204 3.1, or 3.2 with third-party endorsement
MTC stating the grade (S275J0) and material number 1.0143
Heat analysis and mechanical test report (yield, tensile, elongation, 0 °C Charpy)
Carbon equivalent CEV reported (≤ 0.40 % up to 40 mm, ≤ 0.42 % to 150 mm, ≤ 0.44 % above)
Ultrasonic testing report to the agreed acceptance level (EN 10160)
Z-direction (through-thickness) test report where Z15/Z25/Z35 is ordered
Third-party inspection by SGS, BV, Intertek or another nominated agency
Export packing, marking and loading supervision

Quote checklist — you get a faster, comparable price if you send: thickness × width × length, quantity, product form (plate, sheet, section or bar), delivery condition (+AR / +N / +M), the 0 °C impact requirement, UT acceptance level and any Z-direction requirement, surface treatment, MTC type, destination port and payment terms. MOQ is 1 t.

10Frequently Asked Questions

Q1What does EN 10025-2 S275J0 actually mean?

S275J0 is a European non-alloy structural steel. S is structural, 275 is the minimum yield in MPa, and J0 is the impact toughness class — a Charpy V-notch test at 0 °C with ≥ 27 J (longitudinal). The material number is 1.0143, and the standard is EN 10025-2 (Part 2: non-alloy structural steels), distinct from EN 10025-3 (fine-grain, e.g. S355N) and EN 10025-4 (TMCP / low-temperature grades).

Q2Is S275J0 a non-alloy or a low-alloy / fine-grain steel?

S275J0 is a non-alloy structural steel per EN 10025-2 Part 2 — “non-alloy” is the correct description (it is not a low-alloy/micro-alloy grade). The J0 impact class at 0 °C requires a killed supply but is not required to be grain-refined — that is the J2 / K2 rung. Its toughness and weldability come from low carbon and low CEV (≤ 0.40 %), not from heavier alloying.

Q3What is S275J0 equivalent to in EN / ASTM / JIS / GB?

At 275 MPa, the warm-climate version is S275JR (+20 °C) and the cold-climate version is S275J2 (−20 °C); the high-yield cold-climate rung is S355J2 (355 MPa, −20 °C). Legacy European equivalents are DIN St 44-3U, NFA E 28-3, BS 4360 43C and UNI 7070 Fe 430 C. In the US the closest is ASTM A283 Grade D / A36 (~250 MPa); in Japan SS400 (tensile-based, ~245 MPa yield); in China Q275 (275 MPa) or Q345C / Q355C (345 MPa, −20 °C). All are procurement mappings; confirm against your governing code.

Q4Is the impact value 0 °C / 27 J, and what if I need colder?

Yes — EN 10025-2 specifies 0 °C with ≥ 27 J (longitudinal) for S275J0. The “J0” suffix is specifically the 0 °C impact class, so it is the right grade for cool service but not needed where the structure only sees room temperature (use S275JR). For genuinely cold (−20 °C) service at the same 275 MPa yield, step up to S275J2; for Arctic (−40 °C or below), use S355K2 or an EN 10025-4 grade.

Q5Can I substitute S235JR, S275JR, S355J2, A36, SS400 or A572 for S275J0?

Only with the designer’s sign-off against the governing code. S275JR is the warm-climate downward option (275 MPa, +20 °C); S355J2 is the common upward substitute (355 MPa, −20 °C impact). A36 is ~250 MPa and does not mandate the impact test, so S275J0 is the safe upward substitute but A36 is not a downward one. SS400 is tensile-based (~245 MPa yield) and not a true match. A572 Grade 50 is ~345 MPa; add the 0 °C impact as a supplementary requirement. S275J0’s edge is the simple, weldable, low-CEV chemistry with a guaranteed 0 °C impact.

Q6How thick, how fast, what paperwork, and is the old page’s data right?

From 1 t, with stock items shipped promptly and custom production typically 10–40 working days by quantity. Each heat ships with an EN 10204 3.1 mill test certificate. The figures on this page re-organise and complete the older listing for this grade: the chemistry now carries the J0 ladle set (C ≤ 0.18, Mn ≤ 1.50, Si not separately specified, P / S ≤ 0.030, N ≤ 0.012, Cu ≤ 0.55, CEV ≤ 0.40 / 0.42 / 0.44 — note the P / S of 0.030 published on the data sheet, while EN 10025-2 permits up to 0.035 for the JR / J0 classes and 0.025 for J2) and the mechanical data is presented as the correct thickness ladders — the yield steps 275 → 195 MPa, tensile 430–580 / 410–560 / 400–540 / 380–540 MPa, elongation ≥ 23 % → 18 % and the 0 °C / ≥ 27 J impact the old sheet only stated in a sentence. We also name a source variant: carbon is listed at 0.18 % on the published data sheet, while EN 10025-2:2019 gives 0.21 % (0.22 % above 40 mm) — confirm the exact value on the MTC.

More carbon and low-alloy structural grades we supply: S275J0 (this page) · EN 10025-2 S275JR carbon structure steel plate · EN 10025-2 S355J2 carbon structure steel plate · ASTM A572 Grade 50 hot rolled sheet plate · GB/T 1591 Q345C / Q355C low-alloy steel plate · JIS G3106 SM490YA carbon structural steel plate · JIS G3106 SM490YB carbon structural steel plate · View all carbon and low-alloy steel plate →

Sources and limits: the figures on this page are reference information drawn from EN 10025-2:2019 (S275J0, material number 1.0143) and published steel data sheets. S275J0 is a non-alloy structural steel with a killed (semi-killed permitted) supply; the chemistry limits and the tensile / yield / elongation / 0 °C / 27 J impact floors are the standard requirements, while actual heat values are recorded on the EN 10204 certificate of the lot supplied. A source variant is named so you can verify it on the MTC: carbon is listed at 0.18 % on the published data sheet but EN 10025-2:2019 gives 0.21 % (0.22 % above 40 mm). The old listing for this grade kept the same core values; we have re-organised them into the standard’s ladle-analysis and mechanical tables and added the grade-designation, equivalent-grade and delivery-condition chapters. BBN supplies, cuts and processes the plate.

Get Your EN 10025-2 S275J0 Quotation Now

Send us your standard (EN 10025-2), material number (1.0143), thickness, width and length, quantity, product form, delivery condition (+AR / +N / +M), the 0 °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 S275J2 / S355J0, or a colder duty to S275J2 / S355K2.

Get Price & Stock Status E-mail: sales@bebonchina.com WhatsApp: +86 173 9896 0706

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EN10025-2 S275J0 Non-alloy structural steel plate

Product Introduction

01Product Overview

02Technical Specifications

03How to Read the Grade

04Equivalent Grades

05Chemical Composition

06Mechanical Properties

07Delivery Condition, Heat Treatment & Additional Requirements

08Typical Applications

Buildings & Construction

Bridges & Infrastructure

Machinery & Equipment

Storage Tanks & Silos

General Fabrication & Transport

09Processing, Testing & Supply

Cutting & Profiling

Forming, Bending & Welding

Surface Treatment

Inspection & Certified Delivery

10Frequently Asked Questions

Get Your EN 10025-2 S275J0 Quotation Now

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