Steel S275J0
EN S275J0
S275J0 (1.0143) is a higher-strength non-alloy structural steel to EN 10025-2 with 27 J impact energy guaranteed at 0 °C.
Reference datasheet — S275J0 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the +AR condition
S275J0 tempers and conditions
S275J0 is supplied in 4 conditions, soft to hard. +AR is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
+ARDefault Hot rolled | Standard stock condition for plate, sections and flat bar where only the EN 10025-2 mechanical minima are required. | 300 | 460 | 23 | 140 HB | — |
Normalized | Choose for heavy plate, pressure-bearing weldments or where uniform fine grain and reliable 0 °C toughness through thickness are needed. | 310 | 455 | 25 | 135 HB | — |
Thermomechanically controlled processed | Used for coil/plate where a leaner carbon equivalent (better field weldability) and fine grain are wanted at the same 275 MPa class. | 315 | 450 | 26 | 135 HB | 10 % IACS |
Cold drawn | Pick for bright bar with tight tolerance and higher strength; strength gain comes with reduced ductility and residual stress. | 420 | 540 | 13 | 170 HB | — |
What is S275J0?
S275J0 (1.0143) is a higher-strength non-alloy structural steel to EN 10025-2 with 27 J impact energy guaranteed at 0 °C. It is used where more load capacity than S235 is required while keeping simple weldability, and is supplied as-rolled, normalized, thermomechanically rolled and cold-drawn, with 300 MPa yield, 460 MPa tensile, 23 % elongation and 140 HB. Formability is slightly lower than S235 and the steel has no corrosion resistance, so blasting and coating are required outdoors. Choose S275J2 for -20 °C toughness or S355 for a further step in strength. S275J0 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F). S275J0 has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 460 MPa (66.7 ksi) — weaker than 86% of steel grades. Elongation at break is 23% and the elastic modulus is 210 GPa (30.5 Msi).
What is S275J0 used for?
- structural steelwork
- heavy machinery frames
- bridges
- industrial buildings
Advantages
- Readily welded — 92/100, better than 93% of steel grades
- Forms and bends easily — 75/100, better than 90% of steel grades
- Conducts heat well — 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades
- High electrical conductivity — 10 % IACS, better than 83% of steel grades
Limitations
- Low strength — 300 MPa (43.5 ksi), worse than 86% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
S275J0 properties
Typical room-temperature values for S275J0-+AR; bars are the position among steel grades.
Physical3
S275J0 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F).
Mechanical16
S275J0 has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 460 MPa (66.7 ksi) — weaker than 86% of steel grades. Elongation at break is 23% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
S275J0 is rated for continuous service to 350°C (662 °F). It conducts heat at 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
S275J0 conducts electricity at 10 % IACS, better than 83% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of S275J0 takes about 25 MJ of energy and emits 2 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability8
S275J0's machinability is good (60/100, better than 83% of steel grades); weldability excellent (92/100); formability very good (75/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. S275J0 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with S275J0
Is S275J0 easy to machine?
Machines like ordinary mild steel at ~65 % of 1212; gummy chips and built-up edge — use positive rake, sharp tooling and generous coolant.
Can S275J0 be welded?
Excellent weldability by SMAW/GMAW/SAW with E70/G3Si1 consumables; CEV ≤0.40 means little or no preheat below ~30 mm, preheat 100–150 °C for heavy restrained joints.
Can S275J0 be formed, bent or molded?
Good cold bending and press-braking; use inside bend radius ≥1.5–2 t transverse to rolling direction, hot forming 900–1050 °C followed by normalizing.
S275J0 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| C≤0.18 % for t ≤40 mm; up to 0.21 % for thicker product (EN 10025-2) | ≤ 0.18 | 0.16 |
| Mn | ≤ 1.5 | 1.1 |
| Pladle analysis | ≤ 0.03 | 0.02 |
| Sladle analysis | ≤ 0.03 | 0.02 |
| Nlimit waived if sufficient N-binding elements present | ≤ 0.01 | 0.01 |
| Cu | ≤ 0.55 | 0.2 |
| Sinot limited by EN 10025-2 for S275J0; typical mill practice value | ≤ 0.4 | 0.2 |
| Fe | balance |
What surface finishes work on S275J0?
No anodizing; must be shot-blasted to Sa 2.5 then painted, hot-dip galvanized or metallized for any outdoor or humid service.
Surface treatments FabDigit runs on steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel S275J0 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.0143
- Similar grades
- RSt44-2Q275
How much does S275J0 cost?
S275J0 is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
S275J0 — frequently asked
What is S275J0 used for?
S275J0 is typically used for structural steelwork, heavy machinery frames, bridges and industrial buildings. In short: stronger than S235 structural; still fully weldable; 27 J toughness at 0 °C.
What is the yield strength of S275J0?
S275J0 has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 460 MPa (66.7 ksi) — weaker than 86% of steel grades. Strength varies by condition: see the 4 listed tempers.
Is S275J0 easy to machine?
Reasonably — machinability is rated good (60/100, better than 83% of steel grades). Machines like ordinary mild steel at ~65 % of 1212; gummy chips and built-up edge — use positive rake, sharp tooling and generous coolant.
Can S275J0 be welded?
Yes — weldability is rated excellent (92/100). Excellent weldability by SMAW/GMAW/SAW with E70/G3Si1 consumables; CEV ≤0.40 means little or no preheat below ~30 mm, preheat 100–150 °C for heavy restrained joints.
What surface finishes work on S275J0?
No anodizing; must be shot-blasted to Sa 2.5 then painted, hot-dip galvanized or metallized for any outdoor or humid service.
Can S275J0 be formed, bent or molded?
Good cold bending and press-braking; use inside bend radius ≥1.5–2 t transverse to rolling direction, hot forming 900–1050 °C followed by normalizing.
What is the maximum service temperature of S275J0?
S275J0 is rated for continuous use to about 350°C (662 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between S275J0 +AR and S275J0-CD?
+AR is the default condition — standard stock condition for plate, sections and flat bar where only the EN 10025-2 mechanical minima are required. CD: pick for bright bar with tight tolerance and higher strength; strength gain comes with reduced ductility and residual stress. Yield strength is 300 MPa in +AR versus 420 MPa in CD.
How much does S275J0 cost?
S275J0 is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10025-2 Hot rolled products of structural steels — Non-alloy structural steels — CEN (2019)
- EN 10027-2 Designation systems for steels — Steel numbers (1.0143) — CEN (2015)
- EN 1993-1-1 Eurocode 3: Design of steel structures — General rules — CEN (2005)
- GB/T 700 Carbon structural steels (Q275) — SAC (2006)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.19 — Fatigue and Fracture — ASM International (1996)
- worldsteel Life Cycle Inventory data for steel products — World Steel Association (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.