S275J0 is a European standard (EN 10025-2) non-alloy structural steel known for its good weldability, strength (minimum 275 MPa yield), and impact toughness down to 0°C, indicated by the "J0". It's a versatile hot-rolled material used in construction, bridges, machinery, and general engineering, offering a balance of performance and fabrication ease, often supplied normalized for construction applications.
Key Characteristics
Standard: EN 10025-2 (European standard).
Type: Non-alloy structural steel.
Strength: Minimum yield strength of 275 MPa (megapascals).
Impact Test: Requires a Charpy impact test of at least 27 Joules at 0°C (zero degrees Celsius).
Weldability: Readily weldable, making it suitable for various construction needs.
Applications: Buildings, bridges, general construction, engineering machinery (excavators, cranes), and other structural components.
Designations
S: Structural Steel.
275: Minimum Yield Strength (MPa).
J0: Impact test at 0°C.
Common Forms & Conditions
Supplied as plates, sheets, sections, bars, and rods.
Often delivered in the normalized or untreated condition for construction, but can also be quenched and tempered.
Chemical Composition
| Variant | Cast | Weldability | C % | Mn % | P % | S % | Cu % | N % | |
|---|---|---|---|---|---|---|---|---|---|
| SB1312 | CC | CEV max | Min | - | - | - | - | - | - |
| Pcm max | Max | 0.17 | 1.40 | 0.040 | 0.040 | - | 0.0120 | ||
| S235JR EN10025-2 (ref) | Std | CEV 0.35max | Min | - | - | - | - | - | - |
| Pcm 0.25max | Max | 0.17 | 1.40 | 0.035 | 0.035 | 0.55 | 0.0120 |
S235JR: C max 0,20 % for sizes over 40 mm. Only CEV required in standard
The price of S275J0 steel is influenced by a combination of global market factors, production costs, and product-specific variables. While many drivers are similar to other structural steels, the "J0" toughness requirement adds a slight premium over standard grades like S275JR.
Primary Price Influencers:
| Category | Specific Factors |
|---|---|
| 1. Raw Material Costs | Iron Ore & Scrap Prices: Global benchmarks (e.g., iron ore futures, shredded scrap indexes) set the base cost. Scrap prices heavily influence electric arc furnace (EAF) production, common in Europe. |
| 2. Production & Energy | Energy Prices: Steelmaking is energy-intensive. Volatility in electricity, natural gas, and coal prices directly impacts melting, rolling, and normalizing (heat treatment for S275J0) costs. |
| 3. Market Dynamics | Demand-Supply Balance: High demand from construction, infrastructure, and heavy machinery sectors in cold climates can tighten supply. Seasonal spikes (e.g., pre-winter construction) may affect regional prices. |
| Global Trade Policies: Tariffs, quotas, or anti-dumping duties (e.g., EU safeguards) on steel imports affect domestic market competitiveness and pricing. | |
| 4. Product Specifications | Toughness Certification ("J0"): Mandatory Charpy testing at 0°C adds quality control and testing costs versus non-tested or "JR" grades. |
| Form & Dimensions: Prices vary by product form-plates, sheets, beams, or custom sections-with complex profiles commanding higher premiums. | |
| Quantity & Order Size: Bulk orders (full truckloads/mill tonnes) receive significant discounts versus small retail quantities. | |
| Certification & Traceability: Additional requirements (e.g., EN 10204 3.1/3.2 certificates, specific chemical reports) increase administrative and testing costs. | |
| 5. Logistics & Geography | Transportation Costs: Distance from mill/service center to project site, fuel surcharges, and freight availability impact delivered prices. |
| Regional Markets: Prices differ across the EU, UK, North America, and Asia due to local supply chains, energy costs, and regulatory environments (e.g., EU carbon border taxes). | |
| 6. Macroeconomic Factors | Currency Fluctuations: As raw materials are traded in USD, a weaker euro or pound against the dollar raises import costs for European buyers. |
| Inflation & Interest Rates: General inflation increases production and labor costs; higher interest rates can dampen construction demand, indirectly affecting prices. |
Why S275J0 May Cost More Than S275JR:
Enhanced Quality Control: The guaranteed impact toughness at 0°C requires precise chemistry control, normalized rolling/heat treatment, and batch testing.
Limited Production Volume: S275J0 is often produced in smaller, specialized batches compared to high-volume commodity grades like S235JR.
Certification Overhead: Mill test certificates with impact test results add administrative and laboratory costs.
1. What is S275J0 steel?
S275J0 is a non-alloy structural steel grade per EN 10025-2, with a minimum yield strength of 275 MPa and guaranteed impact toughness at 0°C.
2. What does the 'J0' in S275J0 mean?
The 'J0' indicates Charpy V-notch impact testing at 0°C, ensuring a minimum absorbed energy of 27 Joules for use in cold environments.
3. What is the difference between S275JR and S275J0?
S275JR is impact tested at +20°C, while S275J0 is tested at 0°C, making J0 suitable for structures exposed to near-freezing temperatures.
4. What are the main applications of S275J0?
It is used in structural components for bridges, buildings, and outdoor infrastructure in temperate climates where temperatures may drop to 0°C.
5. What is the yield strength of S275J0?
The minimum yield strength is 275 MPa for thicknesses up to 16 mm, with decreasing values for thicker sections as per the standard.
6. Can S275J0 be welded?
Yes, S275J0 has good weldability. However, preheating or controlled procedures may be recommended for thicker sections or welding in cold conditions.
7. Is S275J0 equivalent to ASTM A572 Grade 50?
Not directly. While both have similar yield strength (~345 MPa for A572 Gr 50 vs. 275 MPa for S275J0), A572 Grade 50 has higher strength and different toughness requirements.
8. What is the chemical composition of S275J0?
It typically contains max 0.21% Carbon, max 1.50% Manganese, and controlled levels of phosphorus and sulfur (e.g., P ≤ 0.035%, S ≤ 0.035%).
9. Is S275J0 corrosion resistant?
No, S275J0 is not corrosion-resistant and requires protective coatings like painting or galvanizing for outdoor exposure.
10. What is the difference between S275J0 and S355J0?
S355J0 has a higher minimum yield strength (355 MPa) but similar impact toughness at 0°C, making it stronger for cold-weather applications.
Full specification and details are available on request. The above information is provided for guidance purposes only. For specific design requirements please contact our technical sales staff.
