S275JR carbon steel plate is one of the most commonly specified grades in European structural engineering. As part of the EN 10025-2 family of non-alloy structural steels, S275JR delivers a reliable 275 MPa minimum yield strength with guaranteed Charpy impact at room temperature. It is the workhorse grade for general building frames, machinery bases, and light structural applications where higher strength S355 is not required.
Huaxia-Steel supplies S275JR plate direct from ISO-certified Chinese mills, with full EN 10204 3.1 mill certification, EN 10025-2 compliance, third-party inspection (SGS / BV / TUV on request), and global ocean shipping to your project site.
Product Overview
S275JR is a non-alloy, hot-rolled structural steel grade standardized under EN 10025-2:2019. The ‘JR’ suffix guarantees 27J Charpy V-notch impact at +20°C, which is sufficient for most indoor, ambient-temperature, and mild-climate applications. S275 is the next step up from S235JR in the EN 10025-2 range, providing 17% higher yield strength at modest additional cost.
Specifications
Standard & Grade
- Standard: EN 10025-2:2019 (Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy structural steels)
- Grade: S275JR (room temperature impact, +20°C, 27J)
- Delivery condition: As-rolled (+AR), suitable for most plates up to 60mm
- Equivalent grades: ASTM A572 Gr.45, JIS SM400A, GB/T Q275, DIN 1.0044, IS 2062 E300
Dimensional Range
| Parameter | Range |
|---|---|
| Thickness | 6mm – 150mm (standard); up to 250mm by agreement |
| Width | 1,500mm – 3,500mm |
| Length | 3,000mm – 18,000mm |
| Plate per ton weight (10mm) | ~78.5 kg/m² |
| Typical max plate weight | 15 tonnes |
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (ReH, ≤16mm) | ≥275 MPa |
| Yield Strength (16-40mm) | ≥265 MPa |
| Yield Strength (40-63mm) | ≥255 MPa |
| Tensile Strength (Rm) | 410-560 MPa |
| Elongation (A5, ≥3mm) | ≥22% |
| Impact Energy (KV, +20°C, long) | ≥27J (JR designation) |
| Brinell Hardness (typical) | 120-160 HBW |
Chemical Composition (Heat Analysis, max %)
| C | Mn | Si | P | S | N | Cu |
|---|---|---|---|---|---|---|
| 0.21 | 1.50 | — | 0.035 | 0.035 | 0.012 | 0.55 |
Carbon equivalent value (CEV) is typically ≤0.40 for standard S275JR, providing good weldability without preheat for sections up to 30mm thick.
Available Subgrades for Special Applications
| Subgrade | Impact Temp | Delivery Condition | When to Specify |
|---|---|---|---|
| S275JR | +20°C | +AR or +N | General indoor / outdoor structures |
| S275J0 | 0°C | +AR or +N | Mild winter climates, unheated buildings |
| S275J2 | -20°C | +N or +M | Cold-region structures, northern Europe, mountain regions |
| S275J2+N | -20°C, normalized | +N | For thick plates (40mm+) at sub-zero |
| S275M | +20°C to -50°C | +M (TMCP) | Arctic / offshore with low CEV (EN 10025-4) |
Manufacturing Standards
- EN 10025-2: Chemical composition and mechanical properties of delivery
- EN 10029: Tolerances for plate dimensions and shape (thickness, length, flatness, edge)
- EN 10163: Surface condition class (A, B, C — Class A2/B2 typical for hot-rolled plates)
- EN 10204 3.1: Mill test certificate supplied with every plate
- EN ISO 1461: For hot-dip galvanizing (project-specific)
Typical Applications
Construction & Building
- Steel frame buildings (columns, beams, base plates)
- Floor and roof decking support
- Stair treads and landings
- Reinforcement plates and gusset connections
- Bracing and stiffener plates
Industrial Equipment & Machinery
- Machine tool beds and bases
- Press frames and hydraulic equipment bases
- Industrial platforms and walkways
- Tank supports and saddle plates
- Ship hull internal structures (smaller vessels)
Structural Applications
- Bridge girders and deck plates (light traffic, secondary)
- Sign gantries and overhead supports
- Crane runway beams (light duty)
- Wind turbine tower internal flanges
General Fabrication
- Heavy-duty brackets, baseplates, and structural fittings
- Transportation equipment (truck frames, trailer supports)
- Storage rack uprights and shelving components
- Conveyor frames and supports
Available Forms & Sizes (Stock Range)
| Thickness | Width Range | Length Range | Common Stock (mm) |
|---|---|---|---|
| 6mm – 12mm | 1,500 – 3,200mm | 3,000 – 12,000mm | 8, 10, 12 |
| 12mm – 25mm | 1,500 – 3,500mm | 3,000 – 12,000mm | 15, 16, 18, 20, 25 |
| 25mm – 50mm | 1,800 – 3,500mm | 3,000 – 12,000mm | 30, 40, 50 |
| 50mm – 80mm | 1,800 – 3,200mm | 3,000 – 9,000mm | 60, 70, 80 |
| 80mm – 150mm | 1,800 – 2,800mm | 3,000 – 6,000mm | 90, 100, 120 (limited) |
Custom cut-to-size, plasma- or laser-cut shapes, drilling, milling, and beveling are available on request. Plates can also be supplied with MTC referencing both EN 10025-2 and EN 10025-4 (for normalized grades). Thicknesses above 80mm typically carry a longer lead time — confirm at inquiry.
Dimensional Tolerances per EN 10029
| Feature | Tolerance Class (EN 10029) |
|---|---|
| Thickness (≤400mm) | Class A — standard ± tolerances on width & length |
| Length tolerance | -0/+20 mm (standard), tighter on request |
| Width tolerance | -0/+20 mm |
| Flatness (tolerance class) | Class N (standard); Class S (tight) on request |
| Edge condition | Mill edge (standard); trimmed, gas-cut, or sawn on request |
Quality Assurance
- Mill test certificate: EN 10204 3.1 with full heat analysis and mechanical test results per plate (or heat average for plates ≤6mm)
- Heat treatment validation: Heat number traceability
- Third-party inspection: SGS, BV, TUV, or Intertek at customer’s expense (typically USD 250-400 per inspection day)
- Charpy impact test: Three specimens per heat at the specified subgrade temperature (+20°C for JR)
- Weldability: CEV typically ≤0.40, suitable for standard E7018 or ER70S-6 weld procedures without preheat for sections ≤30mm
Packaging and Shipping
- Plate bundles: Steel banding on timber dunnage, 4-6 corner protectors, plastic wrapping on request
- Mill marking: Heat number, plate number, grade designation, dimension, and supplier mark per EN 10025-2
- Container loading: VCI film + desiccant bags for long-voyage shipments; full pre-loading inspection photos
- Ocean shipping: FOB Shanghai / Tianjin / Qingdao, CIF major ports, or DDP to project site on request
- Typical lead time: Stock items 3-7 days; custom dimensions 3-4 weeks
How to Order S275JR Plate
- Provide specifications: Standard, grade, subgrade, dimensions, quantity, MTC requirement
- Confirm third-party inspection: Required? Inspection company and standard?
- Confirm delivery condition: As-rolled (+AR) or normalized (+N)
- Delivery terms: FOB, CIF, or DDP; destination port or site
- Special requirements: Edge preparation, surface treatment, marking, packaging
- Quotation: Receive our formal offer with mill price, lead time, and shipping cost
Get a Quote
Need S275JR carbon steel plate for your project? Contact Huaxia-Steel with your specifications (grade, subgrade, dimensions, quantity, delivery port) to receive a competitive mill-direct quotation. We supply EN 10025-2 S275JR plate with full 3.1 MTC, dual-standard certification available, third-party inspection on request, and global shipping.
