Gnee Steel (Tianjin) Co., Ltd. is one of the most professional Mild Steel Structural S275JR I Beam manufacturers and suppliers in China, also supports customized service. If you're going to buy Mild Steel Structural S275JR I Beam made in China, welcome to get free sample from our factory. Quality products and low price are available.
S275JR EN I-Beam
Hot Rolled S275JR Beam Products Description
S275JR I Beam Steel is a non-alloy structural steel grade under EN 10025-2, designed for load-bearing applications requiring higher strength than S235JR.
S275JR I Beam Steel
With a minimum yield strength of 275 MPa, it is widely used in structural frameworks, bridges, and heavy-duty engineering projects.
Gnee supplies hot rolled S275JR I beams with strict dimensional tolerance, stable mechanical properties, and full traceability according to EN standards. All products can be delivered with EN 10204 3.1 certification and third-party inspection (SGS/BV).
Standard & Grade Definition of S275JR I Beam Steel
| Item | Description |
|---|---|
| Standard | EN 10025-2 |
| Steel Grade | S275JR |
| Material Number | 1.0044 |
| Steel Type | Non-alloy structural steel |
| Impact Test | ≥27J at 20°C (JR) |
Grade Explanation:
S = Structural steel
275 = Minimum yield strength (MPa)
JR = Charpy V-notch impact test at room temperature (20°C)
Mechanical Properties of S275JR I Beam Steel
| Property | Value | Notes |
|---|---|---|
| Yield Strength (ReH) | ≥275 MPa | Thickness ≤16 mm |
| Tensile Strength (Rm) | 400 – 560 MPa | Depends on section size |
| Elongation (A%) | 19 – 23% | Gauge length proportional |
| Impact Energy | ≥27J @ 20°C | Standard JR requirement |
| Hardness (HB) | 120 – 160 (typical) | Not specified in standard |
Compared with S235JR, S275JR provides ~17% higher yield strength, making it more suitable for heavier structural loads.
Chemical Composition of S275JR I Beam Steel
| Element | Content (%) | Technical Impact |
|---|---|---|
| Carbon (C) | 0.21 – 0.22 | Strength + weldability balance |
| Manganese (Mn) | ≤1.50 | Improves strength and toughness |
| Silicon (Si) | ≤0.40 | Deoxidizer, improves strength |
| Phosphorus (P) | ≤0.040 | Controlled for toughness |
| Sulfur (S) | ≤0.040 | Lower S improves ductility |
| Nitrogen (N) | ≤0.012 | Grain refinement control |
| Copper (Cu) | ≤0.55 | Enhances corrosion resistance |
Carbon Equivalent & Weldability of S275JR I Beam Steel
| Parameter | Value |
|---|---|
| Carbon Equivalent (Ceq) | ≤0.45% |
| Weldability | Excellent (preheating usually not required for thin sections) |
S275JR is considered a good welding steel, compatible with common welding processes such as:
- SMAW (Shielded Metal Arc Welding)
- MIG/MAG welding
- Submerged arc welding
Dimensions & Section Standards of S275JR I Beam Steel
| Section Type | Standard | Size Range |
|---|---|---|
| IPE Beam | EN 10365 | IPE 80 – IPE 600 |
| IPN Beam | EN 10365 | IPN 80 – IPN 550 |
| ASTM Equivalent | ASTM A6/A6M | W shapes (W8–W24) |
Typical Supply Dimensions
| Parameter | Range |
|---|---|
| Length | 6 m / 9 m / 12 m / Custom (max 18 m) |
| Height (H) | 80 – 600 mm |
| Flange Width (B) | 46 – 220 mm |
| Web Thickness (t_w) | 3.8 – 12 mm |
| Flange Thickness (t_f) | 5.2 – 21 mm |
Dimensional Tolerance
| Parameter | Tolerance |
|---|---|
| Depth (H) | ±3 mm |
| Flange Width (B) | ±3 mm |
| Thickness (t_w / t_f) | ±10% |
| Length | +50 / 0 mm |
| Straightness | ≤1/1000 of total length |
| Twist | ≤4 mm/m |
✔ No cracks, folds, or laminations
✔ Straightness and squareness strictly controlled
Delivery Condition & Processing of S275JR I Beam Steel
| Condition | Description |
|---|---|
| As Rolled | Standard hot rolled condition |
| Normalized | Improved grain structure |
| TMCP | Better strength and toughness |
| Q&T | For special structural requirements |
| PWHT | Post-weld heat treatment available |
Surface Finish Options of S275JR I Beam Steel
| Type | Application |
|---|---|
| Black (Hot Rolled) | General construction |
| Shot Blasted | Surface cleaning before coating |
| Anti-rust Oil | Temporary corrosion protection |
| Painted / Epoxy | Indoor / industrial use |
| Hot-dip Galvanized | Outdoor / corrosive environments |
Processing & Customization Capability of S275JR I Beam Steel
| Service | Details |
|---|---|
| Cutting | Fixed length / CNC cutting |
| Drilling | Bolt holes / structural connections |
| Beveling | Welding preparation |
| Welding | Prefabricated components |
| Marking | Custom heat number / logo |
| Packaging | Seaworthy export packing |
MOQ: 20 tons
Applications of S275JR I Beam Steel
S275JR I beams are widely used in medium to heavy structural applications:
- Steel Structures – beams, columns, load-bearing frames
- Bridge Engineering – primary and secondary support members
- Industrial Buildings – factories, warehouses, plants
- Energy Projects – power plants, oil & gas platforms
- Railway Infrastructure – metro stations, terminals
- Mechanical Fabrication – equipment bases and supports
Equivalent Grades of S275JR I Beam Steel
| Standard | Equivalent Grade |
|---|---|
| ASTM | A36 / A572 Gr.50 (partial equivalent) |
| China | Q275 |
| ISO | Fe430 |
Supply Capability of S275JR I Beam Steel
Stock availability: ~2000 tons ready stock
Delivery time: 7–15 days
Export markets: Middle East, Southeast Asia, Europe, South America
S275JR I Beam Steel Structure Products Image
GNEE Steel H Beam Steel Manufacturer
GNEE Steel was established in 2008, our main products are section steel, angle steel, flat steel, wear-resistant steel, etc. We have established long-term cooperative relations with well-known steel mills and are happy to provide you with the best prices and product suggestions. You are welcome to visit our company.
If you are sourcing S275JR I Beam Steel (1.0044) for structural or engineering projects, Gnee offers:
- Stable quality in accordance with EN standards
- Full certification and inspection support
- Competitive pricing for bulk orders
- Fast and reliable global delivery
Contact us now for technical support and the latest quotation.
Contact now to get S275JR I Beam Quote
FAQ
Q: What is S275JR i shaped steel beam equivalent material?
A: S235JR equivalent steel grades are IS 2062 Gr B, A36, SS400, ST37-2, Q235B, A283C, SM400A, FE360B, E24-2, etc.
Q: What is the difference between S235JR universal beam and S275JR i beam bar?
A: Compared with S235JR steel materials, Grade S275JR steel has a higher yield strength, reaching 275MPa. The tensile strength and elongation of S275JR are relatively higher, which can better meet the requirements of high strength, high rigidity, and high stability.
Q: What is your delivery time?
A: For stocks, we could transport the goods to loading port within 3 days after we received your deposit
For production period, it usually takes about 7-15 days after receiving the deposit.
Q: Can you provide sample ?
A: We can provide the small samples in stock for free, as long as you contact us.
Q: What is your terms of payment?
A: 30% T/T as the upfront deposit, 70% before delivery. We will show you the photos of products and package before you pay the balance.
If you have more needs and questions about S275JR I-Beam, please contact us!