S235 Structural Steel Plates
S235 structural steel, EN 10025 compliant, offers reliable strength and weldability for wholesale construction projects.
- High Yield Strength: Minimum 235 MPa, ideal for load-bearing structures in engineering and building applications.
- Excellent Weldability and Formability: Easy to weld, bend, and machine, reducing fabrication costs for manufacturers.
- Cost-Effective Non-Alloy Composition: Low carbon content ensures durability and affordability for large-scale projects.
- Versatile Applications: Compliant with EN 10025-2, suitable for bridges, machinery, and general construction.
S235 Steel Description
S235 steel, a non-alloy structural steel under the EN 10025-2 standard, is renowned for its balanced mechanical properties, making it a go-to choice for engineers and builders worldwide. With a minimum yield strength of 235 MPa and tensile strength ranging from 360-510 MPa, this grade provides exceptional reliability in load-bearing scenarios while maintaining excellent weldability and machinability.
For clients in construction and manufacturing, S235 structural steel delivers significant value by minimizing material costs without compromising on performance—ideal for hot-rolled steel plates in bridges, buildings, and machinery frames. Its low carbon content (up to 0.22%) enhances formability, allowing for seamless integration into complex designs, while compliance with European standards ensures global export compatibility. By choosing S235 mild steel, businesses achieve faster project timelines, reduced maintenance needs, and enhanced structural integrity, ultimately boosting ROI in demanding environments like offshore and industrial sectors.
| S235 Chemical Composition | |||
| Element | Symbol | Content (%) | Notes |
| Carbon | C | ≤ 0.17 | Maximum value |
| Silicon | Si | ≤ 0.35 | Optional element |
| Manganese | Mn | ≤ 1.40 | Improves strength and toughness |
| Phosphorus | P | ≤ 0.035 | Maximum impurity level |
| Sulphur | S | ≤ 0.035 | Maximum impurity level |
| Nitrogen | N | ≤ 0.012 | For S235J2 and related grades |
| Copper | Cu | ≤ 0.55 | If intentionally added |
| Iron | Fe | Balance | Remainder of composition |
| S235 Mechanical Properties | |||
| Property | Symbol | Value / Range | Notes |
| Yield Strength | ReH | ≥ 235 MPa | For thickness ≤ 16 mm |
| Tensile Strength | Rm | 360 – 510 MPa | Depends on thickness |
| Elongation | A5 | ≥ 26 % | For thickness ≤ 40 mm |
| Impact Energy | KV | 27 J (JR @ +20 °C) / 27 J (J0 @ 0 °C) / 27 J (J2 @ –20 °C) | Depends on subgrade |
| Density | ρ | ~7.85 g/cm³ | Typical for carbon steel |
| Modulus of Elasticity | E | ~210 GPa | Standard value for structural steel |
S235 Steel Applications
S235 steel finds extensive use across various industries due to its robust properties and cost-efficiency. In construction and building, it serves as beams, columns, and plates for residential and commercial structures, providing reliable support in frameworks and flooring systems. For bridges and infrastructure, S235’s high yield strength makes it suitable for girders and supports, ensuring stability under heavy loads.
In mechanical engineering and machinery, this grade is applied in manufacturing frames, chassis, and components for equipment like cranes and agricultural tools, benefiting from its machinability. The offshore and marine sector utilizes S235 for platforms and piping, where its weldability aids in assembly. Additionally, in general fabrication, it’s ideal for welded assemblies, railings, and storage tanks, offering versatility for custom projects. Overall, S235 enhances project efficiency by reducing weight while maintaining strength, making it a staple in global supply chains.
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