S355 Round Bar is a high-strength, low-alloy steel widely used in structural engineering, construction, and manufacturing industries. Known for its excellent weldability, machinability, and high tensile strength, S355 steel is one of the most popular materials used in the production of a wide range of structural components. With a minimum yield strength of 355 MPa, it offers exceptional resistance to stress, making it an ideal choice for applications requiring high-performance and durability.
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S355 Round Bar is recognized for its high tensile strength, making it a preferred material for heavy-duty applications. The steel bar can endure high mechanical stresses without failure, which makes it suitable for use in structural parts such as beams, columns, and other critical components.
The material is also versatile in terms of processing. It can be easily welded, hot-formed, and cold-formed, offering flexibility for manufacturers and fabricators. Its excellent machinability ensures that it can be shaped into a variety of complex shapes and sizes with precision.
The key benefits of S355 Round Bar include:
Due to these properties, S355 Round Bars are widely used in applications where both strength and formability are required.
| Properties | S355 Round Bar |
|---|---|
| Komposisi kimia | |
| Carbon (C) | 0.18% – 0.22% |
| Manganese (Mn) | 1.50% – 2.00% |
| Silicon (lan) | 0.50% – 0.80% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.035% |
| Mechanical Properties | |
| Yield Strength | 355 MPa (min) |
| Kekuwatan Tensile | 470 – 630 MPa |
| Elongation | ≥ 22% |
| Kekerasan (HB) | 140 – 190 HB |
| Dimensional Tolerances | |
| Diameter Tolerance | ±0.10 mm |
| Length Tolerance | ±10 mm |
| Standards | EN 10025-2, BS 4360, DIN 17100 |
| Heat Treatment | Quenching, Normalizing |
| Lumahing Rampung | Smooth, Clean, Mill Finished |

At Yuanchi, we ensure that each S355 Round Bar is properly packaged to prevent damage during transit. The bars are coated with anti-rust oil to protect against corrosion during transport. They are bundled together and secured with steel straps for stability. Depending on the size of the order, the bars are either bundled or packed in wooden crates for safer shipping.
We also offer worldwide shipping, including to South America, the Middle East, Africa, and Australia. Our logistics team ensures that your S355 Round Bars are delivered in a timely manner, whether by sea freight or air freight. With careful handling and attention to detail, we guarantee that your order will reach you in excellent condition, ready for use in your projects.
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