Phanuphong Steel, a reputable manufacturer and supplier of steel and plates located in Bangkok, Thailand, stands out as a top provider of high-quality Carbon Steel EN 10210-1 Grade S355JOH Pipes. With a strong emphasis on precision engineering and adherence to international standards, the company delivers robust and high-performance steel solutions designed for a variety of industrial uses. Known for their dedication to quality, reliability, and customer satisfaction, Phanuphong Steel guarantees that each pipe meets rigorous standards for strength and toughness, making them a perfect fit for the construction, infrastructure, mechanical, and structural engineering sectors both in Thailand and around the world.
The Carbon Steel EN 10210-1 Grade S355JOH Pipe is primarily made up of carbon, manganese, phosphorus, sulfur, and silicon, all carefully balanced to boost strength and weldability. It boasts impressive mechanical properties, including a minimum yield strength of 355 MPa and excellent impact resistance, even in colder temperatures. Thanks to its fine-grain structure, high tensile strength, and toughness, this grade ensures long-lasting durability and structural integrity. The pipes are also known for their outstanding formability, machinability, and stress resistance, making them ideal for demanding applications that require both mechanical strength and precise dimensions.
Standard :Â BS EN 10210 – Hot finished structural hollow sections of non-alloy and fine grain steels
Grade :Â S355J0H
SHS (Square Hollow Sections) Sizes :Â 20*20mm-400*400mm
Wall Thickness :Â 0.5mm – 25mm
Length :Â 6000-14000 mm
Type :Â Seamless/ Welded / ERW
Dimensional Tolerances :Â Thickness : (All sizes +/- 10%)
Dimension Range :Â 21.3-914mm
Packing :Â In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark
Surface Protection :Â Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized
| Steel Grade | % by mass maximum | |||||||
| Steel Name | Steel Number | C specified thickness (mm) | Si | Mn | P | S | N | |
| <_40 | > 40 <_ 120 | |||||||
| S355J0H | 1.0547 | 0.22 | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 | 0.009 |
| Steel Grade | Minimum yield strength eH Mpa | Minimum tensile strength Rm Mpa | ||||||||
| Steel Name | Steel Number | Specified thickness in mm | Specified thickness in mm | |||||||
| <_16 | >16 <_40 | >40 <_63 | >63 <_ 80 | >80 <_100 | >100 <_120 | <_3 | >100 <_ 120 | |||
| S355J0H | 1.0547 | 355 | 345 | 335 | 325 | 315 | 295 | 510-680 | 470-630 | 450-600 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phanuphong Steel is a trusted manufacturer and supplier of high-quality Carbon Steel EN 10210-1 Grade S355JOH Pipe in Bangkok, Thailand. Specializing in premium steel materials, we offer a diverse range of products, including Carbon Steel, Alloy Steel, Mild Steel, and Galvanized Steel. Our extensive inventory features Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. With a strong commitment to reliable delivery and exceptional customer service, Phanuphong Steel provides top-grade materials that ensure superior performance in various industrial applications. Trust Phanuphong Steel for all your Carbon Steel EN 10210-1 Grade S355JOH Pipe needs.
| DIN | EN | BS | NFA | ASTM | ASME |
| – | EN 10210-1 Grade S355JOH | – | – | – | – |
Widely utilized in structural and mechanical applications, the Carbon Steel EN 10210-1 Grade S355JOH Pipe is celebrated for its exceptional strength and durability. It’s commonly used in the construction of bridges, buildings, and large infrastructure projects. Additionally, it plays a crucial role in the fabrication of machinery, offshore structures, power plants, and industrial equipment where high strength and reliability are paramount. Its excellent weldability and machinability make it a go-to choice for pipelines, frameworks, and mechanical systems. The combination of toughness and stress resistance ensures that it performs reliably in even the most challenging environments.





Phanuphong Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Bangkok, Thailand.
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