Hot-Rolled Non-Alloy Seamless Steel Pipe For Building & Bridge Structural Works

S355J2 25mm Hot-Rolled Non-Alloy Seamless Steel Pipe for Building & Bridge Structural Works

S355J2 25mm hot-rolled non-alloy seamless steel pipe is manufactured in strict compliance with EU standards EN 10210 and EN 10025-2. It is a high-strength structural pipe developed for construction projects, bridge erection and steel structure infrastructure. Fabricated from premium non-alloy steel via hot rolling, this pipe has a nominal diameter of 25mm with no welding seam. It features dense and uniform microstructure, combining high strength, good toughness and outstanding low-temperature impact resistance. Suitable for outdoor heavy-load infrastructure requiring high stability, it serves as a core material for load-bearing structures, support frames and main framework construction.

S355J2 is a classic European-grade structural steel. The letter S denotes structural steel, and 355 refers to the minimum yield strength: ≥355MPa for wall thickness ≤16mm and ≥345MPa for wall thickness 16–40mm. Its tensile strength ranges from 470MPa to 630MPa with elongation ≥20%, delivering reliable mechanical properties and strong load capacity. Grade J2 meets the requirement of Charpy V-notch impact energy ≥27J at -20℃, preventing brittle fracture under low temperatures and suiting construction sites with various complex climates.

The hot-rolled seamless process removes the weak weld seam risk of welded pipes. The pipe boasts uniform wall thickness, good roundness and no internal pores or inclusions, offering high rigidity and excellent deformation resistance. The non-alloy steel features high purity and low impurity content. It has favorable weldability and machinability together with moderate weather resistance. Easy for on-site processing, it satisfies assembly, fixing and load-bearing demands of various steel structures and lasts longer than ordinary carbon steel pipes.

This 25mm S355J2 seamless pipe is specially engineered for structural building and bridge construction and is an ideal load-bearing pipe for modern infrastructure. In building projects, it can be used for factory frames, high-rise steel structures, curtain wall supports, foundation embedment and scaffold load-bearing members. In bridge works, it applies to bridge trusses, guardrail supports, auxiliary deck load-bearing components and bridge reinforcement & retrofitting. It works both indoors and outdoors, resisting heavy loads, temperature fluctuations and weathering. Its stable structure cuts long-term maintenance cost and ensures permanent safety of buildings and bridges, meeting EU engineering acceptance requirements.

Compliant with EU standards, stable quality and smooth project acceptance.

Hot-rolled seamless construction, weld-free, high strength, anti-deformation and consistent load capacity.

S355J2 structural steel with superior low-temperature toughness for multi-climate job sites.

High-purity non-alloy grade, easy processing, good weather resistance and long service life.

Standard 25mm diameter with wide compatibility for various auxiliary structures in building and bridge projects.

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