Product Overview – S355J2H Seamless Pipes
S355J2H Seamless Pipes are high-strength structural hollow section (HSS) pipes manufactured in accordance with EN 10210 standards for demanding structural and engineering applications.
These seamless pipes are widely used in offshore platforms, commercial buildings, industrial structures, bridges, stadiums, transmission towers, marine projects, heavy engineering, and infrastructure developments where superior strength and reliability are essential.
The "H" designation represents Hollow Section, while "J2" indicates impact-tested material at -20°C, ensuring excellent toughness even in cold operating environments. Manufactured through a seamless process, S355J2H pipes eliminate weld seams, providing higher pressure resistance, improved structural integrity, and enhanced fatigue performance.
Because of their excellent weldability, high yield strength, and long service life, S355J2H seamless pipes are widely specified by structural consultants, EPC contractors, architects, fabricators, and project engineers across the Middle East, Europe, and Asia.
Standard & International Identification - S355J2+N Seamless Pipes
Technical Specifications – S355J2+N Seamless Pipes
| Outside Diameter: | 21.3 mm to 660 mm |
| Wall Thickness: | 2 mm to 60 mm |
| Manufacturing: | Hot Finished Seamless |
| Shape: | Circular Hollow Section (CHS) |
| Length: | Single Random, Double Random, Cut Length |
| Wall Thickness: | 2 mm to 60 mm |
| End Type: | Plain End, Beveled End |
| Surface Finish: | Black, Shot Blasted, Painted, Oiled |
Third Party Inspection Available
All specifications are in accordance of EN 10210. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – S355J2H Seamless Pipes
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.20% |
| Manganese (Mn): | 1.60% |
| Silicon (Si): | 0.55% |
| Phosphorus (P): | 0.030% |
| Sulfur (S): | 0.025% |
| Nitrogen (N): | 0.012% |
Note: The optimized chemical composition of S355J2H provides excellent weldability, high structural strength, improved toughness, and dependable performance for critical construction and engineering applications.
Mechanical Properties – S355J2H Seamless Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 470–630 MPa |
| Yield Strength | 355 MPa |
| Elongation | 22% |
| Impact Energy | 27 Joules at -20°C |
Note :S355J2H seamless pipes combine high yield strength with outstanding impact resistance, making them an ideal choice for structural steel frameworks, offshore installations, bridges, and heavy engineering projects.
Testing & Inspection
Applications of S355J2H Seamless Pipes
- Where S355J2H Seamless Pipes are used:
- 🔸Structural Hollow Sections
- 🔸Steel Building Frameworks
- 🔸Bridge Structures
- 🔸Pressure Piping Systems
- 🔸Structural Engineering
- 🔸Industrial Machinery
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