Product Overview – S355J2G3 Structural Steel Pipes
S355J2G3 Pipes are high-strength structural carbon steel pipes manufactured according to the older EN 10025:1993 standard. Although the designation has now been replaced by S355J2+N under the latest EN standards, S355J2G3 remains widely specified in engineering drawings, industrial maintenance projects, replacement piping, and international procurement documents.
Manufactured as Seamless Pipes and Welded Pipes (ERW, EFW & LSAW), S355J2G3 pipes provide outstanding strength, excellent weldability, superior toughness, and dependable performance in demanding industrial environments.
The "J2" designation indicates impact testing at -20°C, while "G3" refers to the normalized or normalized rolled delivery condition, ensuring refined grain structure, improved mechanical properties, and excellent fabrication characteristics.
S355J2G3 pipes are extensively supplied to EPC contractors, oil & gas companies, power plants, offshore projects, steel fabrication industries, marine engineering companies, and infrastructure developers throughout the UAE, Saudi Arabia, Qatar, Oman, Kuwait, India, and global export markets.
Standard & International Identification - S355J2G3 Pipes
Technical Specifications – S355J2G3 Pipes
| Outside Diameter: | 21.3 mm to 1219 mm |
| Wall Thickness: | 2 mm to 60 mm |
| Manufacturing: | Seamless, ERW, EFW, LSAW |
| Length: | 3 M to 12 M |
| Pipe Ends: | Plain End, Bevel End, Threaded End |
| Delivery Condition: | G3 (Normalized / Normalized Rolled) |
| Surface Finish: | Black, Painted, Anti-Corrosion Coated, Pickled, Oiled |
| Available Sizes: | ½" , ¾", 1", 1½", 2", 3", 4", 6", 8", 10", 12", 14", 16", 20", 24" |
Custom sizes are available according to project requirements.
Third Party Inspection Available
All specifications are in accordance of EN 10025:1993. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – S355J2G3 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): | 0.030% |
| Nitrogen (N): | 0.012% |
Note: The optimized chemical composition of S355J2G3 provides an ideal balance of strength, weldability, toughness, and durability, making these pipes suitable for structural engineering, offshore installations, pressure applications, and industrial fabrication.
Mechanical Properties – S355J2G3 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 470–630 MPa |
| Yield Strength | 355 MPa |
| Elongation | 22% |
| Impact Test | 27 Joules at -20°C |
Note :S355J2G3 pipes deliver excellent mechanical performance, including high strength, low-temperature impact resistance, and reliable structural stability, making them suitable for demanding engineering and industrial applications.
Testing & Inspection
Applications of S355J2G3 Pipes
- Where S355J2G3 Pipes are used:
- 🔸Structural Steel Buildings
- 🔸Oil & Gas Processing Plants
- 🔸Power Generation Plants
- 🔸Hydraulic Systems
- 🔸Heavy Equipment Manufacturing
- 🔸Engineering Fabrication
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Key Advantages of S355J2G3 Pipes
Best Alternatives to S355J2G3 Pipes
1. S355J2+N Pipes (Updated EN Standard)
- This process provides:
- 🔸 Modern replacement for S355J2G3
- 🔸 Same excellent low-temperature toughness
- 🔸 Preferred for new engineering projects
Best for: New EPC projects, offshore engineering, power plants, and infrastructure developments.
- 🔸 Normalized structural steel
- 🔸 Excellent weldability
- 🔸 Reliable mechanical performance
Best for: Structural fabrication, industrial buildings, and heavy engineering.
- 🔸 Impact tested at 0°C
- 🔸 Cost-effective structural solution
- 🔸 Good strength and fabrication properties
Best for: Bridges, commercial buildings, engineering structures, and general industrial projects.