A Complete Guide To EN 10219 S355J2H Square Hollow Section
2026-08-12
A Complete Guide To EN 10219 S355J2H Square Hollow Section
The EN 10219 S355J2H square pipe is a cold-formed welded structural square pipe manufactured in full compliance with the EN10219 standard. Featuring the premium S355J2H steel grade, this standard square pipe delivers reliable high load-bearing performance and outstanding low-temperature toughness. Widely recognized in modern structural engineering, it is an ideal tubular solution for construction, mechanical structures, and outdoor projects that demand superior strength, stability, and excellent low-temperature resistance.
Product Specification Parameters of EN 10219 S355J2H Square Pipe
Our EN 10219 S355J2H square pipe is fully manufactured in compliance with the EN10219 standard, the authoritative European specification for cold-formed welded hollow sections of non-alloy and fine grain steel. As a high-grade structural square pipe built for heavy-duty projects, it features stable mechanical properties and flexible size options to fit global construction and mechanical engineering requirements. Below are the detailed technical specifications:
- Executive Standard: Strictly follows the BS EN 10219 standard, ensuring every EN 10219 S355J2H square pipe meets European structural steel manufacturing criteria.
- Steel Grade: S355J2H, a low-temperature resistant structural grade tailored for high-strength square pipe applications.
- Production Type: Cold formed, ERW welded construction, delivering seamless structural stability for EN10219 standard tubular products.
- Size Range: Outer dimension from 20×20mm to 400×400mm; wall thickness covers 0.5mm to 25mm, covering most conventional and custom structural project sizes.
- Custom Length: Standard factory length ranges from 6000mm to 12000mm, with customizable cutting available for all EN 10219 S355J2H square pipe specifications.
- Dimensional Tolerance: Uniform wall thickness tolerance of ±10% for all sizes, guaranteeing high precision and assembly consistency.
Surface Protection Options
- Original black self-coloured finish for regular structural use
- Anti-rust varnish and oil coating for improved oxidation resistance
- Pre-galvanized and hot dip galvanized treatment for superior corrosion resistance
Packaging & Finishing Standards
- All EN10219 standardEN 10219 S355J2H square pipe is tightly bundled with professional anti-corrosion and heat-preservation packaging for long-distance transportation.
- Pipe ends support square cut or beveled processing, matched with end caps for dust and moisture protection.
- Complete certification documents and supplementary performance test reports are provided, with standard identity marking and fine finishing for full quality traceability.
Chemical Composition of S355J2H Cold Formed Square Hollow Section
| Steel Grade | C | Si | Mn | P | S | Cu | CEV |
| S355J2H | 0.22 | 0.55 | 1.6 | 0.03 | 0.03 | 0.55 | 0.45 |
