- 1. Chemical composition and mechanical properties EN 10219 S355J0
- 2. Table 1: Chemical composition (melt and product analysis, in conjunction with Annex A of EN10219-1 and Tables 1, 3 of BS EN 10025-2)
- 3. Table 2: Mechanical properties (in combination with Annex A of EN10219-1 and Tables 6, 8 of BS EN 10025-2)
- 4. Meaning of symbols S355J0H
- 5. Common pipe dimensions EN 10219 S355J0H
- 6. Main applications of hollow sections S355J0H
- 7. Applicable countries and regions
- 8. Why choose LONGMA as your LSAW S355J0H pipe supplier?
What is EN10219 S355J0 hollow section(S355J0H LSAW Steel Pipe)？
In the field of metal structure, submerged arc welding EN10219 S355J0H straight seam pipe, as an important representative of cold-formed welded hollow sections, has become the material of choice in construction, bridge construction and other fields due to its stable mechanical properties and strict manufacturing standards. This paper analyzes the key performance and performance value of S355J0H in detail based on EN10219.
Chemical composition and mechanical properties EN 10219 S355J0
According to EN 10219-1:2006, S355J0H belongs to non-alloy structural steels, its chemical composition and mechanical properties are as follows:
Table 1: Chemical composition (melt and product analysis, in conjunction with Annex A of EN10219-1 and Tables 1, 3 of BS EN 10025-2)
| Element | Maximum value in melt analysis (%) | Permissible deviation in product analysis (%) | Notes (additions to BS EN 10025-2) |
| C | 0.22 | +0.03 (at ≤0.20 + 0.02) | For thickness > 30mm, ≤0.22 is allowed |
| Si | 0.55 | +0.05 | For cold deformation, ≤0.25 can be controlled |
| Mn | 1.60 | +0.10 | When calibrating hot, you can |
| P | 0.035 | +0.005 | For long products + 0.005 is allowed |
| S | 0.035 | +0.005 | When improving sharpness, you can increase it by agreement |
| N | 0.009 | +0.002 | When containing nitrogen-fixing elements such as Al, it can be mitigated |
| Method of distribution | Fully formed steel (FF) | – | Must contain sufficient amounts of nitrogen-binding elements (e.g. Al≥0.020%) |
Table 2: Mechanical properties (in combination with Annex A of EN10219-1 and Tables 6, 8 of BS EN 10025-2)
| Property Index | Value requirements | Test standard (supplement to BS EN 10025-2) |
| Yield strength（≤16mm） | ≥355 MPa | EN ISO 6892-1（Tensile at room temperature） |
| Yield strength（16-40mm） | ≥345 MPa | – |
| Tensile strength | 510-680MPa（≤16mm）；470-630MPa（16-40mm） | EN ISO 6892-1 |
| Relative elongation（≥3mm） | ≥20% (for special sections, a reduction of 2% is allowed) | Translation is carried out in accordance with EN ISO 2566-1 |
| Impact energy（0℃） | ≥27J（V-type notch, average value of 3 samples） | EN ISO 148-1（2mm pendulum） |
| Carbon Equivalent (CEV) | ≤0.47（thickness≤40mm） | Calculation formula: C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 |
The impact test temperature of S355J0H is 0 ℃ , the impact absorption energy is not less than 27J, which makes it suitable for medium cold conditions.
Meaning of symbols S355J0H
According to clause 4.2.2 of EN10219-1:2006, the meaning of the symbols S355J0H is as follows:
- EN10219: complies with the European standard “Cold formed welded hollow sections of non-alloy and fine grain steels”;
- S: stands for Structural steel;
- 355: indicates that the minimum yield strength of steel at a thickness of ≤16mm is 355MPa;
- J0: impact resistance class requiring the impact energy at 0 ℃ to be ≥27J;
- H: stands for Hollow section.
So, S355J0H is “cold formed welded hollow section conforming to EN10219 standard, with yield strength of 355MPa and satisfying impact strength requirement at 0 ℃ “, and direct seam underwater arc welding (LSAW) is one of its main production technologies.
Common pipe dimensions EN 10219 S355J0H
According to EN 10219-2, normal dimensions of submerged arc welding (LSAW) S355J0H pipes include:
- Outside diameter (OD): from Ø406mm to Ø1626mm
- Wall thickness (WT): from 6mm to 50mm
- Length(L): Can be customized, usually 6-12 meters
- Manufacturing method: cold deformation + LSAW (straight seam underwater arc welding)
All products are subject to strict tolerance control (according to EN 10219-2) and non-destructive testing (EN 10246 series standards).
Main applications of hollow sections S355J0H
Submerged arc welding (LSAW) S355J0H pipes with straight seam are widely used in the following areas due to their excellent mechanical properties and weldability:
- Building metal structures: high-rise building supports, bridge trusses and other load-bearing structures
- Mechanical engineering: lifting equipment, truss structures, etc.
- Port and dock structures: steel piles, dams
- Energy sector: wind power towers, pipeline supports, overhead power transmission systems
- Municipal buildings: subway supports, pedestrian bridges, lighthouse foundations
S355J0H cold forming technology enables high section accuracy, meeting the design requirements of complex structures.
Applicable countries and regions
EN 10219 S355J0H pipes are widely used in the European Union, the United Kingdom, Southeast Asia, the Middle East, Australia and other regions. In particular, this standard is widely applied in construction and infrastructure projects in the following countries:
- UK (BS EN 10219)
- Germany, France, Spain, Italy and other EU countries
- Singapore, Malaysia, UAE and other countries using the European system of standards
- The Australian and New Zealand Building Standards systems accept the EN standard as an alternative
Why choose LONGMA as your LSAW S355J0H pipe supplier?
LONGMA (Hebei Longma Steel Pipe Manufacturing Co., Ltd) is a leading EN 10219 round pipe manufacturer in Hebei, China, specializing in producing ERW and LSAW pipes, with an annual output of 10,000 tons. The advantages of choosing LONGMA include:
- Strict control of standards: full compliance with EN 10219-1 and EN 10219-2 requirements, provision of EN 10204 3.1 or 3.2 inspection certificates;
- Quality assurance throughout the entire process: raw material purchase, welding, straightening, non-destructive testing, lubrication, packaging – all stages can be traced;
- Advantages of large sizes: Particularly good at producing large LSAW round pipes Ø508–1626mm, meeting the needs of large projects;
- Rich export experience : the products have been exported to more than 30 countries including the EU, UK, Singapore, Australia, New Zealand, Peru and so on, and enjoy good reputation among customers;
- Quick service response: Professional foreign trade team provides customized project support, quickly responding to customers’ technical and commercial requests.
EN 10219 S355J0H hollow section as a structural steel product combining high strength and good weldability is suitable for various heavy-duty service conditions and structural application scenarios. Choosing us will provide your project with significant advantages in terms of quality, delivery time and cost control.
