Description
EN 10219-1 S235JRH (1.0039); S275J0H (1.0149); S275J2H (1.0138); S355J0H (1.0547); S355J2H (1.0576) Structural Steel Tubing
Introduction
EN 10219-1 is a European standard that specifies the technical delivery conditions for cold-formed welded structural hollow sections of non-alloy and fine grain steels. This article focuses on the structural steel tubing grades S235JRH, S275J0H, S275J2H, S355J0H, and S355J2H, which are commonly used in various construction and engineering applications.
Material Specification
EN 10219-1 specifies the material requirements for these structural steel tubing grades. The key features, chemical composition, and mechanical properties of each grade are outlined below.
Key Features
- Cold-formed welded construction
- High strength and durability
- Excellent weldability
- Good formability
- Suitable for various structural applications
Chemical Composition
| Grade | C% | Si% | Mn% | P% | S% |
|---|---|---|---|---|---|
| S235JRH | 0.17 | 0.35 | 1.40 | 0.040 | 0.040 |
| S275J0H | 0.20 | 0.40 | 1.50 | 0.035 | 0.035 |
| S275J2H | 0.20 | 0.40 | 1.50 | 0.030 | 0.030 |
| S355J0H | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 |
| S355J2H | 0.22 | 0.55 | 1.60 | 0.030 | 0.030 |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|
| S235JRH | 235 | 360-510 | 24 |
| S275J0H | 275 | 430-580 | 20 |
| S275J2H | 275 | 430-580 | 20 |
| S355J0H | 355 | 510-680 | 20 |
| S355J2H | 355 | 510-680 | 20 |
Steel Grade and Application
The steel grades mentioned above are widely used in various structural applications, including but not limited to:
- Building and construction
- Infrastructure projects
- Bridges
- Machinery and equipment
- Automotive industry
- Offshore structures
- Energy-related projects
These grades offer excellent strength and structural integrity, making them suitable for a wide range of applications in different industries.
Possible Alternative Grades
While the mentioned grades have their specific properties and applications, there are alternative grades available that may be suitable for similar purposes. Some possible alternative grades include:
- S235JR (1.0038)
- S275JR (1.0044)
- S355JR (1.0045)
- S355J2 (1.0577)
These alternative grades offer similar characteristics and can be considered as substitutes depending on the specific requirements of the project.
