S235JRH steel pipe is a type of structural hollow section made from a non-alloy quality steel grade defined by the European standard EN 10219. The designation "S235JRH" itself provides key information about the material's properties: 'S' stands for structural steel, '235' indicates a minimum yield strength of 235 Megapascals (MPa), and 'JRH' specifies the impact energy properties at room temperature and the delivery condition (hot rolled).
This grade is renowned for its excellent weldability and good formability, making it a highly versatile and widely used material in various construction and engineering applications. The steel's chemical composition is carefully controlled, with limited levels of carbon, phosphorus, and sulfur, which contributes to its reliable mechanical performance and ease of fabrication.
S235JRH steel pipes are manufactured as both circular (CHS - Circular Hollow Sections) and square or rectangular (RHS - Rectangular Hollow Sections) hollow sections. This structural efficiency offers an exceptional strength-to-weight ratio, providing significant load-bearing capacity while minimizing the overall weight of a structure.
**Primary applications include:**
* **Construction:** Used extensively in the framework for buildings, industrial halls, warehouses, and commercial centers.
* **Structural Engineering:** Ideal for trusses, space frames, bridges, and other load-bearing structures.
* **Mechanical and Plant Engineering:** Employed in the construction of machinery frames, support structures, and conveyor systems.
* **General Fabrication:** A popular choice for handrails, safety barriers, fencing, and various architectural projects due to its clean appearance and ease of installation.
In summary, S235JRH steel pipe is a fundamental and cost-effective building block of modern industry. Its combination of guaranteed strength, excellent fabrication characteristics, and structural efficiency makes it a preferred choice for engineers and fabricators across a broad spectrum of projects.
|
Acc.to EN10027/1 |
Acc.to EN10027/2 |
C% max (Norminal W.T.(mm) |
Si% max
|
Mn% max
|
P% max
|
S% max
|
N% max
|
|
|
and IC 10 |
≤ 40 |
|||||||
|
S235JRH |
1.0039 |
0.17 |
0.2 |
- |
1.4 |
0.045 |
0.045 |
0.009 |
|
S275JOH |
1.0149 |
0.2 |
0.22 |
- |
1.5 |
0.04 |
0.04 |
0.009 |
|
S275J2H |
1.0138 |
0.2 |
0.22 |
- |
1.5 |
0.035 |
0.035 |
- |
|
S355JOH |
1.0547 |
0.22 |
0.22 |
0.55 |
1.6 |
0.04 |
0.04 |
0.009 |
|
S355J2H |
1.0576 |
0.22 |
0.22 |
0.55 |
1.6 |
0.035 |
0.035 |
- |
