S235JRH is another common structural steel grade. Like S355JR, it is used in a variety of structural applications, but S235JRH has a lower yield strength.
A S235JRH Hollow Section Rectangular/Square Steel Pipe would thus be a hollow, square or rectangular sectioned pipe made out of S235JRH grade steel.
Here are some key features of a typical S235JRH Hollow Section Steel Pipe:
S235JRH Hollow Section Rectangular/Square Steel Pipe
- Material: S235JRH grade steel, a structural steel grade that offers lower yield strength than S355JR, but still has good machinability and weldability. It’s often used in structural applications where lower strength is acceptable.
- Shape: Hollow, with a rectangular or square cross-section. These shapes are often used where strong resistance to torsion is required.
- Size: Sizes can vary greatly depending on the application. Common sizes for the square pipes range from 20x20mm to 500x500mm, while the rectangular pipes might range from 40x20mm to 400x200mm.
- Wall Thickness: This can also vary greatly, but common thicknesses might range from 1.5mm to 20mm.
- Surface Treatment: Pipes can be treated in a variety of ways to protect against corrosion, improve appearance, or enhance mechanical properties. Common surface treatments include painting, galvanizing, or oiling.
- Standard: Compliance to certain standards depending on the region such as EN 10219- S235JRH in Europe, ASTM A500 in USA or IS 4923 in India.
Here’s the information in table form:
| Property | Description |
| --- | --- |
| **Material** | S235JRH grade steel |
| **Shape** | Hollow, rectangular or square |
| **Size** | Varies, commonly 20x20mm to 500x500mm (square), 40x20mm to 400x200mm (rectangular) |
| **Wall Thickness** | Varies, commonly 1.5mm to 20mm |
| **Surface Treatment** | Painting, galvanizing, oiling, etc. |
| **Standard** | Varies, e.g. EN 10219- S235JRH, ASTM A500, IS 4923 |
Remember, the exact specifications depend on the manufacturer and the intended use of the steel pipe. Always ensure the specifications meet the requirements of your specific application.
Grade : |
S235JRH Hollow Section Rectangular/Square Steel Pipe |
Number: |
1.0039 |
Classification: |
Non-alloy structural steel |
Standard: |
EN 10210-1: 2006 Hot finished structural hollow sections of non-alloy and fine grain steels. Technical delivery requirements |
EN 10219-1: 2006 Cold formed welded structural hollow sections of non-alloy and fine grain steels. Technical delivery requirements |
|
Chemical composition % of grade S235JRH (1.0039): EN 10210-1-2006
Method of deoxidation FN = rimming steels not permitted
C < 0.17 for thickness =< 40 mm, CEV < 0.37 / 0.44 for thickness 16 / 65 mm |
C |
Mn |
P |
S |
N |
max 0.2 |
max 1.4 |
max 0.04 |
max 0.04 |
max 0.009 |
Mechanical properties of grade S235JRH (1.0039)
Nominal thickness (mm): |
to 3 |
3 – 100 |
100 – 120 |
Rm – Tensile strength (MPa) |
360-510 |
360-510 |
350-500 |
Nominal thickness (mm): |
to 16 |
16 – 40 |
40 – 63 |
63 – 80 |
80 – 100 |
100 – 120 |
ReH – Minimum yield strength (MPa) |
235 |
225 |
215 |
215 |
215 |
195 |
KV – Impact energy (J) |
+20°
27 |
Nominal thickness (mm): |
to 40 |
40 – 63 |
63 – 100 |
100 – 120 |
A – Min. elongation at fracture (%) longitude., |
26 |
25 |
24 |
22 |