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S355JR is a structural grade steel that is often used in the construction industry. It has excellent strength and weldability characteristics. The term “Hollow Section” refers to a variety of shapes of hollow structural sections, including rectangular and square shapes.
Thus, a S355JR Hollow Section Rectangular or Square Steel Pipe would be a hollow, square or rectangular sectioned pipe made out of S355JR grade steel.
Here are some key features of a typical S355JR Hollow Section Steel Pipe:
S355JR Hollow Section Rectangular/Square Steel Pipe
- Material: S355JR grade steel, a structural steel grade that offers high yield and tensile strength. It’s often used in structural applications such as bridges, buildings, and load-bearing structures.
- 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 30mm.
- 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- S355JR in Europe, ASTM A500 in USA or IS 4923 in India.
Remember, the exact specifications will depend on the manufacturer and the intended use of the steel pipe.
| Property | Description | | --- | --- | | **Material** | S355JR 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 30mm | | **Surface Treatment** | Painting, galvanizing, oiling, etc. | | **Standard** | Varies, e.g. EN 10219- S355JR, ASTM A500, IS 4923 |
Before purchasing any steel product, it’s important to confirm that its specifications, including dimensions, grade, and treatment, meet the requirements of your specific application.
|Grade :||S355JR Hollow Section Rectangular/Square Steel Pipe|
|Classification:||Non-alloy quality structural steel|
|Nominal thickness =< 30(mm) CEV max = 0.45|
|max 0.24||max 0.55||max 1.6||max 0.04||max 0.04||max 0.012||max 0.55||max 0.47|
Mechanical properties of grade S355JR (1.0045)
|Nominal thickness (mm):||to 3||3 – 100||100 – 150||150 – 250|
|Rm – Tensile strength (MPa) Flat and long products||510-680||470-630||450-600||450-600|
|Nominal thickness (mm):||to 16||16 – 40||40 – 63||63 – 80||80 – 100||100 – 150||150 – 200||200 – 250|
|ReH – Minimum yield strength (MPa) Flat and long products||355||345||335||325||315||295||285||275|
|KV – Impact energy (J) longitud.,||-20°
|Nominal thickness (mm):||to 1||1 – 1.5||1.5 – 2||2 – 2.5||2.5 – 3|
|A – Min. elongation Lo = 80 mm (%) parallel,||14||15||16||17||18|
|Nominal thickness (mm):||3 – 40||40 – 63||63 – 100||100 – 150||150 – 250|
|A – Min. elongation Lo = 5,65 √ So (%) parallel,||22||21||20||18||17|