Product Discription
1. Material: Q235/Q345

2. Grade:
S235, A53 Grade B, A500 Grade A, STK400, SS400, and ST42.2 are all equivalent to Q235.
Q345 = S355JR / A500 Grade B Grade C

The standards for steel pipes include EN10219, EN10210, GB/T 6728, JIS G3466, ASTM A500, and A36. These codes are used to ensure the quality and performance of the pipes, and they dictate specifications for their design, manufacture, and testing. EN10219 and EN10210 are European standards, while GB/T 6728 is a Chinese standard, and JIS G3466 is a Japanese standard. ASTM A500 and A36 are American standards. Each standard has its own set of requirements, which must be met by manufacturers in order to produce pipes that are safe and effective for their intended use.

4. Surface:
1) Black,Pre-galvanized;
2) Oiled,powder coating;
3) Galvanized as your requirement;
PS:pre-galvanized (Zinc coating: 40-60g/m2)
The material that has undergone a hot-dipping process and has been galvanized with a zinc coating of 120, 160 or 180g/m2 is commonly referred to as hot-dipped galvanized. The zinc coating provides excellent protection against corrosion and rust, making it a popular choice for various applications that require durability and longevity. This process involves immersing the metal in molten zinc, allowing the zinc to bond with the surface of the metal, resulting in a strong, protective layer. Hot-dipped galvanized materials are commonly used in construction, automotive, and electrical industries due to their strength and resistance to damage caused by environmental factors.

5. Outer Dia(mm): 15*15mm-400*400mm

6. Wall Thickness(mm): 0.6-12mm

7. Length: 5.8-12m

8. Application:
* Construction / building materials steel pipe
* Structure steel pipe
* Solar structure component steel pipe
* Fence post steel pipe
* Greenhouse frame steel pipe

Steel Square Tube
When it comes to toughness, resilience, and tolerance to extreme weather and environmental conditions, hot rolled square steel tubing stands out. Its sturdy construction makes it a top choice for both industrial and domestic purposes. Additionally, it is easy to customize thanks to its malleability and ductility. Welding, shaping, and drilling the tubing are integral to many applications, and this type of steel tubing comes through with each task with ease.

Production Process

Inspection

Packing & Delivery

Square Welded Steel Pipe