SQUARE HOLLOW SECTIONS

Square Tube & Pipe, Square Hollow Section (SHS), Carbon Steel Square Tube, Square Structural Steel Tubing

Standard

EN 10210: S235JRH,S355J2H,S355NH,S355J0H
EN 10219: S235JRH,S355J2H,S355NH,S355J0H
ASTM A500: Gr.A,Gr.B,Gr.C

Types

Stainless square tube,

Galvanized square tube,

MS square tube

Square tube: Square tube is a hollow square cross-section lightweight thin-walled steel tube, that is, a steel tube with equal side lengths. Its structure is simple and stable, and it has high load-bearing capacity. The specifications of square tubes are usually expressed in terms of side length and wall thickness.

Square tubes are divided into seamless and welded seams. Seamless square tubes are made by perforating and extruding seamless round tubes. ‌Welded square tubes are rolled from strip steel through process treatment. Generally, the strip steel is unpacked, flattened, curled, and welded to form a round tube. The round tube is then rolled into a square tube and then cut to the required length.

Classification of square tubes:
Square tubes are divided according to the production process: hot-rolled seamless square tubes, cold-drawn seamless square tubes, extruded seamless square tubes, and welded square tubes.

Among them, welded square tubes are divided into:
(a) According to the process - arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube
(b) According to welding seam - straight seam welded square tube, spiral welded square tube

Square tubes are divided according to surface treatment: hot-dip galvanized square tube, electro-galvanized square tube, oil-coated square tube, pickled square tube
Square tubes are classified by use: square tubes for decoration, square tubes for machine tools, square tubes for machinery industry, square tubes for chemical industry, square tubes for steel structures, square tubes for shipbuilding, square tubes for automobiles, square tubes for steel beams and columns , special purpose square tube

Features of square tube:
High strength: Square tubes have high tensile, compressive and bending strengths, can withstand large loads and pressures, and are suitable for the production of various structural parts.
Good stability: The square tube has high dimensional accuracy, stable structure, and is not easy to deform, which can ensure that the processed products have high precision and stability.
Good corrosion resistance: After surface treatment such as galvanizing and plastic spraying, square pipes have good corrosion resistance and can adapt to various complex environments.
Low cost: The production cost of square tube is relatively low and easy to process, making it suitable for large-scale production and application.