Square steel tubing

The structure of the square tube and rectangular tube has the advantages of the shear center, coincident center, good torsion resistance, greater bending rigidity, and beautiful appearance. Square and rectangular steel pipes are generally: structural use is mainly used for welding bridges, buildings and structures, riveting and spiral connection of square, rectangular or special shape cold-formed carbon steel welded steel pipes and seamless steel pipes.

The large-diameter thick-walled square steel pipe is formed by pressure bending and then welded by submerged arc welding, which is different from the general electric welded steel pipe process. After welding, the weld is then annealed by medium frequency induction heating.

Square steel tube specification

SizesSquare pipe: 30*30mm-1000*1000mm
Rectangular pipe: 30*60mm~500*1000mm
Thickness: 1.2mm~20mm
Length: 2.0m~12m
Steel Grade10#-45#,A53-A369,Q195-Q345
StandardJIS G3302,JIS G3312,GB/T-12754-2006,ASTM A653M
CertificatesISO 9001 / ISO 18001 / ISO 14001 / CE
UsageConstruction / building materials steel pipe
Structure steel pipe
Solar structure component steel pipe
Fence post steel pipe
Greenhouse frame steel pipe
SurfaceBlack painting, varnish paint, anti rust oil, hot galvanized, cold galvanized

Square tubing for sale

The square tube, as the name suggests, is a square steel tube, which is unpacked, flattened, crimped, and welded to form a round tube. The round tube is rolled into a square tube and then cut to the required length. Square pipes are divided into structural square pipes, decorative square pipes, construction square pipes, mechanical square pipes, etc. according to their uses.

It is section steel with a square cross-section shape and size made of q235 hot-rolled or cold-rolled steel strip or coil as the base material, which is formed by cold bending and then high-frequency welding.

Classification of square tube

According to the production process, the square tube is divided into extruded seamless square tube, welded square tube, cold drawn seamless square tube, hot rolled seamless square tube. Among them, the welding square tube is divided into:

(a) According to the process-gas welding square tube, arc welding square tube, furnace welding square tube, resistance welding square tube

(b) According to welds-spiral welded square pipe, straight-seam welded square pipe

Related Products

Galvanized Steel Coil

Hot Dipped Galvanized Steel Sheet in Coil (GI) is produced by passing the Full Hard sheet which has undergone the acid washing process and rolling

PPGL Steel Coil

PPGL Coil uses DX51D+AZ, and q195 and galvalume steel sheet as the substrate, PE coating is our most commonly produced, it can be used for up to 10 years.

Prepainted Steel Coil

PPGI Steel Coil Specification PPGI Coil Price Reference The prepaint galvanized steel coil prices keep changing, which is calculated based on raw material(Hot rolled sheet),