E-mail: info@pipesl.com

Mild Steel Square Tube-square tubing

Mild Steel Square Tube-square tubing is suitable for welding and painting, easy to machine cut and drill. It is also ideal for fabrication, frameworks and structural applications. Its high strength, lightweight, and corrosion resistance expand the wide usage in structural engineering. The processing technology is easy with low cost and it can be used repeatedly.
Type: square steel tube, SHS tube, square steel tubing
Application: Industrial Construction, Machinery/Rack/Container, etc
OD: 10*10mm-500*500mm, WT: 0.5-50mm, L: 0.3-18mtr
Standard & Grade: ASTM A500, ASTM A53, EN10210, EN10219, JIS G3466, BS1387, BS6323
End: Square cut, Burr removed
Product Details

What is the mild steel square tube?

The square tube is a welded hollow square-cut steel tube that is specifically designed to be used in all types of construction projects. Either the type A513 or A500 Grade B, depending on its size and wall thickness. The square steel tube shape design allows for increased rigidity and strength compared to other steel product shapes. For the grade ideal for all structural applications, general fabrication, manufacturing, and repairs. Square steel tubes can also be cut, formed, machined, and welded to your exact specification. The shape configuration allows for much greater strength and rigidity compared to angles or channels. This steel tube shape is easy to weld, cut form, and machine with proper equipment and knowledge.

Material of hollow section

ASTM A500 Grade B
ASTM A513 (1020-1026)
ASTM A36 (A36)
EN 10210:S235,S355,S235JRH,
S355J2H,S355NH EN 10219:S235,S355,S235JRH, 
S275J0H, S275J2H, S355J0H, S355J2H

S275J0H, S275J2H, S355J0H, S355J2H

Rectangular/ Square hollow section manufacturing process

Rectangular/ Square hollow section are formed from coils and then ran through a series of dies. They are are welded from the inside to form their shape.

Process of hollow section

Cold Formed Square Hollow Section
Cold Formed Rectangular Hollow Section
Hot Finish Square Hollow Section
Hot Finish Rectangular Hollow Section

A500 Gr-B

Standard specification published by the ASTM for cold-formed welded and seamless carbon steel structural tubing in round, square, and rectangular shapes.


Offers high weldability and is used frequently in structural applications in bridges and buildings as well as in both the automotive and appliance industry.

Carbon Steel Structural Hollow Sections Packaging and Advantages

Types of Packaging:
Bundles (hexagonal)
Wooden Boxes
Crates (steel/wooden)
Special crates for Structural Hollow Sections with each radius separated
Packaging for Carbon Steel Seamless Pipe as per customer’s requirements

Mild Steel Square Tube Advantages:

High Strength
Resistant High Mechanical Stresses
Resistant to High Pressure
Resistant to High Temperature
Good Formality

Stainless Hollow Section


Offers resistance to corrosion, has good formability and can be readily welded by all methods. One of the most commonly used grades across the industry.


Extra low carbon avoids harmful carbide precipitation due to welding. Same corrosion resistance as 304 with lower mechanical properties.


Better pitting and corrosion resistance than 304, as well as higher strength at elevated temperatures. 316 can be used for valves, marine equipment, pumps, and chemical equipment.


Extra low carbon avoids harmful carbide precipitation due to welding. Same excellent corrosion resistance as 316. It exhibits the same high strength, toughness and workability as 304 alloys.

Online Message
Related Products
Our Service

Factory prefabrication of processing pipelines

2023-12-18 15:37:29
Factory prefabrication of processing pipelinesProcess pipeline is used to transmit medium, which is connected with all the equipment in the device, and through various control components to adjust the

Customized Design and special-shaped pipe fittings processing

2023-12-18 15:37:30
Offering customized drawing design and confirmation services for special-shaped pipes, fittings, valves, etc. From design, and drawing confirmation, to the final product.We Cangzhou Shenlong Pipe Manu

Final Inspection

2023-12-18 15:37:33
Firstly,  the professional QC do the tests and inspection as per customers’ requirement or standardsItems:Visual Inspectionsa. Inspect and take measurements of the thickness of the pipes and ensure th

Packing and marking

2023-12-18 15:37:34
One-stop packing and transportation services can be offered. We can provide packing solutions as per clients’ demands. such as the bulk cargo whole cabinet plan, reinforcement protection, taking pictu

Steel Pipe Coating

2023-12-18 15:37:35
To make steel pipes with an anti-corrosion effect refers to measures to slow down or prevent corrosion and deterioration of pipes under the chemical or electrochemical action of the internal and exter


2023-12-18 15:37:36
Galvanized is one surface treatment that makes the surface of the metal, alloy, or other materials coated with a layer of zinc. In this way, the steel pipes can be more attractive, as well as a rust p


2023-12-18 15:37:40
Steel pipes and fittings service projects include oil and gas pipeline companies, as well as utilities. Our services are not limited to pipelines, terminals, refineries, and processing facilities. as

Pipe Threading

2023-12-18 15:37:42
Threaded pipes have an effective seal when transporting liquids, gases, steam, and hydraulic fluid. We are also to thread any length of pipe in diameters ranging from 1/8” to 20”. Tapers available are

Roll Grooving

2023-12-18 15:37:43
Cangzhou shenlong pipe manufacturer co.,ltd. can provide both cut grooving and roll grooving. Cut and roll grooving can be done in any style according to industry standards. Cut grooving involves mach

Steel Pipe Beveling

2023-12-18 15:37:44
Beveling is the process in which we form an angle between the edge of a pipe and a plane perpendicular to the surface to a certain degree, most commonly used to prepare the ends of pipes for welding.


2023-12-18 15:37:45
We can provide customized cutting to size pipes for natural gas so that the pipes can be easier applied to your project. If you are buying sheets, tubes, plates, or shapes at the required length, plea

Steel Pipe Storage

2023-12-18 15:37:37
After steel pipes are produced as ordered, our experienced yard staff and our warehousing department will arrange cargo handling, storage, and storing of steel products in our facilities temporarily a
 Privacy settings
Consent to Cookies & Data processing
On this website we use cookies and similar functions to process end device information and personal data. The processing is used for purposes such as to integrate content, external services and elements from third parties, statistical analysis/measurement, personalized advertising and the integration of social media. This consent is voluntary, not required for the use of our website and can be revoked at any time using the icon on the bottom left.