Cold Formed Square Hollow Section

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 25-35 m.t.

Supply Capability:: -

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Quick Details

Thickness:	1.0 - 35 mm	Section Shape:	Square	Outer Diameter:	2020-600600
Place of Origin:	Shandong China (Mainland)	Secondary Or Not:	Non-secondary	Application:	Structure Pipe
Technique:	Cold Rolled	Certification:	CE	Surface Treatment:	oil,paint
Special Pipe:	Thick Wall Pipe	Alloy Or Not:	Non-alloy	Name:	Square Hollow Steel Pipe/Tube
Shape:	Square/Rectangular	Yield Strength:	360-380Mpa	Tensile Strength:	560-580Mpa
Elongation:	24-28%	Bend Test:	Qualified	Impact Value:	V-notch
Grade:	20#,45#,16Mn,A210,St45,Q235,Q345,Q195,Q215,10#-45#,A53-A369,ST35-ST52,Q195-Q345	Standard:	JIS G3465-2006,JIS G3466,GB/T 3094

Specifications

OD:15X15-800X800MM,20X30--600X800MM
Thick.:1.0--35.0MM

Steel Hollow Section Image

Cold formed Square Hollow Section

FAQ of Steel Hollow Section

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !

Q: What does seamless steel tube mean? What are the main uses? What are the classifications?: The production process of seamless steel tube in general can be divided into two kinds of hot rolling and cold drawing, cold-rolled seamless steel pipe production process than hot-rolled billet to complex, first to three roller rolling and extrusion to sizing test, if the tube through the cutting machine cutting surface without crack growth response after cutting blank about one meter. Then enter the annealing process, annealing and pickling to use acid pickling liquid, should pay attention to the surface if there are a lot of bubbling, if there are a large number of bubbling pipe shows that the quality is not up to the standard. The appearance of cold rolling seamless steel tube shorter than hot-rolled seamless steel pipe, cold rolled seamless steel pipe wall thickness is generally higher than hot-rolled seamless steel pipe to be small, but the surface looks better than thick wall seamless steel pipe is more bright, rough surface is not too much, not too much burr diameter.

Q: How are steel pipes used in the construction of dams and water reservoirs?: Steel pipes find widespread application in the construction of dams and water reservoirs owing to their remarkable durability, strength, and capacity to endure heavy loads and high pressure. These pipes serve multiple indispensable functions within the realm of dam and reservoir construction. A primary utility of steel pipes in these structures lies in their capacity to transport water. They are employed to convey water from its source, such as a river or stream, to the reservoir or dam. These pipes are engineered to withstand the elevated water pressure, ensuring a consistent flow of water to the reservoir. The durability of steel pipes enables them to remain intact even in the harshest environmental conditions. In addition to water conveyance, steel pipes are also utilized for drainage purposes. They are employed to establish drainage systems that help regulate the water level within the reservoir or dam. These pipes are strategically positioned to control the water flow and prevent potential flooding or overflow. Steel pipes are also integrated into the construction of spillways and outlets in dams and reservoirs. Spillways are designed to release excess water from the reservoir during heavy rainfall or when the water level exceeds predetermined thresholds. Steel pipes are employed in crafting these spillways to provide a controlled pathway for water discharge, thus averting any harm to the dam or surrounding areas. Moreover, steel pipes are employed in the construction of penstocks, which are large conduits that transport water from the reservoir to turbines in hydropower plants. The pressure generated by the water within these pipes propels the turbines, facilitating electricity generation. The robustness and durability of steel pipes are vital in ensuring the smooth and efficient operation of hydropower plants. All in all, steel pipes occupy an indispensable role in the construction of dams and water reservoirs. Their durability, strength, and ability to withstand high pressure render them an ideal choice for various aspects of these structures, including water transportation, drainage systems, spillways, and penstocks.

Q: Will the steel tube dance?: The steel tube dance tube has a rotating steel tube and a fixed steel tube, so that different types of steel pipe can be chosen according to the type of pipe dance performed by the dancer.

Q: How are steel pipes tested for leakage?: Steel pipes are tested for leakage using various methods, including hydrostatic testing, pneumatic testing, and ultrasonic testing. Hydrostatic testing involves filling the pipe with water or another liquid and subjecting it to high pressure to check for any leaks. Pneumatic testing, on the other hand, involves pressurizing the pipe with air or gas to detect any leakage. Ultrasonic testing utilizes sound waves to identify any defects or leaks in the pipe by measuring the time it takes for the sound waves to bounce back. These testing methods ensure that steel pipes meet the required standards and are free from any leakage.

Q: What are the different types of steel pipe flanges?: There are several types of steel pipe flanges, including slip-on flanges, weld neck flanges, socket weld flanges, threaded flanges, blind flanges, and lap joint flanges. Each type has unique features and is used in specific applications based on factors such as pressure ratings, pipe size, and end connections.

Q: What are the common defects found in steel pipes?: Some common defects found in steel pipes include corrosion, cracks, pitting, scaling, and distortion.

Q: What are the different methods of pipe support for steel pipes?: There are several methods of pipe support for steel pipes, including clamps, hangers, brackets, and guides. Clamps are used to secure pipes to a structure, while hangers suspend the pipes from overhead supports. Brackets provide lateral support and stability, and guides are used to control pipe movement and prevent excessive sagging. These various methods ensure the proper installation and stability of steel pipes in different applications.

Q: What is the lifespan of galvanized steel pipes?: The lifespan of galvanized steel pipes can vary depending on various factors such as the quality of the galvanization, the environment in which they are installed, and the maintenance they receive. However, on average, galvanized steel pipes can last between 40 to 70 years.

Q: How are steel pipes used in the transportation of liquids and gases?: Due to their durability, strength, and resistance to corrosion, steel pipes find wide applications in the transportation of liquids and gases. Various industries such as oil and gas, water supply, and chemical processing commonly employ them. For the transportation of liquids, steel pipes serve as conduits for crude oil, refined petroleum products, water, and other fluids. These pipes are designed to withstand high pressure and maintain the integrity of the liquid being transported. The smooth inner surface of steel pipes minimizes friction, enabling efficient flow and reduced energy consumption. Moreover, the strength of steel pipes ensures that they can support the weight of the liquid without deformation or failure. In gas transportation, steel pipes are indispensable for the safe conveyance of natural gas, propane, and other compressed gases over long distances. These pipes are engineered to endure high pressures and extreme temperatures. They are also designed to prevent leakage, which is of utmost importance when dealing with flammable or toxic gases. The strength and durability of steel pipes make them ideal for withstanding the stress and strain that may occur during gas transportation. Additionally, steel pipes are frequently utilized in the construction of pipelines for long-distance transportation of liquids and gases. These pipelines can span hundreds or even thousands of kilometers, and steel pipes are the preferred choice due to their high strength and long-term reliability. They can bear the weight of the pipe and the substance being transported, as well as external forces such as soil pressure and temperature fluctuations. In summary, steel pipes play a vital role in the transportation of liquids and gases. Their durability, strength, and resistance to corrosion make them the preferred choice for conveying various substances over long distances. Whether it is for oil and gas, water supply, or chemical processing, steel pipes ensure the safe and efficient transportation of fluids and gases, contributing to the functioning of various industries and economies worldwide.

Q: How do steel pipes perform in high-temperature applications?: Steel pipes perform well in high-temperature applications due to their high thermal conductivity and excellent resistance to heat. They can withstand extreme temperatures without deformation or structural failure, making them suitable for transporting hot fluids or gases in industrial processes.

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