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: Can steel pipes be used for underground oil pipelines?: Yes, steel pipes can be used for underground oil pipelines. Steel pipes are commonly used for this purpose due to their strength, durability, and resistance to corrosion. They are capable of withstanding the high pressure and extreme conditions associated with oil transportation underground.

Q: What are the different methods of testing steel pipes?: There are several methods used for testing steel pipes, including visual inspection, ultrasonic testing, radiographic testing, magnetic particle testing, and hydrostatic testing. Visual inspection involves examining the pipes for any surface defects or abnormalities. Ultrasonic testing uses sound waves to detect flaws or inconsistencies within the pipes. Radiographic testing involves using X-rays or gamma rays to produce images of the pipes and identify any defects. Magnetic particle testing uses magnetic fields and magnetic particles to detect surface or near-surface defects in the pipes. Hydrostatic testing involves pressurizing the pipes with water to ensure they can withstand the specified pressure without leaks or failures.

Q: What is the maximum length of steel pipes available?: The maximum length of steel pipes available can vary depending on the specific manufacturer and supplier. However, in general, steel pipes can be found in lengths ranging from 18 feet to 40 feet or even longer.

Q: What are the different types of steel pipe connections?: The different types of steel pipe connections include threaded connections, welded connections, flanged connections, and grooved connections.

Q: How are steel pipes used in the pulp and paper industry?: Steel pipes are commonly used in the pulp and paper industry for various applications including transporting water, steam, and chemicals throughout the manufacturing process. They are also used for conveying pulp and paper products, as well as for supporting structures such as boiler systems and storage tanks.

Q: What are the common methods for joining steel pipes?: Different methods exist for joining steel pipes, depending on specific applications and requirements. Some commonly employed techniques include the following: 1. Welding: Among the most frequently used methods to join steel pipes, welding involves heating the pipe ends and applying pressure to fuse them. Various techniques can be employed, such as arc welding, MIG welding, TIG welding, and even laser welding. 2. Threaded connections: This method involves threading the ends of steel pipes to create male and female connections. These threaded ends are then screwed together using pipe threads. Threaded connections are typically utilized for smaller diameter pipes and in low-pressure applications. 3. Flanged connections: Flanges are employed to join steel pipes in situations that necessitate easy assembly and disassembly or frequent maintenance. Flanges are flat, circular discs with bolt holes that allow for the bolting of pipes together. They offer a robust and leak-proof connection. 4. Compression fittings: Compression fittings enable the joining of steel pipes without the need for welding or threading. They consist of a compression nut, compression ring, and compression sleeve. The nut is tightened onto the sleeve, compressing it against the pipe and creating a secure connection. 5. Grooved couplings: Mechanical connections are created with grooved couplings, which are utilized to join steel pipes. The pipe ends are grooved, and a gasket is inserted between the grooves. The couplings are then tightened, compressing the gasket and forming a tight seal. 6. Soldering or brazing: These methods involve the use of filler metal with a lower melting point than the steel pipes. The filler metal is heated and melted, allowing it to flow between the pipe joints and create a bond. Soldering is generally suited for smaller diameter pipes and low-pressure applications. Each joining method has its own advantages and limitations. The appropriate method for joining steel pipes depends on factors such as pipe diameter, application, working pressure, and required joint durability. It is crucial to consider these factors and consult industry standards and guidelines when selecting the suitable joining method for steel pipes.

Q: Galvanized steel pipe DN100 and SC100: Zinc plating, hot dip galvanizing and cold galvanizing, to see the design instructions and design requirements, which will explain

Q: What are the applications of galvanized steel pipes?: Galvanized steel pipes have a wide range of applications in various industries. They are commonly used in plumbing systems to deliver water and gas due to their excellent corrosion resistance. Additionally, they are used in the construction industry for structural purposes, such as scaffolding, fences, and handrails. Galvanized steel pipes are also utilized in the agricultural sector for irrigation systems and as posts for supporting crops. Furthermore, they find usage in oil and gas pipelines, HVAC systems, and automotive manufacturing. Overall, the applications of galvanized steel pipes are diverse, making them an essential material in multiple sectors.

Q: Are steel pipes suitable for underground mining applications?: Yes, steel pipes are suitable for underground mining applications. Steel pipes have been widely used in the mining industry for various purposes such as water supply, ventilation, and conveyance of materials. The strength and durability of steel pipes make them suitable for the harsh and demanding conditions of underground mining. Steel pipes are known for their high tensile strength, which allows them to withstand the pressure and stress exerted by the surrounding rock and earth in underground mining operations. They can handle heavy loads, making them suitable for transporting materials and supporting structures in mining tunnels. Additionally, steel pipes are resistant to corrosion, which is crucial in underground mining where moisture and various chemicals are present. Their corrosion resistance ensures the longevity and reliability of the pipes, reducing the need for frequent replacements and maintenance. Furthermore, steel pipes can be easily welded and joined, allowing for customization and flexibility in designing underground mining systems. They can be adapted to various shapes and sizes to meet specific mining requirements. In conclusion, steel pipes are highly suitable for underground mining applications due to their strength, durability, corrosion resistance, and versatility. They have been proven to be effective in supporting mining operations and ensuring the safety and efficiency of underground mining processes.

Q: How are steel pipes used in the construction of oil refineries?: Steel pipes are extensively used in the construction of oil refineries for various purposes. They are primarily used for transporting crude oil, refined petroleum products, and various chemicals within the refinery complex. Steel pipes are also utilized for the distribution of water, steam, and other fluids required for the refining processes. Additionally, they are employed in the construction of equipment such as heat exchangers, reactors, and storage tanks, where they provide structural support and ensure efficient fluid flow. Overall, steel pipes play a critical role in the reliable and safe operation of oil refineries.

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