Square Hollow Hot Rolled Steel Section

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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

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

Square Hollow Section Image

Square Hollow Hot Rolled Steel Section

FAQ of Square 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. 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:How are steel pipes used in the construction of shipbuilding?: Steel pipes are widely used in shipbuilding as they provide structural support and are essential for various systems and components such as ventilation, fuel, and water supply. They are used to create the framework of the ship, including the hull, bulkheads, and decks. Additionally, steel pipes are crucial for piping systems that transport fluids and gases throughout the ship, ensuring its proper functioning and safety.

Q:How are steel pipes repaired in case of damage or leaks?: Steel pipes are repaired in case of damage or leaks by first identifying the affected area. The damaged section is then cut out, and a new piece of steel pipe is welded or bolted in its place. This ensures a secure and watertight connection, restoring the integrity of the pipe and preventing further leaks or structural issues.

Q:What are the different surface finishes available for steel pipes?: There are several different surface finishes available for steel pipes, including mill finish, hot-dip galvanized, black oxide, epoxy coating, and powder coating.

Q:How do you prevent leaks in steel pipes?: One way to prevent leaks in steel pipes is by applying a protective coating or lining to the interior surface of the pipes. This can help to prevent corrosion and deterioration, which are common causes of leaks in steel pipes. Additionally, regular inspection and maintenance of the pipes, including checking for signs of damage or wear, can help to identify and address potential leaks before they become a problem.

Q:How do you calculate the flow rate in a steel pipe?: To calculate the flow rate in a steel pipe, you need to consider the pipe's diameter, length, and the pressure difference across it. By applying the Bernoulli's equation or using the Darcy-Weisbach equation, you can determine the flow rate based on these variables.

Q:What are the different pipe fittings used with steel pipes?: Some of the different pipe fittings used with steel pipes include elbows, tees, couplings, unions, reducers, flanges, and caps.

Q:What are the future trends in steel pipe manufacturing?: Some future trends in steel pipe manufacturing include the use of advanced technologies such as robotic automation and artificial intelligence for increased efficiency and precision. There is also a growing focus on sustainability, with the development of eco-friendly manufacturing processes and the use of recycled materials. Additionally, there is a shift towards producing pipes with higher strength and lighter weight, as well as an increasing demand for customized products to meet specific industry requirements.

Q:What is the difference between carbon steel and cast iron pipes?: Various industries widely use carbon steel and cast iron pipes for different purposes. The composition and properties of these two types of pipes distinguish them from each other. 1. In terms of composition, carbon steel pipes consist mainly of iron and carbon, with trace amounts of manganese, phosphorus, sulfur, and other elements. In contrast, cast iron pipes are created by melting iron and adding a small percentage of carbon, typically ranging from 2-4%. 2. When it comes to strength and durability, carbon steel pipes generally outperform cast iron pipes. Carbon steel possesses a higher tensile strength, enabling it to handle greater pressures and reducing the likelihood of damage or deformation. On the other hand, cast iron, while strong, is more brittle and prone to cracking. 3. Carbon steel pipes necessitate additional coatings or treatments to safeguard them against corrosion. If not properly protected, these pipes can be vulnerable to rust and corrosion, particularly when exposed to moisture or corrosive substances. Conversely, cast iron pipes have inherent corrosion resistance due to the formation of a protective layer of iron oxide (rust) on their surface. 4. Cast iron pipes are typically heavier than carbon steel pipes, making them more challenging to handle and install. Comparatively, carbon steel pipes are lighter, facilitating easier transportation and installation. 5. Cast iron pipes excel in sound-dampening properties, resulting in quieter fluid flow. Conversely, carbon steel pipes tend to transmit more noise and vibrations. 6. In terms of cost, cast iron pipes generally carry a higher price tag than carbon steel pipes due to additional manufacturing processes and the increased cost of raw materials. In conclusion, the distinctions between carbon steel and cast iron pipes encompass their composition, strength, corrosion resistance, weight, noise transmission, and cost. The choice between the two relies on the specific application, budgetary considerations, and environmental factors.

Q:Which is cheaper, angle iron or steel pipe?: Angle called angle, the steel strip is perpendicular to each other on both sides into the corner. There are equal angles and unequal angles. The two sides of an equal angle steel are equal in width. The specifications are expressed in millimeters of edge width * edge width * edge thickness. Such as "/ 30 x 30 x 3", that is 30 mm width equal angle, edge thickness of 3 mm. Also available models that model is the number of centimeters wide, such as angle 3#.

Q:Are steel pipes suitable for transporting gas?: Yes, steel pipes are suitable for transporting gas. They have high strength and durability, making them capable of withstanding the pressure and stress involved in gas transportation. Additionally, steel pipes have excellent resistance to corrosion, ensuring the safety and integrity of the gas being transported.

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