BARED HOLLOW SECTION TUBE

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Product Name	rectangular hollow section/ RHS
Size	Size:	1010--500500mm
	Thickness:	0.45--16mm
	Length:	3-12m
Steel Grade	Q195,Q215,Q235,Q345,16Mn, 20#
Standard	ASTM A500,EN10219,GB/T6728,GB/T6725,JIS G3466
Usage	1. For Structure, Airport, Railway 2. Construction and so on.
Ends	Plain end or By Your Choice
Surface	Bared Or With Oiled Or Galvanized
Technique	ERW ,Hot Rolled and Cold Rolled
Section Shape	Rectangular
Inspection	With Hydraulic Testing, Eddy Current , Infrared Test
Package	Bags, Bundle, In Bulk, Containers
MOQ	20 Metric Ton / Can Be Negotiated
Supply Ability	15,000 Metric Ton/Month
Date of Delivery	7 days(Qty within 1000 Metric Ton) or According To The Quantity
Port of Shipment	Tianjin, China
Payment	L/C T/T

Q: What are the advantages of using steel pipes over other materials?: There are several advantages of using steel pipes over other materials. Firstly, steel pipes are incredibly durable and have a high tensile strength, making them resistant to extreme temperatures, pressure, and corrosion. Secondly, steel pipes have excellent structural integrity, allowing for longer spans and fewer supports. Additionally, steel pipes are highly versatile and can be easily welded, threaded, or joined, making installation and maintenance easier. Lastly, steel pipes are cost-effective in the long run as they require minimal maintenance and have a longer lifespan compared to other materials.

Q: Can steel pipes be bent or curved?: Yes, steel pipes can be bent or curved using specialized equipment and techniques such as pipe bending machines or hydraulic bending.

Q: How are steel pipes insulated to prevent heat gain?: Steel pipes are insulated to prevent heat gain by using materials with low thermal conductivity, such as fiberglass or mineral wool, which are wrapped around the pipes. This insulation layer acts as a barrier, reducing the transfer of heat from the surroundings to the pipes, thereby minimizing heat gain. Additionally, a vapor barrier may be applied over the insulation to prevent moisture ingress, which could further impact the insulation's effectiveness.

Q: What is the maximum allowable stress for steel pipes?: The maximum allowable stress for steel pipes depends on various factors such as the grade of steel, diameter, wall thickness, and the intended application. It is typically determined by industry standards and codes, such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Therefore, there is no one-size-fits-all answer to this question.

Q: Are steel pipes suitable for use in acidic environments?: No, steel pipes are generally not suitable for use in acidic environments because they are prone to corrosion in such conditions.

Q: What's the difference between seamless steel pipe and welded pipe?: Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared with the solid steel such as round steel, the steel tube is lighter in strength and is an economical section steel when the flexural strength and torsion strength are the same.Widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing circular parts, can improve the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.

Q: What is the difference between steel pipes and fiberglass pipes?: The main difference between steel pipes and fiberglass pipes lies in their composition and properties. Steel pipes are made of metal and are known for their strength, durability, and resistance to high temperatures and pressure. They are commonly used in industrial settings and for transporting liquids and gases. On the other hand, fiberglass pipes are made of glass fibers embedded in a resin matrix, providing them with excellent corrosion resistance, lightweight properties, and insulation capabilities. Fiberglass pipes are often used in applications where corrosion is a concern, such as in chemical processing plants or wastewater treatment facilities.

Q: Can steel pipes be used for underground power transmission?: Yes, steel pipes can be used for underground power transmission. Steel pipes are commonly used for underground power transmission due to their durability, strength, and resistance to corrosion. They provide a reliable and secure conduit for transmitting power underground while protecting the electrical cables from external elements.

Q: What are the different methods of protecting steel pipes from corrosion?: There are several methods of protecting steel pipes from corrosion, including: 1. Coatings: Applying protective coatings such as epoxy, polyethylene, or zinc to the surface of the steel pipes can create a barrier against corrosive elements. 2. Cathodic Protection: This method involves installing sacrificial anodes or impressed current systems to provide a protective current that counteracts the corrosion process. 3. Corrosion Inhibitors: Adding chemicals or inhibitors to the fluid or environment surrounding the pipes can reduce the rate of corrosion. 4. Internal Linings: Applying internal linings made of resin, cement, or other materials can protect the inner surface of the pipes from corrosion caused by the transported fluid. 5. Design Considerations: Implementing proper design practices like avoiding sharp bends and crevices, ensuring proper drainage, and using corrosion-resistant alloys can help prevent corrosion in steel pipes.

Q: What is the difference between steel pipes and polyethylene pipes?: Steel pipes are made of a strong and durable material, steel, which makes them suitable for high-pressure and high-temperature applications. They are also resistant to corrosion, making them ideal for transporting liquids and gases. On the other hand, polyethylene pipes are made of a flexible plastic material, which makes them easier to install and handle. They are lightweight, resistant to chemicals, and have a low risk of corrosion. However, they may not be suitable for very high-pressure or high-temperature applications.

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