Galvanized Rectangular hollow section/ RHS

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 m.t./month

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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 is the difference between internal and external coating for steel pipes?: A protective layer is applied to the inner surface of steel pipes, which is known as internal coating. The main purpose of this coating is to prevent corrosion and enhance resistance against chemicals present in the fluid being transported. Techniques like spraying, brushing, or dipping are commonly used to apply the internal coating, and it can be made of materials such as epoxy, polyurethane, or cement mortar. On the contrary, external coating involves the application of a protective layer on the outer surface of steel pipes. The main objective of this coating is to protect against environmental factors like corrosion, abrasion, and impact. External coatings are usually applied through methods like wrapping or coating with materials such as polyethylene, fusion-bonded epoxy, or asphalt enamel. To summarize, the primary difference between internal and external coating for steel pipes lies in their location and purpose. Internal coatings safeguard the inner surface from corrosion and chemical attacks, while external coatings provide protection against environmental damage on the outer surface. Both types of coatings are essential to ensure the durability and reliability of steel pipes in various applications.

Q: How are steel pipes used in the agricultural sector?: Steel pipes are commonly used in the agricultural sector for various purposes such as irrigation, drainage, and livestock handling. They are used to transport water from a source to fields, as well as to distribute water evenly across crops through irrigation systems. Steel pipes also help in draining excess water from fields and preventing waterlogging. Additionally, they are utilized for constructing fences, gates, and cattle handling facilities, ensuring the safety and containment of livestock.

Q: How are steel pipes used in the automotive exhaust system?: Steel pipes are used in the automotive exhaust system to transport and expel the exhaust gases from the engine. They are durable and resistant to high temperatures, making them suitable for this purpose. Steel pipes are often bent and welded together to form the exhaust system, ensuring a smooth flow of exhaust gases and minimizing any leaks.

Q: Can steel pipes be used for solar power systems?: Yes, steel pipes can be used for solar power systems. Steel pipes are commonly used for the construction of solar panel frames, mounting systems, and the support structures for solar thermal collectors. They provide durability, strength, and are resistant to weather conditions, making them suitable for various components of solar power systems.

Q: Are steel pipes suitable for underground irrigation pumping?: Indeed, steel pipes prove to be a fitting option for underground irrigation pumping. Renowned for their robustness and resilience, steel pipes present themselves as an optimal selection for subterranean utilities. They boast the capacity to endure substantial pressure, ward off corrosion, and remain less susceptible to soil shifting or fluctuations in temperature. Moreover, steel pipes exhibit a lengthier lifespan when juxtaposed with alternative materials, thereby mitigating the necessity for frequent replacements. However, it remains imperative to guarantee meticulous coating or lining of the steel pipes to avert corrosion and to consistently examine and uphold them for their continued efficacy and durability.

Q: Can steel pipes be used for the construction of railway tracks?: No, steel pipes cannot be used for the construction of railway tracks. Railway tracks require specially designed rails made of steel, which are laid on sleepers or ties and secured with fasteners to provide stability and support for trains. Steel pipes do not possess the necessary shape or strength required for this purpose.

Q: How are steel pipes used in the construction of high-rise buildings?: Steel pipes are commonly used in the construction of high-rise buildings for various purposes, including structural support, plumbing, and fire protection. These pipes provide strength and durability to support the weight of the building, allowing for taller structures. They are used to create the building's framework, as well as for the distribution of water, gas, and other utilities throughout the building. Additionally, steel pipes are often used for fire sprinkler systems, providing a reliable and efficient method of fire protection in high-rise buildings.

Q: What steel pipes are buried for outdoor heating pipes? Seamless or welded tube? Are there any rules for specific countries? Can use the seamed tube?: The pipe material of heating pipe network should be designed according to the requirement. When the design is not specified, the following requirements shall be met:1 when the pipe diameter is less than or equal to 40mm, welded steel pipe shall be used.2 when the pipe diameter is 50 ~ 200mm, welded steel pipe or seamless steel pipe shall be used.3 when the pipe diameter is greater than 200mm, spiral welded steel pipe shall be used.

Q: Theoretical weight of 25*25*1.5 square steel tubes: The theoretical weight of 25*25*1.5 square steel tubes is 1.075kg/m.

Q: What industries typically use steel pipes?: Steel pipes find widespread use across various industries due to their durability, strength, and versatility. Some of the sectors that typically employ steel pipes include: 1. Construction: Steel pipes are extensively utilized in the construction industry for diverse purposes like structural support, plumbing, and underground piping systems. They are commonly seen in commercial buildings, residential structures, bridges, and tunnels. 2. Oil and gas: The oil and gas industry heavily relies on steel pipes for drilling, transporting, and distributing oil and gas. Steel pipes are employed in offshore drilling rigs, oil refineries, natural gas processing plants, and pipelines to ensure the safe and efficient transport of these valuable resources. 3. Water and wastewater: Steel pipes play a crucial role in providing clean water supply and managing wastewater. They are used in water treatment plants, desalination facilities, and municipal water distribution systems. Steel pipes are also essential for sewage and stormwater management. 4. Manufacturing: Various manufacturing industries employ steel pipes for specific applications. For example, automobile manufacturers use steel pipes in exhaust systems, fuel lines, and hydraulic systems. Steel pipes are also utilized in the production of machinery, equipment, and appliances. 5. Mining: The mining industry requires robust and enduring materials for its operations. Steel pipes are used in mining applications such as conveying materials, ventilation systems, and underground infrastructure. They prove particularly useful in transporting minerals, ores, and other mining byproducts. 6. Energy and power: Steel pipes find extensive use in power generation facilities, including thermal power plants, nuclear power plants, and renewable energy installations. They are employed in steam pipelines, cooling systems, and heat exchangers. Steel pipes are also used in the construction of transmission lines for electricity distribution. 7. Infrastructure and transportation: Steel pipes are essential for infrastructure development and transportation systems. They are used in the construction of roads, bridges, railways, and airports. Steel pipes also play a role in the transportation of fluids and gases, such as in natural gas or petroleum product pipelines. Overall, the versatility and dependability of steel pipes make them indispensable in a wide range of industries, contributing to various aspects of our modern infrastructure and daily lives.

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