Q195/Q235/Q345 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 does cathodic protection of steel tubes mean?: Applied current: a macro cell consisting of a protected metal piece and an insoluble auxiliary component. The negative electrode of the battery is connected to the metal to be protected. The power supplies the electrons so that the metal is not corroded by missing points.

Q:Can steel pipes be used for underground sewer systems?: Yes, steel pipes can be used for underground sewer systems. Steel pipes are known for their durability, strength, and resistance to corrosion, making them a suitable choice for underground applications such as sewer systems. However, it is important to consider factors like soil conditions, potential for corrosion, and local regulations before selecting steel pipes for an underground sewer system.

Q:How are steel pipes coated for aesthetic purposes?: Steel pipes can be coated for aesthetic purposes in several ways. One common method is through the application of a powder coating. Powder coating involves spraying a dry powder onto the surface of the steel pipe and then heating it to create a durable and attractive finish. This process allows for a wide range of color options and provides a smooth, even coating. Another method used for aesthetic coating is electroplating. Electroplating involves immersing the steel pipe in a solution containing metal ions, such as chrome or zinc, and passing an electric current through it. This causes the metal ions to bond with the surface of the pipe, creating a thin, decorative layer. Electroplating can produce a variety of finishes, including shiny, reflective surfaces or more matte, textured appearances. Painting is also a common method for coating steel pipes for aesthetic purposes. This involves applying a liquid paint or enamel to the surface of the pipe. By choosing different colors, textures, and finishes, painting allows for a wide range of aesthetic possibilities. However, it is important to ensure that the paint used is specifically formulated to adhere to metal surfaces and withstand the environmental conditions the pipe will be exposed to. In addition to these methods, steel pipes can also be coated using techniques such as hot-dip galvanizing or metal cladding. These processes involve the application of a layer of another metal, such as zinc or aluminum, to the surface of the steel pipe. This not only enhances the appearance of the pipe but also provides protection against corrosion, extending its lifespan. Overall, there are multiple methods available for coating steel pipes for aesthetic purposes. Each method offers its own advantages and can be chosen based on the desired appearance, durability, and environmental conditions. It is important to consider factors such as color, texture, finish, and protective properties when selecting the coating method to ensure the desired aesthetic result is achieved.

Q:How are steel pipes used in the manufacturing of pressure vessels?: Steel pipes are commonly used in the manufacturing of pressure vessels due to their high strength and ability to withstand high pressure. These pipes are utilized as the primary material for constructing the shell of the pressure vessel, providing a robust and reliable structure. Additionally, steel pipes offer excellent resistance to corrosion, making them suitable for various industries and applications where pressure vessels are required, such as oil and gas, chemical processing, and power generation.

Q:How do steel pipes connect to other components?: Steel pipes can connect to other components through various methods such as welding, threading, flanges, or mechanical couplings.

Q:How do steel pipes handle ground settlement?: One possible alternative: Due to their robustness and durability, steel pipes are highly suitable for managing ground settlement. The pipes' flexibility and strength enable them to endure the shifting and settling of the ground with minimal damage. Their high resistance to deformation ensures that they can maintain their shape and structural integrity even when the ground settles or moves. When the ground settles, steel pipes can flex and bend slightly to accommodate the movement. This flexibility allows them to adapt to changes in the ground without experiencing breakage or cracking. Additionally, steel pipes often incorporate joints designed to absorb and distribute stress caused by ground settlement. Moreover, steel pipes possess a smooth interior surface that reduces friction and resistance to material flow. This characteristic becomes particularly crucial when the ground settles, as it diminishes the chances of blockages or clogs due to debris or sediment settling inside the pipes. In conclusion, steel pipes possess the necessary strength, flexibility, and resistance to deformation to effectively handle ground settlement. They can adapt to ground movement without compromising their structural integrity, making them a dependable choice for various applications such as underground infrastructure and pipeline systems.

Q:What are the factors affecting the durability of steel pipes?: The factors affecting the durability of steel pipes include corrosion, temperature, pressure, mechanical stress, and the quality of the protective coatings or linings applied to the pipes. Additionally, the composition and purity of the steel used in the pipes, as well as the design and construction of the pipeline system, can also impact its durability.

Q:Can steel pipes be used for automotive applications?: Indeed, automotive applications do involve the utilization of steel pipes. In the automotive industry, steel pipes find frequent application in exhaust systems, fuel lines, and hydraulic systems, among other purposes. The key attributes of steel pipes, such as their remarkable strength, durability, and resistance to corrosion, render them well-suited for enduring the challenging conditions and requirements of automotive applications. Moreover, steel pipes offer the added advantage of being effortlessly shaped and welded, facilitating customization and simplified installation. All in all, steel pipes offer a dependable and economically viable solution for automotive applications.

Q:How are steel pipes used in the construction of pipelines?: Steel pipes are commonly used in the construction of pipelines due to their durability, strength, and resistance to corrosion. These pipes are welded together to form a continuous line, allowing fluids or gases to be transported over long distances. The steel pipes are essential for ensuring a reliable and efficient flow of materials, such as oil, gas, or water, in various industries, including oil and gas, water supply, and infrastructure development.

Q:What are the different types of threading on steel pipes?: There are several types of threading commonly used on steel pipes, including tapered or NPT (National Pipe Taper), straight or NPS (National Pipe Straight), and British Standard Pipe (BSP) threading. These different types of threading are designed to ensure a secure and leak-free connection between pipes and fittings.

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