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 weight and strength of steel pipes?: The weight and strength of steel pipes can vary depending on the specific type and dimensions of the pipe. Steel pipes can range in weight from lightweight options used for plumbing purposes to heavy-duty pipes used in industrial applications. Similarly, the strength of steel pipes can vary, with factors such as the grade of steel and the manufacturing process influencing their strength. It is essential to consult specific specifications or industry standards to determine the weight and strength of a particular steel pipe.

Q:What's the material of Q325 steel pipe?: In terms of deoxidation methods, F, B, Z can be expressed as boiling steel, flat killed steel, killed steel and boiling steel. They are deoxidized steel, which is of poor plasticity and toughness. Welded joints made of this material are susceptible to cracks when subjected to dynamic loads. Should not work at low temperatures, sometimes hardening. In contrast, calming steel is excellent and uniform, with good plasticity and toughness.

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 are the applications of stainless steel pipes?: Stainless steel pipes are widely used in various industries and applications due to their excellent corrosion resistance, durability, and strength. Some common applications include plumbing systems, water supply and distribution, heating and cooling systems, oil and gas industry, chemical processing plants, food and beverage industry, automotive industry, construction, and infrastructure projects. Additionally, stainless steel pipes are also utilized in pharmaceutical manufacturing, aerospace engineering, marine applications, and wastewater treatment facilities.

Q:Can steel pipes be used for transportation of hazardous materials?: The transportation of hazardous materials can indeed utilize steel pipes. Steel is renowned for its robustness, longevity, and resistance to rust, which renders it suitable for the management and conveyance of various perilous substances. This encompasses combustible liquids, noxious chemicals, and other hazardous materials. Steel pipes, employed for the transportation of hazardous materials, are frequently custom-designed and fabricated to comply with strict safety regulations and industry standards. They are typically forged from top-notch steel alloys and subjected to stringent tests to guarantee their integrity and resistance to leaks or ruptures. Additionally, steel pipes can be manufactured with supplementary protective coatings or linings to furnish an extra layer of security and avert any potential reactions between the hazardous substance and the steel. These coatings can also aid in reducing the risk of corrosion and prolonging the lifespan of the pipes. In summary, steel pipes have an established record in the transportation of hazardous materials due to their inherent strength, durability, and ability to withstand the challenging conditions frequently encountered during transportation. Nonetheless, it is imperative to adhere to proper protocols for handling, storage, and transportation to ensure the safety of both the transported materials and the individuals involved in the process.

Q:How are steel pipes used in the power generation sector?: Steel pipes are commonly used in the power generation sector for various applications such as transporting water, steam, and other fluids within power plants. They are used for conveying high-pressure steam to drive turbines and generate electricity, as well as for transporting cooling water to regulate temperature in power plants. Additionally, steel pipes are used in the construction of power plant infrastructure, including the fabrication of boiler tubes, condenser tubes, and other critical components that ensure efficient and reliable power generation.

Q:What are the common methods for inspecting the integrity of steel pipes?: Common methods for inspecting the integrity of steel pipes include visual inspection, ultrasonic testing, magnetic particle testing, radiographic testing, and pressure testing.

Q:What are the alternatives to steel pipes for various applications?: Some alternatives to steel pipes for various applications include plastic pipes (such as PVC or HDPE), copper pipes, cast iron pipes, and concrete pipes. Each alternative has its own set of advantages and disadvantages, and the choice depends on factors such as cost, durability, corrosion resistance, and specific application requirements.

Q:How are steel pipes sized and classified?: Steel pipes are sized and classified based on their outer diameter, wall thickness, and length. The sizing is done using standard measurements such as nominal pipe size (NPS) or nominal diameter (DN). Classification is determined by factors such as the pipe's pressure rating, material composition, and intended use. This helps ensure compatibility and proper installation in various applications such as plumbing, construction, and industrial processes.

Q:Can steel pipes be used for heat transfer applications?: Yes, steel pipes can be used for heat transfer applications. Steel is a good conductor of heat, making it suitable for transferring heat from one place to another. Steel pipes are often used in various heat transfer systems, such as in heating, ventilation, and air conditioning (HVAC) systems, as well as in industrial applications where heat needs to be transported efficiently.

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