ASTM A500/JIS/EN Rectangular hollow section pipe

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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:Are steel pipes resistant to fire?: Yes, steel pipes are highly resistant to fire due to their high melting point and ability to withstand intense heat and flames.

Q:What are the different types of steel pipe connections for steam pipelines?: There are several types of steel pipe connections commonly used for steam pipelines, including threaded connections, flanged connections, welded connections, and grooved connections. Each type has its own advantages and is selected based on factors such as the pipe size, pressure rating, and ease of installation and maintenance.

Q:What are the safety considerations while handling steel pipes?: When handling steel pipes, some key safety considerations include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toe boots to protect against potential injuries. It is important to be cautious of the weight and size of the pipes, using proper lifting techniques and equipment to prevent strains or accidents. Additionally, workers should be mindful of the sharp edges and potential for cuts or punctures, ensuring they have a clear and organized workspace to minimize the risk of tripping or falling. Regular inspections of the pipes for any damages or defects are also crucial to prevent accidents and maintain a safe working environment.

Q:What are the factors to consider when selecting steel pipes?: Some factors to consider when selecting steel pipes include the intended application and environment, the required strength and durability, the size and thickness of the pipes, the corrosion resistance, the cost, and the availability of different types of steel pipes.

Q:What are the advantages of using steel pipes in the mining industry?: There are several advantages of using steel pipes in the mining industry. Firstly, steel pipes are extremely durable and can withstand high-pressure environments, making them ideal for transporting materials such as water, slurry, and chemicals in mining operations. Secondly, steel pipes are resistant to corrosion, which is crucial in the mining industry where materials are often exposed to harsh conditions and abrasive substances. Additionally, steel pipes have a high heat tolerance, allowing them to handle hot materials without deformation or damage. Lastly, steel pipes are easy to install and maintain, reducing downtime and ensuring smooth operations in the mining industry.

Q:What are the different methods of joining steel pipes without welding?: There are multiple ways to connect steel pipes without welding. These include: 1. Mechanical Couplings: These couplings consist of two separate pieces that attach to the pipe ends and then tighten together. They provide a secure and leak-proof connection, eliminating the need for welding. 2. Threaded Connections: This method involves threading the ends of the steel pipes to create a male and female connection. The pipes are then screwed together using pipe threads, creating a strong and dependable joint. 3. Flanged Connections: Flanges are utilized to connect steel pipes by bolting them together. The flanges have a flat surface with holes that align with corresponding holes in the opposing flange. Bolts are inserted and tightened to establish a tight seal. 4. Grooved Connections: This technique involves grooving the pipe ends and using grooved couplings to join them. The couplings have teeth that interlock with the grooves, resulting in a secure and rigid connection. 5. Compression Fittings: Compression fittings are employed to connect steel pipes by compressing a metal or plastic ring onto the outer surface of the pipe. This creates a tight seal and a reliable connection without welding. 6. Adhesive Bonding: Special adhesives designed for bonding metals can be used to connect steel pipes. The adhesive is applied to the pipe surfaces, which are then pressed together and left to cure, forming a strong and durable bond. 7. Clamping: Clamps can be used to hold steel pipes together, creating a temporary connection. This method is commonly used for testing purposes or in situations where the pipes need to be easily dismantled. Each of these methods has its own benefits and limitations, and the choice depends on various factors such as the specific application, pipe material, and required joint strength.

Q:What is the difference between standard wall thickness and extra-strong wall thickness steel pipes?: The main difference between standard wall thickness and extra-strong wall thickness steel pipes lies in their thickness and durability. Standard wall thickness pipes have thinner walls and are suitable for most general applications, while extra-strong wall thickness pipes have thicker walls and are designed for heavy-duty or high-pressure applications. These extra-strong pipes offer enhanced strength and resistance, making them more reliable and suitable for handling extreme conditions or demanding projects.

Q:How are steel pipes used in the agriculture sector?: Steel pipes are commonly used in the agriculture sector for various purposes such as irrigation, drainage systems, and the transportation of water, chemicals, and fertilizers. They are also used in the construction of greenhouse structures and livestock enclosures, providing durability and strength to withstand harsh agricultural environments. Additionally, steel pipes are employed for post and pole applications, supporting fences and gates on farms.

Q:What is the difference between hot-dip galvanizing and electroplating of steel pipes?: Hot-dip galvanizing and electroplating are two different methods used to protect steel pipes from corrosion. Hot-dip galvanizing involves immersing the steel pipes into a molten zinc bath. The zinc reacts with the steel surface, forming a series of zinc-iron alloy layers on the pipe's surface. This process creates a robust and uniform coating that provides excellent corrosion resistance. Hot-dip galvanizing is commonly used for outdoor applications and in environments where the pipes are exposed to harsh conditions, such as water or chemicals. On the other hand, electroplating involves the deposition of a thin layer of metal onto the surface of the steel pipes using an electric current. In the case of steel pipes, the most common metal used for electroplating is zinc. The steel pipes act as the cathode, and a zinc anode is placed in a solution containing zinc ions. The electric current causes the zinc ions to react with the steel surface, resulting in the formation of a thin zinc coating. Electroplating provides a more decorative finish and is often used for indoor applications or when aesthetics are a priority. In terms of the coating thickness, hot-dip galvanizing generally provides a thicker and more durable coating compared to electroplating. The hot-dip galvanized coating is typically several times thicker than the electroplated zinc coating. This thicker coating offers better protection against corrosion and provides a longer lifespan for the steel pipes. Another difference lies in the coating appearance. Hot-dip galvanizing produces a coating with a matte gray finish, while electroplating can result in a more lustrous and shiny appearance. Cost-wise, hot-dip galvanizing is generally more cost-effective for larger projects due to its efficiency in coating multiple pipes simultaneously. Electroplating, on the other hand, is typically more expensive and time-consuming, especially for larger quantities of steel pipes. Overall, the choice between hot-dip galvanizing and electroplating depends on the specific requirements of the project, including the intended application, environment, aesthetics, and budget constraints.

Q:What is the fire rating of steel pipes?: The fire rating of steel pipes can vary depending on factors such as the thickness of the pipe, the type of insulation or fireproofing materials used, and the specific application or building codes. However, steel pipes are generally considered to have good fire resistance properties due to their non-combustible nature and ability to withstand high temperatures.

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