Construction 20# 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 carbon steel pipes and stainless steel pipes?: The main difference between carbon steel pipes and stainless steel pipes lies in their composition and properties. Carbon steel pipes are primarily made of iron and carbon, with small amounts of other elements. They are less expensive, have higher tensile strength, and are suitable for transporting fluids and gases in various industries. On the other hand, stainless steel pipes contain iron, chromium, and other alloying elements. They are more expensive, have higher corrosion resistance, and are commonly used in applications where hygiene, durability, and aesthetic appeal are essential, such as in the food, pharmaceutical, and architectural industries.

Q: Can steel pipes be used for structural applications?: Yes, steel pipes can be used for structural applications.

Q: How are steel pipes used in the construction of geothermal power plants?: Steel pipes are used in geothermal power plants for various purposes, including the transport of geothermal fluids from the underground reservoir to the surface, the distribution of these fluids within the plant, and the construction of the plant's infrastructure, such as the well casing and steam piping.

Q: Can steel pipes withstand high temperatures?: Yes, steel pipes can withstand high temperatures. Steel is a strong and durable material that has high heat resistance. It can retain its strength and structural integrity even when exposed to extreme heat, making it suitable for various high-temperature applications such as industrial furnaces, power plants, and steam pipelines.

Q: Are steel pipes suitable for underground sewage lines?: Yes, steel pipes are suitable for underground sewage lines. They are strong, durable, and resistant to corrosion, making them an excellent choice for sewage systems.

Q: 20# seamless steel pipe and seamless steel pipe 20G what is the difference?: 20G seamless steel tube is a high-pressure boiler tube. In addition to carbon content, 20G seamless steel tubes also have some trace elements that are more suitable for use as boiler pressure vessels. In addition, 20G also focuses on its physical performance. Such as bending, impact and tensile properties. 0G seamless steel tube is a kind of steel strip with hollow section and without seams. A 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.

Q: How are steel pipes cleaned and flushed?: Depending on specific requirements and conditions, different methods can be used to clean and flush steel pipes. One way to achieve this is through mechanical cleaning, which involves physically removing debris, rust, or scale from the inner surface of the pipes using wire brushes, scrapers, or other abrasive tools. This method is effective in removing loose or easily detachable contaminants. Chemical cleaning is another commonly used method, especially for pipes with stubborn deposits or rust. Various chemicals or cleaning agents are flushed through the pipes to dissolve or loosen the buildup, which can then be washed away. Acid-based solutions are often used for this purpose, but it's crucial to select the appropriate chemical and concentration to prevent pipe damage. High-pressure water jetting is an effective technique for cleaning and flushing steel pipes. Water is pumped at high pressure through a nozzle, generating a powerful jet that dislodges and removes debris or deposits from the pipe walls. This method is particularly useful for eliminating hard or compacted materials that are difficult to remove by other means. In some cases, a combination of these methods may be necessary to achieve the desired cleanliness. For example, mechanical tools can be used for pre-cleaning, followed by chemical cleaning or high-pressure water jetting to ensure thorough flushing and contaminant removal. Regular maintenance and cleaning of steel pipes are crucial to maintain efficiency and prevent corrosion. It's important to adhere to proper procedures and safety guidelines when cleaning and flushing steel pipes to achieve effective results and prevent any damage to the pipes.

Q: Can galvanized pipe be welded with seamless steel tube? What should I do to connect?: See the galvanized pipe and seamless steel pipe steel that differences in how if the difference is too large then the steel used for two kinds of materials for welding requirements is not the same, do not recommend direct welding, low pressure can be used in high voltage wire, welding on both sides of the same material flange with flange connection.

Q: Are steel pipes suitable for industrial applications?: Steel pipes are an excellent choice for industrial applications. They come with several advantages that make them the preferred option in various industries. Firstly, their strength and durability are exceptional, enabling them to withstand high pressure and heavy loads. This makes them perfect for transporting liquids, gases, and solids. Furthermore, steel pipes exhibit high resistance to corrosion, a critical feature in industrial settings where exposure to harsh chemicals, moisture, and extreme temperatures is common. Their corrosion-resistant properties ensure a longer lifespan and reduce the need for frequent maintenance and replacements. Additionally, steel pipes have a smooth interior surface, minimizing friction and allowing for efficient material flow. This is particularly vital in industries like oil and gas, where the smooth flow of fluids is essential for proper operations. Moreover, steel pipes offer a wide range of sizes and thicknesses, allowing for customization and flexibility in design. They can be easily welded and connected, facilitating simple installation and modification as per specific industrial requirements. Overall, steel pipes provide a combination of strength, durability, corrosion resistance, and versatility, making them highly suitable and widely used in various industrial applications such as oil and gas, construction, water treatment, power generation, and chemical processing.

Q: What are the standard dimensions and weight of steel pipes?: The specific type and grade of steel pipes determine the variation in standard dimensions and weight. Nonetheless, the industry widely accepts some common standard dimensions and weight ranges. Seamless steel pipes typically have standard dimensions ranging from 1/8 inch to 60 inches in outer diameter (OD) and from 10.3 mm to 914.4 mm in wall thickness. The weight of seamless steel pipes varies depending on the size and length, ranging from a few kilograms to several metric tons. Similarly, welded steel pipes have standard dimensions ranging from 1/2 inch to 80 inches in OD and from 3.2 mm to 25.4 mm in wall thickness. The weight of welded steel pipes can also greatly vary, ranging from a few kilograms to several metric tons. It is worth noting that the dimensions and weight of steel pipes can be customized according to specific project requirements. Moreover, different countries or regions may have their own standards and specifications for steel pipes. Therefore, it is always advisable to consult the relevant standards and guidelines when determining the dimensions and weight of steel pipes for a particular application.

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