Rectangular Hollow Section Q195

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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: Can steel pipes be used for conveying food and beverages?: No, steel pipes are not suitable for conveying food and beverages as they can corrode and contaminate the products.

Q: How are steel pipes used in the construction of buildings?: Steel pipes are commonly used in the construction of buildings for various purposes such as structural support, plumbing, and electrical installations. They provide strength and durability, allowing for the construction of high-rise buildings and large-scale structures. Steel pipes are used to create the framework of the building, forming the skeleton that supports the weight and load of the structure. Additionally, steel pipes are used for plumbing systems, effectively transporting water and sewage throughout the building. They are also used for electrical installations, providing a safe and efficient conduit for wiring. Overall, steel pipes play a crucial role in the construction of buildings, ensuring stability, functionality, and longevity.

Q: What is the role of steel pipes in the transportation of liquefied natural gas (LNG)?: Due to their unique properties and characteristics, steel pipes are essential in the transportation of liquefied natural gas (LNG). LNG is a form of natural gas that is cooled to a liquid state for easier transportation and storage. Specific infrastructure is required for the transportation of LNG, and steel pipes are a crucial part of this infrastructure. To begin with, steel pipes are used in the construction of LNG terminals and liquefaction plants. These facilities are responsible for converting natural gas into its liquid form and storing it prior to transportation. The extremely cold temperatures needed to maintain LNG in its liquid state necessitate the use of materials that can withstand these conditions, and steel pipes are well-suited for this purpose. Steel pipes possess excellent strength and durability, enabling them to handle the low temperatures and high pressures involved in the liquefaction and storage processes. Additionally, steel pipes are employed in the transportation of LNG from the liquefaction plants to the storage tanks or shipping vessels. LNG is typically transported over long distances, either through pipelines or specialized LNG carriers. Steel pipes are utilized in the construction of underground or above-ground pipelines, providing a reliable and safe means of transporting the LNG. The pipes must be capable of maintaining the low temperatures of the LNG while enduring the pressures and stresses associated with the transportation process. Steel pipes offer the necessary strength, corrosion resistance, and thermal properties to ensure the safe and efficient transportation of LNG. Finally, steel pipes are also utilized in the construction of storage tanks for LNG. These tanks are designed to keep the LNG in its liquid state until it is ready for use or further transportation. The tanks are often constructed using a combination of steel plates and steel pipes. Steel pipes are employed to connect the various components of the tank, such as the inner and outer shells, reinforcing the structural integrity of the tank and guaranteeing its ability to withstand the extreme conditions to which it is exposed. In conclusion, steel pipes are vital in the transportation of liquefied natural gas (LNG) due to their strength, durability, and ability to endure low temperatures and high pressures. From the construction of LNG terminals and liquefaction plants to transportation through pipelines or specialized vessels, steel pipes are a crucial component of the infrastructure required for the safe and efficient transportation and storage of LNG.

Q: What are the different methods of cleaning steel pipes?: There are several methods of cleaning steel pipes, including mechanical cleaning, chemical cleaning, and high-pressure water jetting. Mechanical cleaning involves the use of brushes, scrapers, or other abrasive tools to remove dirt and debris from the pipe's surface. Chemical cleaning involves the application of solvents or acids to dissolve tough stains or residues. High-pressure water jetting uses a powerful stream of water to dislodge and remove contaminants from the pipe. These methods can be used individually or in combination depending on the specific cleaning requirements.

Q: What is the difference between hot-dip galvanizing and electroplating for steel pipes?: Steel pipes can be protected from corrosion using hot-dip galvanizing or electroplating, but these methods have distinct differences. With hot-dip galvanizing, the steel pipes are immersed in molten zinc, creating a strong bond with the steel. This results in a thick and durable zinc coating that effectively prevents corrosion. The entire surface of the pipe, both inside and outside, is uniformly covered, making hot-dip galvanizing ideal for comprehensive protection. Electroplating, on the other hand, involves depositing a thin layer of metal, usually zinc, onto the steel surface using an electric current. Unlike hot-dip galvanizing, electroplating does not form a metallurgical bond between the zinc and steel. Instead, it forms a mechanical bond, which is weaker and less long-lasting. The electroplated zinc layer is also thinner, offering less corrosion protection compared to hot-dip galvanizing. The application process is another point of differentiation. Hot-dip galvanizing requires immersion in molten zinc, which can be time-consuming. Electroplating, on the other hand, uses an electrolytic cell for zinc coating application, which is faster and more efficient. In conclusion, the thickness, durability, and bonding mechanism between zinc and steel distinguish hot-dip galvanizing from electroplating for steel pipes. Hot-dip galvanizing provides a thicker, longer-lasting coating with a metallurgical bond, making it superior for extended corrosion protection. Electroplating, however, creates a thinner coating with a mechanical bond, suitable for applications where a less robust level of corrosion resistance is acceptable.

Q: Can steel pipes be used for sewage and wastewater systems?: Yes, steel pipes can be used for sewage and wastewater systems. Steel pipes are durable, strong, and resistant to corrosion, making them suitable for transporting sewage and wastewater. They are commonly used in various industrial and municipal applications due to their ability to withstand high pressure and provide long-lasting performance.

Q: How are steel pipes used in the transportation of fluids?: Steel pipes are commonly used in the transportation of fluids due to their durability and strength. They are used to carry various types of liquids and gases, such as water, oil, natural gas, and chemicals. Steel pipes are able to withstand high pressure and temperature, making them ideal for long-distance transportation of fluids. They are widely used in industries like oil and gas, water supply, and sewage systems, providing a reliable and efficient means of fluid transportation.

Q: Can steel pipes be used for bridge construction?: Yes, steel pipes can be used for bridge construction. Steel pipes are commonly used in bridge construction due to their high strength-to-weight ratio, durability, and ability to withstand heavy loads and harsh environmental conditions. They are often used for constructing bridge piers, supporting structures, and for carrying utilities such as water or gas pipelines across the bridge.

Q: How are steel pipes used in the manufacturing of geothermal systems?: Steel pipes are used in the manufacturing of geothermal systems primarily for their strength, durability, and resistance to corrosion. These pipes are used to transport fluid, typically water or a water-based solution, from the geothermal source to the surface, where it can be utilized for heating or electricity generation. The high tensile strength of steel pipes allows them to withstand the high pressure and temperature conditions typically found in geothermal systems. Additionally, steel pipes are resistant to corrosion, which is important in preventing leaks and maintaining the efficiency of the system over its lifespan.

Q: How are steel pipes used in HVAC systems?: Steel pipes are commonly used in HVAC systems for various purposes. They are used for transporting fluids such as water, steam, and refrigerant throughout the system. These pipes are durable and resistant to high temperatures and pressures, making them suitable for the demanding conditions of HVAC applications. They are used for distributing and circulating the heated or cooled air, as well as for connecting different components of the system, including boilers, chillers, heat exchangers, and air handlers. Additionally, steel pipes are often used for ventilation and exhaust purposes in HVAC systems.

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