Q195/Q215/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 are the different methods of insulation for steel pipes?: There are several methods of insulation for steel pipes, including thermal insulation, such as fiberglass or mineral wool wraps, foam insulation, such as polyurethane or polyethylene foam, and reflective insulation, like foil-faced insulation. Each method has its own advantages and is chosen based on factors such as the intended use, temperature range, and desired level of insulation.

Q:How are steel pipes used in the construction of underground parking structures?: Steel pipes are commonly used in the construction of underground parking structures for various purposes. They are primarily utilized for the installation of underground drainage systems, including stormwater and wastewater pipes. Steel pipes are also employed for the construction of support columns and beams, providing structural stability to the parking structure. Additionally, steel pipes are used for the installation of fire protection systems, such as sprinkler pipes, ensuring the safety of the underground parking facility.

Q:What are the safety considerations when working with steel pipes?: When working with steel pipes, safety considerations include wearing appropriate personal protective equipment such as gloves, safety glasses, and steel-toed boots to prevent injuries. It is essential to handle and lift steel pipes using proper techniques and equipment to avoid strains and falls. Ensuring a clean and organized work area, as well as securing pipes to prevent rolling or tipping, reduces the risk of accidents. Additionally, workers should be cautious of sharp edges and ensure proper ventilation when working with welding or cutting tools to minimize the risk of fires or inhalation hazards.

Q:What are steel pipes made of?: Steel pipes are primarily made of an alloy of iron and carbon, known as steel.

Q:How are steel pipes protected against external corrosion in coastal areas?: Steel pipes in coastal areas are protected against external corrosion through various methods. One commonly used method is the application of protective coatings, such as epoxy or polyethylene, which act as a barrier between the steel surface and the corrosive elements in the coastal environment. Additionally, cathodic protection techniques, such as sacrificial anode systems or impressed current systems, are employed to prevent corrosion by providing a protective current to the steel pipes. Regular inspection and maintenance of these protective measures also play a crucial role in ensuring the long-term corrosion protection of steel pipes in coastal areas.

Q:What is the typical length of a steel pipe?: The typical length of a steel pipe can vary depending on its intended use and industry standards. However, common lengths range from 18 to 40 feet.

Q:How are steel pipes used in natural gas processing plants?: Steel pipes are used in natural gas processing plants to transport and distribute the gas throughout the facility. They provide a reliable and durable infrastructure for the safe and efficient movement of gas from extraction to processing and distribution.

Q:What is the average cost of steel pipes?: The average cost of steel pipes can vary significantly depending on factors such as size, grade, and quantity needed. Therefore, it is difficult to provide a specific average cost without more information.

Q:What are the different wall thicknesses available for steel pipes?: Steel pipes are available in various wall thicknesses to meet specific requirements and applications. Different schedules indicate the wall thickness. The most commonly used wall thicknesses for steel pipes are Schedule 40, Schedule 80, and Schedule 160. Schedule 40 pipes have a medium wall thickness and are commonly used for general-purpose applications, like conveying fluids and gases. They are suitable for low-pressure systems and widely used in plumbing, HVAC, and irrigation systems. Schedule 80 pipes have a thicker wall compared to Schedule 40 and are designed for high-pressure applications. They are commonly used in industrial settings, oil and gas pipelines, and high-pressure fluid transport systems. The increased wall thickness ensures higher strength and durability to withstand pressure. Schedule 160 pipes have the thickest wall among the available options. They are designed for extremely high-pressure applications, such as refineries, chemical plants, and power generation facilities. These pipes offer exceptional strength and can handle intense pressure and stress in industrial environments. In addition to standard schedules, there are other wall thicknesses available for specific purposes. For instance, extra-strong (XS) pipes have a thicker wall than Schedule 80 pipes and are used for applications requiring even higher pressure resistance. It is crucial to consult professionals or refer to industry standards to determine the appropriate wall thickness for a specific application. Factors like fluid or gas pressure, temperature, and environmental conditions should be considered when selecting the suitable steel pipe with the desired wall thickness.

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. Carbon steel pipes are primarily made of iron and carbon, while stainless steel pipes contain iron, carbon, and a minimum of 10.5% chromium. This high chromium content in stainless steel pipes provides excellent corrosion resistance, making them suitable for various applications in industries like food processing, chemical, and oil & gas. On the other hand, carbon steel pipes are more cost-effective and have higher strength than stainless steel pipes, but they are more susceptible to corrosion and thus require regular maintenance and coating for protection.

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