ASTM A500/JIS/EN Rectangular hollow section

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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: How are steel pipes used in airport infrastructure?: Steel pipes are commonly used in airport infrastructure for various purposes. They are used in the construction of runways, taxiways, and aprons to provide a strong and durable foundation. Steel pipes are also used for drainage systems, fuel pipelines, and fire suppression systems within the airport premises. Additionally, steel pipes are used in the construction of airport buildings, such as hangars and terminals, for structural support and plumbing systems. Overall, steel pipes play a crucial role in ensuring the safety, efficiency, and functionality of airport infrastructure.

Q: How are steel pipes inspected for defects?: Steel pipes are typically inspected for defects using various non-destructive testing methods such as ultrasonic testing, magnetic particle inspection, and visual inspection. These techniques help identify any cracks, corrosion, or other defects in the pipes, ensuring their structural integrity and quality.

Q: What is the maximum allowable pressure for steel pipes?: Various factors, such as the type of steel used, the pipe's diameter and thickness, and specific industry requirements, determine the maximum pressure allowed for steel pipes. The American Society of Mechanical Engineers (ASME) offers guidelines and standards for pressure vessel and piping design, which include determining the maximum allowable pressure. For power piping and process piping, ASME B31.1 and B31.3 are commonly used codes, respectively. These codes establish design criteria for different materials, including steel, and provide formulas and charts to calculate the maximum allowable pressure for different pipe sizes and wall thicknesses. The maximum allowable pressure is typically determined based on the pipe's ability to withstand internal pressure without experiencing permanent deformation or failure. It is important to consider other factors, such as temperature, corrosion, and the presence of external loads or stresses, as they may also impact the maximum allowable pressure for steel pipes. Therefore, it is essential to refer to the relevant codes, standards, and engineering calculations specific to the application to ensure the safe and reliable operation of steel pipes under the given conditions.

Q: Can steel pipes be used for underground water treatment systems?: Yes, steel pipes can be used for underground water treatment systems. Steel pipes are known for their durability, strength, and resistance to corrosion, making them suitable for various applications, including underground water treatment systems. They can withstand the pressure and environmental conditions found underground, ensuring the safe and efficient transport of water within the treatment system. However, it is important to consider the water quality and potential for corrosion in the specific location when selecting the type of steel and implementing protective measures, such as coatings or cathodic protection, to prevent corrosion and ensure the longevity of the pipes.

Q: How do steel pipes differ from other types of pipes?: Steel pipes possess several distinct characteristics that set them apart from other pipe types. Primarily, their strength and durability are well-known. They exhibit remarkable resistance to heat, pressure, and corrosion, rendering them suitable for numerous applications. Additionally, their robustness allows them to bear heavy loads and offer an extended service life. One distinguishing feature of steel pipes lies in their versatility. They can be manufactured in various shapes and sizes to fulfill specific project requirements. This adaptability has contributed to their popularity across a diverse range of industries, including construction, oil and gas, water treatment, and manufacturing. Moreover, steel pipes exhibit exceptional thermal conductivity, facilitating efficient heat transfer between different areas. Consequently, they prove suitable for applications involving heating and cooling systems, as well as the transportation of hot fluids or gases. Furthermore, steel pipes are renowned for their resistance to fire. They possess a high melting point and are not easily ignited or conducive to the spread of flames. This characteristic is particularly critical in applications where fire safety is a concern, such as buildings or industrial facilities. Lastly, although steel pipes may entail a higher initial cost compared to other pipe types, their long-term benefits, such as durability and low maintenance requirements, often outweigh the initial investment. Additionally, steel pipes are highly recyclable, making them an environmentally friendly choice. In summary, steel pipes stand out due to their strength, durability, versatility, excellent thermal conductivity, fire resistance, and recyclability. These remarkable qualities establish steel pipes as the preferred option for a wide range of applications across various industries.

Q: Can steel pipes be used for underground sewer lines?: Yes, steel pipes can be used for underground sewer lines. Steel pipes are commonly used in sewer systems due to their strength, durability, and resistance to corrosion. They are able to withstand the weight of soil and other external pressures, making them suitable for underground applications. Additionally, steel pipes have a long lifespan and can effectively transport wastewater and sewage for many years. However, it is important to ensure that the steel pipes are properly coated or lined to prevent corrosion and extend their lifespan even further.

Q: Can steel pipes be bent or shaped?: Yes, steel pipes can be bent or shaped using various techniques such as cold bending, hot bending, or by using specialized machinery like pipe benders.

Q: How are steel pipes protected against microbial corrosion?: Steel pipes are protected against microbial corrosion through various methods, such as applying protective coatings or linings on the pipes' inner and outer surfaces. These coatings act as a barrier, preventing the contact of microorganisms with the steel surface, thereby reducing the risk of microbial corrosion. Additionally, biocides and inhibitors can be added to the pipe's contents or injected into the pipeline to inhibit the growth and activity of microbes, further protecting the steel pipes from microbial corrosion.

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.

Q: Are galvanized steel tubes the same as degaussing steel tubes?: And the method of magnetic field created by means of electromagnets or permanent magnets. For analysis of residual magnetism, see table (1), select the demagnetizing method and system in combination with the conditions of the construction site (for example, given equipment, etc.). Table 1 magnetic remanence grade and welding conditions

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