Rectangular Hollow Section pipe

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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 tested for quality?: Steel pipes are tested for quality through various methods, including visual inspection, non-destructive testing (NDT) techniques such as ultrasonic testing, magnetic particle testing, and radiographic testing. Additionally, mechanical properties like tensile strength, hardness, and toughness are evaluated to ensure the pipes meet the required specifications. Various standards and guidelines are followed to ensure the quality and safety of steel pipes.

Q: What is the typical diameter range for steel pipes?: The typical diameter range for steel pipes can vary depending on the specific application and industry requirements. However, in general, steel pipes can have diameters ranging from as small as 0.5 inches (12.7 millimeters) up to several feet (over a meter) in diameter. The most commonly used steel pipes for various purposes, such as plumbing, construction, and transportation of fluids or gases, typically fall within the range of 1/2 inch (13 millimeters) to 36 inches (914 millimeters) in diameter. It is important to note that larger diameter steel pipes are often used for industrial applications, such as oil and gas pipelines, while smaller diameter pipes are commonly used for residential and commercial plumbing systems.

Q: How are steel pipes used in the construction of offshore oil rigs?: Steel pipes are commonly used in the construction of offshore oil rigs for various purposes. They are primarily utilized for drilling operations, transporting oil and gas from the seabed to the surface, and for the installation of pipelines and risers. These pipes are known for their strength, durability, and ability to withstand harsh offshore environments, making them an essential component in ensuring the safe and efficient extraction of oil and gas from deep-sea reserves.

Q: What are the different types of steel pipe coatings for marine applications?: There are several types of steel pipe coatings used for marine applications, including fusion-bonded epoxy (FBE) coatings, three-layer polyethylene (3LPE) coatings, three-layer polypropylene (3LPP) coatings, and concrete weight coatings (CWC). These coatings provide protection against corrosion, abrasion, and other environmental factors, ensuring the longevity and durability of the steel pipes in marine environments.

Q: How are steel pipes used in the manufacturing of aerospace components?: Steel pipes are used in the manufacturing of aerospace components for various purposes such as supporting structures, fuel systems, hydraulic and pneumatic systems, and exhaust systems. They provide strength, durability, and resistance to extreme temperatures and pressure, making them suitable for critical applications in the aerospace industry.

Q: Can steel pipes be used for both high-pressure and low-pressure systems?: Yes, steel pipes can be used for both high-pressure and low-pressure systems. Steel pipes are known for their strength and durability, making them suitable for various applications. They are capable of withstanding high pressures without deformation or leakage, while also being reliable for low-pressure systems.

Q: What are the thermal properties of steel pipes?: Steel pipes have excellent thermal conductivity, allowing them to efficiently transfer heat. They also have a high melting point, making them suitable for high-temperature applications. Moreover, steel pipes have a low coefficient of thermal expansion, meaning they can withstand significant temperature changes without warping or deforming.

Q: Seamless steel tube 89X4 meters, how heavy?: Generally seamless steel pipe wall thickness will be uneven, according to the theory, each meter is 8.3844 kilograms, but if the wall thickness is poor 20--30 wire, then the weight will increase some

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: Can steel pipes be used for LNG terminals?: Yes, steel pipes can be used for LNG terminals. Steel pipes are commonly used in the construction of LNG terminals due to their durability, strength, and resistance to extreme temperatures. Additionally, steel pipes can effectively handle the high-pressure requirements of LNG transportation and storage.

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