Rectangular Hollow Section Pipe 5.8 meter

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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 galvanized pipe be welded with seamless steel tube? What should I do to connect?: To look at the use of concrete after welding, if the stress is relatively large and thin galvanized pipe wall is recommended to not use welding, if the requirement is not high Po mouth welding should be welding depends on galvanized pipe material selection electrode generally no sealing material are 20

Q:What are the common methods of joining steel pipes?: The common methods of joining steel pipes include welding, threading, and using mechanical couplings. Welding involves fusing the pipes together using heat, while threading involves screwing the pipes together using threads on the ends. Mechanical couplings are devices that connect the pipes together using compression or other means.

Q:What is the cost of steel pipes compared to other materials?: The cost of steel pipes can vary depending on various factors such as size, grade, and market conditions. However, generally speaking, steel pipes tend to be more cost-effective compared to other materials like copper or PVC. Steel is a durable and versatile material that offers exceptional strength and longevity, making it a popular choice for various applications.

Q:What are the quality control measures for steel pipe production?: Quality control measures for steel pipe production typically involve various inspections and tests at different stages of the manufacturing process. Some of the key measures include: 1. Raw material inspection: Ensuring that the steel used for pipe production meets specified standards for chemical composition, mechanical properties, and dimensional accuracy. 2. Dimensional inspection: Checking the outer diameter, wall thickness, and length of the pipes to ensure they meet the required specifications. 3. Welding inspection: Verifying the quality of welds by conducting non-destructive tests, such as ultrasonic or radiographic testing, to detect any defects or discontinuities. 4. Surface inspection: Examining the pipe surface for any defects, such as scratches, pits, or corrosion, which can affect the overall quality and performance. 5. Mechanical testing: Performing tests like tensile strength, yield strength, and impact resistance to assess the mechanical properties of the pipes and ensure they meet the desired standards. 6. Pressure testing: Subjecting the pipes to hydrostatic or pneumatic pressure tests to verify their ability to withstand the intended operational pressures without leakage or failure. 7. Coating inspection: Checking the quality and uniformity of any protective coatings or linings applied to the pipes to prevent corrosion or other forms of deterioration. 8. Documentation and traceability: Maintaining records of all inspections, tests, and certifications to provide traceability and ensure compliance with relevant industry standards and customer requirements. These quality control measures help to ensure that steel pipes are manufactured to the highest standards, possess the required mechanical and dimensional properties, and are fit for their intended application.

Q:What's the difference between round and round tubes?: Round steel is generally refers to steel, the surface is not threaded, different from round steel pipe, round tube is round tube.

Q:How are steel pipes used in the construction of nuclear power plants?: Steel pipes are widely used in the construction of nuclear power plants for various critical applications. They are employed in the primary coolant system, where they carry and circulate the pressurized water or liquid metal coolant that transfers heat from the reactor core to the steam generator. Steel pipes are also utilized in the secondary coolant system, which transports the generated steam to drive the turbine for electricity production. Additionally, steel pipes are used for the construction of various auxiliary systems, such as the emergency cooling system or the ventilation system, ensuring the safe and efficient operation of nuclear power plants.

Q:What is the dimensional stability of steel pipes?: The ability of steel pipes to retain their shape and dimensions in different conditions and external forces is referred to as dimensional stability. Steel pipes are well-known for their exceptional dimensional stability due to the inherent properties of the material. Steel, being a strong and rigid material, can maintain its shape even when subjected to high pressure or temperature fluctuations. This characteristic makes steel pipes highly suitable for applications that demand stability and resistance to deformation, such as plumbing, oil and gas pipelines, and structural supports. In addition to its inherent strength, the dimensional stability of steel pipes is also a result of their manufacturing processes. These pipes are typically produced using methods like seamless or welded construction, ensuring uniformity and consistent dimensions throughout the pipe's length. This precise manufacturing contributes to the dimensional stability of steel pipes. Furthermore, steel pipes are often coated with various protective coatings to increase their resistance to environmental factors. These coatings, such as galvanization or epoxy coatings, not only provide corrosion protection but also enhance the dimensional stability of the pipes by adding an extra layer of strength and durability. In conclusion, the widespread use of steel pipes in different industries is largely attributed to their dimensional stability. Their ability to maintain their shape and dimensions, even in challenging conditions, guarantees reliable and long-lasting performance in various applications.

Q:What are the different types of steel pipe coatings for nuclear power plants?: There are several types of steel pipe coatings used in nuclear power plants, including epoxy coatings, fusion-bonded epoxy (FBE) coatings, and polyethylene (PE) coatings. These coatings provide corrosion and chemical resistance to the steel pipes, ensuring their longevity and safety in the demanding environment of a nuclear power plant.

Q:How are steel pipes tested for leakage?: Steel pipes are typically tested for leakage using various methods such as hydrostatic testing, ultrasonic testing, or dye penetrant testing. Hydrostatic testing involves pressurizing the pipe with water or another suitable liquid to a predetermined level and checking for any pressure drop over a specific period of time, indicating potential leakage. Ultrasonic testing utilizes high-frequency sound waves to detect any defects or cracks in the pipe wall that may cause leakage. Dye penetrant testing involves applying a colored liquid to the surface of the pipe, which seeps into any cracks or openings, making them easily visible under specific lighting, thus identifying potential leaks.

Q:What is the difference between steel pipes and concrete pipes?: The main difference between steel pipes and concrete pipes lies in their composition and physical properties. Steel pipes are made from a combination of iron and carbon, which makes them strong, durable, and resistant to corrosion. Concrete pipes, on the other hand, are made from a mixture of cement, sand, and aggregates, giving them a solid structure and high compressive strength. In terms of installation, steel pipes are typically lighter and easier to handle, making them more convenient for transportation and installation. Concrete pipes, due to their weight and bulkiness, require heavy machinery or specialized equipment for handling and placement. Additionally, steel pipes have a smooth interior surface, which allows for efficient fluid flow and minimizes friction. Concrete pipes, on the contrary, have a rougher interior surface that can cause friction and impede the flow of fluids. When it comes to cost, steel pipes tend to be more expensive than concrete pipes, primarily due to the higher cost of raw materials and manufacturing processes involved. Both steel and concrete pipes have their specific applications and advantages. Steel pipes are commonly used in industries such as oil and gas, water supply, and construction, where strength and durability are crucial. Concrete pipes are often used in sewer systems, stormwater drainage, and culverts, where their high load-bearing capacity and resistance to chemical erosion make them suitable options.

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