Hollow Section with Different Specifications from CNBM

Hollow Section with Different Specifications from CNBM System 1

Hollow Section with Different Specifications from CNBM

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: 3000 m.t./month

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1、Structure of Hollow Section Description:

Hollow section is a type of metal profile with a hollow tubular cross section. Hollow section, especially rectangular sections, are commonly used in welded steel frames where members experience loading in multiple directions. Square and circular hollow section have very efficient shapes for this multiple-axis loading as they have uniform geometry along two or more cross-sectional axes, and thus uniform strength characteristics. This makes them good choices for columns. They also have excellent resistance to torsion. Hollow section can also be used as beams, although wide flange or I-beam shapes are in many cases a more efficient structural shape for this application. However, the hollow section has superior resistance to lateral torsional buckling.

2、Main Features of the Hollow Section:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price

3、Hollow Section with Different Specifications Images：

Hollow Section with Different Specifications

4、Hollow Section Specifications：

Standard:	JIS, GB, DIN, ASTM JIS G3445-2006, JIS G3444-2006, JIS G3446-2004, JIS G3441, GB/T 8163-1999, GB/T 8162-1999, DIN EN 10216-1-2004, DIN EN 10217-1-2005, DIN EN 10305, ASTM A106-2006, ASTM A53-2007, ASTM A789-2001, ANSI A213-2001, ASTM A179-1990
Grade:	10#-45#, Cr-Mo alloy, Mo 10#, 20#, 45#, 15CrMo, 12CrMo, 13CrMo44, 12CrMo195, 16Mo, 16mo3
Thickness:	1 - 50 mm
Section Shape:	Square
Outer Diameter:	1515---8080
Place of Origin:	Shandong, China (Mainland)
Secondary Or Not:	Non-secondary
Application:	Structure Pipe
Technique:	Hot Rolled
Surface Treatment:	Copper Coated
‍‍‍‍ Certification:	API
‍ Special Pipe:	Thick Wall Pipe
Alloy Or Not:	Non-alloy

authentication:CANS CNAB IAF PAC CEC

5、FAQ of Hollow Sections with Different Specifications:

①How to guarantee the quality of the products？‍

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

②How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.

③ How can we get more information?‍

You can contact us by Email or call us directly and we will do our best to give you valuable information as much as possible but this service is not available on weekends.

Q: How are steel pipes threaded for easy installation?: Steel pipes are threaded for easy installation using a process called threading. Threading involves cutting grooves or ridges into the pipe to create a spiral pattern. This pattern allows the pipe to easily connect with other threaded components, such as fittings or valves. There are two common methods used to thread steel pipes: manual threading and machine threading. In manual threading, a handheld tool called a pipe die is used. The die is equipped with sharp teeth that cut into the pipe as it is rotated. The pipe is secured in a vise or held firmly by hand, and the die is applied to the end of the pipe. The die is then rotated around the pipe, creating the threaded grooves. This process requires skill and precision to ensure accurate and properly aligned threads. Machine threading, on the other hand, is a more automated process. It involves the use of a pipe threading machine, which is equipped with a die head that automatically cuts the threads into the pipe. The machine secures the pipe and rotates it while the die head moves along the length of the pipe, cutting the threads. Machine threading is faster and more efficient than manual threading, making it ideal for large-scale production or projects. Regardless of the method used, it is crucial to ensure that the threads are clean and free from debris or burrs. This is important for easy installation and to prevent leaks or other complications. After threading, the pipes are typically inspected to ensure the threads meet the required specifications. Threading steel pipes allows for easy installation as the threaded ends can be easily screwed into fittings, valves, or other pipes with compatible threads. This threaded connection creates a tight seal, making it suitable for various applications, such as plumbing, gas lines, or industrial piping systems.

Q: How do steel pipes handle high-pressure applications?: Steel pipes are able to handle high-pressure applications due to their inherent strength and durability. The material properties of steel, such as its high tensile strength and resistance to deformation, allow it to withstand the intense pressure exerted on the pipes. Additionally, steel pipes can be manufactured with thick walls and seamless construction, further enhancing their ability to handle high-pressure environments. Overall, the robust nature of steel pipes makes them a reliable choice for various industrial applications requiring high-pressure resistance.

Q: What are the different methods of non-destructive testing for steel pipes?: Some of the different methods of non-destructive testing for steel pipes include ultrasonic testing, magnetic particle testing, eddy current testing, radiographic testing, and visual inspection. These methods are used to detect surface and subsurface defects, such as cracks, corrosion, and discontinuities, without causing any damage to the pipes.

Q: How can steel pipes be protected from corrosion?: There are several methods available to protect steel pipes from corrosion. One commonly used method is the application of protective coatings, which create a barrier between the steel and the corrosive elements in the environment. Epoxy is the most widely used coating for steel pipes and offers excellent corrosion resistance. Depending on the specific requirements, polyethylene and polyurethane coatings can also be used. Another effective way to prevent corrosion is through cathodic protection. This technique involves using sacrificial anodes or impressed current systems. Sacrificial anodes, typically made of zinc or aluminum, are attached to the steel pipes and corrode instead of the steel, sacrificing themselves to protect the pipes. Impressed current systems utilize a direct electrical current to counteract the corrosion process. To ensure the longevity of steel pipes, regular maintenance and inspection are crucial. It is important to monitor the condition of the coatings and address any signs of damage or deterioration promptly. Additionally, implementing proper drainage systems to prevent the accumulation of moisture around the pipes is essential for corrosion prevention. Consideration of environmental factors is also necessary when protecting steel pipes from corrosion. This involves mitigating exposure to corrosive substances like acids or chemicals and ensuring adequate ventilation and airflow to prevent moisture and humidity buildup. By implementing a combination of these protective measures, steel pipes can have an extended lifespan and maintain their structural integrity.

Q: How are steel pipes used in the water treatment industry?: Steel pipes are widely used in the water treatment industry for various applications. They are commonly used as conduits to transport water from different sources to treatment plants and distribution systems. Steel pipes are also employed in the construction of water treatment facilities, including filtration units, pumping stations, and storage tanks. Additionally, steel pipes are utilized in the distribution network to deliver treated water to consumers. The durability and strength of steel make it an ideal choice for handling the high pressure and corrosive conditions often present in water treatment processes.

Q: What are the advantages of using steel pipes in construction?: There are several advantages of using steel pipes in construction. Firstly, steel pipes are incredibly strong and durable, providing excellent structural integrity and long-term reliability. They can withstand high pressure and heavy loads, making them suitable for various applications such as water and gas transportation, oil pipelines, and building frameworks. Secondly, steel pipes have a high resistance to corrosion, which ensures longevity and reduces maintenance costs. Additionally, steel pipes are versatile and can be easily customized to meet specific project requirements, as they come in various sizes, shapes, and thicknesses. Lastly, steel pipes are environmentally friendly, as they are recyclable, reducing the overall carbon footprint of construction projects.

Q: Can steel pipes be used for oil transportation?: Yes, steel pipes are commonly used for oil transportation due to their high strength, durability, and resistance to corrosion.

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 durability and heat resistance. These pipes are used to transport geothermal fluids, such as water or steam, from the underground reservoir to the surface, where they can be utilized for heating or electricity generation. The high strength and corrosion resistance of steel pipes make them ideal for withstanding the harsh conditions and high temperatures encountered in geothermal applications. Additionally, steel pipes can be easily welded and connected, allowing for efficient installation and maintenance of geothermal systems.

Q: What are the common applications of seamless steel pipes?: Seamless steel pipes have numerous common applications in various industries due to their unique properties. Here are some of the most common applications of seamless steel pipes: 1. Oil and gas industry: Seamless steel pipes are widely used in the oil and gas industry for the transportation of oil, gas, and other fluids. They are preferred due to their high strength, durability, and resistance to corrosion, making them suitable for harsh environments. 2. Construction and infrastructure: Seamless steel pipes are extensively used in construction projects, including the construction of buildings, bridges, and tunnels. They are ideal for structural applications due to their ability to withstand heavy loads and provide excellent strength and stability. 3. Automotive industry: Seamless steel pipes are a crucial component in the manufacturing of automotive parts, such as exhaust systems, engine components, and hydraulic systems. They offer high strength, reliability, and resistance to heat, making them suitable for demanding automotive applications. 4. Mechanical and engineering applications: Seamless steel pipes find usage in various mechanical and engineering applications, including machinery, equipment, and manufacturing processes. They are commonly used for carrying fluids, gases, and steam, as well as for the transmission of power in machinery. 5. Power generation: Seamless steel pipes are extensively used in power plants for the transportation of steam and hot water. They are capable of withstanding high pressure and temperature, making them ideal for power generation applications. 6. Petrochemical industry: Seamless steel pipes are crucial in the petrochemical industry for the transportation of various chemicals, gases, and liquids. They have excellent resistance to corrosion, which is essential when dealing with hazardous and corrosive substances. 7. Mining industry: Seamless steel pipes are used in the mining industry for various applications, including the transportation of slurry, water, and other mining-related fluids. They offer durability, reliability, and resistance to abrasion, making them suitable for the challenging mining environment. 8. Aerospace industry: Seamless steel pipes find applications in the aerospace industry for manufacturing aircraft components, such as hydraulic systems, fuel lines, and structural parts. They provide high strength-to-weight ratio and resistance to extreme temperatures and pressure. Overall, the common applications of seamless steel pipes span a wide range of industries, thanks to their exceptional properties, including strength, durability, resistance to corrosion and high temperatures, making them an essential component in various industrial processes and infrastructure development.

Q: What are the different types of steel pipe nipples?: Various applications commonly use several types of steel pipe nipples, including seamless, welded, threaded, and grooved. 1. For high-pressure or critical applications, seamless steel pipe nipples are preferred due to their superior strength and reliability. They are manufactured from a solid piece of steel without any seams or joints. Depending on the specific requirements, seamless nipples can be either threaded or plain-ended. 2. Welded steel pipe nipples, on the other hand, are made by joining multiple pieces of steel through welding. They are commonly used in non-critical applications that do not involve high pressure. Welded nipples are available in both threaded and plain-ended options. 3. Threaded steel pipe nipples have external threads at one or both ends, making it easy to connect them to other threaded fittings or pipes. They are commonly used in plumbing, water supply systems, and other applications where a secure and leak-free connection is crucial. Threaded nipples come in various lengths and diameters to accommodate different requirements. 4. Grooved steel pipe nipples feature a groove or indentation around their circumference, allowing for easy installation using grooved couplings. They are commonly used in fire protection systems, HVAC systems, and other applications where quick and efficient installation is necessary. Grooved nipples are available in various sizes and configurations to suit different piping systems. To summarize, there are different types of steel pipe nipples, including seamless, welded, threaded, and grooved. Each type has its own advantages and is suitable for specific applications. It is essential to consider the project's specific requirements and conditions before selecting the appropriate type of steel pipe nipple.

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