• Hollow Section with Different Specifications from CNBM System 1
  • Hollow Section with Different Specifications from CNBM System 2
  • Hollow Section with Different Specifications from CNBM System 3
Hollow Section with Different Specifications from CNBM

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

Hollow Section with Different Specifications

 

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:

15*15---80*80

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: What is the shear strength of steel pipes?
The shear strength of steel pipes can vary depending on various factors such as the grade and thickness of the steel, as well as the manufacturing process and any additional treatments or coatings applied. In general, steel pipes have a high shear strength due to the inherent strength of steel as a material. The shear strength is typically determined through testing and can range from 50,000 to 80,000 pounds per square inch (PSI) for common grades of steel pipes. However, it is important to note that the shear strength can be significantly higher for specialized or higher-grade steel pipes designed for specific applications such as offshore drilling or high-pressure systems. Therefore, it is advisable to consult the manufacturer's specifications or engineering standards for accurate and specific shear strength values for a particular steel pipe.
Q: What are the different strategies for pipe laying using steel pipes?
There are several strategies for pipe laying using steel pipes, including open cut trenching, trenchless methods such as horizontal directional drilling (HDD), microtunneling, and pipe jacking. In open cut trenching, a trench is dug and the steel pipes are laid in the trench before it is backfilled. HDD involves drilling a small pilot hole underground and then pulling the steel pipes through the hole. Microtunneling uses a remote-controlled boring machine to excavate a tunnel and install the steel pipes simultaneously. Pipe jacking involves pushing the steel pipes into the ground using hydraulic jacks while excavating the soil in front of the pipes. Each strategy has its advantages depending on the specific project requirements and conditions.
Q: How are steel pipes recycled at the end of their life cycle?
Steel pipes are typically recycled at the end of their life cycle by first being collected and sorted at recycling facilities. They are then cleaned and processed to remove any contaminants. The pipes are further broken down into smaller pieces and melted in a furnace. Once the molten steel is formed, it can be used to create new steel products, such as pipes or other construction materials. This recycling process helps reduce the demand for new steel production and conserves valuable resources.
Q: What are the factors to consider when designing a steel pipe system?
When designing a steel pipe system, several factors need to be considered to ensure its functionality, durability, and efficiency. These factors include: 1. Pressure and temperature requirements: Determining the maximum pressure and temperature that the steel pipe system will be exposed to is crucial. This information is essential for selecting the appropriate pipe material, thickness, and jointing method to withstand the system's operating conditions. 2. Pipe material: Choosing the right material for the steel pipe system is important. Factors such as corrosion resistance, strength, and cost should be considered. Common materials for steel pipes include carbon steel, stainless steel, and alloy steel. 3. Pipe size and thickness: Calculating the adequate pipe size and wall thickness is essential to ensure the required flow rate and pressure drop within the system. The pipe size affects the system's efficiency and must be chosen based on the anticipated flow rates and pressure losses. 4. Support and anchoring: Proper support and anchoring are critical to prevent sagging, movement, and stress on the steel pipe system. The design should consider the weight of the pipes, the fluid being transported, and any external forces that may act on the system. 5. Expansion and contraction: Steel pipes expand and contract with temperature variations, causing stress on the system. Expansion joints or loops should be incorporated to allow for thermal growth and contraction, preventing damage and distortion. 6. Fluid compatibility: Understanding the properties of the fluid being transported, such as corrosiveness, viscosity, and potential for sedimentation or scaling, is important in selecting the appropriate pipe material and protective coatings or linings. 7. Accessibility and maintenance: Consideration should be given to the accessibility of the system for installation, inspection, and maintenance purposes. Proper access points, valves, and fittings should be included in the design to allow for easy maintenance and repairs. 8. Environmental factors: The steel pipe system may be exposed to various environmental conditions, such as extreme temperatures, humidity, or corrosive substances. These factors should be considered when selecting the pipe material, protective coatings, and insulation. 9. Regulatory compliance: Compliance with applicable industry standards, codes, and regulations is essential. The design should adhere to safety guidelines and applicable building codes to ensure the pipe system's integrity and longevity. 10. Cost consideration: Finally, the overall cost of the steel pipe system, including material, installation, maintenance, and energy consumption, should be taken into account. Balancing cost-effectiveness with performance requirements is crucial in achieving an efficient and economical design. By considering these factors, engineers and designers can create a steel pipe system that is suitable for its intended purpose, ensuring its longevity, reliability, and safety.
Q: What are the common applications of steel pipes in construction?
Steel pipes are commonly used in construction for various applications such as structural supports, plumbing systems, gas and water distribution, and underground utilities. They provide strength, durability, and resistance to corrosion, making them suitable for both above-ground and underground installations.
Q: What is the electrical conductivity of steel pipes?
Due to its metallic nature, steel pipes possess a notable degree of electrical conductivity. The specific composition and properties of the steel employed can influence the electrical conductivity of these pipes. Typically, steel exhibits a conductivity range of 6.99 × 10^6 to 9.64 × 10^6 siemens per meter (S/m) at room temperature. Consequently, steel pipes are capable of effectively conducting electricity and finding application in diverse fields, including electrical transmission and grounding systems.
Q: How are steel pipes used in the mining and mineral processing industry?
Steel pipes are commonly used in the mining and mineral processing industry for various purposes such as transporting liquids, gases, and slurries, as well as providing structural support for mining infrastructure. These pipes are highly durable and resistant to corrosion, making them suitable for harsh and demanding environments. They are used for tasks such as transporting water for mining operations, carrying tailings and waste materials, and conveying mining chemicals. Additionally, steel pipes are utilized in the construction of mine shafts, tunnels, and processing plants, providing a strong and reliable framework for mining operations.
Q: How are steel pipes used in the construction of bridges?
Steel pipes are commonly used in the construction of bridges for various purposes such as supporting the bridge structure, providing stability, and facilitating the passage of fluids like water or gases. Steel pipes are used as piers or piles to support the weight of the bridge, acting as strong and durable foundations. They are also used for constructing the bridge's framework, such as beams and trusses, which provide the necessary strength and load-bearing capacity. Additionally, steel pipes may be used as conduits for utilities like water, gas, or electrical cables, allowing for efficient transportation across the bridge.
Q: Can steel pipes be used for underground transportation tunnels?
Yes, steel pipes can be used for underground transportation tunnels. Steel pipes are commonly used in the construction of underground tunnels for various purposes such as transporting water, gas, and sewage. They are known for their durability, strength, and resistance to corrosion, making them suitable for underground applications. Steel pipes can withstand the weight and pressure exerted by the surrounding soil and can be reinforced to ensure stability. Additionally, steel pipes can be manufactured in various sizes and lengths, allowing for flexibility in tunnel design. However, it is essential to consider factors such as soil conditions, load-bearing capacity, and potential environmental impacts when deciding to use steel pipes for underground transportation tunnels.
Q: How are steel pipes used in the manufacturing of boilers?
Steel pipes are an integral component in the manufacturing of boilers due to their strength, durability, and heat-resistant properties. Boilers are used to generate steam or heat water for various industrial and commercial applications. Steel pipes are primarily used in the construction of boiler tubes, which serve as the main heat transfer medium. These tubes are subjected to high temperatures and pressure, making it crucial to use a material that can withstand these extreme conditions. Steel, with its excellent mechanical properties and resistance to corrosion, is the ideal material for this purpose. The manufacturing process of boilers involves forming the steel pipes into specific shapes and sizes to create the boiler tubes. These tubes are then connected to form a network of channels through which hot gases or water flow. The steel pipes used in this process are often seamless or welded, depending on the requirements of the boiler design. The steel pipes used in boilers must meet stringent quality standards to ensure the safety and efficiency of the system. They are tested for their ability to withstand high pressure, temperature, and corrosion. Additionally, they undergo various inspections and tests, such as ultrasonic testing and radiographic examination, to detect any defects or flaws that could compromise the boiler's performance. In summary, steel pipes play a crucial role in the manufacturing of boilers by serving as the primary material for boiler tubes. Their strength, durability, and heat-resistant properties make them suitable for withstanding high temperatures and pressure. These pipes undergo rigorous testing to ensure their quality and reliability in creating efficient and safe boiler systems.

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