• 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:Can steel pipes be used for underground water lines?
Yes, steel pipes can be used for underground water lines.
Q:A333gr6 steel pipe and domestic material of the same?
A333Gr.6 steel is no nickel steel is a kind of fine grain aluminum low temperature toughness of steel, therefore, also called Al killed steel. A333Gr.6 belongs to the United States ANSI and ASTM-SA333 cryogenic steel standards and is used at the lowest impact temperature of -46 degrees celsius. Its temperature, range of use and fracture toughness value are similar to those of domestic 16Mn steel (the minimum usage temperature of 16Mn steel is -40 degrees Celsius).
Q:How do you prevent steel pipes from rusting?
To prevent steel pipes from rusting, a common method is to apply a protective coating such as paint or epoxy. Additionally, regularly inspecting and maintaining the pipes, promptly repairing any damage or corrosion, and ensuring proper drainage to prevent moisture buildup are essential preventive measures.
Q:How are steel pipes used in the renewable energy sector?
Steel pipes are widely used in the renewable energy sector for various applications. They are commonly used for the construction of wind turbine towers, providing structural support and stability. Steel pipes are also used in the construction of solar power plants, where they are utilized for the installation of solar panels, mounting structures, and support systems. Additionally, steel pipes are employed in geothermal energy projects, helping to extract and transfer hot water or steam from underground reservoirs. Overall, steel pipes play a crucial role in the renewable energy sector by facilitating the efficient generation and transmission of clean energy.
Q:What is the role of steel pipes in the transportation of water?
The role of steel pipes in the transportation of water is to provide a durable and reliable infrastructure for the safe and efficient conveyance of water from its source to various destinations. Steel pipes are known for their strength, corrosion resistance, and ability to withstand high pressure, making them ideal for water transportation systems. These pipes ensure that water is delivered to homes, businesses, and other locations, while maintaining its quality and preventing leaks or contamination.
Q:What are the different testing methods used for steel pipes?
To ensure the quality and reliability of steel pipes, various testing methods are employed. These methods include: 1. Non-destructive Testing (NDT): Ultrasonic testing, magnetic particle inspection, and liquid penetrant testing are utilized in NDT to identify surface or subsurface defects in steel pipes without causing any damage. 2. Mechanical Testing: Mechanical testing encompasses various tests to evaluate the mechanical properties of steel pipes, such as tensile strength, yield strength, elongation, hardness, and impact resistance. These tests determine the structural integrity and performance of the pipes. 3. Hydrostatic Testing: This method involves subjecting steel pipes to high-pressure water to assess their ability to withstand expected operating conditions. The pipes are filled with water and pressurized to a predetermined level for a specified duration. Any leaks or deformations are detected during this test. 4. Dimensional Inspection: This testing method ensures that steel pipes meet specified dimensional requirements. It involves measuring critical dimensions such as diameter, wall thickness, and length to verify compliance with applicable standards. 5. Visual Inspection: Trained inspectors visually assess the external appearance of steel pipes using this basic method. They examine the pipes for surface defects such as cracks, corrosion, or irregularities in shape or finish. 6. Chemical Analysis: Chemical analysis is conducted to determine the composition and elemental content of steel pipes. It ensures that the pipes are made from the correct grade of steel and meet required chemical composition standards. 7. Metallographic Examination: Metallography involves examining the microstructure of steel pipes under a microscope to evaluate their quality and integrity. It helps identify internal defects like grain boundaries, inclusions, or improper heat treatment that may impact overall performance. By employing these testing methods, manufacturers and inspectors can guarantee that steel pipes meet necessary quality standards and are suitable for their intended applications.
Q:How do you calculate the pipe friction loss for steel pipes?
The pipe friction loss for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, flow rate, and fluid properties. This equation considers the pressure drop caused by friction as the fluid flows through the pipe. By solving this equation, the pipe friction loss can be determined.
Q:Can steel pipes be used for underground applications?
Yes, steel pipes can be used for underground applications. Steel pipes are highly durable and can withstand the pressure and corrosion that may be encountered in underground environments. They are commonly used for various underground applications such as water supply, sewage systems, and underground utility lines.
Q:Are steel pipes suitable for desalination plants?
Yes, steel pipes are suitable for desalination plants. Steel pipes offer several advantages that make them a suitable choice for desalination plants. Firstly, steel pipes are highly resistant to corrosion, which is crucial in desalination plants where the presence of saltwater can be highly corrosive. The corrosion resistance of steel pipes ensures the longevity and durability of the infrastructure, reducing maintenance and replacement costs. Secondly, steel pipes have high strength and can withstand high-pressure conditions, which are often required in desalination plants. The ability of steel pipes to handle high-pressure water flow without any deformations or leaks ensures the efficient and reliable operation of the desalination process. Furthermore, steel pipes have excellent heat resistance properties, making them suitable for desalination plants that often involve heat-intensive processes such as distillation or reverse osmosis. Steel pipes can withstand high temperatures without any structural damage, ensuring the safe and efficient transfer of heated water or steam. In addition, steel pipes are readily available and have a wide range of sizes and specifications, allowing for flexibility in design and construction of desalination plants. This availability and versatility make steel pipes a cost-effective choice for desalination projects. Overall, due to their corrosion resistance, high strength, heat resistance, availability, and cost-effectiveness, steel pipes are highly suitable for desalination plants and are widely used in the industry.
Q:How are steel pipes insulated to prevent noise transmission?
Steel pipes are typically insulated to prevent noise transmission through the use of materials such as mineral wool, fiberglass, or foam. These insulation materials are wrapped around the pipes to create a barrier that absorbs and reduces sound waves, preventing them from traveling and causing noise transmission.

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