• Square rectangular tube for multi variety of engineering construction System 1
  • Square rectangular tube for multi variety of engineering construction System 2
Square rectangular tube for multi variety of engineering construction

Square rectangular tube for multi variety of engineering construction

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
15 m.t.
Supply Capability:
17000 m.t./month

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1Structure of  Square rectangular tube for multi variety of engineering construction: 

Square tube, square tube is a kind of call and rectangular tube, is equal and not equal to the length of steel pipe. Is the strip through the process of processing roll system. In general is the strip through the demolition of the package, flat, curly, welded to form a circular tube, and then rolled into a square tube and then cut into a square tube and then cut into the required length.

 

2‍‍Main Features of  Square rectangular tube for multi variety of engineering construction:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 Square rectangular tube for multi variety of engineering constructionSpecification

Standard

GB, DIN, ASTM

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

1.5 - 25 mm

Section Shape

Square  and rectangular

Outer Diameter

20*20 mm-------400*400mm   20*30mm*300*500mm

Place of Origin

Tianjin, China (Mainland)

Length

3-12M

Outer Diameter

20*20 mm-------400*400mm   20*30mm*300*500mm

Grade 

235B   345B 

Standard

ASME, ASTM

 

1) Material:(ASTM A 106/A53 GRB.API5LGRB,GB,235B,345B

2) Specification range:OD: 20*30mm----300*500mm 20*20 mm---400*400mm    ,WT: 1.5 - 25 mm   ,length:3-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut ,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of  Square rectangular tube for multi variety of engineering construction:  

How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

6 Square rectangular tube for multi variety of engineering construction  Images ‍‍

 

 

Q: How are steel pipes used in the manufacturing of chemical processing equipment?
Due to their durability, corrosion resistance, and ability to withstand high temperatures and pressures, steel pipes find common use in the manufacturing of chemical processing equipment. These pipes serve two primary functions within the equipment: as conduits for transporting raw materials and as channels for distributing processed products. Firstly, steel pipes safely and efficiently transport raw materials, such as chemicals and solvents, from storage tanks or external sources to various processing units within the equipment. This ensures accurate and controlled dosage and distribution. Steel pipes are chosen for this task due to their strength, which enables them to handle the high pressures and temperatures associated with chemical processing. Secondly, steel pipes distribute processed products throughout the equipment. Once raw materials have undergone chemical reactions and transformations, the resulting products must be transported to the next stage or collected for further processing. Steel pipes are ideal for this purpose as they can withstand the corrosive nature of many chemicals and the high temperatures encountered during these processes. In addition, steel pipes offer versatility and compatibility with various chemicals and solvents, making them well-suited for use in chemical processing equipment. They can be easily customized to accommodate specific requirements, such as different pipe sizes, shapes, and fittings. This flexibility allows for efficient design and installation, ensuring a seamless flow of materials and products throughout the equipment. In conclusion, steel pipes play a crucial role in the manufacturing of chemical processing equipment by providing a reliable and efficient means of transporting raw materials and distributing processed products. Their durability, corrosion resistance, and ability to withstand high temperatures and pressures make them an essential component in ensuring the safe and efficient operation of chemical processing equipment.
Q: What are the factors that affect the lifespan of steel pipes in different environments?
The factors that affect the lifespan of steel pipes in different environments include the pH level of the surrounding soil or water, presence of corrosive chemicals, humidity and moisture levels, exposure to extreme temperatures, mechanical stress or pressure, and the quality of protective coatings or corrosion inhibitors applied to the pipes.
Q: How do you join two steel pipes together without welding?
One way to join two steel pipes together without welding is by using threaded connections. This involves screwing a threaded fitting onto each end of the pipes, creating a secure and durable connection. Additionally, other methods such as mechanical couplings or flanges can also be used to join steel pipes without welding. These methods provide a reliable and convenient alternative to welding for joining steel pipes together.
Q: How do steel pipes handle seismic expansion joints?
Steel pipes handle seismic expansion joints by allowing for movement and flexibility. These pipes are designed to withstand the forces caused by seismic activity, such as earthquakes, by accommodating expansion and contraction without causing damage to the overall structure. The joints in steel pipes are often equipped with specialized components, such as bellows or flexible couplings, that can absorb the movement and prevent excessive stress on the pipeline. This ensures the integrity and safety of the pipeline system during seismic events.
Q: Can steel pipes be used for transporting gases and liquids?
Yes, steel pipes can be used for transporting gases and liquids. Steel pipes are known for their high strength, durability, and resistance to corrosion, making them an ideal choice for transporting various substances. Additionally, steel pipes have the ability to withstand high pressure and temperature, making them suitable for a wide range of applications in industries such as oil and gas, water supply, and chemical processing.
Q: How can steel pipes be protected from corrosion?
Steel pipes can be protected from corrosion through various methods. One common method is the application of protective coatings. These coatings act as a barrier between the steel and corrosive elements in the environment. The most widely used protective coating for steel pipes is epoxy, which provides excellent resistance to corrosion. Other coatings such as polyethylene and polyurethane can also be used depending on the specific application and requirements. Another effective way to protect steel pipes from corrosion is by cathodic protection. This technique involves the use of sacrificial anodes or impressed current systems to prevent corrosion. Sacrificial anodes, typically made of zinc or aluminum, are attached to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves to protect the pipes. Impressed current systems, on the other hand, use a direct electrical current to counteract the corrosion process. Regular maintenance and inspection are crucial in the protection of steel pipes from corrosion. Monitoring the condition of the coatings, checking for any signs of damage or deterioration, and promptly addressing any issues can help prevent corrosion from occurring or spreading. Additionally, implementing proper drainage systems to avoid the accumulation of moisture around the pipes can further protect them from corrosion. Lastly, environmental factors should be taken into consideration when protecting steel pipes from corrosion. This includes mitigating exposure to corrosive substances, such as acids or chemicals, and ensuring proper ventilation and airflow to prevent the buildup of moisture and humidity. 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 structural applications?
Steel pipes are commonly used in structural applications due to their strength, durability, and versatility. They can be used as load-bearing members in buildings, bridges, and other structures to provide support and stability. Additionally, steel pipes can be easily fabricated and joined together, allowing for various configurations and designs. Their resistance to corrosion and ability to withstand high temperatures also make them suitable for applications in harsh environments. Overall, steel pipes play a crucial role in enhancing the structural integrity and longevity of various construction projects.
Q: Is the steel frame on each floor supporting formwork (floor) called full scaffolding?
The use of scaffold as its height, when the ceiling height below 3.6M, no matter what the ceiling decoration, decorative scaffolding are calculated
Q: How are steel pipes transported from the manufacturing site to the construction site?
Steel pipes are typically transported from the manufacturing site to the construction site using various methods such as trucks, trains, ships, or even by air. The most common mode of transportation is trucks, which allow for easy and efficient delivery directly to the construction site.
Q: What are the different methods of wrapping steel pipes for corrosion protection?
There are several different methods of wrapping steel pipes for corrosion protection. These methods can vary depending on the specific application and environmental conditions. Some of the common methods include: 1. Tape Wrapping: This involves wrapping the steel pipes with a corrosion-resistant tape, such as polyethylene or polypropylene tape. The tape acts as a barrier between the pipe surface and the corrosive elements, preventing direct contact and reducing the risk of corrosion. 2. Inner Wrapping: Inner wrapping involves applying a protective coating or lining to the inside surface of the steel pipe. This method is commonly used for pipes that transport fluids or gases, as it provides an additional layer of protection against corrosion from the inside. 3. External Coating: External coating is a widely used method for corrosion protection. It involves applying a protective coating to the outside surface of the steel pipe. The coating can be a variety of materials, such as epoxy, polyethylene, or polyurethane, which provide a barrier against corrosive elements and extend the lifespan of the pipe. 4. Cathodic Protection: Cathodic protection is an electrochemical method used to protect steel pipes from corrosion. It involves connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, which corrodes instead of the pipe. This process helps to prevent the corrosion of the steel pipe by diverting the corrosive current away from the pipe surface. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly used for corrosion protection in underground or submerged applications. These sleeves are made of a heat-activated material that shrinks when heated, creating a tight seal around the pipe. The sleeve forms an effective barrier against moisture and corrosive elements, preventing direct contact with the steel pipe. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating is a thermosetting powder coating that is applied to the surface of the steel pipe and then fused to form a protective layer. This coating provides excellent adhesion and corrosion resistance, making it a popular choice for steel pipes in various applications. It is important to note that the selection of the appropriate method for wrapping steel pipes for corrosion protection depends on factors such as the environment, the type of corrosive elements present, the intended application, and other specific requirements. Professional advice and consultation may be necessary to determine the most suitable method for a particular situation.

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