• Square rectangular tube for engineering construction System 1
  • Square rectangular tube for engineering construction System 2
Square rectangular tube for engineering construction

Square rectangular tube for engineering construction

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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1Structure of  Square rectangular tube for 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 engineering construction:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 Square rectangular tube for engineering construction Specification

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 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 engineering construction Images ‍‍

 

 

 

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:Can steel pipes be used for hydropower systems?
Hydropower systems can indeed utilize steel pipes. For a variety of purposes in these systems, steel pipes are commonly employed, particularly for penstocks, which facilitate the transportation of water from a reservoir to a turbine. The strength, durability, and capacity to withstand high pressure and water flow make steel pipes a preferred option. Additionally, their resistance to corrosion ensures their suitability for long-term usage in hydropower systems. Moreover, the ease of welding or joining steel pipes enables flexibility in system design and installation. In summary, steel pipes are a dependable and extensively utilized alternative for hydropower systems.
Q:Can steel pipes be galvanized?
Indeed, it is possible to galvanize steel pipes. Galvanization involves the application of a safeguarding zinc layer to steel or iron in order to hinder corrosion. The steel pipes are immersed in a solution of molten zinc, resulting in a chemical union between the zinc and steel that produces a protective coating resistant to corrosion. Galvanization finds widespread use across multiple fields, including plumbing, construction, and outdoor structures, primarily to prolong the durability of steel pipes and inhibit rust formation.
Q:Can steel pipes be used for chemical refineries?
Yes, steel pipes can be used for chemical refineries. Steel pipes are commonly used in chemical industries due to their high strength, durability, and resistance to corrosion. They can withstand high pressure and temperature conditions, making them suitable for transporting various chemicals and fluids within a refinery. Additionally, steel pipes can be easily welded, ensuring a secure and leak-proof system in chemical refineries.
Q:How are steel pipes used in the construction of underground utilities?
Steel pipes are commonly used in the construction of underground utilities due to their durability and strength. They are used to transport various substances such as water, gas, and sewage underground, ensuring efficient and reliable distribution. Steel pipes are resistant to corrosion and can withstand high pressure, making them ideal for underground applications where they need to withstand the weight of the soil and other environmental factors. Additionally, steel pipes are easy to install and maintain, making them a cost-effective choice for underground utility construction projects.
Q:How are steel pipes used in HVAC systems?
Steel pipes are used in HVAC systems for various purposes such as transporting hot or cold water, steam, or refrigerant throughout the system. They are commonly used for supply and return lines, as well as for connecting various HVAC components like chillers, boilers, air handlers, and heat exchangers. Steel pipes are preferred in HVAC systems due to their durability, strength, and resistance to corrosion and high pressure.
Q:DN150 welded steel tubes one meter multiple
DN150 welded steel pipe according to the thickness of two specifications: outer diameter 165mm, wall thickness 4.5mm, 17.81Kg per meter weight, wall thickness of 5.5mm, 21.63Kg. per meter weight
Q:What is the difference between steel pipe and copper pipe?
The main difference between steel pipe and copper pipe lies in their composition and properties. Steel pipe is typically made from carbon steel, which is an alloy of iron and carbon. On the other hand, copper pipe is made from copper, a naturally occurring metal. One key difference is their durability. Steel pipe is known for its strength and resilience, making it suitable for high-pressure applications and harsh environments. It is highly resistant to corrosion, making it a long-lasting option. Copper pipe, on the other hand, is known for its malleability and ease of installation. It is less durable than steel and can corrode over time, especially when exposed to certain chemicals or aggressive water conditions. Another difference is their thermal conductivity. Copper pipe is an excellent conductor of heat, making it ideal for applications that require efficient heat transfer, such as in plumbing systems for hot water supply. Steel pipe, however, has a lower thermal conductivity compared to copper, which may affect its performance in certain applications. Cost is another factor to consider. Copper pipe is generally more expensive than steel pipe due to the higher cost of copper as a raw material. Additionally, copper pipe requires specialized tools and techniques for installation, which can add to the overall cost. Steel pipe, on the other hand, is often more cost-effective and easier to work with, making it a popular choice for a wide range of applications. In summary, the main differences between steel pipe and copper pipe are their composition, durability, thermal conductivity, and cost. Each type has its own advantages and disadvantages, and the choice between them depends on the specific requirements of the application at hand.
Q:What is the difference between seamless and welded steel pipes?
The main difference between seamless and welded steel pipes lies in their manufacturing process. Seamless steel pipes are made by piercing a solid billet to form a hollow tube, while welded steel pipes are formed by rolling a flat sheet of steel into a tube and then welding the seam. This difference in manufacturing leads to varying characteristics such as strength, appearance, and cost. Seamless pipes are generally considered to have higher strength and are more aesthetically pleasing, but they are also more expensive to produce. Welded pipes, on the other hand, are more cost-effective and suitable for less demanding applications.
Q:Can steel pipes be used for conveying abrasive slurries?
Yes, steel pipes can be used for conveying abrasive slurries. Steel pipes are known for their durability and strength, making them suitable for handling abrasive materials. Additionally, their smooth interior surface reduces friction and minimizes the risk of clogs or blockages caused by the abrasive particles present in slurries.

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