• Welded square tube for building structure System 1
  • Welded square tube for building structure System 2
Welded square tube for building structure

Welded square tube for building structure

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
15 m.t.
Supply Capability:
15000 m.t./month

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1Structure of  Welded square tube for building structure 

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  Welded square tube for building structure 

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 Welded square tube for building structure 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  Welded square tube for building structure :  

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 Welded square tube for building structure Images ‍‍

 

 

Q:What is the difference between steel pipes and fiberglass pipes?
The main difference between steel pipes and fiberglass pipes lies in their composition and properties. Steel pipes are made of metal and are known for their strength, durability, and resistance to high temperatures and pressure. They are commonly used in industrial settings and for transporting liquids and gases. On the other hand, fiberglass pipes are made of glass fibers embedded in a resin matrix, providing them with excellent corrosion resistance, lightweight properties, and insulation capabilities. Fiberglass pipes are often used in applications where corrosion is a concern, such as in chemical processing plants or wastewater treatment facilities.
Q:What are the different testing methods for steel pipes?
There are several testing methods for steel pipes, including visual inspection, ultrasonic testing, magnetic particle testing, dye penetrant testing, radiographic testing, and hydrostatic testing.
Q:What's the difference between hot dip galvanizing and cold galvanizing? Which kind of galvanizing method is good?
Cold galvanizing is zinc plating, the general surface is relatively smooth, no zinc flowers, there are two kinds of resistance to fingerprints and non - Fingerprint
Q:How are steel pipes used in the construction of oil and gas pipelines?
Steel pipes are commonly used in the construction of oil and gas pipelines due to their strength, durability, and resistance to corrosion. These pipes are primarily used for transporting oil and gas over long distances, ensuring a reliable and efficient flow of these resources. The steel pipes are welded together to form a continuous pipeline that can withstand high pressure and extreme weather conditions. Additionally, their smooth interior surface minimizes friction and allows for efficient transportation of oil and gas.
Q:What is galvanized steel pipe?
Galvanized steel pipe is a type of steel pipe that has been coated with a layer of zinc, which helps protect it from corrosion and rust. This coating also increases the pipe's longevity and makes it suitable for various applications, including plumbing, construction, and outdoor structures.
Q:How are steel pipes protected against soil movement?
Steel pipes are protected against soil movement through the use of various measures such as proper installation techniques, trench stabilization, and the implementation of protective coatings. Additionally, the pipes may be anchored or encased in concrete to prevent movement or damage caused by shifting soil.
Q:Can steel pipes be used for transporting slurry?
Yes, steel pipes can be used for transporting slurry. Steel pipes are known for their durability and strength, making them suitable for handling abrasive materials like slurry. The smooth interior surface of steel pipes helps to minimize friction and prevent clogging, ensuring efficient transportation of slurry. Additionally, steel pipes can withstand high pressure and are resistant to corrosion, making them a reliable choice for slurry transport.
Q:Are steel pipes suitable for underground sewage lines?
Yes, steel pipes are suitable for underground sewage lines. They are strong, durable, and resistant to corrosion, making them an excellent choice for sewage systems.
Q:What are the different types of steel pipe couplings?
In the market, there exists a variety of steel pipe couplings to cater to specific applications and needs. The following are some of the commonly used types: 1. Threaded Coupling: This coupling is equipped with threaded ends for easy installation and removal. It is suitable for low-pressure applications and can be used with both threaded and non-threaded pipes. 2. Compression Coupling: Designed to create a secure and leak-proof connection between two pipes, compression couplings consist of two pieces that are tightened together using compression nuts or sleeves, thus forming a tight seal. 3. Slip-On Coupling: A slip-on coupling is a simple and convenient option that can be easily installed by sliding it onto the pipe ends and then securing it in place through welding or bolting. It is commonly used to join pipes with plain ends and is suitable for both high and low-pressure applications. 4. Grooved Coupling: Grooved couplings possess a groove on both pipe ends, allowing them to be connected by using a rubber gasket and coupling housing. This type of coupling ensures a reliable and flexible connection that can accommodate minor misalignments and vibrations. 5. Flanged Coupling: Consisting of two flanges bolted together with a gasket in between, flanged couplings are widely used in high-pressure applications due to their strength and reliability. 6. Welded Coupling: Welded couplings are permanently joined to the pipe ends through a welding process. This type of coupling guarantees a strong and durable connection that is resistant to leaks and vibrations. These examples represent only a fraction of the steel pipe couplings available. The choice of coupling depends on factors such as the pipe type, application requirements, and the desired level of strength and flexibility. It is crucial to select the appropriate coupling to ensure a secure and dependable connection between pipes.
Q:What are the alternatives to steel pipes for various applications?
Some alternatives to steel pipes for various applications include PVC (polyvinyl chloride) pipes, copper pipes, aluminum pipes, and fiberglass pipes. Each alternative has its own advantages and disadvantages, such as cost, durability, and resistance to corrosion, which make them suitable for specific applications.

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