• 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: Is steel pipe made of profiles?
In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape.
Q: Can steel pipes be used for fire sprinkler systems?
Yes, steel pipes can be used for fire sprinkler systems. Steel pipes are commonly used in fire sprinkler systems due to their strength, durability, and fire-resistant properties. They are capable of withstanding high temperatures and are less prone to damage from fire, making them a suitable choice for such systems.
Q: How can galvanized steel tubes be painted on the surface?
Galvanized parts are nonferrous metals, ferrous metals are black, all metal adhesion is poor;
Q: Can steel pipes be used for natural gas processing plants?
Yes, steel pipes can be used for natural gas processing plants. Steel pipes are commonly used in the oil and gas industry due to their high strength, durability, and resistance to corrosion. They can safely transport natural gas and are capable of withstanding the high pressure and temperature conditions typically found in processing plants.
Q: Are steel pipes suitable for use in acidic environments?
Yes, steel pipes are generally suitable for use in acidic environments. However, the specific grade of steel and the concentration of the acid should be considered to ensure proper corrosion resistance. Coating or lining the pipes with materials such as epoxy or rubber can also enhance their resistance to acidic conditions.
Q: What are the different methods of pipe support for steel pipes?
There are several methods of pipe support for steel pipes, including clamps, hangers, brackets, and guides. Clamps are used to secure pipes to a structure, while hangers suspend the pipes from overhead supports. Brackets provide lateral support and stability, and guides are used to control pipe movement and prevent excessive sagging. These various methods ensure the proper installation and stability of steel pipes in different applications.
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: Can steel pipes be used for conveying hydraulic fluids?
Yes, steel pipes can be used for conveying hydraulic fluids. Steel pipes have high tensile strength and excellent resistance to high pressure, making them suitable for hydraulic applications. They can withstand the high operating pressures and temperature fluctuations that hydraulic systems often experience. Additionally, steel pipes are durable and have a long lifespan, ensuring reliable and efficient fluid transmission in hydraulic systems. However, it is important to ensure that the steel pipes used are compatible with the specific hydraulic fluid being conveyed to prevent corrosion or degradation of the pipe material.
Q: How are steel pipes tested for quality and strength?
Steel pipes are tested for quality and strength through various methods such as destructive and non-destructive testing. Destructive testing includes tests like tensile, impact, and hardness tests, which measure the strength and durability of the pipes. Non-destructive testing methods like ultrasonic or X-ray examination are used to detect any defects or flaws in the pipes without causing any damage. These testing methods ensure that steel pipes meet the required quality and strength standards before being used in various applications.
Q: How do you calculate the weight of steel pipes?
To calculate the weight of steel pipes, you would need to know the dimensions of the pipe, including its outer diameter, inner diameter, and length. By using the formula for the volume of a cylinder, which is πr²h, where r is the radius (half the diameter) and h is the height or length of the pipe, you can calculate the volume of the pipe. Then, by multiplying the volume by the density of steel, which is typically around 7850 kg/m³, you can determine the weight of the steel pipe.

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