• Square Carbon Steel Pipes With Reasonable Price System 1
  • Square Carbon Steel Pipes With Reasonable Price System 2
  • Square Carbon Steel Pipes With Reasonable Price System 3
Square Carbon Steel Pipes With Reasonable Price

Square Carbon Steel Pipes With Reasonable Price

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Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
100 m.t.
Supply Capability:
10000 m.t./month

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1.Quick Details

Thickness:

1.0 - 35 mm

Section Shape:

Square

Outer Diameter:

20*20-600*600

Place of Origin:

Shandong China (Mainland)

Secondary Or Not:

Non-secondary

Application:

Structure Pipe

Technique:

Cold Rolled

Certification:

CE

Surface Treatment:

oil,paint

Special Pipe:

Thick Wall Pipe

Alloy Or Not:

Non-alloy

Name:

Square Hollow Steel Pipe/Tube

Shape:

Square/Rectangular

Yield Strength:

360-380Mpa

Tensile Strength:

560-580Mpa

Elongation:

24-28%

Bend Test:

Qualified

Impact Value:

V-notch

Grade:

20#,45#,16Mn,A210,St45,Q235,Q345,Q195,Q215,10#-45#,A53-A369,ST35-ST52,Q195-Q345

Standard:

JIS G3465-2006,JIS G3466,GB/T 3094

2.Specifications

1.    OD:15X15-800X800MM,20X30--600X800MM

2.    Thick.:1.0--35.0MM

3.FAQ of Rectangular Steel Tube

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 dont accord to discription as we give or the promise before you place order, we promise 100% refund.

How about price?
   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 dont 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.

 If you have any question, pls feel free to contact us !

 

4.Rectangular Hot Rolled Steel Tube Image

 

 

Q:What steel pipes are buried for outdoor heating pipes? Seamless or welded tube? Are there any rules for specific countries? Can use the seamed tube?
The pipe material of heating pipe network should be designed according to the requirement. When the design is not specified, the following requirements shall be met:1 when the pipe diameter is less than or equal to 40mm, welded steel pipe shall be used.2 when the pipe diameter is 50 ~ 200mm, welded steel pipe or seamless steel pipe shall be used.3 when the pipe diameter is greater than 200mm, spiral welded steel pipe shall be used.
Q:What are the different types of steel pipe coatings for offshore applications?
There are several types of steel pipe coatings that are commonly used for offshore applications. Some of the most common types include fusion bonded epoxy (FBE) coating, three-layer polyethylene (3LPE) coating, and three-layer polypropylene (3LPP) coating. FBE coating provides excellent corrosion resistance and is often used in subsea pipelines. 3LPE coating combines fusion bonded epoxy with an adhesive and a high-density polyethylene layer, offering superior mechanical protection and corrosion resistance. 3LPP coating, on the other hand, combines fusion bonded epoxy with an adhesive and a polypropylene layer, providing enhanced resistance to high temperatures and chemicals. These coatings help to protect steel pipes from corrosion, abrasion, and other environmental factors, ensuring their durability in offshore environments.
Q:How are steel pipes used in natural gas processing plants?
Steel pipes are used in natural gas processing plants to transport and distribute natural gas from one point to another within the facility. These pipes are capable of withstanding high pressure and temperature, ensuring the safe and efficient flow of the gas throughout the plant. Additionally, steel pipes are resistant to corrosion, which is crucial as natural gas can be corrosive. They are also used for connecting various equipment and components in the processing plant, allowing for the smooth operation of the entire system.
Q:Are steel pipes suitable for potable water systems?
Yes, steel pipes are suitable for potable water systems. They are known for their durability, strength, and resistance to corrosion, making them an excellent choice for transporting and distributing clean drinking water. However, it is important to ensure proper coating and maintenance to prevent any potential contamination or degradation of water quality.
Q:What is a flange and how is it used in steel pipes?
A flange is a flat, circular fitting that is attached to the end of a steel pipe. It is used to connect two pipes or fittings together, allowing for easy assembly and disassembly of the pipeline system. The flange provides a secure and leak-proof connection by bolting the flange to the adjacent flanges or equipment. It also allows for the attachment of valves, pumps, or other components to the pipeline. Overall, flanges play a crucial role in ensuring the integrity and functionality of steel pipes in various industrial applications.
Q:How are steel pipes used in the manufacturing of telecommunications infrastructure?
Steel pipes are used in the manufacturing of telecommunications infrastructure to provide a sturdy and reliable framework for cables and wires. These pipes are commonly used for underground and overhead installations, ensuring protection and support for the necessary communication systems.
Q:Can steel pipes be used for the construction of offshore platforms?
Yes, steel pipes can be used for the construction of offshore platforms. Steel pipes are commonly used in offshore platform construction due to their high strength, durability, and resistance to corrosion. These pipes can be used for various purposes such as structural support, transporting fluids, and as conduits for electrical and communication systems. Additionally, steel pipes can be easily fabricated, installed, and maintained, making them a reliable choice for offshore platform construction.
Q:How long are the seamless tubes? Are they six meters long?
6 meters of a root in general need to be customized, seamless tubes are mostly seven meters above the variable foot
Q:What are the different coatings applied to steel pipes?
There are several different coatings that can be applied to steel pipes to enhance their corrosion resistance and durability. Some common coatings include epoxy coatings, polyethylene coatings, zinc coatings (galvanization), and polyurethane coatings. Each coating has its own specific benefits and is chosen based on the intended application and environmental conditions.
Q:How are steel pipes coated to prevent external corrosion?
Steel pipes are commonly coated to prevent external corrosion through various methods such as galvanization, epoxy coating, or polyethylene wrapping. These coatings act as barriers between the steel surface and the external environment, protecting the pipes from moisture, chemicals, and other corrosive elements.

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