• Square Steel Pipe with Best Quality JIS, GB, DIN, ASTM System 1
  • Square Steel Pipe with Best Quality JIS, GB, DIN, ASTM System 2
Square Steel Pipe with Best Quality JIS, GB, DIN, ASTM

Square Steel Pipe with Best Quality JIS, GB, DIN, ASTM

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
20 m.t.
Supply Capability:
15000 m.t./month

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 1Structure of Square Steel Pipe: 

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe. 

 

2‍‍Main Features of Square Steel Pipe:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price  

 

3Square Steel Pipe Specification

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

8 - 33 mm

Section Shape

Round

Outer Diameter

133 - 219 mm

Place of Origin

Shandong, China (Mainland)

Secondary Or Not

Non-secondary

Application

Hydraulic Pipe

Technique

Cold Drawn

Certification

API

Surface Treatment

factory state or painted black

Special Pipe

API Pipe

Alloy Or Not

Non-alloy

Length

5-12M

Outer Diameter

21.3-610mm

Grade 

20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B

Standard

ASME, ASTM

 

1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

 

4FAQ of Square Steel Pipe 

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.

 

5、‍‍Square Steel Pipe Images ‍‍

 

 

Q:What are the different grades of steel used in pipes?
The different grades of steel used in pipes include carbon steel, alloy steel, stainless steel, and duplex stainless steel.
Q:How are steel pipes transported?
Steel pipes can be transported through different means depending on their size, weight, and the distance they need to cover. The primary modes of transportation for steel pipes are trucks, trains, and ships. For shorter distances, trucks are often used to transport steel pipes. The pipes are loaded onto flatbed or specialized trailers designed to securely hold and transport them. Trucks are convenient for transporting steel pipes to nearby locations or construction sites, as they can easily navigate local roads and highways. For longer distances, trains are the preferred mode of transportation. Steel pipes are loaded onto flatcars, which are specifically designed to carry heavy loads. Trains offer a cost-effective and efficient means of transporting large quantities of steel pipes over long distances. They can accommodate pipes of various lengths and diameters, making them a versatile option. When it comes to international shipments or transportation over bodies of water, ships are commonly used. Steel pipes can be loaded into shipping containers or onto the deck of cargo ships. Shipping containers provide protection from weather conditions and ensure the pipes remain secure during transit. Specialized ships equipped with cranes can handle large and heavy pipes, making the transportation of oversized steel pipes possible. In certain cases, pipelines can be constructed to transport steel pipes directly from the manufacturing facility to the desired location. This method is commonly used for oil, gas, or water pipelines. By laying the pipes underground, the need for separate transportation is eliminated. Overall, the transportation of steel pipes involves a range of methods, including trucks, trains, ships, and pipelines. The choice of method depends on factors such as distance, quantity, and project requirements. Each method offers its own advantages and is selected based on considerations such as cost, efficiency, and logistics.
Q:Can steel pipes be used for chimney flues?
Yes, steel pipes can be used for chimney flues. Steel pipes are commonly used for chimney flues due to their durability, heat resistance, and ability to withstand high temperatures. They provide a reliable and efficient solution for venting smoke and gases from a fireplace or stove.
Q:Can steel pipes be used for sewage and wastewater systems?
Yes, steel pipes can be used for sewage and wastewater systems. Steel pipes are durable, strong, and resistant to corrosion, making them suitable for transporting sewage and wastewater. They are commonly used in various industrial and municipal applications due to their ability to withstand high pressure and provide long-lasting performance.
Q:What are the different types of flanges used with steel pipes?
There are several types of flanges that are commonly used with steel pipes, including slip-on flanges, weld neck flanges, threaded flanges, socket weld flanges, lap joint flanges, and blind flanges. Each type has its own unique design and application, and they are used to connect and secure steel pipes together in various industrial and construction settings.
Q:Can steel pipes be used for underground cooling systems?
Yes, steel pipes can be used for underground cooling systems. Steel pipes are commonly used in various applications, including underground cooling systems, due to their durability, strength, and resistance to corrosion. They can effectively handle the high pressure and temperature demands of cooling systems. Additionally, steel pipes can be welded or threaded together, allowing for easy installation and maintenance. However, it is important to ensure that the steel pipes are properly coated or insulated to prevent corrosion and maintain efficiency in heat transfer.
Q:Is steel pipe made of profiles?
According to the shape of the cross-section, the steel is generally divided into profiles, plates, pipes and metal products in four categories.Therefore, the steel pipe belongs to the pipe, not the profile.
Q:What is the difference between steel pipes and plastic pipes?
Steel pipes are made from a strong and durable metal, while plastic pipes are made from synthetic materials like PVC or polyethylene. Steel pipes are typically used for high-pressure applications and in areas where strength and durability are key factors. On the other hand, plastic pipes are more lightweight, corrosion-resistant, and easier to install. They are commonly used for low-pressure applications and in areas where chemical resistance is important.
Q:How do you calculate the bending moment of a steel pipe?
To determine the bending moment of a steel pipe, one must take into account both the applied load and the structural characteristics of the pipe. The bending moment quantifies the internal forces within the pipe caused by the applied load. To calculate the bending moment, one can use the following equation: Bending Moment = Load x Distance In this equation, the load represents the external force acting on the pipe, and the distance refers to the separation between the point of load application and the point where the bending moment is being evaluated. For an accurate bending moment calculation, it is necessary to consider the properties of the steel pipe. These properties encompass the pipe's cross-sectional area, second moment of area (also known as the moment of inertia), and the modulus of elasticity. The second moment of area demonstrates the pipe's resistance to bending and can be computed based on the dimensions of the pipe's cross-section. The modulus of elasticity signifies the pipe's stiffness and can be obtained from material properties data. Once the load, distance, cross-sectional area, moment of inertia, and modulus of elasticity are determined, they can be inputted into the bending moment equation to ascertain the bending moment for the steel pipe. It is important to recognize that the calculation of bending moment assumes linear elastic behavior, which implies that the pipe does not surpass its elastic limit nor undergo plastic deformation. If the pipe is exposed to loads surpassing its capacity, the bending moment calculation may not accurately depict the actual behavior of the pipe. In such instances, it is recommended to consult a structural engineer or employ more sophisticated analysis methods to precisely evaluate the bending moment.
Q:Can steel pipes be threaded?
Yes, steel pipes can be threaded.

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