• 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 is the difference between steel pipes and PPR pipes?
Steel pipes are made of a durable and strong material, steel, which makes them suitable for carrying high-pressure fluids and gases. On the other hand, PPR (polypropylene random copolymer) pipes are made of a plastic material, which makes them lightweight, corrosion-resistant, and easy to install. PPR pipes are commonly used for plumbing systems, while steel pipes are more commonly used for industrial applications and heavy-duty purposes.
Q: How are steel pipes protected against galvanic corrosion?
Steel pipes are protected against galvanic corrosion through the use of sacrificial anodes, coatings, or the application of electrical currents. These methods create a barrier or redirect the corrosion process, preventing the steel pipes from deteriorating due to galvanic reactions.
Q: What is the cost of steel pipes compared to other pipe materials?
The cost of steel pipes compared to other pipe materials can vary depending on several factors including the size, grade, and availability of the specific pipe materials. However, in general, steel pipes tend to be more cost-effective compared to other pipe materials. This is because steel is a widely available and versatile material that can be easily manufactured and fabricated into various pipe sizes and shapes. Compared to materials like copper, stainless steel, or plastic, steel pipes are often more affordable due to their lower manufacturing costs. Additionally, steel pipes have a longer lifespan and superior durability, which makes them a cost-effective choice in the long run. They are resistant to corrosion, withstand high pressure and temperature, and can be used in a wide range of applications including plumbing, construction, and infrastructure projects. It is important to note that the cost of steel pipes can still vary depending on market conditions, demand, and location. However, overall, steel pipes are generally considered to be a cost-effective option compared to other pipe materials.
Q: How do steel pipes perform in extreme weather conditions?
Steel pipes are highly resilient and perform exceptionally well in extreme weather conditions. They have excellent resistance to corrosion, impact, and temperature variations, making them ideal for withstanding harsh environments such as extreme heat, cold, and heavy rainfall. Moreover, steel pipes are known for their durability and strength, ensuring that they can withstand the forces exerted by high winds, snow, and even seismic activities. Overall, steel pipes are a reliable choice for various applications in extreme weather conditions.
Q: How do you connect steel pipes together?
To connect steel pipes together, there are several methods commonly used in various industries. One commonly used method is welding. Welding involves heating the ends of the steel pipes and then joining them together using a welding rod or wire. This method creates a strong and durable connection that is capable of withstanding high pressures and temperatures. Another method is threading, where threads are cut into the ends of the steel pipes. These threaded ends can then be screwed together using pipe fittings such as couplings or unions. Threading is commonly used for smaller diameter pipes and is advantageous as it allows for easy disassembly and reassembly of the pipes. Flanges can also be used to connect steel pipes together. Flanges are flat, circular discs with holes in them that can be bolted together. They provide a strong and secure connection, especially for large diameter pipes or pipes that need to be easily disconnected for maintenance or repairs. Pipe fittings such as couplings, tees, elbows, or reducers can also be used to connect steel pipes together. These fittings are typically made of steel or other materials and are designed to be welded, threaded, or connected using other methods like grooving or compression. It's important to note that the method used to connect steel pipes together will depend on various factors such as the pipe size, the application, the required strength, and the specific industry standards or codes that need to be followed. Therefore, it's essential to consult with a qualified professional or refer to industry-specific guidelines when choosing the appropriate method for joining steel pipes.
Q: What connections are there for concrete filled steel tubular column foundations?
Strengthening ring joint is a more common in the construction of steel pipe concrete column construction, it is to beam column connection through the upper and lower plate reinforcing ring bending force transmission way is through two to strengthen the uniform arrangement between the rings radial ribs and rib structure to connect with the ring the pipe wall at the top of the plate, so as to transfer the shear stress, so as to strengthen the thickness and improve the quality of connection engineering advantage. In the process of engineering construction, according to the construction principle of longitudinal reinforcement of Deng Qiang to control, so that the smaller width of not less than the replacement of the width of the connecting plate 70%, also need to be given due attention in the form of node selection
Q: How are steel pipes insulated for thermal efficiency?
Steel pipes are insulated for thermal efficiency by applying a layer of insulating material, such as mineral wool or foam, around the pipe. This insulation helps to reduce heat transfer and prevent energy loss, ensuring that the pipes maintain the desired temperature and improve overall thermal efficiency.
Q: What is the bending strength of steel pipes?
Steel pipes have the ability to withstand bending forces without breaking or permanently deforming, which is known as their bending strength. This strength can vary depending on factors like the type of steel, the grade of steel, the diameter and thickness of the pipe, and the manufacturing process. Steel pipes are highly durable and strong, making them suitable for many different uses. The bending strength of steel pipes is typically measured by the maximum bending moment or stress that the pipe can handle without failing. Engineers and manufacturers determine the bending strength of steel pipes using various testing methods, such as three-point or four-point bending tests. These tests involve applying a known force or moment to the pipe and measuring its deflection or stress response. The bending strength of steel pipes can also be affected by mechanical properties like yield strength, tensile strength, and elongation. These properties determine the overall strength and ductility of the steel, which are crucial for its bending strength. It's important to note that the bending strength can vary depending on the specific application and the load conditions. For instance, pipes used in structural or load-bearing applications may require higher bending strength than pipes used for plumbing or conveyance purposes. In conclusion, the bending strength of steel pipes is determined by factors such as the type of steel, the grade of steel, the diameter and thickness of the pipe, and the manufacturing process. Testing methods and mechanical properties are used to assess the bending strength of steel pipes, ensuring they are suitable for different uses and load conditions.
Q: What are the different types of steel pipe bends?
There are several types of steel pipe bends, including long radius bends, short radius bends, and induction bends. Long radius bends have a larger radius and are used when a gentle bend is required. Short radius bends have a smaller radius and are used when a more abrupt bend is needed. Induction bends are created using a heating process to achieve specific bend angles and radii.

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