• 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:How to establish a concrete-filled steel tubular column model in ANSYS?
A two unit model or a composite unit model can be adoptedTwo units are constructed of steel tubes and concreteA composite unit may be either a fiber element or a section conversion attribute
Q:How does galvanization protect steel pipes from corrosion?
Galvanization protects steel pipes from corrosion by applying a protective zinc coating on the surface of the pipes. This zinc coating acts as a sacrificial anode, meaning it corrodes first before the steel, effectively preventing rust and corrosion from reaching the underlying steel.
Q:What is the role of steel pipes in HVAC systems?
Steel pipes are essential components in HVAC systems as they are used to transport hot or cold water, steam, and air throughout the system. They provide a reliable and durable conduit for the distribution of heating, ventilation, and air conditioning, ensuring efficient and effective operation of the system.
Q:How do you calculate the thermal expansion of steel pipes?
To calculate the thermal expansion of steel pipes, you need to know the coefficient of thermal expansion (CTE) of the specific type of steel used. This value represents how much the steel material expands or contracts per unit length with each degree of temperature change. Once you have the CTE, you can multiply it by the initial length of the steel pipe and the temperature change to determine the thermal expansion. The formula is: Thermal Expansion = CTE x Initial Length x Temperature Change.
Q:How can steel pipes be protected from corrosion?
There are several methods available to protect steel pipes from corrosion. One commonly used method is the application of protective coatings, which create a barrier between the steel and the corrosive elements in the environment. Epoxy is the most widely used coating for steel pipes and offers excellent corrosion resistance. Depending on the specific requirements, polyethylene and polyurethane coatings can also be used. Another effective way to prevent corrosion is through cathodic protection. This technique involves using sacrificial anodes or impressed current systems. Sacrificial anodes, typically made of zinc or aluminum, are attached to the steel pipes and corrode instead of the steel, sacrificing themselves to protect the pipes. Impressed current systems utilize a direct electrical current to counteract the corrosion process. To ensure the longevity of steel pipes, regular maintenance and inspection are crucial. It is important to monitor the condition of the coatings and address any signs of damage or deterioration promptly. Additionally, implementing proper drainage systems to prevent the accumulation of moisture around the pipes is essential for corrosion prevention. Consideration of environmental factors is also necessary when protecting steel pipes from corrosion. This involves mitigating exposure to corrosive substances like acids or chemicals and ensuring adequate ventilation and airflow to prevent moisture and humidity buildup. By implementing a combination of these protective measures, steel pipes can have an extended lifespan and maintain their structural integrity.
Q:How are steel pipes used in the manufacturing of chemical processing plants?
Steel pipes are commonly used in chemical processing plants for various purposes, such as transporting fluids and gases, as well as providing structural support. They are highly resistant to corrosion, making them ideal for handling corrosive materials in the plant. Additionally, steel pipes can withstand high temperatures and pressure, ensuring the safe and efficient operation of chemical processes.
Q:Can steel pipes be used for water distribution networks?
Yes, steel pipes can be used for water distribution networks. Steel pipes are commonly used for water distribution due to their durability, strength, and resistance to corrosion. They can efficiently handle high water pressure and are suitable for both underground and above-ground installations. However, proper protective coatings are necessary to prevent rusting and maintain water quality.
Q:How are steel pipes used in high-rise buildings?
Steel pipes are commonly used in high-rise buildings for various purposes. They are primarily used for structural support as they provide strength and durability, allowing the building to withstand the vertical loads and forces that occur due to its height. Steel pipes are also used for plumbing systems, carrying water and other fluids throughout the building. Additionally, they can be used for HVAC systems, providing ventilation and air conditioning to each floor. Overall, steel pipes are integral components in high-rise buildings, ensuring the safety, functionality, and comfort of the occupants.
Q:What is the cost of steel pipes compared to other pipe materials?
The cost of steel pipes can differ from other pipe materials depending on various factors, such as size, grade, and availability. However, steel pipes typically offer more cost-effectiveness compared to alternative materials. This is due to the widespread availability and versatility of steel, which allows for easy manufacturing and fabrication into different pipe sizes and shapes. When compared to materials like copper, stainless steel, or plastic, steel pipes are often more affordable due to their lower manufacturing costs. Furthermore, steel pipes have a longer lifespan and superior durability, making them a cost-effective choice in the long term. They exhibit resistance to corrosion, can withstand high pressure and temperature, and find applications in plumbing, construction, and infrastructure projects. It is worth mentioning that the cost of steel pipes can still fluctuate based on market conditions, demand, and location. Nevertheless, overall, steel pipes are generally considered a cost-effective option when compared to other pipe materials.
Q:Can steel pipes be used for underground stormwater drainage?
Indeed, underground stormwater drainage can utilize steel pipes. These pipes possess durability and boast a high strength-to-weight ratio, rendering them appropriate for subterranean usage. They can endure substantial burdens and fend off corrosion, thus guaranteeing sustained effectiveness within stormwater drainage systems. Furthermore, steel pipes lend themselves to easy welding, facilitating customization and flexibility during both design and installation. Nonetheless, it is imperative to implement adequate corrosion protection measures, such as the application of a protective coating or the utilization of corrosion-resistant alloys, to avert degradation over time. Regular maintenance and monitoring are also advisable to uphold the pipes' integrity and ensure optimal stormwater drainage functionality.

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