• Round Steel Pipes with Good Quality Q195-Q345 System 1
  • Round Steel Pipes with Good Quality Q195-Q345 System 2
  • Round Steel Pipes with Good Quality Q195-Q345 System 3
Round Steel Pipes with Good Quality Q195-Q345

Round Steel Pipes with Good Quality Q195-Q345

Ref Price:
get latest price
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 Round 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 Round Pipe:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price  

 

3Round 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. 

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Round 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.

 

6‍‍Round Pipe Images ‍‍

 

 

Q:What are the different international standards for steel pipes?
There are several different international standards for steel pipes, including the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and the European Committee for Standardization (CEN). These standards define specific requirements for the manufacturing, testing, and dimensions of steel pipes to ensure their quality and compatibility for various applications.
Q:How are steel pipes connected together?
Steel pipes are typically connected together through various methods such as welding, threading, and flanging. Welding involves fusing the ends of pipes together using high heat, creating a strong and permanent connection. Threading involves screwing the ends of pipes together using threads, while flanging involves connecting pipes by flaring or bending their ends and securing them with bolts. These methods ensure a secure and reliable connection between steel pipes.
Q:Can steel pipes be used in marine environments?
Yes, steel pipes can be used in marine environments. Steel is a durable and strong material that can withstand the harsh conditions of the marine environment, including exposure to saltwater, waves, and corrosion. However, it is important to select the correct type of steel and apply suitable protective measures to prevent corrosion. Stainless steel and corrosion-resistant alloys are commonly used in marine applications as they have a high resistance to corrosion and can handle the constant exposure to saltwater. Additionally, coatings such as epoxy or zinc can be applied to further protect steel pipes from corrosion. Regular maintenance and inspections are also crucial to ensure the longevity and performance of steel pipes in marine environments.
Q:How are steel pipes used in transportation?
Steel pipes are commonly used in transportation for various purposes, such as in the construction of pipelines for transporting oil, gas, and water. They are also utilized in manufacturing vehicles, ships, and airplanes, where they serve as structural components or exhaust systems. Additionally, steel pipes are employed in the transportation of goods through conveyor systems and in the construction of railings and barriers for safety on roads and bridges.
Q:How are steel pipes used in the construction of power transmission lines?
Steel pipes are commonly used in the construction of power transmission lines due to their exceptional strength, durability, and versatility. These pipes serve various purposes throughout the project, contributing to the overall efficiency and reliability of the power transmission system. One primary application of steel pipes in power transmission line construction is for the installation of transmission towers. These pipes are used as structural components to support the transmission lines and maintain their alignment. The high strength of steel ensures that the towers can withstand the weight of the transmission lines, as well as external forces such as wind and ice loads. Moreover, steel pipes offer excellent resistance against corrosion, which is crucial for the longevity of the transmission tower structures. In addition to tower construction, steel pipes are also utilized for the underground transmission lines. These pipes act as conduits for the cables, protecting them from external elements and potential damage. Steel pipes are particularly advantageous in this application due to their ability to resist soil movement, withstand high pressure, and provide a secure pathway for the power cables. Furthermore, the durability of steel ensures the integrity and longevity of the underground transmission lines, reducing maintenance requirements and enhancing the overall reliability of the power transmission system. Furthermore, steel pipes are used for the construction of foundations and anchors for transmission towers. These pipes are driven deep into the ground to provide stability and support to the towers. The inherent strength and rigidity of steel pipes make them ideal for this purpose, as they can withstand the heavy loads and ensure the stability of the transmission towers even in adverse weather conditions. Overall, steel pipes play a crucial role in the construction of power transmission lines by providing structural support, protecting cables, and ensuring the overall reliability and efficiency of the transmission system. Their exceptional strength, durability, and resistance to corrosion make steel pipes an ideal choice for power transmission line construction projects.
Q:What is the role of steel pipes in the aerospace industry?
Steel pipes in the aerospace industry serve various critical roles, primarily in the construction of aircraft structures and engines. They are commonly used for fuel and hydraulic systems, as well as for carrying pressurized air and gases. Steel pipes provide strength, durability, and resistance to high temperatures and pressure, ensuring the safety and reliability of aerospace components. Additionally, they contribute to fuel efficiency by reducing weight and minimizing fuel leakage.
Q:Can steel pipes be bent or curved?
Yes, steel pipes can be bent or curved using specialized machinery and techniques such as cold bending, induction bending, or hot bending.
Q:What is the purpose of pipe flanges in steel pipes?
The purpose of pipe flanges in steel pipes is to provide a connection point between two pipe sections, allowing for easy assembly, disassembly, and maintenance of the pipeline. Flanges also help to create a leak-proof seal, enhance the strength and stability of the joint, and provide flexibility for expansion and contraction of the pipes.
Q:How are steel pipes insulated to prevent heat loss?
Steel pipes are typically insulated using materials such as fiberglass, foam, or mineral wool. These insulation materials are wrapped around the pipes and securely held in place with tapes or clamps. This insulation layer acts as a barrier, reducing heat transfer and preventing heat loss from the steel pipes.
Q:What is the thermal expansion coefficient of steel pipes?
The thermal expansion coefficient of steel pipes varies based on the particular steel type and the temperature range in which the expansion is measured. On average, the thermal expansion coefficient of steel pipes is between 10-14 x 10^-6 per degree Celsius (10-14 μm/m°C). Thus, for each degree Celsius rise in temperature, the length of a steel pipe will roughly increase by 10-14 μm per meter. It is vital to acknowledge that this value is an average and may slightly differ based on the specific composition and treatment of the steel employed in the pipe.

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