• Multi material seamless steel pipe for conveying petroleum System 1
  • Multi material seamless steel pipe for conveying petroleum System 2
Multi material seamless steel pipe for conveying petroleum

Multi material seamless steel pipe for conveying petroleum

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
60 m.t.
Supply Capability:
20000 m.t./month

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1Structure of seamless steel pipe for conveying petroleum  

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.

 

2、‍‍Main Features of seamless steel pipe for conveying petroleum :

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3、seamless steel pipe for conveying petroleum 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

 

5、FAQ of seamless steel pipe for conveying petroleum :  

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.

 

6‍‍seamless steel pipe for conveying petroleum Images ‍‍

 

 

Q: How are steel pipes threaded for easy installation?
The process of threading steel pipes enables convenient installation by creating grooves or ridges in the pipe, forming a spiral pattern that facilitates connection with other threaded components like fittings or valves. There are two commonly employed methods for threading steel pipes: manual threading and machine threading. Manual threading involves the utilization of a handheld tool called a pipe die. This die, equipped with sharp teeth, cuts into the pipe while it is rotated. The pipe is secured in a vise or held firmly by hand, and the die is applied to the pipe's end. As the die rotates around the pipe, threaded grooves are formed. Executing this process necessitates skill and precision to ensure accurate and properly aligned threads. In contrast, machine threading is a more automated procedure. It utilizes a pipe threading machine, which possesses a die head that automatically cuts the threads into the pipe. The machine holds the pipe securely and rotates it while the die head moves along the pipe's length, creating the threads. Machine threading is faster and more efficient than manual threading, making it ideal for large-scale production or projects. Regardless of the chosen method, it is imperative to ensure that the threads are clean and devoid of debris or burrs. This is crucial for effortless installation and to prevent leaks or other complications. Following threading, the pipes are generally inspected to ensure compliance with the required specifications. Threading steel pipes allows for uncomplicated installation as the threaded ends can be readily screwed into fittings, valves, or other pipes possessing compatible threads. This threaded connection creates a tight seal, rendering it suitable for various applications such as plumbing, gas lines, or industrial piping systems.
Q: How do you select the right size of steel pipe for a project?
To select the right size of steel pipe for a project, it is important to consider factors such as the desired flow rate, pressure requirements, fluid type, and the overall structural design. Consulting relevant design codes and standards, performing calculations based on these parameters, and seeking expert advice can help ensure the appropriate size is chosen to meet the project's specific needs.
Q: What are the different methods of protecting steel pipes from external damage?
There are several methods of protecting steel pipes from external damage, including coating the pipes with a corrosion-resistant material such as epoxy or polyethylene, applying a layer of protective tape, installing a cathodic protection system, using concrete or rock shielding, and implementing measures to prevent soil movement or impact damage.
Q: What does "DN25 PN16" mean?
PN said the pressure is, PN16 is the pipe can withstand 16MPa general meaning, namely, an 16 kg.
Q: How are steel pipes used in the automotive exhaust systems?
Steel pipes are commonly used in automotive exhaust systems because steel is a durable and heat-resistant material. Steel pipes are used to transport the exhaust gases from the engine to the muffler and tailpipe, ensuring that the gases are safely and efficiently expelled from the vehicle. These pipes are designed to withstand high temperatures, corrosion, and vibration, making them an essential component in the exhaust system.
Q: What are the different types of coatings used for steel pipes?
There are several types of coatings used for steel pipes, including epoxy coatings, polyethylene coatings, fusion bonded epoxy coatings, and zinc coatings. Each type of coating offers different benefits and is used for specific applications to protect the steel pipes from corrosion and improve their durability.
Q: What are the different types of pipe connections used with steel pipes?
Steel pipes are commonly connected using various types of pipe connections. The most frequently used connections are as follows: 1. Threaded connections: These connections involve screwing the ends of the pipe and using fittings with threads to connect them. They are typically used for smaller pipes and are easy to install and remove. 2. Welded connections: Welding is a popular method for joining steel pipes. This involves melting the metal and fusing the ends of the pipes together. Welded connections are strong and durable, making them suitable for high-pressure applications. 3. Flanged connections: Flanges are used to connect pipes by bolting them together. These connections are commonly used in industrial settings and are preferred for larger pipes or when easy disassembly is required for maintenance. 4. Grooved connections: Grooved fittings with internal grooves are used to connect pipes. These connections are commonly found in fire protection systems and are quick and straightforward to install. 5. Compression connections: Compression fittings are used to connect steel pipes by compressing a ferrule onto the pipe. This type of connection is frequently used in plumbing and provides a secure and tight seal. 6. Mechanical connections: Mechanical connections, such as couplings or clamps, allow for pipe connection without welding or threading. These connections are often used for temporary or emergency repairs. Each type of pipe connection has its own advantages and disadvantages. The choice of connection method depends on factors such as the application, pipe size, and installation requirements. It is crucial to carefully consider these factors to ensure a reliable and secure connection for steel pipes.
Q: What are the common methods for joining steel pipes?
There are several common methods for joining steel pipes, depending on the specific application and requirements. Some of the most commonly used methods include: 1. Welding: This is one of the most common methods of joining steel pipes. It involves heating the ends of the pipes and applying pressure to fuse them together. Welding can be done using various techniques such as arc welding, MIG welding, TIG welding, or even laser welding. 2. Threaded connections: In this method, the ends of the steel pipes are threaded to create a male and female connection. These threaded ends are then screwed together using pipe threads. Threaded connections are commonly used for smaller diameter pipes and in low-pressure applications. 3. Flanged connections: Flanges are used to join steel pipes in applications that require easy assembly and disassembly or when frequent maintenance is needed. Flanges are flat, circular discs with bolt holes that allow the pipes to be bolted together. The flanges provide a strong and leak-proof connection. 4. Compression fittings: Compression fittings are used to join steel pipes without the need for welding or threading. They consist of a compression nut, a compression ring, and a compression sleeve. The nut is tightened onto the sleeve, compressing it against the pipe, creating a secure connection. 5. Grooved couplings: Grooved couplings are used to join steel pipes by creating a mechanical connection. The pipe ends are grooved, and a gasket is placed between the grooves. The couplings are then tightened, compressing the gasket and creating a tight seal. 6. Soldering or brazing: These methods involve using a filler metal that has a lower melting point than the steel pipes. The filler metal is heated and melted, allowing it to flow between the pipe joints, creating a bond. Soldering is typically used for smaller diameter pipes and low-pressure applications. Each joining method has its advantages and limitations, and the choice of method depends on factors such as the pipe diameter, the application, the working pressure, and the required durability of the joint. It is important to consider these factors and consult industry standards and guidelines when selecting the appropriate method for joining steel pipes.
Q: How are steel pipes protected against corrosion?
Steel pipes are protected against corrosion through various methods such as coating them with protective materials like paint or epoxy, galvanizing them with a zinc coating, or using cathodic protection techniques such as sacrificial anodes or impressed current systems.
Q: What are the different methods of joining steel pipes without welding?
There are several methods of joining steel pipes without welding, including: 1. Mechanical Couplings: These couplings consist of two separate pieces that are attached to the ends of the pipes and then tightened together. They provide a secure and leak-proof connection without the need for welding. 2. Threaded Connections: In this method, the ends of the steel pipes are threaded to create a male and female connection. The pipes are then screwed together using pipe threads, providing a strong and reliable joint. 3. Flanged Connections: Flanges are used to connect steel pipes by bolting them together. The flanges have a flat surface with holes that align with corresponding holes in the opposite flange. Bolts are then inserted and tightened to create a tight seal. 4. Grooved Connections: This method involves grooving the ends of the steel pipes and then using grooved couplings to join them. The couplings have teeth that interlock with the grooves, creating a secure and rigid connection. 5. Compression Fittings: Compression fittings are used to join steel pipes by compressing a metal or plastic ring onto the pipe's outer surface. This creates a tight seal and a reliable connection, without the need for welding. 6. Adhesive Bonding: Special adhesives designed for metal bonding can be used to join steel pipes. The adhesive is applied to the surfaces of the pipes, which are then pressed together and left to cure, creating a strong and durable bond. 7. Clamping: Clamps can be used to hold steel pipes together, creating a temporary connection. This method is commonly used for testing purposes or in situations where the pipes need to be easily disassembled. Each of these methods has its own advantages and limitations, and the choice depends on factors such as the specific application, pipe material, and the required strength of the joint.

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