• Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application System 1
  • Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application System 2
  • Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application System 3
Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
12000 m.t./month

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 1、Structure of Carbon Seamless Steel  Pipe API 5L of 4 Inch

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.

 

Standard: GB3087: Seamless Steel Tubes for Low and Medium Pressure Boiler

 

2‍‍Main Features of the Seamless Pipe API 5L of 4 Inch

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3Seamless Pipe API 5L of 4 Inch 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

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Seamless Pipe API 5L of 4 Inch:  

①How 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.

②How 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.

③Why 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 Pipe API 5L of 4 Inch Images ‍‍

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

 

Q: What is the difference between internal and external coating for steel pipes?
Internal coating for steel pipes refers to the application of a protective layer on the inner surface of the pipe. This coating is primarily used to prevent corrosion and to enhance the pipe's resistance to various chemicals present in the fluid being transported. The internal coating is typically applied using techniques such as spraying, brushing, or dipping, and it can be made of various materials such as epoxy, polyurethane, or cement mortar. On the other hand, external coating for steel pipes involves the application of a protective layer on the outer surface of the pipe. The purpose of this coating is to provide protection against environmental factors such as corrosion, abrasion, and impact. External coatings are usually applied using methods like wrapping or coating with materials like polyethylene, fusion-bonded epoxy, or asphalt enamel. In summary, the main difference between internal and external coating for steel pipes lies in their location and purpose. Internal coatings protect the inner surface of the pipe against corrosion and chemical attacks, while external coatings safeguard the outer surface from environmental damage. Both types of coatings are crucial for ensuring the longevity and reliability of steel pipes in various applications.
Q: How are steel pipes used in the manufacturing of shipbuilding and offshore structures?
Steel pipes are essential components in the manufacturing of shipbuilding and offshore structures. They are widely used due to their strength, durability, and resistance to corrosion, making them ideal for the harsh marine environment. In shipbuilding, steel pipes are used for various purposes. One of the main applications is in the construction of the hull, the framework that provides structural support to the ship. Steel pipes are used to form the keel and the frames, which help to maintain the shape and strength of the hull. These pipes are welded together to create a robust and rigid structure that can withstand the forces exerted on the ship during navigation. Moreover, steel pipes are used in the construction of various systems onboard the ship. For instance, they are utilized in the piping system for transporting fluids like fuel, water, and oil throughout the vessel. Steel pipes are also employed in the ventilation and air conditioning systems, ensuring proper airflow and temperature control within the ship. In offshore structures, such as oil rigs and platforms, steel pipes play a crucial role. These structures are typically subjected to extreme environmental conditions, including severe weather, high pressure, and corrosive saltwater. Steel pipes are used to fabricate the legs, risers, and other load-bearing components of offshore structures. These pipes provide the necessary strength and stability, allowing the structure to withstand the forces exerted by waves, wind, and drilling operations. Additionally, steel pipes are utilized in the construction of subsea pipelines. These pipelines are used to transport oil, gas, and other fluids from offshore drilling sites to onshore facilities. Steel pipes are preferred due to their high tensile strength and ability to withstand the high pressure and corrosive conditions found in subsea environments. Overall, steel pipes are indispensable in the manufacturing of shipbuilding and offshore structures. Their exceptional strength, durability, and corrosion resistance make them the preferred choice for constructing hulls, systems, and load-bearing components. Without steel pipes, the construction of ships and offshore structures would be significantly compromised in terms of safety, reliability, and longevity.
Q: How are steel pipes used in the manufacturing industry?
Steel pipes are used in the manufacturing industry for a wide range of applications, including the transportation of fluids and gases, structural support in buildings and infrastructure, and as a material for heat exchangers and boilers. They are also utilized in the production of various machinery and equipment, such as conveyors, cranes, and industrial piping systems. Overall, steel pipes play a crucial role in ensuring efficient and reliable operations across numerous manufacturing processes.
Q: How are steel pipes cleaned and maintained?
Steel pipes are cleaned and maintained through various methods. The process typically involves removing any debris or rust from the pipes using wire brushes or sandblasting. After cleaning, a protective coating is applied to prevent corrosion. Regular inspections and maintenance checks are also conducted to identify any potential issues such as leaks or weak points, ensuring the pipes remain in optimal condition.
Q: Can steel pipes be used for shipbuilding?
Yes, steel pipes can be used for shipbuilding. Steel is a commonly used material in the construction of ships due to its strength, durability, and resistance to corrosion. Steel pipes are used for various purposes in shipbuilding, including the construction of the ship's hull, superstructure, and various internal systems such as plumbing, ventilation, and fuel lines. The strength and structural integrity of steel pipes make them suitable for withstanding the harsh conditions at sea, such as high pressures, extreme temperatures, and exposure to saltwater. Additionally, steel pipes can be easily welded and shaped to meet the specific requirements of shipbuilding, making them a versatile choice for this industry.
Q: Can steel pipes be used for wastewater treatment systems?
Yes, steel pipes can be used for wastewater treatment systems. Steel pipes are commonly used in wastewater treatment systems due to their durability, strength, and resistance to corrosion. They are able to withstand the harsh conditions and chemicals present in wastewater treatment processes, making them a reliable choice for transporting and distributing wastewater within the system.
Q: How can galvanized steel tubes be painted on the surface?
Galvanized parts are nonferrous metals, ferrous metals are black, all metal adhesion is poor;
Q: Can steel pipes be coated for aesthetic purposes?
Indeed, steel pipes have the potential to be coated solely for aesthetic reasons. By applying coatings to steel pipes, not only can one achieve an attractive appearance, but also safeguard them against corrosion and other environmental influences. Numerous coating choices are at one's disposal when it comes to steel pipes, including powder coating, epoxy coating, and vinyl coating, among others. These coatings can be employed in various colors and textures to enrich the pipes' visual appeal and harmonize with their surroundings. Whether utilized in industrial settings, architectural endeavors, or for decorative purposes, the act of coating steel pipes has the power to metamorphose them into visually captivating components, all while preserving their structural integrity.
Q: Can steel pipes be used in marine environments?
Indeed, the usage of steel pipes is viable in marine environments. Steel, being a robust and sturdy material, possesses the capability to endure the severe conditions prevalent in marine surroundings, encompassing saltwater exposure, wave impacts, and corrosion. Nevertheless, it is imperative to meticulously choose the appropriate steel variant and implement suitable protective measures to avert corrosion. Stainless steel and corrosion-resistant alloys are often employed in marine applications due to their exceptional resistance against corrosion and ability to withstand continuous saltwater exposure. Furthermore, the application of coatings such as epoxy or zinc can be an effective means of fortifying steel pipes against corrosion. Consistent maintenance and inspections are also pivotal in ensuring the durability and functionality of steel pipes in marine settings.
Q: Where is the difference between seamless steel pipe and welded pipe?
Seamless steel tube is formed during rolling. Welded steel pipes need to be welded after coiling, and spiral welding and direct welding are generally used. Seamless performance is better, of course, the price is higher.

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