• Seamless Hot Rolled Steel Pipe 4"-12" System 1
  • Seamless Hot Rolled Steel Pipe 4"-12" System 2
  • Seamless Hot Rolled Steel Pipe 4"-12" System 3
Seamless Hot Rolled Steel Pipe 4"-12"

Seamless Hot Rolled Steel Pipe 4"-12"

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1Structure of Seamless 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 the Seamless Pipe:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3Seamless 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. Carbon seamless steel pipe

2. Standard: ASME SA106/53B, ASTM A106/53B, GB/T8162 GB/T8163, API 5L GR.B, DIN2391, JIS S20C S45C

3. Grade: A53B A106B 20# 45# 16Mn st52

4. Size: 1"-16" SCH40 SCH80 SCH160

4. Processing technique: hot rolled/cold drawn;

5. Length: 6-12m

6. Surface: painted with varnish;

7. Plastic caps at ends.

8. Tolerance: OD   +1%/-1%

                        WT  +12.5%/-10%

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Seamless 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.

 

Any question, pls feel free to contact us !

 

6‍‍Seamless Pipe ASTM A106/53 Images

 

 

Q: How are steel pipes used in the fabrication of storage tanks?
Due to their strength, durability, and versatility, steel pipes are widely employed in the construction of storage tanks. Throughout the tank fabrication process, these pipes serve various functions. To begin with, steel pipes are utilized in establishing the tank's foundation. By providing a robust base, they ensure stability and prevent potential structural problems. Moreover, steel pipes are employed in constructing the tank's shell. Through welding, these pipes are joined together to form a cylindrical structure capable of withstanding the pressure and weight of the stored material. Furthermore, steel pipes are crucial for installing inlet and outlet pipes. These pipes enable the controlled flow of materials in and out of the storage tank. Additionally, steel pipes frequently play a role in fabricating support structures within the tank. These structures distribute the weight of the stored material and offer additional reinforcement to the tank. When it comes to maintenance and repair, steel pipes are also essential. They are used to install access points such as manholes or inspection ports, facilitating routine inspections, cleaning, and any necessary repairs. In summary, steel pipes are indispensable in the fabrication of storage tanks, providing a resilient and dependable framework. They are employed in constructing the tank's foundation, shell, inlet and outlet pipes, support structures, and access points. With their durability and versatility, steel pipes ensure the integrity and functionality of storage tanks.
Q: What are the specific differences between flexible pipes and rigid pipes?
From the model:Rigid waterproof sleeve: A, B and C, A type, suitable for steel pipe, B, suitable for cast iron pipe and ductile iron pipe;Flexible waterproof bushings: A and B, A used in the internal walls of buildings, B used in the exterior walls of buildings.In use:
Q: How are steel pipes used in the construction of gas distribution networks?
Steel pipes are commonly used in the construction of gas distribution networks due to their durability, strength, and resistance to corrosion. These pipes are installed underground to transport natural gas from the source to various distribution points. They are used to create a reliable and efficient network that delivers gas safely to homes, businesses, and industries.
Q: What are the different coatings used on steel pipes?
There are several different coatings used on steel pipes, including epoxy coatings, polyethylene coatings, zinc coatings, and fusion bonded epoxy coatings. These coatings are applied to protect the steel pipes from corrosion and extend their lifespan.
Q: What are the different methods of pipe inspection for steel pipes?
There are several methods of pipe inspection that can be used for steel pipes. Some of the commonly used methods are as follows: 1. Visual Inspection: This is the most basic form of pipe inspection where a trained inspector visually examines the exterior and interior of the pipe to identify any visible defects or abnormalities. This method is often used as a preliminary inspection before more advanced techniques are employed. 2. Magnetic Particle Inspection (MPI): MPI involves applying a magnetic field to the steel pipe and then applying iron particles to the surface. Any surface cracks or defects in the pipe will cause a leakage of magnetic flux, which can be detected by the inspector. This method is particularly effective in identifying surface defects in ferromagnetic materials. 3. Ultrasonic Testing (UT): UT is a non-destructive testing method that uses high-frequency sound waves to detect internal defects or anomalies in steel pipes. A transducer is used to send ultrasonic waves into the pipe, and the reflections or echoes of the sound waves are analyzed to determine the presence of defects such as corrosion, cracks, or wall thickness variations. 4. Radiographic Testing (RT): In this method, X-rays or gamma rays are used to create an image of the internal structure of the steel pipe. The X-rays or gamma rays pass through the pipe, and the resulting image can reveal any defects, such as cracks, corrosion, or weld discontinuities. This method is commonly used for inspecting welded joints. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing technique that uses electromagnetic induction to detect surface and near-surface defects in steel pipes. A coil carrying an alternating current is passed over the pipe's surface, and any changes in the electrical conductivity or magnetic field caused by defects are detected and analyzed. 6. Acoustic Emission Testing (AET): AET is a method that detects and analyzes the high-frequency acoustic signals emitted by materials when they undergo deformation or damage. In the case of steel pipes, AET can be used to monitor and identify defects such as cracks, leaks, or corrosion by analyzing the acoustic signals emitted during service or under stress. These are just a few of the commonly used methods of pipe inspection for steel pipes. The choice of method depends on various factors such as the type of defect being looked for, the accessibility of the pipe, the desired level of sensitivity, and the cost and time constraints. It is often recommended to use a combination of inspection techniques to ensure a thorough assessment of the steel pipes.
Q: How are steel pipes used in the manufacturing of boilers and heat exchangers?
Steel pipes are an essential component in the manufacturing of boilers and heat exchangers due to their unique properties and capabilities. These pipes are specifically designed to withstand high temperatures, pressures, and corrosive environments, making them ideal for these applications. In the manufacturing process of boilers, steel pipes are used to construct the main body or shell of the boiler. This shell contains the water or steam that is heated to generate heat or produce steam for various industrial processes. The steel pipes used in boilers are typically seamless or welded, with precise dimensions and high strength to ensure structural integrity and prevent leaks. Heat exchangers, on the other hand, are devices used to transfer heat between two fluids, often with different temperatures. Steel pipes are employed in heat exchangers as the primary medium for transferring heat. The pipes are usually arranged in a pattern, allowing the hot fluid to pass through one set of pipes while the cold fluid passes through another set. This arrangement enables efficient heat transfer between the two fluids. The use of steel pipes in boilers and heat exchangers offers several advantages. Firstly, steel pipes have excellent thermal conductivity, allowing for efficient heat transfer between the fluid and the surrounding environment. Secondly, steel pipes have high tensile strength and can withstand high pressure, ensuring the safety and reliability of the equipment. Thirdly, steel pipes are resistant to corrosion, which is crucial in environments where the fluids being processed are corrosive or contain impurities. Moreover, steel pipes can be easily fabricated and customized to meet the specific requirements of boilers and heat exchangers. They can be manufactured in various sizes, lengths, and thicknesses to accommodate different applications. Additionally, steel pipes can be coated or lined with materials such as ceramic or epoxy to provide further protection against corrosion or abrasion. In summary, steel pipes play a vital role in the manufacturing of boilers and heat exchangers. Their unique properties, including high strength, thermal conductivity, and corrosion resistance, make them the ideal choice for these applications. The use of steel pipes ensures the efficient operation, safety, and longevity of boilers and heat exchangers in various industrial processes.
Q: How are steel pipes used in power plants?
Steel pipes are used in power plants for various purposes such as carrying steam, water, and other fluids, as well as transporting fuel and exhaust gases. They are also utilized in the construction of boilers, heat exchangers, and condensers, ensuring efficient and reliable operation of power generation equipment.
Q: How are steel pipes used in the construction of dams?
Steel pipes are commonly used in the construction of dams for various purposes such as water diversion, drainage, and foundation reinforcement. They are used to transport water from one area to another, diverting it away from the construction site or controlling its flow within the dam. Steel pipes are also employed for drainage systems to prevent water accumulation and to ensure the stability of the dam structure. Additionally, they play a crucial role in reinforcing the foundation of the dam, providing strength and support to the overall structure.
Q: Can steel pipes be used for underground compressed air pipelines?
Indeed, underground compressed air pipelines can utilize steel pipes. The strength and durability of steel pipes make them a popular choice for subterranean pipelines. They possess the capacity to endure high pressure and withstand corrosion and other environmental elements. Moreover, steel pipes are renowned for their extended lifespan, rendering them a dependable option for compressed air pipelines. Nevertheless, it is crucial to guarantee the adequate coating and protection of the steel pipes to avert any potential corrosion concerns. Furthermore, the proper installation and maintenance of these pipelines are vital to ensure their efficiency and safety.
Q: What are the different methods of welding steel pipes?
There are several different methods of welding steel pipes, including shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), flux-cored arc welding (FCAW), and submerged arc welding (SAW). Each method has its own advantages and is suitable for different applications and pipe sizes.

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