• Seamless Steel Pipes with High Quality Made in China System 1
  • Seamless Steel Pipes with High Quality Made in China System 2
  • Seamless Steel Pipes with High Quality Made in China System 3
Seamless Steel Pipes with High Quality Made in China

Seamless Steel Pipes with High Quality Made in China

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1Structure of Seamless Steel Pipes with High Quality Made in China: 

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 Seamless Steel Pipes with High Quality Made in China:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price  

 

3Seamless Steel Pipes with High Quality Made in China 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 Seamless Steel Pipes with High Quality Made in China:  

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. 

Q: How are steel pipes marked for identification and traceability?
Steel pipes are marked for identification and traceability through various methods. One common method is through the use of permanent markers or paint. These marks typically include important information such as the manufacturer's name or logo, the pipe's size and specifications, and the production date or batch number. In addition to surface marking, steel pipes may also be identified using tags or labels. These tags are usually made of durable materials such as metal or plastic and are securely attached to the pipe. They contain detailed information about the pipe, including its unique identification number, material composition, and any relevant certifications or standards it meets. Another method used for identification and traceability is the application of barcodes or QR codes. These codes can be scanned using specialized equipment or mobile applications, providing instant access to comprehensive information about the pipe's origin, production process, and quality control measures. Barcodes and QR codes offer a more efficient and automated way of tracking and tracing steel pipes throughout their lifecycle. Furthermore, some steel pipes may have embossed or engraved markings directly on their surface. These markings are typically indented into the metal and can withstand harsh conditions, ensuring long-term visibility and legibility. The goal of marking steel pipes is to ensure their proper identification and traceability throughout their lifecycle. This helps in quality control, maintenance, and inspection processes, as well as in ensuring compliance with regulatory requirements. By having clear and permanent markings, manufacturers, suppliers, and users can easily track and trace the history and specifications of steel pipes, enabling better management and accountability in various industries such as construction, oil and gas, and infrastructure development.
Q: How are steel pipes coated for aesthetic purposes?
Steel pipes can be coated for aesthetic purposes through various methods such as painting, powder coating, or using decorative finishes like chrome plating. These coatings not only enhance the appearance of the steel pipes but also provide protection against corrosion and increase their durability.
Q: Can steel pipes be used for food processing facilities?
Yes, steel pipes can be used for food processing facilities. Steel pipes are commonly used in food processing facilities due to their durability, strength, and resistance to corrosion. They are also easy to clean, which is essential in maintaining proper hygiene standards in food processing environments. Additionally, steel pipes can withstand high temperatures and pressure, making them suitable for various food processing applications such as conveying liquids, gases, and solids. However, it is important to ensure that the steel pipes used in food processing facilities are made from materials that are approved for contact with food, and that they are regularly inspected and maintained to prevent any contamination risks.
Q: How are steel pipes used in the wastewater treatment industry?
Steel pipes are commonly used in the wastewater treatment industry for various applications such as transporting wastewater, distributing chemicals, and constructing infrastructure such as treatment plants and pumping stations. The durability, strength, and corrosion resistance of steel pipes make them ideal for handling the harsh and corrosive nature of wastewater, ensuring efficient and reliable operations in the industry.
Q: How are steel pipes used in the renewable energy sector?
Steel pipes are commonly used in the renewable energy sector for various purposes, primarily in the construction and installation of infrastructure for wind and solar energy projects. Steel pipes are used to support and anchor wind turbine towers, as well as to transport compressed air or hydraulic fluid for the operation of wind turbines. They are also utilized in the construction of solar panel frameworks, providing stability and durability. Additionally, steel pipes are used in geothermal energy projects for the extraction and transportation of hot water or steam from underground sources to power plants. Overall, steel pipes play a crucial role in enabling the efficient and reliable operation of renewable energy systems.
Q: What are the different types of steel pipe coatings for drinking water pipelines?
There are several types of steel pipe coatings used for drinking water pipelines, including fusion bonded epoxy (FBE), polyurethane (PU), and polyethylene (PE). These coatings provide corrosion protection, prevent leaching of contaminants into the water, and ensure the durability of the pipes.
Q: What industries typically use steel pipes?
Industries such as construction, oil and gas, water treatment, automotive, and manufacturing typically use steel pipes.
Q: Are steel pipes suitable for high-pressure applications?
Yes, steel pipes are suitable for high-pressure applications. Steel pipes are known for their strength and durability, making them ideal for handling high-pressure applications. They can withstand the internal pressure exerted by fluids or gases under high pressure without deforming or bursting. The high tensile strength of steel allows it to resist the forces that occur in high-pressure environments, ensuring the safety and reliability of the piping system. Additionally, steel pipes can be manufactured with thicker walls to further enhance their ability to withstand high pressures. Steel pipes are widely used in industries such as oil and gas, petrochemical, power generation, and water distribution, where high-pressure applications are common.
Q: How are steel pipes protected from damage during transportation?
Steel pipes are protected from damage during transportation through various methods. One common method is the use of protective coatings. Steel pipes are often coated with materials such as epoxy, zinc, or polyethylene to create a barrier between the pipe and external elements. These coatings help to prevent corrosion and damage during transit. Furthermore, steel pipes are often bundled together and secured using straps or bands. This bundling helps to keep the pipes in place and prevents them from shifting or rolling during transportation. Additionally, padding or cushioning materials such as foam or rubber may be used to provide extra protection and minimize the risk of damage from impact or vibration. In some cases, steel pipes may be placed in crates or containers to provide additional protection. Crates are designed to fit the pipes snugly and provide a secure enclosure that prevents external forces from causing damage. Containers, on the other hand, offer a protective environment for the pipes, shielding them from the elements and potential impacts. To ensure the safe transportation of steel pipes, it is also important to consider proper handling and loading techniques. Pipes should be carefully lifted and loaded onto transport vehicles using appropriate equipment, such as cranes or forklifts, to minimize the risk of damage. Proper securing of the pipes within the transport vehicle is crucial to prevent movement and potential damage during transit. Overall, a combination of protective coatings, bundling, padding, and secure packaging or loading techniques are employed to safeguard steel pipes from damage during transportation. These measures help to ensure that the pipes arrive at their destination in optimal condition, ready for use in various applications.
Q: How do you calculate the pipe friction loss coefficient for steel pipes?
To calculate the pipe friction loss coefficient for steel pipes, you need to consider several factors. One of the most common methods used is the Darcy-Weisbach equation, which relates the frictional head loss in a pipe to the flow rate, pipe diameter, pipe length, fluid properties, and the pipe roughness coefficient. The Darcy-Weisbach equation is expressed as: hf = (f * L * V^2) / (2 * g * D) Where: hf is the head loss due to friction, f is the pipe friction factor, L is the pipe length, V is the fluid velocity, g is the acceleration due to gravity, and D is the pipe diameter. The pipe friction factor, f, is the key parameter that needs to be determined. For steel pipes, this factor depends on the pipe roughness coefficient, which represents the relative roughness of the pipe. The relative roughness is calculated by dividing the absolute roughness of the pipe surface by the pipe diameter. The pipe roughness coefficient can be obtained from various sources, such as manufacturer specifications, engineering handbooks, or experimental data. It is important to ensure that the roughness coefficient used matches the specific type and condition of the steel pipe being analyzed. Once you have the pipe roughness coefficient, you can use it to calculate the pipe friction factor using empirical correlations or charts. These correlations often involve Reynolds number, which is a dimensionless quantity that characterizes the flow regime. By substituting the obtained pipe friction factor into the Darcy-Weisbach equation, you can calculate the head loss due to friction for steel pipes. This value is essential in designing piping systems, determining pump requirements, or estimating energy consumption in fluid flow applications.

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