Round Seamless Steel Pipes

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: 1000 m.t./month

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Product Details:

1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. Application

Widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD +1%/-1%

WT +12.5%/-10%

Seamless Black Steel Pipes Image

Seamless Black Steel Pipes

FAQ of Seamless Pipe

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard.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?
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”.

③Why should you chose us?
Chose happens because of quality, then price, We can give you both.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 !

Q: How are steel pipes used in the manufacturing of automobiles?: Due to their strength, durability, and versatility, steel pipes find widespread use in the manufacturing of automobiles. Throughout the automobile manufacturing process, various applications make use of steel pipes. One primary application of steel pipes in automobiles lies in constructing the vehicle's chassis and body. Structural components, such as steel pipes, provide the necessary strength and rigidity. With the ability to be bent, shaped, and welded, steel pipes prove to be an ideal choice for automotive purposes. Additionally, steel pipes play a crucial role in the exhaust system of automobiles. Responsible for guiding and redirecting exhaust gases away from the engine, steel pipes form the exhaust manifold. They also contribute to the exhaust pipes and mufflers. Steel's high temperature and corrosion resistance make it suitable for enduring the harsh conditions of the exhaust system. Moreover, steel pipes serve in the cooling system of automobiles. They facilitate the transportation of coolant from the engine to the radiator and back, effectively regulating the engine's temperature. Due to their ability to handle high pressure and temperature, as well as their resistance to corrosion and chemical damage, steel pipes remain the preferred choice for this application. Furthermore, steel pipes find usage in the fuel system of automobiles. They ensure a consistent and reliable supply of fuel by transporting it from the tank to the engine. Steel pipes are selected for this purpose because of their resistance to corrosion and their ability to withstand the high pressure and temperature associated with fuel transportation. In conclusion, steel pipes are indispensable in automobile manufacturing. They contribute significantly to the construction of the chassis and body, the exhaust system, the cooling system, and the fuel system. Thanks to their strength, durability, and versatility, steel pipes are the preferred choice for various automotive applications.

Q: How are steel pipes transported and stored?: Steel pipes are typically transported using trucks, trains, or ships, depending on the distance and quantity. These pipes are often stacked and secured with straps or chains during transportation to prevent any movement or damage. When it comes to storage, steel pipes are commonly stored in outdoor yards or warehouses. They are usually organized in neat rows or stacked on racks to maximize space and facilitate easy access. Additionally, pipes may be covered with weather-resistant materials to protect them from rust or corrosion during storage.

Q: Are steel pipes suitable for use in automotive industries?: Yes, steel pipes are suitable for use in automotive industries. Steel pipes are highly durable, have excellent strength-to-weight ratio, and can withstand high pressure and temperature conditions, making them ideal for various automotive applications. They are commonly used in exhaust systems, brake lines, fuel lines, and structural components of vehicles due to their reliability and ability to withstand harsh environments.

Q: How are steel pipes used in the manufacturing of renewable energy systems?: Steel pipes are widely used in the manufacturing of renewable energy systems due to their durability, strength, and versatility. They are primarily used in the construction of wind turbines, solar panel frames, and the transmission of geothermal energy. Steel pipes provide the necessary structural support and stability required for these systems, ensuring their long-term functionality and reliability. Additionally, steel pipes are often used for transporting and distributing renewable energy sources, such as natural gas and hydrogen, further contributing to the overall efficiency and sustainability of these systems.

Q: What are the different grades of steel used for pipes?: Pipes are manufactured using various grades of steel, each possessing unique properties and applications. Some commonly utilized grades include: 1. Carbon Steel: This type of steel is widely employed in pipe manufacturing, particularly for low-pressure purposes. It contains a low carbon content, typically less than 0.30%, facilitating easy welding and forming. Carbon steel pipes are known for their durability and cost-effectiveness, making them suitable for diverse industries. 2. Stainless Steel: Stainless steel pipes are renowned for their corrosion resistance and high strength. They consist of an alloy of iron and chromium, with additional elements like nickel and molybdenum enhancing their properties. These pipes find extensive usage in industries such as chemical processing, food production, and oil and gas, where corrosion resistance is vital. 3. Alloy Steel: Alloy steel pipes are created by incorporating elements like manganese, chromium, or nickel into carbon steel. This enhances their strength, hardness, and wear resistance, rendering them appropriate for high-pressure and high-temperature applications. Industries such as power generation, petrochemical, and aerospace frequently employ alloy steel pipes. 4. Duplex Steel: Duplex steel represents a type of stainless steel that combines austenite and ferrite phases. This results in a material possessing exceptional strength, corrosion resistance, and toughness. Duplex steel pipes are commonly utilized in offshore oil and gas platforms, as well as in chemical and petrochemical industries. 5. Low-Temperature Steel: Low-temperature steel is specifically designed to withstand extremely cold temperatures without becoming brittle. These pipes find significant use in industries such as cryogenic storage, LNG transportation, and refrigeration. Choosing the appropriate grade of steel is crucial to ensure optimal pipe performance and longevity. Factors such as temperature, pressure, corrosion resistance, and cost should be taken into account when selecting the steel grade for pipes.

Q: What are the factors to consider when selecting pipe materials for corrosive environments?: When selecting pipe materials for corrosive environments, there are several important factors to consider in order to ensure the longevity and effectiveness of the piping system. 1. Corrosion Resistance: The most crucial factor to consider is the corrosion resistance of the pipe material. It is essential to choose a material that is highly resistant to corrosion, as corrosive environments can cause significant damage to pipes over time. Materials such as stainless steel, fiberglass, and certain types of plastics like PVC and CPVC are known for their excellent resistance to corrosion. 2. Chemical Compatibility: It is important to assess the chemical compatibility of the pipe material with the specific corrosive environment it will be exposed to. Different materials have different resistance levels to various chemicals, so it is crucial to ensure that the chosen material can withstand the specific chemicals present in the environment. Consulting chemical compatibility charts and seeking expert advice can help in making the right material selection. 3. Temperature and Pressure Requirements: The temperature and pressure conditions within the corrosive environment should also be considered when selecting pipe materials. Some materials may have limitations in terms of their temperature and pressure resistance, and exceeding these limits can lead to pipe failure. It is important to choose a material that can handle the required temperature and pressure ranges without compromising its structural integrity. 4. Cost: The cost of the pipe material and its installation should also be taken into account. While certain materials may be highly resistant to corrosion, they can also be more expensive. It is essential to strike a balance between the desired level of corrosion resistance and the available budget. 5. Maintenance and Durability: The maintenance requirements and overall durability of the pipe material should be evaluated as well. Some materials may require more frequent inspections, cleaning, or repairs compared to others. Considering the anticipated lifespan of the piping system and the ease of maintenance can help in selecting a material that will provide long-term reliability and cost-effectiveness. In conclusion, when selecting pipe materials for corrosive environments, one should consider factors such as corrosion resistance, chemical compatibility, temperature and pressure requirements, cost, and maintenance and durability. By carefully evaluating these factors, one can choose a pipe material that best suits the specific corrosive environment and ensures a reliable and long-lasting piping system.

Q: How are steel pipes used in the manufacturing of machinery?: Steel pipes are used in the manufacturing of machinery for various purposes such as conveying fluids, gases, or materials, as structural components, and for heat transfer. They provide durability, strength, and resistance to corrosion, making them suitable for applications where high pressure, temperature, or heavy loads are involved.

Q: Can steel pipes be used for irrigation pumps?: Yes, steel pipes can be used for irrigation pumps. Steel pipes are commonly used in irrigation systems due to their durability, strength, and resistance to corrosion. They are ideal for transporting water from the pump to the irrigation system, ensuring efficient water distribution for agricultural purposes.

Q: How to make the internal tooth of the steel pipe?: At present, in our country, 300MW or 600MW or more large capacity sub critical and supercritical thermal power boilers are designed or imported abroad. Membrane internal wall tubes are widely used in membrane water wall.

Q: Welded and seamless steel pipe how to distinguish?: Different processing technology:Seamless tubes are made of quality carbon steel or alloy steel. Processing technology of seamless pipe hot rolling and cold drawing is divided into two ways, and the tube is generally based on welded.

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