Round Seamless Steel pipes

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 25-35 m.t.

Supply Capability:: 3000吨 m.t./month

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Product Description

1. Commodity Name: Carbon 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:

Carbon seamless steel pipes are 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.

Packaging & Delivery

Packaging Details:	seaworthy package,bundles wrapped with strong steel strip
Delivery Detail:	15-30days after received 30%TT

Seamless Steel Tubes Image

Round Seamless Steel pipes

FAQ of Seamless Tube

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

②How about price?
Yes, we are factory and be able to give you lowest price below market one,we quote as lowest as possible for any customer, and discount can be given according to quantity”.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.SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Q: Who knows what is the difference between double submerged arc welded pipe and longitudinal submerged arc welding?: Double submerged arc welding should be for spot welding and single side welding, they are straight line welds, but double submerged arc welding seam is more beautiful and fine.

Q: What are the advantages of using pre-fabricated steel pipes?: Using pre-fabricated steel pipes in various applications has several advantages. Firstly, these pipes offer a high level of durability and strength due to the robustness and resistance of steel to external forces. This makes them ideal for withstanding high pressure or heavy loads, resulting in a longer lifespan compared to other materials and reducing the need for frequent replacements and maintenance. Secondly, pre-fabricated steel pipes provide excellent corrosion resistance by being coated with protective layers like galvanization or epoxy, preventing rusting and corrosion. This is especially important in industries or environments where the pipes may come into contact with moisture, chemicals, or other corrosive substances. By utilizing pre-fabricated steel pipes, the risk of leaks, deterioration, or failure due to corrosion is significantly reduced. Another advantage of these pipes is their versatility and ease of installation. They are manufactured to precise specifications before being delivered to the site, allowing for quick and efficient installation. Their modular nature enables easy assembly, disassembly, and reconfiguration, making them suitable for a wide range of applications. Additionally, pre-fabricated steel pipes can be seamlessly integrated with other building components, reducing installation time and costs. Furthermore, pre-fabricated steel pipes are more environmentally friendly compared to other materials. Steel is highly recyclable, and using pre-fabricated pipes reduces the consumption of natural resources and energy required for production. The long lifespan of steel pipes also reduces waste generation and the need for frequent replacements, contributing to sustainability efforts. Lastly, pre-fabricated steel pipes offer cost advantages. Although the initial cost may be higher than some other materials, their durability and low maintenance requirements result in long-term cost savings. The reduced need for repairs, replacements, and maintenance, along with the ease of installation, lead to lower overall project costs and reduced downtime. In summary, the advantages of pre-fabricated steel pipes include durability, corrosion resistance, versatility, ease of installation, environmental friendliness, and cost-effectiveness. These benefits make them the preferred choice for various industries and applications.

Q: How are steel pipes coated for protection against external elements?: Steel pipes are coated for protection against external elements through various methods, such as hot-dip galvanizing, epoxy coating, or fusion-bonded epoxy coating. These coatings provide a barrier between the steel and the environment, preventing corrosion and extending the lifespan of the pipes.

Q: What are the different coating materials used for steel pipes?: There are several different coating materials used for steel pipes, including epoxy, polyurethane, coal tar enamel, and zinc. These coatings are applied to the steel pipes to provide protection against corrosion and to enhance their durability and lifespan.

Q: Are steel pipes suitable for semiconductor manufacturing plants?: Yes, steel pipes are suitable for semiconductor manufacturing plants. Steel pipes are known for their durability, strength, and resistance to corrosion, making them an excellent choice for various industrial applications, including semiconductor manufacturing. In semiconductor manufacturing plants, various chemicals and gases are used throughout the production process. Steel pipes are highly resistant to corrosion and can withstand the harsh chemicals and gases commonly found in semiconductor manufacturing environments, ensuring the integrity and longevity of the piping system. Furthermore, steel pipes can handle high-pressure applications, which are often required in semiconductor manufacturing plants. They have excellent mechanical properties and can withstand heavy loads and stress, making them reliable for transporting fluids and gases at high pressures. Another advantage of steel pipes is their flexibility in terms of size and shape. Semiconductor manufacturing plants often require a complex and intricate piping system to accommodate different processes and equipment. Steel pipes can be easily customized and fabricated to fit specific requirements, allowing for efficient and seamless integration into the plant's infrastructure. Overall, steel pipes offer the necessary qualities and characteristics required for semiconductor manufacturing plants. Their durability, corrosion resistance, high-pressure capabilities, and flexibility make them a suitable choice for transporting chemicals and gases in this industry.

Q: What is a valve and how is it used in steel pipes?: A valve is a device used to control the flow of fluid or gas within a system. In steel pipes, valves are used to regulate and control the flow of liquids or gases by opening, closing, or partially obstructing the passage within the pipe. They are essential for redirecting or stopping the flow, ensuring the safe and efficient operation of the steel pipe system.

Q: What steel pipes are buried for outdoor heating pipes? Seamless or welded tube? Are there any rules for specific countries? Can use the seamed tube?: Where outdoor heating pipes are buried, what steel pipe shall be referenced by the 11.1.2 code for installation of outdoor piping?:This chapter applies to the quality inspection and acceptance of the outdoor heating pipe network installation of the plant and the civil building group (residential area) with the saturation steam pressure not greater than 0.7MPa, and the hot water temperature not exceeding 130 degrees celsius.

Q: Can steel pipes be used for conveying gases?: Indeed, gases can be conveyed using steel pipes. In different industries, such as oil and gas, petrochemical, and construction, steel pipes are commonly employed to transport a wide range of gases, including natural gas, air, and hydrogen. The use of steel pipes for gas transportation offers numerous benefits. They possess exceptional strength and durability, enabling them to withstand rigorous pressure and temperature conditions. Moreover, steel pipes exhibit remarkable resistance to corrosion, effectively preventing gas leakage and ensuring the safety and dependability of the gas transportation system. Furthermore, their smooth internal surface minimizes frictional resistance, facilitating efficient gas flow. As a result, steel pipes are a reliable and extensively-utilized choice for conveying gases across diverse applications.

Q: What are the common methods for inspecting the integrity of steel pipes?: There are several common methods used to inspect the integrity of steel pipes. These methods are crucial to identify any defects or weaknesses in the pipes that could compromise their structural integrity and potentially lead to failures or leaks. 1. Visual Inspection: This is a basic method where an inspector visually examines the external surface of the steel pipe for any signs of damage, such as corrosion, cracks, or deformities. It is a quick and cost-effective method, but it may not detect internal defects. 2. Ultrasonic Testing (UT): UT is a non-destructive testing method that uses high-frequency sound waves to detect flaws in steel pipes. A transducer sends ultrasonic waves into the pipe, and any reflected waves are analyzed to identify defects like cracks or voids. UT is effective for both internal and external inspections and can provide accurate measurements of defect size and location. 3. Magnetic Particle Inspection (MPI): This method is mainly used to detect surface or near-surface defects in ferromagnetic materials like steel. Magnetic particles are applied to the surface of the pipe, and if there is a defect, the particles will gather around it, creating a visible indication. MPI is particularly useful for detecting cracks and other discontinuities that may not be easily visible to the naked eye. 4. Radiographic Testing (RT): RT involves the use of X-rays or gamma rays to inspect the internal structure of steel pipes. The rays pass through the material, and a radiographic film or a digital detector records the image. This method is effective in detecting internal defects such as cracks, voids, or inclusions. However, it requires proper safety precautions due to the use of radiation. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing method that uses electromagnetic induction to assess the integrity of steel pipes. An alternating current is passed through a probe, creating an electromagnetic field. Any changes in the electrical conductivity or magnetic permeability of the material due to defects are detected by the probe, providing information about the pipe's condition. These are some of the common methods used for inspecting the integrity of steel pipes. Each method has its advantages and limitations, and the choice of inspection method depends on factors such as the type of defect to be detected, access to the pipe, and budget constraints. Regular inspection and maintenance using these methods are crucial to ensure the safe and reliable operation of steel pipe systems.