• Seamless Round Steel Pipe System 1
  • Seamless Round Steel Pipe System 2
  • Seamless Round Steel Pipe System 3
Seamless Round Steel Pipe

Seamless Round Steel Pipe

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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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Alloy Seamless Steel Pipe

1)OD:8-450mm 

2)Thickness:1-60mm 

3)MOQ: 25 tons

4)Material:A213 A335 A199, etc.


Alloy Seamless Steel Usage 

Widly used in the general structure, mechanical structure with seamless steel tubes

  

Alloy Seamless Steel Pipe Grade 

  • ASTM A519 1010-1045, 4130-4142, 5135

  • JIS G3441 SCM 415 TK, SCM 418 TK, SCM 420 TK, SCM 430 TK, SCM 435 TK, SCM 440 TK

  • JIS G3444 STKM 11A, STKM 12, STKM 13, STKM 14, STKM 15, STKM 16, STKM 17, STKM 18

  • STKM 19, STKM 20

  • BS 6323 CFS 3, CFS 3Aa, CFS 4, CFS 5b, CFS 6, CFS 7, CFS 8d, CFS 9, CFS 10, CFS 11

 

Alloy Seamless Steel Pipe Size

  • Outer Diameter Hot finish 2" - 30", Cold drawn 0.875" - 18"

  • Wall Thickness Hot finish 0.250" – 4.00", Cold drawn 0.035" – 0.875"

  • Length Random Length, Fixed Length, SRL, DRL


 Alloy Seamless Steel Pipe Heat treatment

  • Annealed, Full Annealed, Bright annealed, , Spheroidize annealed

  • Normalized, Stress relieved, Cold finished, Quenched and Tempered

  

Alloy Seamless Steel Pipe Packing 

     Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips

 

Alloy Seamless Steel Pipe Test 

      Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield

strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection Mill Test Certificate EN 10204/31B

 

Alloy Seamless Steel Pipe Image

 

 

FAQ of Seamless Pipe

How 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.

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.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.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: What is the production process of seamless steel tube?
Main production process of cold rolled (drawn) seamless steel tube:Blank preparation, pickling, lubrication, cold rolling (drawing), heat treatment, straightening, finishing and inspectionThe production process of seamless steel tube in general can be divided into two kinds of hot rolling and cold drawing, cold-rolled seamless steel pipe production process than hot-rolled billet to complex, first to three roller rolling and extrusion to sizing test, if the tube through the cutting machine cutting surface without crack growth response after cutting blank about one meter. Then enter the annealing process, annealing and pickling to use acid pickling liquid, should pay attention to the surface if there are a lot of bubbling, if there are a large number of bubbling pipe shows that the quality is not up to the standard. The appearance of cold rolling seamless steel tube shorter than hot-rolled seamless steel pipe, cold rolled seamless steel pipe wall thickness is generally higher than hot-rolled seamless steel pipe to be small, but the surface looks better than thick wall seamless steel pipe is more bright, rough surface is not too much, not too much burr diameter.
Q: How are steel pipes threaded?
Threading, a process that involves creating screw-like grooves on the outer surface of steel pipes, enables their connection to other pipes or fittings using threaded connections. Steel pipes can be threaded through various methods, including manual threading, electric threading machines, and hydraulic threading machines. Manual threading employs a handheld pipe threading tool called a die. The die is positioned on the outside of the pipe, and while pressure is applied, the pipe is rotated to generate the threads. This technique is suitable for smaller diameter pipes and is commonly used for on-site repairs or in smaller operations. For larger diameter pipes, electric threading machines are commonly used. These machines consist of a motor-driven spindle that rotates the pipe and a die head that houses the threading dies. The operator simply feeds the pipe into the machine, and the threading dies automatically cut the threads onto the pipe. Hydraulic threading machines, similar to electric threading machines, utilize hydraulic power to rotate the pipe and create the threads. These machines are typically employed for larger diameter pipes or heavy-duty applications. Irrespective of the method employed, it is crucial to properly prepare the pipe before threading. This may involve cleaning the pipe, eliminating any burrs or sharp edges, and applying a lubricant to minimize friction during the threading process. In conclusion, threading is a widely used and efficient technique for establishing threaded connections on steel pipes. It facilitates easy assembly and disassembly of pipes and fittings, making it a popular choice in industries such as plumbing, construction, and oil and gas.
Q: A333gr6 steel pipe and domestic material of the same?
A333Gr.6 steel is no nickel steel is a kind of fine grain aluminum low temperature toughness of steel, therefore, also called Al killed steel. A333Gr.6 belongs to the United States ANSI and ASTM-SA333 cryogenic steel standards and is used at the lowest impact temperature of -46 degrees celsius. Its temperature, range of use and fracture toughness value are similar to those of domestic 16Mn steel (the minimum usage temperature of 16Mn steel is -40 degrees Celsius).
Q: Can steel pipes be used for conveying potable water?
Yes, steel pipes can be used for conveying potable water. However, it is important to ensure that the steel pipes are coated or lined with suitable materials to prevent corrosion and contamination of the water supply. Regular maintenance and monitoring of the pipes are also necessary to ensure the water remains safe for consumption.
Q: Can steel pipes be used for conveying oil?
Yes, steel pipes can be used for conveying oil. Steel pipes are commonly used in the oil and gas industry for transporting oil due to their strength, durability, and resistance to corrosion. The high strength of steel pipes allows them to withstand the high pressure and temperature conditions that are often associated with oil transportation. Additionally, steel pipes are less prone to leakage and damage compared to other materials, making them a reliable choice for conveying oil over long distances. Moreover, the smooth interior surface of steel pipes helps to minimize friction and enhance the flow of oil. Overall, steel pipes are a preferred option for oil transportation due to their superior mechanical properties and long-term performance.
Q: What are the advantages of using steel pipes in construction?
There are several advantages of using steel pipes in construction. Firstly, steel pipes are highly durable and have a long lifespan, making them ideal for long-term projects. Secondly, steel pipes have a high strength-to-weight ratio, meaning they can support heavy loads without being bulky or cumbersome. Additionally, steel pipes are resistant to corrosion, which ensures their longevity and reduces maintenance costs. Moreover, steel pipes are adaptable and can be easily fabricated and customized to fit specific project requirements. Lastly, steel pipes are eco-friendly as they can be recycled, reducing waste and promoting sustainability in construction.
Q: What are the different grades of steel used in pipe manufacturing?
There are various grades of steel used in pipe manufacturing, including carbon steel, stainless steel, alloy steel, and high-strength low-alloy (HSLA) steel. Each grade has different characteristics and properties, making them suitable for specific applications and environments.
Q: Are steel pipes suitable for conveying fluids?
Yes, steel pipes are suitable for conveying fluids. They are widely used in various industries for transporting liquids and gases due to their high strength, durability, and resistance to corrosion.
Q: What are the different methods of pipe joining using steel pipes?
There are several methods of pipe joining using steel pipes, each with its own advantages and disadvantages. 1. Threaded and coupled: This method involves threading the ends of the steel pipes and using couplings to connect them. It is a simple and cost-effective method, but it is not suitable for high-pressure or gas applications. 2. Welding: Welding is a popular method for joining steel pipes. It involves heating the ends of the pipes and fusing them together using a welding process. This method creates a strong and leak-proof joint, but it requires skilled labor and can be time-consuming. 3. Grooved: In this method, the ends of the steel pipes are grooved and then connected using mechanical couplings or fittings. It is a quick and reliable method, suitable for both high-pressure and low-pressure applications. However, it requires specialized tools and equipment. 4. Flanged: Flanged joints involve connecting steel pipes using flanges, which are flat discs with bolt holes. The pipes are aligned and bolted together using gaskets to create a secure connection. This method is commonly used for large-diameter pipes and high-pressure applications, but it can be expensive and time-consuming to install. 5. Compression: Compression fittings are used to join steel pipes by compressing a ferrule or sleeve against the pipe. This method is quick, easy, and requires no special tools. However, it is not suitable for high-pressure or high-temperature applications. 6. Brazing: Brazing involves heating the ends of the steel pipes and melting a filler material between them to form a joint. It is a reliable method for joining pipes in HVAC and refrigeration systems, but it requires skilled labor and careful temperature control. It is important to consider the specific requirements of the application, such as pressure, temperature, and material compatibility, when selecting the appropriate method of pipe joining using steel pipes.
Q: What are the applications of stainless steel pipes?
Stainless steel pipes have a wide range of applications due to their excellent properties. They are commonly used in industries such as oil and gas, chemical, pharmaceutical, food processing, and construction. These pipes are resistant to corrosion, heat, and pressure, making them suitable for transporting various fluids and gases. Additionally, they are used in plumbing systems, HVAC systems, structural frameworks, and even in decorative applications like handrails and furniture.

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