• Welded Steel -- Welded Steel Tube and Pipe System 1
  • Welded Steel -- Welded Steel Tube and Pipe System 2
  • Welded Steel -- Welded Steel Tube and Pipe System 3
Welded Steel -- Welded Steel Tube and Pipe

Welded Steel -- Welded Steel Tube and Pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
8000 m.t./month

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1、Structure of Welded Steel Tube EN10216-1: 

Welded Steel Tube and 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, Welded Steel Tube are perceived to be stronger and more reliable. Historically Welded Steel Tube was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

2、‍‍Main Features of the Welded Steel Tube EN10216-1:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3、Welded Steel Tube EN10216-1 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. 

 

4、Packaging & Delivery

Packaging   Details:

seaworthy   package,bundles wrapped with strong steel strip

Delivery   Detail:

15-30days   after received 30%TT

 

5、FAQ of Welded Steel Tube EN10216-1:  

①How 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.

②How 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.

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.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.

 

6、Welded Steel Tube EN10216-1 Images: ‍‍

Welded Steel -- Welded Steel Tube and Pipe

Q:How do you calculate the pipe flow rate for steel pipes?
To calculate the pipe flow rate for steel pipes, you will need to consider various factors. Firstly, determine the inside diameter of the pipe, typically denoted as D. Next, measure the length of the pipe, denoted as L. Additionally, you will need to know the pressure drop, ΔP, across the pipe and the fluid density, ρ. Once you have this information, you can use the Darcy-Weisbach equation or the Hazen-Williams equation to calculate the flow rate. The Darcy-Weisbach equation is commonly used for pipes with turbulent flow, while the Hazen-Williams equation is often used for pipes with laminar flow. For the Darcy-Weisbach equation, the formula is: Q = (π/4) * D^2 * √(2ΔP/ρ) Where Q is the flow rate in cubic meters per second, D is the inside diameter of the pipe in meters, ΔP is the pressure drop across the pipe in pascals, and ρ is the fluid density in kilograms per cubic meter. For the Hazen-Williams equation, the formula is: Q = C * (D^2.63) * (ΔP^0.54) * (L^0.63) Where Q is the flow rate in cubic meters per second, D is the inside diameter of the pipe in meters, ΔP is the pressure drop across the pipe in pascals, L is the length of the pipe in meters, and C is the Hazen-Williams coefficient which depends on the roughness of the pipe. To accurately calculate the pipe flow rate, it is important to ensure that the units of measurement are consistent throughout the calculation. Additionally, it is crucial to have accurate measurements of the inside diameter, length, pressure drop, and fluid density to obtain reliable results.
Q:What is the role of steel pipes in the renewable energy sector?
The transportation and distribution of various energy sources in the renewable energy sector heavily rely on steel pipes. An important application of steel pipes is seen in the construction of pipelines for transporting natural gas, which is increasingly being used as a cleaner alternative to traditional fossil fuels. Due to its strength, durability, and resistance to corrosion, steel is commonly chosen for these pipelines, ensuring the secure and efficient delivery of natural gas to power plants and other energy consumers. Furthermore, steel pipes are utilized in the installation of geothermal energy systems. Geothermal energy utilizes the heat from the earth's core to generate electricity or provide heating and cooling. Steel pipes are employed to create geothermal wells, allowing the extraction of hot water or steam from underground reservoirs. These pipes must withstand high temperatures and pressures, making steel an ideal material for this purpose. Additionally, hydraulic systems for hydroelectric power plants heavily rely on steel pipes. These power plants generate electricity using the force of flowing water, and steel pipes are used to convey water from the reservoir to the turbines. The durability and reliability of steel ensure the efficient transmission of water, enabling hydroelectric power plants to produce clean and renewable energy. In the construction of solar power plants, steel pipes also play a crucial role. Solar thermal systems concentrate sunlight to generate heat, which is then transferred to a fluid to produce steam and drive turbines. Steel pipes are essential for circulating and transferring this fluid, ensuring the effective operation of the solar power plant. In conclusion, steel pipes are indispensable in the renewable energy sector due to their strength, durability, and resistance to corrosion. They facilitate the transportation of natural gas, the extraction of geothermal energy, the transmission of water in hydroelectric power plants, and the circulation of fluids in solar power plants. By enabling the efficient distribution of various energy sources, steel pipes significantly contribute to the growth and sustainability of the renewable energy sector.
Q:What are the common methods for joining steel pipes?
Different methods exist for joining steel pipes, depending on specific applications and requirements. Some commonly employed techniques include the following: 1. Welding: Among the most frequently used methods to join steel pipes, welding involves heating the pipe ends and applying pressure to fuse them. Various techniques can be employed, such as arc welding, MIG welding, TIG welding, and even laser welding. 2. Threaded connections: This method involves threading the ends of steel pipes to create male and female connections. These threaded ends are then screwed together using pipe threads. Threaded connections are typically utilized for smaller diameter pipes and in low-pressure applications. 3. Flanged connections: Flanges are employed to join steel pipes in situations that necessitate easy assembly and disassembly or frequent maintenance. Flanges are flat, circular discs with bolt holes that allow for the bolting of pipes together. They offer a robust and leak-proof connection. 4. Compression fittings: Compression fittings enable the joining of steel pipes without the need for welding or threading. They consist of a compression nut, compression ring, and compression sleeve. The nut is tightened onto the sleeve, compressing it against the pipe and creating a secure connection. 5. Grooved couplings: Mechanical connections are created with grooved couplings, which are utilized to join steel pipes. The pipe ends are grooved, and a gasket is inserted between the grooves. The couplings are then tightened, compressing the gasket and forming a tight seal. 6. Soldering or brazing: These methods involve the use of filler metal with a lower melting point than the steel pipes. The filler metal is heated and melted, allowing it to flow between the pipe joints and create a bond. Soldering is generally suited for smaller diameter pipes and low-pressure applications. Each joining method has its own advantages and limitations. The appropriate method for joining steel pipes depends on factors such as pipe diameter, application, working pressure, and required joint durability. It is crucial to consider these factors and consult industry standards and guidelines when selecting the suitable joining method for steel pipes.
Q:How are steel pipes protected during transportation and storage?
Steel pipes are usually protected during transportation and storage through various measures such as coating them with anti-corrosion materials, wrapping them with protective films or tapes, using wooden crates or pallets for stacking and securing them with straps or bands. Additionally, pipes are often stored in covered or climate-controlled warehouses to prevent exposure to moisture and other potential damaging elements.
Q:What type of steel pipe dance is used in general?
According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters.
Q:Can steel pipes be used for irrigation pivot systems?
Yes, steel pipes can be used for irrigation pivot systems. They are often preferred due to their durability, strength, and resistance to corrosion. Steel pipes can efficiently transport water over long distances, making them suitable for irrigation pivot systems that require reliable water supply.
Q:How are steel pipes coated for insulation purposes?
Various methods and materials are commonly used to coat steel pipes for insulation. One method involves applying a thermal insulation coating, typically made of a high-performance polymer or epoxy-based material, to the surface of the pipe. To ensure proper adhesion of the coating, the steel pipe is first thoroughly cleaned to remove dirt, grease, and rust. This cleaning process, known as abrasive blasting, involves propelling small particles at high speed to remove contaminants and create a clean, rough surface. Once the surface is prepared, the thermal insulation coating is applied using techniques such as spraying, brushing, or rolling. Multiple layers of the coating are carefully applied to ensure adequate coverage and thickness. This forms a protective barrier between the steel pipe and the external environment, preventing heat transfer and reducing energy loss. In addition to thermal insulation coatings, steel pipes can also be coated with materials like polyurethane foam or mineral wool. These materials offer excellent thermal insulation properties and are often used in applications where high-temperature resistance is necessary. Overall, the insulation of steel pipes involves a combination of surface preparation and the application of specialized coatings. These coatings serve to minimize heat loss, improve energy efficiency, and protect against corrosion and other environmental factors.
Q:How are steel pipes insulated to prevent noise transmission?
Steel pipes are typically insulated to prevent noise transmission through the use of materials such as mineral wool, fiberglass, or foam. These insulation materials are wrapped around the pipes to create a barrier that absorbs and reduces sound waves, preventing them from traveling and causing noise transmission.
Q:What does "1.5" steel tube mean?
1.5 inch [1 1/2 steel pipe, outer diameter 48.3mm, 1.5 inches, refers to the pipe bore is approximately the inner diameter (25.4x1.5 = 38.1mm). [DN40] the specific parameters of the steel pipe are as follows;The average wall thickness is: 3.5mm;The minimum wall thickness is 3.06mm,Nominal diameter is 40mm,External Jing is 48.3mm,
Q:How do you join two steel pipes together without welding?
One common method to join two steel pipes together without welding is by using mechanical fittings or connectors. These fittings are designed to connect pipes securely without the need for welding. Here are a few options you can consider: 1. Threaded Fittings: Threaded fittings have male and female threads that enable you to screw them together. To join the pipes, you will need to cut the ends of the pipes to create male and female threads. Apply thread sealant to ensure a tight and leak-free connection. 2. Compression Fittings: Compression fittings consist of a nut, a compression ring, and a compression seat. These fittings are designed to create a tight seal by compressing the ring against the seat. Simply slide the compression ring and nut onto the pipe ends, and use a wrench to tighten the nut until it forms a secure connection. 3. Flange Connections: Flange connections involve using flanges, which are flat plates with bolt holes, to join the pipes. The flanges are bolted together using gaskets to create a tight seal. This method is commonly used for larger diameter pipes or in situations where frequent disassembly may be required. 4. Grooved Couplings: Grooved couplings utilize a mechanical coupling housing with two grooved ends that fit over the pipe ends. The coupling is then secured using bolts or screws, which tighten the housing around the pipe ends, creating a secure connection. This method is often used in plumbing and fire protection systems. Before deciding on a method, it is crucial to consider the specific requirements of your application, such as the pipe diameter, pressure, and temperature. Additionally, ensure that the chosen method complies with relevant industry standards and regulations to ensure a safe and reliable connection.

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