• Welded Water Steel Pipe Oil Gas Pipe Steel Pipe System 1
  • Welded Water Steel Pipe Oil Gas Pipe Steel Pipe System 2
  • Welded Water Steel Pipe Oil Gas Pipe Steel Pipe System 3
Welded Water Steel Pipe Oil Gas Pipe Steel Pipe

Welded Water Steel Pipe Oil Gas Pipe Steel Pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
6500 m.t./month

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1、Welded Water Steel Pipe GB9711.2:

GB9711.2 Water Steel Pipe is electric resistance welding, the abbreviation for Oil for transporting oil and natural gas vapor liquid objects, can meet the requirements of high and low pressure, the transport in the world with pipe sector accounted for a pivotal position.

 

2、‍‍Main Features of Welded Black Water  Steel Pipe GB9711.2:

• High manufacturing accuracy

• High strength

• Good visual effect

• Reasonable price  

• Small inertia resistance

• Strong heat dissipation ability

 

3、Welded Black Water  Steel Pipe Specification GB9711.2:

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

1 - 33 mm

Section Shape

Round

Outer Diameter

21 - 610mm

Place of Origin

Tianjin, 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 Black Water  Steel Pipe GB9711.2: 

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 Black Water  Steel Pipe Images GB9711.2: ‍‍

 

 

Welded Water Steel Pipe Oil Gas Pipe Steel Pipe

Welded Water Steel Pipe Oil Gas Pipe Steel Pipe

Q: What is the impact toughness of steel pipes?
The impact toughness of steel pipes refers to the ability of the material to withstand sudden or high-velocity impacts without fracturing or breaking. It is a measure of the material's resistance to cracking under dynamic loading conditions. The impact toughness of steel pipes is an important property as it determines their ability to withstand accidental impacts or external forces during transportation, installation, and operation. The impact toughness of steel pipes is typically evaluated using standardized tests such as the Charpy V-notch test or the Izod test. These tests involve striking a notched sample of the steel pipe with a pendulum or a falling weight and measuring the energy absorbed by the material before it fractures. The impact toughness is then calculated based on this energy absorption. A high impact toughness is desirable in steel pipes as it indicates a greater ability to absorb energy and resist fracture, making them more resistant to sudden impacts or loading conditions. This is particularly important in applications where steel pipes are used in high-stress environments, such as in oil and gas pipelines, automotive components, or structural applications. Various factors can affect the impact toughness of steel pipes, including the chemical composition, heat treatment, and microstructure of the steel. For example, alloying elements like manganese, chromium, and nickel can enhance the impact toughness by promoting the formation of fine-grained microstructures and preventing the propagation of cracks. Similarly, proper heat treatment processes such as quenching and tempering can improve the impact toughness by optimizing the material's microstructure and mechanical properties. In summary, the impact toughness of steel pipes is a crucial property that determines their ability to withstand sudden or high-velocity impacts. It is evaluated through standardized tests and is influenced by factors like chemical composition, heat treatment, and microstructure. A high impact toughness is desirable in steel pipes to ensure their structural integrity and resistance to fracture under dynamic loading conditions.
Q: How do steel pipes handle high-pressure applications?
Steel pipes are able to handle high-pressure applications due to their inherent strength and durability. They have a high tensile strength and are resistant to deformation under extreme pressure. Additionally, the seamless construction of steel pipes ensures that there are no weak points or joints that can compromise their ability to handle high pressures.
Q: Can steel pipes be used for roller coaster tracks?
Yes, steel pipes can be used for roller coaster tracks. In fact, they are one of the most common materials used for roller coaster tracks due to their strength, durability, and versatility. Steel pipes provide excellent support and stability for the roller coaster cars, ensuring a safe and thrilling ride experience for passengers. Additionally, steel pipes can be easily shaped and welded to create various track designs, including loops, twists, and turns, making them ideal for creating exhilarating roller coaster layouts. Furthermore, steel pipes are resistant to corrosion and can withstand harsh weather conditions, making them a reliable choice for outdoor roller coasters. Overall, steel pipes are a popular and reliable choice for roller coaster tracks, offering both safety and excitement for riders.
Q: How do you calculate the pipe pressure drop coefficient for steel pipes?
To determine the pipe pressure drop coefficient for steel pipes, one can utilize the Darcy-Weisbach equation. This equation establishes a relationship between the pressure drop within a pipe and various factors, including the flow rate, pipe diameter, pipe length, and the properties of the fluid being conveyed. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is represented by the symbol f and is dimensionless. It denotes the resistance to flow within the pipe. The value of f is contingent upon the flow regime, which can either be laminar or turbulent. In the case of laminar flow, occurring at low flow rates or with viscous fluids, the pressure drop coefficient can be determined through employment of the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, arising at higher flow rates, the calculation of the pressure drop coefficient becomes more intricate. It is influenced by the roughness of the pipe wall, which impacts flow resistance. Typically, roughness is quantified using the relative roughness, defined as the ratio of the pipe wall roughness to the pipe diameter. To compute the pressure drop coefficient for turbulent flow in steel pipes, empirical correlations or Moody's diagram can be utilized. Moody's diagram provides a graphical depiction of the friction factor as a function of the Reynolds number and relative roughness. The Reynolds number characterizes the flow regime and is determined using fluid properties, flow rate, and pipe dimensions. By identifying the intersection of the Reynolds number and relative roughness on Moody's diagram, one can ascertain the corresponding pressure drop coefficient. It is crucial to note that the pressure drop coefficient for steel pipes may vary depending on specific pipe dimensions, surface roughness, and fluid properties. Consequently, it is advisable to refer to relevant standards or engineering sources for precise and current values of the pressure drop coefficient for steel pipes in a particular application.
Q: What are the different coatings applied to steel pipes?
There are several different coatings that can be applied to steel pipes to enhance their corrosion resistance and durability. Some common coatings include epoxy coatings, polyethylene coatings, zinc coatings (galvanization), and polyurethane coatings. Each coating has its own specific benefits and is chosen based on the intended application and environmental conditions.
Q: What are the different types of flanges used with steel pipes?
There are several types of flanges commonly used with steel pipes, including slip-on flanges, weld neck flanges, socket weld flanges, threaded flanges, and blind flanges. These flanges are used to connect and secure steel pipes in various industrial applications, each offering specific advantages depending on the requirements of the piping system.
Q: What are the typical lengths of steel pipes?
The typical lengths of steel pipes can vary depending on their purpose and application. However, common lengths range from 20 feet (6 meters) to 40 feet (12 meters) in commercial and industrial settings.
Q: What are the factors to consider when selecting pipe materials for corrosive environments?
To ensure the longevity and effectiveness of a piping system in corrosive environments, several important factors must be considered. Firstly, the corrosion resistance of the pipe material is crucial. It is essential to select a material highly resistant to corrosion as time can cause significant damage to pipes in corrosive environments. Stainless steel, fiberglass, PVC, and CPVC are materials known for their excellent corrosion resistance. Secondly, the chemical compatibility of the pipe material with the corrosive environment should be assessed. Different materials have varying resistance levels to different chemicals, so it is important to ensure that the chosen material can withstand the specific chemicals present. Consulting chemical compatibility charts and seeking expert advice can aid in selecting the right material. Furthermore, the temperature and pressure requirements within the corrosive environment should be taken into account. Some materials have limitations in terms of temperature and pressure resistance, exceeding which can lead to pipe failure. It is crucial to choose a material that can handle the required temperature and pressure ranges without compromising its structural integrity. The cost of the pipe material and its installation should also be considered. While certain materials may offer high corrosion resistance, they may also be more expensive. Striking a balance between the desired level of corrosion resistance and the available budget is essential. Lastly, the maintenance requirements and overall durability of the pipe material should be evaluated. 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 ensures long-term reliability and cost-effectiveness. In conclusion, when selecting pipe materials for corrosive environments, it is important to 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 construction of water treatment plants?
Steel pipes are widely used in the construction of water treatment plants due to their numerous advantages and suitability for this specific application. These pipes are utilized in various ways to ensure the efficient and reliable functioning of water treatment facilities. Firstly, steel pipes are commonly used in the transportation of water from its source to the treatment plant. They are highly durable and can withstand high pressure, ensuring the safe and secure delivery of water over long distances. Steel pipes are also resistant to corrosion, which is crucial in preventing contamination of the water supply. Within the treatment plant, steel pipes are used in the distribution system to transport water to different treatment processes. They are often laid underground or within the facility's infrastructure, ensuring a seamless flow of water between different treatment units. Steel pipes are known for their high strength and structural integrity, making them suitable for this purpose. Furthermore, steel pipes are used in the construction of various water treatment equipment. For instance, they are utilized in the construction of sedimentation tanks, where water is allowed to settle, and impurities are removed. Steel pipes are also used in the construction of filtration systems, where water passes through different layers of filters to remove contaminants. Another important application of steel pipes in water treatment plants is in the construction of pumping stations. These stations are responsible for maintaining the water flow throughout the treatment process. Steel pipes are employed in the design and construction of the pumping systems to ensure the efficient movement of water between different stages of treatment. In summary, steel pipes play a crucial role in the construction of water treatment plants. They are used for the transportation of water, distribution within the facility, construction of treatment equipment, and in the design of pumping stations. Their durability, resistance to corrosion, and high strength make them an ideal choice for this critical infrastructure.
Q: What is the difference between steel pipe and PVC conduit?
Steel pipe and PVC conduit serve distinct purposes and possess unique characteristics. The material composition stands as a primary distinction between steel pipe and PVC conduit. Steel pipe consists of robust and enduring materials, typically carbon steel or stainless steel, rendering it sturdy and resistant to impact. Consequently, it finds its utility in heavy-duty applications such as plumbing or structural support. In contrast, PVC conduit is constructed from polyvinyl chloride, a type of plastic. PVC's lightweight, flexibility, and ease of manipulation make it ideal for electrical purposes like safeguarding and directing electrical wires. Resistance to corrosion represents another disparity between the two. Steel pipe exhibits greater resistance to corrosion than PVC conduit, particularly when fortified with protective layers like zinc or epoxy. This makes steel pipe suitable for outdoor applications, subterranean installations, or environments with high moisture or corrosive elements. PVC conduit, while generally resistant to moisture and chemicals, may deteriorate over time when exposed to sunlight and can be harmed by specific chemicals. Consideration of cost becomes another factor. Steel pipe generally incurs greater expenses than PVC conduit due to its material and manufacturing process. Nonetheless, steel pipe's durability and extended lifespan establish it as a cost-effective selection in the long run, particularly for applications necessitating high strength and longevity. On the contrary, PVC conduit is comparatively inexpensive and readily accessible, rendering it a more affordable choice for numerous electrical projects. Lastly, installation methods differ between the two. Steel pipe is typically connected through threaded connections or welded joints, mandating specialized tools and skills. Conversely, PVC conduit can be effortlessly cut, assembled, and connected using PVC cement or fittings. This renders PVC conduit a more DIY-friendly option for electrical installations. In summary, steel pipe and PVC conduit diverge in terms of material composition, resistance to corrosion, cost, and installation methods. Steel pipe boasts strength, durability, and corrosion resistance, making it suitable for rigorous applications. PVC conduit, conversely, possesses lightness, flexibility, and affordability, rendering it ideal for electrical projects.

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