Welded Steel Tube Professional Supplier Steel Pipes
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
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Welded Steel Tube China Professional Supplier Steel Pipes
Product Description:
Structure of Welded Steel Tube ASTM DIN1829:
Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of welded pipe and professioanl service.
Main Features:
• High manufacturing accuracy
• The higher strength
• The small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Satisfy price
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.
- 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: What are the different methods of pressure testing steel pipes?
- There are several different methods of pressure testing steel pipes, including hydrostatic testing, pneumatic testing, and ultrasonic testing. Hydrostatic testing involves filling the pipe with water and pressurizing it to a specified level to check for leaks or weaknesses. Pneumatic testing is similar but uses compressed air or gas instead of water. Ultrasonic testing involves using high-frequency sound waves to detect any defects or flaws in the pipe. Each method has its own advantages and is chosen based on the specific requirements and industry standards.
- Q: What are the common applications of galvanized steel pipes?
- Galvanized steel pipes are commonly used in various industries and applications such as plumbing, water supply systems, gas pipelines, electrical conduits, construction projects, fencing, and outdoor structures. The galvanization process adds a protective zinc coating to the steel, making it resistant to corrosion and extending its lifespan, making it ideal for applications requiring durability and longevity.
- Q: What are the different types of steel pipe coatings for marine applications?
- There are several types of steel pipe coatings used for marine applications, including fusion-bonded epoxy (FBE) coatings, three-layer polyethylene (3LPE) coatings, three-layer polypropylene (3LPP) coatings, and concrete weight coatings (CWC). These coatings provide protection against corrosion, abrasion, and other environmental factors, ensuring the longevity and durability of the steel pipes in marine environments.
- Q: What are the factors affecting the cost of steel pipes?
- The factors affecting the cost of steel pipes include the price of raw materials such as iron ore and coal, the cost of energy and transportation, market demand and supply dynamics, currency exchange rates, manufacturing and labor costs, and any additional taxes or tariffs imposed on steel imports. Other factors may include technological advancements, regulatory compliance, and the overall economic conditions of producing countries.
- Q: How do you calculate the flow rate through a steel pipe?
- Several factors need to be considered in order to calculate the flow rate through a steel pipe. The crucial factors include the pipe's diameter, the pressure difference across the pipe, and the properties of the fluid flowing through it. Accurate measurement of the inside diameter of the steel pipe is the first step. This measurement is vital as it determines the cross-sectional area through which the fluid flows. Ensure that the units used for the diameter measurement are consistent with the units used for other measurements. Next, determine the pressure difference across the pipe. This can be accomplished by measuring the pressure at two points along the pipe, typically at the inlet and outlet. It is important to take the pressure measurements at the same height in order to avoid any discrepancies. The pressure difference is usually given in units of pressure, such as psi, kPa, or bar. Once you have the diameter and pressure difference, you can utilize either the Bernoulli equation or the Darcy-Weisbach equation to calculate the flow rate. The Bernoulli equation establishes a relationship between the pressure difference and the fluid's velocity. However, this equation assumes ideal conditions and overlooks factors like friction losses, viscosity, and turbulence. On the other hand, the Darcy-Weisbach equation is more accurate as it considers these factors. To employ the Darcy-Weisbach equation, you must be aware of the fluid's properties that flow through the pipe, such as density and viscosity. These properties can be determined either through experimentation or by referring to literature values. After gathering all the necessary information, you can use the Darcy-Weisbach equation: Q = (π/4) * D^2 * √[(2 * ΔP) / (ρ * f * L)] Where: Q represents the flow rate, measured in cubic meters per second or any other consistent units. D is the diameter of the pipe, measured in meters or any other consistent units. ΔP is the pressure difference across the pipe, measured in Pascals or any other consistent units. ρ is the density of the fluid flowing through the pipe, measured in kilograms per cubic meter or any other consistent units. f signifies the friction factor, which relies on the Reynolds number and the roughness of the pipe. L represents the length of the pipe, measured in meters or any other consistent units. By substituting the appropriate values for all the variables, you can accurately calculate the flow rate through the steel pipe.
- Q: How are steel pipes protected against external mechanical damage?
- Various methods are employed to safeguard steel pipes against external mechanical damage. One notable approach involves the utilization of protective coatings, which act as a physical barrier between the steel surface and external forces like impact or abrasion. Coatings can be applied using techniques such as painting, epoxy coating, or wrapping the pipe with materials such as polyethylene or polypropylene. Another means of protection is the application of external casing or encasement. This involves installing casing pipes around the steel pipes to provide an additional layer of defense. These casing pipes are typically composed of resilient materials such as concrete, PVC, or ductile iron, which are resistant to external mechanical damage. Moreover, steel pipes can be safeguarded through the implementation of supports and restraints. Properly designed supports and restraints aid in evenly distributing external forces and preventing excessive stress or deformation on the pipe. This can be achieved by employing hangers, clamps, or brackets to secure the pipe in place and minimize the risk of mechanical damage. Furthermore, protective measures can be employed to prevent accidental impacts or collisions that may harm the steel pipes. This can involve the installation of protective barriers, fencing, or warning signs to alert individuals to the presence of pipelines and prevent inadvertent damage. In conclusion, a combination of protective coatings, casing, supports, and preventive measures are utilized to ensure the protection of steel pipes against external mechanical damage. These measures are crucial in maintaining the structural integrity of the pipes and ensuring their long-term performance and reliability.
- Q: Can steel pipes be used for wastewater treatment facilities?
- Yes, steel pipes can be used for wastewater treatment facilities. Steel pipes are known for their durability, corrosion resistance, and high strength, which makes them suitable for handling various types of wastewater and harsh chemicals. Additionally, steel pipes can be easily welded, allowing for flexibility in design and installation.
- 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 are the safety precautions to consider when working with steel pipes?
- When working with steel pipes, it is important to consider several safety precautions. First, always wear personal protective equipment, including gloves, safety glasses, and steel-toed boots to protect against potential injuries. Additionally, ensure that the work area is clear of any tripping hazards and that all tools and equipment are in good working condition. It is crucial to follow proper lifting techniques and use machinery or equipment, such as cranes or forklifts, to move heavy steel pipes to prevent strains or injuries. Furthermore, be cautious of potential fire hazards by keeping flammable materials away from the work area and having fire extinguishers readily available. Finally, regularly inspect the steel pipes for any defects or damages, as working with compromised pipes can pose significant risks.
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Welded Steel Tube Professional Supplier Steel Pipes
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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