• LSAW Steel Pipe API Double Submerged Arc Welded Steel Pipe for Construction Structure System 1
  • LSAW Steel Pipe API Double Submerged Arc Welded Steel Pipe for Construction Structure System 2
  • LSAW Steel Pipe API Double Submerged Arc Welded Steel Pipe for Construction Structure System 3
LSAW Steel Pipe API Double Submerged Arc Welded Steel Pipe for Construction Structure

LSAW Steel Pipe API Double Submerged Arc Welded Steel Pipe for Construction Structure

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
5 m.t.
Supply Capability:
10000 m.t./month

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LSAW Pipe
LSAW / Longitudinally Submerged Arc Welded Steel Pipe
 
Outer Diameter: 400-1520mm 
Wall Thickness: 8mm ~ 50mm
Length: 3m ~ 12.3m
 
Standard / Steel Grade
 API5LPSL1/PSL2Gr.B,X42~X80,ASTMA252Gr.2,Gr.3,ASTMA53Gr.B

EN10217-1,EN10219-1,EN10025 S235JR,S275JR,S355JR, EN10224 L235,L275,L355,DIN 1629 ST37,ST44,ST52

GB/T9711.1-1997,GB/T9711-2011: L245~L555

GB/T3091-2008:Q235B,Q345B,20#,16Mn etc.
 
Usage
For conveying petroleum, natural gas, coal gas,drainage,water, chemical material and other medium/low pressure liquids and used for piling project, electric power projects, heat-supply, shipbuilding & construction projects.
 
Delivery Condition
Beveled or plain ends with or without protector or protective caps with or without varnish/2PP/2PE/3PE/ 3PP/FBE external anti-corrosive coating with or without cement mortar/ /Liquid type epoxy resin/ FBE internal anti-corrosive coating as per customer's requirements

Q: What are the different sizes of steel pipe nipples?
The sizes of steel pipe nipples vary depending on their intended use and application. Common sizes include 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", and 2". However, there are many other sizes available to cater to specific needs and requirements.
Q: What is the production process of seamless steel tube?
The main production process for hot rolling seamless steel tube (the main inspection):Tube preparation and check delta to billet heating, heating, rolling, perforated pipe, steel pipe and heat treatment, diameter (minus) Delta to finished tube straightening, finishing and inspection of delta (nondestructive, physicochemical, Taiwan inspection and warehousing)
Q: Can steel pipes be used for brewery installations?
Yes, steel pipes can be used for brewery installations. Steel pipes are often used in breweries for various applications such as transferring fluids, connecting equipment, and creating plumbing systems. Steel pipes are known for their durability, strength, and resistance to corrosion, which makes them suitable for handling the harsh conditions and high-pressure environments typically found in brewery installations. Additionally, steel pipes can be welded together, allowing for seamless connections, ensuring a reliable and leak-free operation. However, it is important to ensure that the steel pipes used in brewery installations meet the necessary standards and regulations to ensure the safety and quality of the beer production process.
Q: Can steel pipes be used for underground water supply?
Indeed, steel pipes possess the capability to be employed in the provision of underground water. Due to their robustness, durability, and resistance to corrosion, steel pipes prove to be appropriate for a wide range of uses, including underground water supply. Nonetheless, it is imperative to utilize steel pipes that are explicitly manufactured for underground purposes and are furnished with a protective coating or lining to thwart corrosion. Furthermore, the installation and upkeep of these steel pipes must be conducted diligently to guarantee their long-term resilience and effectiveness within an underground water supply system.
Q: What is the electrical conductivity of steel pipes?
Due to its metallic nature, steel pipes possess a notable degree of electrical conductivity. The specific composition and properties of the steel employed can influence the electrical conductivity of these pipes. Typically, steel exhibits a conductivity range of 6.99 × 10^6 to 9.64 × 10^6 siemens per meter (S/m) at room temperature. Consequently, steel pipes are capable of effectively conducting electricity and finding application in diverse fields, including electrical transmission and grounding systems.
Q: Can steel pipes be used for the construction of railway tracks?
No, steel pipes are not suitable for the construction of railway tracks. Railway tracks require specialized rails made of steel that are specifically designed to withstand the heavy loads and constant wear and tear associated with train traffic. Pipes do not have the necessary shape, strength, or durability to serve as railway tracks.
Q: How are steel pipes used in the manufacturing of railways?
Steel pipes are commonly used in the manufacturing of railways for various purposes. They are used for the construction of railway tracks, providing a strong and durable foundation. Steel pipes are also used in the manufacturing of railway bridges and tunnels, ensuring structural integrity and support. Additionally, steel pipes are utilized for the transportation of fluids and gases within the railway system, such as fuel or water.
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 do you mean by "SC" in welded pipe SC200? What's the diameter of 200?
Including galvanized steel pipe, but galvanized steel pipe is generally used for plumbing professional, electrical professional generally only civil air defense or high anti-corrosion requirements of the region;
Q: How are steel pipes used in the chemical processing industry?
Steel pipes are used extensively in the chemical processing industry as they offer superior strength, durability, and resistance to corrosion. These pipes are used to transport various chemicals, including acids, alkalis, and solvents, throughout the processing plants. They are also utilized for conveying gases, steam, and liquids under high pressure and temperature conditions. Furthermore, steel pipes are employed in the construction of chemical reactors, heat exchangers, and storage tanks, ensuring the safe and efficient operation of chemical processes.

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