CARBON STEEL LSAW PIPE

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LSAW Steel Pipe
1 Size: 219-3200 mm*5-25.4mm
2 Material Q235/Q345/20#/X42-X65/J55 etc

Standard:
EN-10208-1/2, GB9711.1/2 etc.

Steel Grade:
B, X42 up to X70; L245, L290 up to L48

Usage:
Used for Steel Structure

Size:
LSAW from 219.1mm to 3200mm, thickness from 5mm to 25.4mm
Ends: Beveled ends with protector

Surface:
Bare / Varnish coating / FBE, 3PE coating DIN30670 / or by client option

Packing:
Casing, bundled shipping in containers or by break bulk vessel

Process	Longitudinal Submerged- Arc Welded Steel Pipe (DSAW -Double Submerged arc welded)
Usage	Used for liquid delivery, such as water, gas, and oil; construction and piling
Standard	API 5L(PSL1,PSL2), ASTM A252,EN10217, EN10219,KS F4602, KS D3583, BS, JIS, IS
Certificate	ISO 9001:2008, ISO 14001, ISO 18001, API 5L (PSL1, PSL2),EN10217, EN10219 and so on.
Outside Diameter	323.9 mm-2134 mm (12"-84")
Wall Thickness	6 mm - 80mm
Length	6 – 14 m
Grade	API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70 ASTM A252 GR 1, GR 2, GR 3 EN 10219: S275, S275JR, S355JRH, S355J2H EN 10224, L235,L275,L355
Surface	Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Varnish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement
Test	Chemical Component Analysis, Mechanical Properties (Tensile strength, Yield strength, Elongation), Hydrostatic Test, X-ray Test,Size Inspection.
Mill Test Certificate	Mill Test Certificate:EN 10204/3.1B

Q: Can steel pipes be used for wastewater disposal?: Indeed, wastewater disposal can be accomplished using steel pipes. Owing to their robustness, strength, and corrosion resistance, steel pipes find widespread application in wastewater systems. They are capable of withstanding the substantial pressure and flow rates commonly encountered in wastewater scenarios, efficiently conveying it to treatment plants or other disposal sites. Moreover, steel pipes can be enhanced with coatings or linings that offer additional safeguard against corrosion or chemical reactions with the wastewater, further enhancing their durability and efficacy in wastewater disposal.

Q: What is the difference between carbon steel and alloy steel pipes?: Carbon steel pipes and alloy steel pipes are two distinct types of steel pipes, characterized by their composition and properties. Carbon steel pipes, consisting mainly of carbon and iron, incorporate small quantities of other elements such as manganese, silicon, and copper. These pipes are renowned for their robustness and durability, making them a favored option in industries like construction, oil and gas, and automotive. Carbon steel pipes are relatively low-priced and exhibit commendable resistance to corrosion. In contrast, alloy steel pipes are produced by introducing additional alloying elements to carbon steel. These alloying elements encompass chromium, nickel, molybdenum, vanadium, and others. The incorporation of these elements augments the steel's properties, resulting in increased strength, superior corrosion resistance, and enhanced heat resistance. Alloy steel pipes are commonly employed in applications involving high temperatures and pressures, such as power plants, refineries, and chemical plants. Regarding cost, alloy steel pipes generally incur higher expenses compared to carbon steel pipes due to the inclusion of supplementary alloying elements. Nevertheless, the added advantages in terms of performance and longevity often justify the elevated cost. To summarize, the primary distinction between carbon steel and alloy steel pipes lies in their composition and properties. Carbon steel pipes primarily consist of carbon and iron, while alloy steel pipes contain additional alloying elements to enhance their properties. Carbon steel pipes are celebrated for their strength and affordability, whereas alloy steel pipes offer improved strength, corrosion resistance, and heat resistance.

Q: Can steel pipes be used for conveying compressed air?: Yes, steel pipes can be used for conveying compressed air. Steel pipes are commonly used in applications where high pressure and durability are required, such as in industrial settings. Steel pipes have a high tensile strength and can withstand the high pressures generated by compressed air systems. Additionally, steel pipes are resistant to corrosion, which is important when dealing with moisture in compressed air. However, it is important to ensure that the steel pipes are properly sized and rated for the specific pressure and flow requirements of the compressed air system. Additionally, proper installation and maintenance practices should be followed to prevent any potential leaks or failures.

Q: What are the different methods of joining steel pipes?: There are several methods of joining steel pipes, including welding, threading, flanging, grooving, and using mechanical couplings.

Q: What are the different grades of steel pipes?: There are several different grades of steel pipes, including carbon steel, stainless steel, and alloy steel. Each grade has its own unique properties and is used for specific applications based on factors such as strength, corrosion resistance, and temperature resistance.

Q: What are the different methods of cleaning steel pipes?: There are several methods of cleaning steel pipes, including mechanical cleaning, chemical cleaning, and high-pressure water jetting. Mechanical cleaning involves using wire brushes, scrapers, or sandpaper to physically remove debris and rust from the pipe's surface. Chemical cleaning involves using solvents or acids to dissolve contaminants and rust, followed by flushing the pipe with water. High-pressure water jetting uses a stream of water at high pressure to remove dirt, rust, and other deposits from the pipe's interior and exterior surfaces.

Q: What is the maximum bending radius for steel pipes?: The maximum bending radius for steel pipes typically depends on the specific grade and diameter of the pipe, but generally, it ranges from three to five times the pipe's outer diameter.

Q: How are steel pipes measured and sized?: Steel pipes are measured and sized based on their outer diameter (OD) and wall thickness. The OD is the measurement of the outer circumference of the pipe, while the wall thickness refers to the thickness of the pipe's walls. These two measurements are essential in determining the size of steel pipes, which are commonly categorized using nominal pipe size (NPS) or nominal diameter (DN). NPS is a North American standard, while DN is an international standard. The sizing process ensures uniformity and facilitates compatibility with fittings and other pipeline components.

Q: The outer circle of a seamless steel pipe 50 head into the outer circle of the 40 to close: Cold drawn steel tube and cold rolled steel pipe mill is a complete set of equipment which combines cold rolling, cold drawing, cold rolling and cold drawing to produce pipes. It is a unit for deep processing of hot-rolled pipes or welded pipes.

Q: How are steel pipes used in the construction of water treatment plants?: Steel pipes are commonly used in the construction of water treatment plants for various purposes such as transporting water, carrying chemicals, and handling wastewater. They are often used as the main conduits for distributing treated water throughout the plant, as well as for supplying raw water from the source to the treatment facility. Steel pipes also play a crucial role in the transportation of chemicals used in the treatment processes, ensuring their safe and efficient delivery. Additionally, steel pipes are utilized for the disposal of wastewater and sludge, allowing for proper drainage and disposal systems within the plant. Overall, steel pipes are essential components in the construction and operation of water treatment plants, providing the necessary infrastructure for the efficient and effective treatment of water.

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