API PSL2 LSAW STEEL 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: What are the common sizes of steel pipes available?: The specific industry or application determines the availability of common sizes of steel pipes. However, different industries commonly use several standard sizes. These sizes are usually identified by their nominal pipe size (NPS) or outside diameter (OD). Steel pipes are commonly found in sizes such as 1/8 inch, ¼ inch, ½ inch, ¾ inch, 1 inch, 1 ¼ inch, 1 ½ inch, 2 inch, 2 ½ inch, 3 inch, 3 ½ inch, 4 inch, 5 inch, 6 inch, 8 inch, 10 inch, 12 inch, 14 inch, 16 inch, 18 inch, 20 inch, 24 inch, 26 inch, 30 inch, 36 inch, 42 inch, 48 inch, and 54 inch. These sizes are widely used in various applications, including plumbing, construction, oil and gas pipelines, structural supports, and industrial processes. It is important to note that these sizes may slightly differ according to industry standards or requirements. Moreover, steel pipes are available in different wall thicknesses known as schedules. The most commonly used schedules are schedule 40, schedule 80, schedule 160, and schedule XXS (extra extra strong). The schedule number indicates the pipe's wall thickness, with higher numbers indicating thicker walls. To summarize, the available common sizes of steel pipes range from 1/8 inch to 54 inches in diameter. These sizes are commonly used in different industries and applications, and their wall thickness can vary based on the specific schedule.

Q: What are the different types of steel pipe coatings for nuclear power plants?: There are several types of steel pipe coatings used in nuclear power plants, including epoxy coatings, polyethylene coatings, fusion bonded epoxy coatings, and coal tar enamel coatings. These coatings are applied to steel pipes to provide protection against corrosion, enhance durability, and maintain the integrity of the pipes in the demanding environment of nuclear power plants.

Q: How are steel pipes measured?: Steel pipes are typically measured by their outer diameter (OD) and wall thickness. The OD is measured using a caliper or tape measure, while the wall thickness is determined using a specialized instrument called a micrometer. These measurements are crucial in determining the size and strength of steel pipes for various applications.

Q: Are steel pipes resistant to vibration?: Yes, steel pipes have excellent resistance to vibration due to their high strength and stiffness properties. The inherent rigidity of steel makes it highly resistant to the effects of vibration, making steel pipes a reliable choice for applications where vibration is a concern.

Q: Can steel pipes be used for oil refinery applications?: Yes, steel pipes can be used for oil refinery applications. Steel pipes offer many advantages for oil refinery applications including high strength, durability, and resistance to corrosion. They are able to withstand high pressure and temperature conditions that are common in oil refinery operations. Steel pipes are also easy to transport and install, making them a popular choice for oil refinery projects. Additionally, steel pipes can be customized to meet specific requirements such as size, thickness, and coating, making them suitable for a wide range of oil refinery applications.

Q: How do you calculate the buoyancy of submerged steel pipes?: To calculate the buoyancy of submerged steel pipes, you need to consider the principle of Archimedes' buoyancy. This principle states that the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. To calculate the buoyant force, you need to determine the volume of the fluid displaced by the submerged steel pipe. The volume can be calculated by multiplying the cross-sectional area of the pipe by the length of the submerged portion. Next, you need to determine the density of the fluid in which the steel pipe is submerged. This can be obtained from the fluid's properties or by referring to known values. Once you have the volume and density of the fluid, you can determine the weight of the fluid displaced by the submerged pipe using the equation: weight = volume × density × acceleration due to gravity. Finally, the buoyant force can be calculated by multiplying the weight of the displaced fluid by the acceleration due to gravity. This will give you the upward force exerted on the submerged steel pipe by the fluid. It is important to note that in order to accurately calculate the buoyancy of submerged steel pipes, you should also consider any additional factors such as the weight of the pipe itself, any attached equipment or coatings, and the specific conditions of the fluid in which it is submerged.

Q: Can steel pipes be used for fire protection systems?: Yes, steel pipes can be used for fire protection systems. Steel pipes have high heat resistance and can withstand extreme temperatures, making them suitable for carrying water, foam, or other fire suppressants in fire protection systems. Additionally, steel pipes are durable, strong, and have a long lifespan, making them a reliable choice for fire safety applications.

Q: Can steel pipes be used for offshore applications?: Yes, steel pipes can be used for offshore applications. Steel pipes are commonly used in offshore industries due to their durability, strength, and resistance to corrosion. Offshore applications such as oil and gas exploration, drilling, production, and transportation of fluids and gases often require the use of steel pipes. These pipes are designed to withstand harsh and corrosive environments found in offshore locations, including exposure to saltwater, extreme temperatures, and high pressure. Additionally, steel pipes can be manufactured to meet specific requirements for offshore projects, including size, thickness, and material grade, to ensure safety and reliability. Overall, steel pipes are a reliable and widely used choice for offshore applications.

Q: How are steel pipes used in the manufacturing of hydraulic systems?: Steel pipes are commonly used in the manufacturing of hydraulic systems due to their durability, strength, and resistance to high pressure. These pipes are used to transport hydraulic fluids, such as oil or water, throughout the system, ensuring the smooth operation of various components, such as pumps, valves, and cylinders. The steel pipes provide a reliable and leak-free connection between these components, allowing for efficient transfer of power and control in hydraulic systems.

Q: Can steel pipes be used for chimney flues?: Yes, steel pipes can be used for chimney flues. Steel pipes are often used in chimney systems due to their durability, heat resistance, and ability to withstand high temperatures. However, it is important to ensure that the steel pipes meet the necessary safety and building code requirements for chimney flues.

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