ERW Casing and Tubing Line Steel Pipe

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ERW Casing and Tubing Line Steel Pipe

Product Description

API 5L standard line pipe form local Mills/factories qualified, with good perfromance and favoralbe price.
Our company have around 2000 tons stock for API 5L line pipe normal size, and we could order for you with the most favorable price from our cooperate mills.
We can supply Line pipe of ERW, LSAW, SSAW and seamless type as per your need.

Outside diameter: 21.3 to 720mm

Standard: API 5L.

Steel Grade: A, B, X42, X46, X52, X56, X60, X65 X70 etc.
Level: PSL1, PSL2.
Type: SMLS, Welded.
Packing: Labeled and bundled together with steel strip

Carbon Steel Pipe Type of pipe finish: Black paint on pipe, beveled or plain end with plastic cap.

Q: What is the difference between carbon steel pipes and stainless steel pipes?: The main difference between carbon steel pipes and stainless steel pipes lies in their composition and properties. Carbon steel pipes are primarily made of iron and carbon, with small amounts of other elements. They are less expensive, have higher tensile strength, and are suitable for transporting fluids and gases in various industries. On the other hand, stainless steel pipes contain iron, chromium, and other alloying elements. They are more expensive, have higher corrosion resistance, and are commonly used in applications where hygiene, durability, and aesthetic appeal are essential, such as in the food, pharmaceutical, and architectural industries.

Q: What is the role of steel pipes in the construction of bridges and tunnels?: Steel pipes play a vital role in the construction of bridges and tunnels as they provide structural support and durability. They are commonly used for the fabrication of the framework and foundation of these infrastructures. Steel pipes offer high tensile strength, corrosion resistance, and the ability to withstand heavy loads, making them an ideal choice for ensuring the integrity and longevity of bridges and tunnels. Additionally, steel pipes can be easily welded, allowing for efficient and cost-effective construction methods.

Q: What is the difference between seamless steel pipes and seamless stainless steel pipes?: The main difference between seamless steel pipes and seamless stainless steel pipes lies in their composition. Seamless steel pipes are made from carbon steel, while seamless stainless steel pipes are made from an alloy of stainless steel, which contains chromium and nickel. This alloy gives stainless steel pipes their unique properties such as corrosion resistance, durability, and a shiny appearance. Additionally, stainless steel pipes are often used in applications where hygiene and sanitation are crucial, such as in the food and pharmaceutical industries.

Q: How are steel pipes used in the aerospace industry?: Steel pipes are widely used in the aerospace industry for various applications. One of the primary uses of steel pipes in aerospace is for the construction of aircraft frames, where they provide the necessary strength and structural integrity. Steel pipes are often used in the fuselage, wings, and landing gear of airplanes, as well as in rocket launch vehicles and space shuttles. Steel pipes are favored in the aerospace industry due to their exceptional strength-to-weight ratio. They are lightweight yet incredibly strong, allowing for the construction of durable and reliable aerospace structures. This is particularly crucial in the aerospace industry, where weight reduction is a significant concern to enhance fuel efficiency and overall performance. Additionally, steel pipes are also utilized for the transportation of fluids and gases within aircraft systems. They are commonly used in the aircraft's hydraulic and fuel systems, carrying crucial fluids such as hydraulic fluid, fuel, and coolant. Steel pipes ensure the safe and efficient flow of these fluids throughout the aircraft, contributing to its proper functioning and performance. Furthermore, steel pipes are employed in the aerospace industry for heat transfer purposes. They are used as part of the aircraft's cooling systems, helping to dissipate heat generated by engines, electrical components, and other systems. Steel pipes are known for their excellent thermal conductivity, making them an ideal choice for transferring heat away from critical areas and preventing overheating. In summary, steel pipes play a vital role in the aerospace industry. They are used in aircraft construction for their strength and structural integrity, as well as for fluid and gas transportation and heat transfer. The use of steel pipes in the aerospace industry ensures the safety, efficiency, and reliability of aerospace structures and systems.

Q: Are steel pipes resistant to vibration?: Yes, steel pipes are generally resistant to vibration due to their inherent strength and rigidity. However, the level of resistance can vary depending on factors such as pipe thickness, design, and installation. Additionally, the presence of external factors like fluid flow or mechanical forces can also affect the level of vibration resistance.

Q: How do you calculate the stress in a steel pipe?: When calculating the stress in a steel pipe, it is necessary to take into account the steel's material properties and the external forces acting upon the pipe. The stress in the pipe is typically determined using the following equation: Stress = Force / Area Initially, the force acting on the pipe must be established. This force may stem from external loads such as pressure, weight, or mechanical forces. The force can be calculated by multiplying the pressure or weight by the surface area it acts upon. For instance, if the pipe is subjected to internal pressure, the force can be determined using the equation: Force = Pressure x Area Subsequently, the cross-sectional area of the pipe needs to be determined. The cross-sectional area of a circular pipe can be calculated using the formula: Area = π x (Diameter / 2)^2 Once the force and area have been determined, the stress can be calculated by dividing the force by the area. This calculation will yield the stress value in units like pounds per square inch (psi) or newtons per square meter (Pa). It is important to bear in mind that the stress calculation assumes that the pipe is in a state of equilibrium and that the material properties of the steel are known. The material properties, such as yield strength and ultimate tensile strength, are utilized to ensure that the calculated stress does not exceed the steel's maximum capacity.

Q: What is the difference between steel pipe and round steel?: The middle of the steel pipe is hollow, and the round steel is solid. When compared with the solid steel such as round steel, the steel tube has the same flexural strength and torsion strengthLight weight, is an economic section of steel, widely used in the manufacture of structural and mechanical parts, such as oil drilling pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction.

Q: What are the different types of steel pipe valves?: Various industries and applications commonly utilize several types of steel pipe valves. Here, we present some of the most frequently used types: 1. Gate valves: These valves control fluid flow by raising or lowering a gate or wedge that obstructs the flow path. They ensure a tight seal when closed and are prevalent in applications requiring complete shut-off or full flow. 2. Globe valves: With a globe-shaped body and a movable plug or disc, these valves regulate fluid flow. They excel in throttling capabilities and find application in situations demanding precise flow control. 3. Ball valves: Fluid flow is managed by a rotating ball with a hole in these valves. Alignment of the hole with the pipe signifies full openness, while a perpendicular hole indicates closure. Ball valves are durable, reliable, and extensively used in swift and effortless shut-off applications. 4. Check valves: These valves allow fluid flow in only one direction, preventing backflow. They are instrumental in safeguarding pumps, compressors, and other equipment from reverse flow-induced damage. 5. Butterfly valves: Butterfly valves feature a rotating disc within the pipe to control fluid flow. They are lightweight, compact, and provide rapid shut-off. Butterfly valves are commonly employed in large-scale applications like water treatment and HVAC systems. 6. Plug valves: By utilizing a cylindrical or conical plug, plug valves regulate flow within the valve body. Their simple design, ease of operation, and dependable shut-off capabilities make them prevalent in applications requiring frequent operation and high pressure ratings. 7. Diaphragm valves: These valves employ a flexible diaphragm to manage fluid flow. Pressing the diaphragm against the valve seat blocks flow, while lifting it allows flow. Diaphragm valves are frequently used in environments requiring sterility or hygiene. These examples illustrate the variety of steel pipe valves available in the market. The choice of valve depends on specific requirements, including flow rate, pressure, temperature, and the nature of the transported fluid.

Q: How are steel pipes used in the manufacturing of shipbuilding?: Steel pipes are used in shipbuilding for various purposes such as constructing the ship's hull, piping systems for fuel and water transport, ventilation systems, and structural support. They provide strength, durability, and corrosion resistance, making them essential components in the construction and operation of ships.

Q: What is the maximum operating temperature for steel pipes?: The specific grade of steel used typically determines the maximum operating temperature for steel pipes. Carbon steel pipes, for instance, can generally endure temperatures ranging from 800-1000 degrees Fahrenheit (427-538 degrees Celsius). On the other hand, stainless steel or high-temperature alloys can withstand even higher temperatures, exceeding 1200-1500 degrees Fahrenheit (649-816 degrees Celsius). To determine the precise maximum operating temperature for a particular type of steel pipe, it is crucial to refer to the manufacturer's specifications or industry standards. This is because varying grades and compositions may have distinct temperature limits.

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