API PSL1 LSAW STEEL PIPE

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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OD:406.4 - 1422.4MM
WT:6.0-65 MM

Packaging & Delivery

Packaging Detail:

standard packing suitable shipping by sea.oiled/ Varnish painting/FBE/2PP/2PE/3PE, bevelled ends with caps, marking as required.Plastic wrapped. shipped by air,train or sea pipes shipped by full containers, LCL or bulk cargo according to the contracts and customer requirements. 1M-5.85M shipped by 20' container,5.85m-12m shipped by 40' container. pipes with FBE/2PP/2PE/3PE coating will be shipped by bulk cargo, or open top containers.

Delivery Detail:

7-35 days after advance paymen

Standard:BS,ASTM,GB/T,API,EN t

Q: What are the common standards for coating and lining of steel pipes?: Various organizations and regulatory bodies have outlined the common standards for coating and lining steel pipes to ensure their durability, corrosion resistance, and overall quality. These standards are widely recognized and utilized in different industries. Here are some examples: 1. The American Society for Testing and Materials (ASTM) has developed numerous standards for coating and lining steel pipes. For instance, ASTM A775/A775M addresses epoxy-coated reinforcing steel, ASTM A1064/A1064M focuses on metallic-coated steel wire, and ASTM A1057/A1057M covers fusion-bonded epoxy-coated steel reinforcement. 2. The American Water Works Association (AWWA) has established standards specifically for coating and lining steel pipes used in the water industry. AWWA C210 deals with liquid epoxy coating systems for both the interior and exterior of steel water pipelines, while AWWA C213 focuses on fusion-bonded epoxy coating for these pipelines. 3. The National Association of Corrosion Engineers (NACE) develops standards and recommended practices for corrosion control in steel pipes. NACE SP0169 provides guidelines for selecting and applying coatings for underground or submerged steel pipelines, and NACE SP0198 offers recommendations for external coatings of steel pipelines. 4. The International Organization for Standardization (ISO) has also developed various standards pertaining to coating and lining steel pipes. ISO 21809-1 specifies the requirements for external coatings applied to buried or submerged pipelines, while ISO 21809-2 concentrates on the internal coating and lining of such pipelines. These standards encompass multiple aspects of the coating and lining process, including surface preparation, application methods, minimum coating thickness, adhesion, and quality control. Adhering to these standards ensures that steel pipes receive proper protection against corrosion, abrasion, and other forms of deterioration. Consequently, they enjoy a longer service life and enhanced performance in industries such as oil and gas, water supply, and infrastructure.

Q: The outer circle of a seamless steel pipe 50 head into the outer circle of the 40 to close: According to the metal processing performance, pipe size, quality requirements, as well as investment and benefits to choose different processing methods and corresponding auxiliary processes. The basic process of cold rolling of cold drawn pipe are: (1) tube feeding, the pipe material for hot-rolled finished or semi-finished tube, pipe extrusion pipe and welded pipe; (2) pipe material preparation, including inspection, bundling, pickling, cleaning, washing, drying, neutralization, grease and so on; (3) cold processing (cold or cold); (4) finished finishing finished including heat treatment, straightening, sampling, end cutting, inspection (manual inspection and various testing), pressure test, oiling, packaging and warehousing etc.. Different products are refined and the content varies.

Q: Theoretical weight of 25*25*1.5 square steel tubes: Theoretical weight can be directly from the steel tube under the table look up, you can also press type calculation:Weight per meter =4x, wall thickness x (side length - wall thickness) x0.00785. The length of the square tube and the wall thickness are in millimeters, and the weight of each square meter is in kilograms.

Q: How do you calculate the maximum allowable deflection for steel pipes?: When calculating the maximum allowable deflection for steel pipes, various factors must be taken into account. These factors include the pipe diameter, material properties, support conditions, and desired level of deflection. The maximum allowable deflection is typically determined according to industry standards and codes. One popular method for calculating the maximum allowable deflection is based on the pipe's span-to-diameter ratio, also known as the L/D ratio. The L/D ratio is calculated by dividing the pipe's span (the distance between supports) by its diameter. Numerous industry codes provide guidelines for the maximum allowable deflection based on the L/D ratio. For instance, the American Society of Mechanical Engineers (ASME) B31.1 Power Piping Code suggests that for carbon steel pipes, the maximum allowable deflection should not exceed 3% of the pipe's span when the L/D ratio is 100 or less. However, as the L/D ratio increases, the deflection limit decreases to ensure the pipe's stability and structural integrity. To calculate the maximum allowable deflection using the L/D ratio method, you first need to determine the L/D ratio based on the pipe's span and diameter. Then, you can refer to the applicable code or standard to find the corresponding maximum allowable deflection limit. It's important to note that other factors, such as the pipe material's yield strength, wall thickness, and the type of loading (e.g., dead load, live load), also influence the maximum allowable deflection. Therefore, it is crucial to consult the relevant industry standards, codes, and engineering principles to accurately calculate the maximum allowable deflection for steel pipes.

Q: How are steel pipes used in high-rise buildings?: Steel pipes are commonly used in high-rise buildings for various purposes. They are primarily used for structural support as they provide strength and durability, allowing the building to withstand the vertical loads and forces that occur due to its height. Steel pipes are also used for plumbing systems, carrying water and other fluids throughout the building. Additionally, they can be used for HVAC systems, providing ventilation and air conditioning to each floor. Overall, steel pipes are integral components in high-rise buildings, ensuring the safety, functionality, and comfort of the occupants.

Q: What's the difference between hot-rolled seamless steel tube and cold-rolled seamless steel tube?: Cold rolled seamless steel pipe (DIAL) in general, steel pipe for low and medium pressure boiler tube, high-pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, oil cracking tube and other steel tube, including carbon thin-walled steel, alloy thin-walled steel, stainless steel, thin steel tube.

Q: What are the common methods for cleaning the inner surface of steel pipes?: Some common methods for cleaning the inner surface of steel pipes include chemical cleaning, mechanical cleaning, and high-pressure water jetting. Chemical cleaning involves using solvents or acids to dissolve and remove any contaminants or residue. Mechanical cleaning involves using tools such as wire brushes, scrapers, or pigs to physically scrub and scrape the inner surface of the pipes. High-pressure water jetting involves using a pressurized stream of water to blast away dirt, scale, or other deposits. These methods can be used individually or in combination, depending on the specific cleaning requirements and the condition of the pipes.

Q: Are steel pipes environmentally friendly?: Steel pipes can be considered environmentally friendly due to their high durability and recyclability. Steel is a sustainable material that can be reused multiple times without losing its structural integrity. Additionally, steel pipes have low emission rates during production and can be coated to prevent corrosion, extending their lifespan. However, the environmental impact of steel pipes also depends on factors such as extraction of raw materials and energy consumption during manufacturing.

Q: How are steel pipes classified based on their thickness?: There are three main categories for classifying steel pipes based on their thickness: Schedule, Nominal Pipe Size (NPS), and Wall Thickness. In North America, the Schedule classification is commonly used and refers to the pipe's wall thickness. It is indicated by numbers like Schedule 10, Schedule 40, and Schedule 80, where a higher number means a thicker pipe. On the other hand, the Nominal Pipe Size (NPS) classification is used internationally and refers to the pipe's inside diameter. It is expressed in inches and is usually followed by a schedule number to indicate the wall thickness. For example, NPS 6 Schedule 40 means a pipe with a 6-inch inside diameter and a wall thickness according to Schedule 40. Additionally, steel pipes can be classified based on their wall thickness in millimeters or inches. This classification provides a more precise measurement of the pipe's thickness and is commonly referred to as the "wall thickness" or "wt" in specifications. The wall thickness is measured from the outside diameter to the inside diameter and can be expressed in various units of measurement like millimeters, inches, or gauge. In summary, steel pipes are classified based on their thickness using different systems such as Schedule, Nominal Pipe Size (NPS), and Wall Thickness. These classifications ensure the selection of the appropriate pipe for specific applications, taking into account factors such as pressure requirements, structural integrity, and compatibility with other system components.

Q: How are steel pipes used in the manufacturing of agricultural machinery and equipment?: Steel pipes are widely used in the manufacturing of agricultural machinery and equipment due to their various beneficial properties. These pipes are utilized in several ways to enhance the efficiency and durability of agricultural machinery. One of the primary uses of steel pipes in agricultural machinery is for the construction of frames and chassis. The high strength and structural integrity of steel pipes make them ideal for supporting heavy loads and withstanding the rigorous conditions often encountered in agricultural operations. Whether it is a tractor, combine harvester, or tillage equipment, steel pipe frames provide the necessary stability and sturdiness required for these machines to perform efficiently in the field. Steel pipes are also commonly used in the hydraulic systems of agricultural machinery. These pipes serve as conduits for hydraulic fluids, allowing for the smooth and reliable operation of various components such as hydraulic cylinders, pumps, and motors. Due to their resistance to corrosion and high pressure, steel pipes ensure the longevity of hydraulic systems, reducing maintenance and repair costs for agricultural machinery. Furthermore, steel pipes find applications in the exhaust systems of agricultural equipment. The exhaust gases produced by engines need to be safely and efficiently expelled to minimize environmental impact and maintain engine performance. Steel pipes with appropriate thickness and thermal resistance are used to construct exhaust systems, allowing for the effective removal of exhaust gases and reducing noise pollution. In addition, steel pipes are utilized in the manufacturing of irrigation systems and equipment used in agriculture. Whether it is for transporting water from a source to the fields or distributing water to crops through sprinklers or drip irrigation, steel pipes offer the necessary durability and resistance to pressure, ensuring efficient water delivery and minimizing leaks. Overall, the use of steel pipes in the manufacturing of agricultural machinery and equipment is crucial for enhancing their performance, durability, and efficiency. The strength, structural integrity, resistance to corrosion, and high pressure capabilities of steel pipes make them indispensable components in various applications within the agricultural sector.

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