ERW casing

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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OD(Inch)	5	5 1/2	6 5/8	7	8 5/8	9 5/8	10 3/4	13 3/8	16	20
Thickness(mm)	5	6	7	8	9	10	11	12	13	14	15	16
Grade	J55	K55	N80	N80Q	L80	P110
standar d	API 5CT

Ends	Plain ends, cutting, threading, beveled, flange, etc
Packing	Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement.
Certification	BV, IAF, SGS,COC, ISO or as per customer
Inspection	With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, Also With Nondestructive Inspection
Application	Urban construction pipe, machine structure pipe, agriculture equipment pipe, water and gas pipe, Greenhouse pipe, Building material tube, Low pressure fluid tube, Oil Industry pipe, etc
Trade Terms	FOB, CFR, CIF, EXW, etc.
Payment Terms	L/C, D/A, D/P, T/P Western Union, MoneyGram acceptable, T/T preferred
Delivery Time	Usually within 10-30 days after receipt of deposit, ASAP
Loading Port	Xingang , Tianjin
Original Place	Shandong, China

Q: Can steel pipes be used for underground gas distribution?: Yes, steel pipes can be used for underground gas distribution. Steel pipes are commonly utilized in the gas industry due to their high strength, durability, and resistance to corrosion. They are capable of withstanding the pressure and stress associated with gas distribution systems. Additionally, steel pipes have been proven to be reliable and safe for transporting natural gas underground. However, it is essential to ensure that the steel pipes are properly coated and protected against corrosion to maintain their integrity and longevity. Regular inspections and maintenance are also necessary to identify and address any potential issues that may arise.

Q: How do steel pipes handle water erosion?: Steel pipes are highly resistant to water erosion due to their inherent strength and durability. The smooth surface of steel pipes minimizes friction and turbulence, reducing the likelihood of erosion. Additionally, steel pipes can be coated with protective layers, such as galvanization or epoxy, that further enhance their resistance to water erosion.

Q: What are the factors to consider when selecting steel pipes for a specific application?: When selecting steel pipes for a specific application, there are several factors to consider. The first is the type of steel needed, which can vary based on factors such as the desired strength, corrosion resistance, and temperature resistance. Secondly, the size and dimensions of the pipes should be evaluated to ensure they meet the requirements of the application. Additionally, the specific application's operating conditions, such as pressure, temperature, and environment, should be taken into account. The manufacturing process and quality standards of the steel pipes, as well as the supplier's reputation and reliability, should also be considered. Lastly, cost-effectiveness and budget constraints are essential factors to keep in mind when selecting steel pipes for a specific application.

Q: How do you calculate the buoyancy of submerged steel pipes?: In order to calculate the buoyancy of submerged steel pipes, one must take into account Archimedes' buoyancy principle. According to this principle, the force exerted on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. To calculate the buoyant force, it is necessary to determine the volume of fluid displaced by the submerged steel pipe. This can be done by multiplying the cross-sectional area of the pipe by the length of the submerged portion. Next, it is important to ascertain the density of the fluid in which the steel pipe is submerged. This information can be obtained from the properties of the fluid or by referring to known values. Once the volume and density of the fluid have been determined, the weight of the fluid displaced by the submerged pipe can be calculated 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 yield the upward force exerted on the submerged steel pipe by the fluid. When accurately calculating the buoyancy of submerged steel pipes, it is crucial to take into account 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: How are steel pipes used in the oil and gas pipeline transportation?: Steel pipes are widely used in the oil and gas industry for pipeline transportation due to their durability, strength, and resistance to corrosion. These pipes are specifically designed to withstand high pressure and transport various types of fluids, including crude oil, natural gas, and refined petroleum products. In oil and gas pipeline transportation, steel pipes are primarily used for three main purposes: gathering, transmission, and distribution. Gathering pipelines are responsible for collecting oil and gas from the production wells and transporting them to processing facilities. Steel pipes are used in these pipelines due to their ability to withstand the harsh conditions of the extraction sites and effectively transport the fluids over long distances. Transmission pipelines are used to transport oil and gas over vast distances, sometimes spanning across countries or continents. Steel pipes are ideal for this purpose as they can handle high pressure, ensuring the efficient flow of fluids over long distances. These pipes are often buried underground or submerged in water to protect them from external elements and minimize the risk of damage. Distribution pipelines are responsible for delivering oil and gas to end-users, such as homes, businesses, and industrial facilities. Steel pipes are commonly used in these pipelines as they can handle the varying demand and pressure requirements of different consumers. These pipes are often smaller in diameter compared to transmission pipelines but still provide reliable and safe transportation of oil and gas to their final destinations. In addition to their strength and durability, steel pipes used in oil and gas pipeline transportation are also coated or lined with various materials to enhance their resistance to corrosion and minimize the risk of leaks. These protective coatings and linings ensure the longevity of the pipes and maintain the integrity of the transported fluids. Overall, steel pipes play a crucial role in the oil and gas industry by providing a reliable and efficient means of transporting oil and gas from production sites to processing facilities and ultimately to end-users. Their durability, strength, and resistance to corrosion make them an ideal choice for pipeline transportation in this industry.

Q: What is the purpose of galvanizing steel pipes?: The purpose of galvanizing steel pipes is to provide corrosion resistance and extend their lifespan.

Q: What is the maximum pressure that steel pipes can handle?: The maximum pressure that steel pipes can handle depends on various factors such as the grade of steel, pipe thickness, and diameter. However, in general, steel pipes can handle pressures ranging from a few hundred psi (pounds per square inch) to several thousand psi.

Q: What are the dimensions of steel pipes?: Steel pipes can have varying dimensions depending on specific requirements and industry standards. However, they generally adhere to standardized measurements for their outer diameter (OD), wall thickness, and length. The OD of steel pipes can range from small sizes, such as ¼ inch (6.35 mm) or ⅛ inch (3.175 mm), to larger sizes like 48 inches (1219.2 mm) or more for specialty applications. The wall thickness of steel pipes can also vary significantly, ranging from thin pipes with a few millimeters of thickness to thick pipes with several inches of thickness. Regarding length, standard steel pipes are typically produced in lengths of 20 feet (6.1 meters) or 40 feet (12.2 meters). However, custom lengths can also be manufactured to meet specific project requirements. It is important to note that these dimensions are only general examples and may not encompass all potential variations in steel pipe sizes. Therefore, consulting relevant industry standards and specifications is always recommended to determine the precise dimensions necessary for a specific application.

Q: Can steel pipes be used for underground chemical pipelines?: Indeed, underground chemical pipelines can utilize steel pipes. The chemical industry, among other industries, extensively employs steel pipes owing to their robustness, potency, and resistance to corrosion. To ensure suitability for underground chemical pipelines, it is crucial to select an appropriate steel grade that can withstand corrosion from the specific chemicals being transported. Furthermore, the resistance of steel pipes to chemical corrosion can be further augmented through the implementation of suitable coating and lining techniques. Regular inspection and maintenance are imperative to guarantee the integrity and safety of the underground chemical pipeline system.

Q: What is the difference between schedule 10 and schedule 40 steel pipes?: Schedule 10 and schedule 40 steel pipes are both commonly used in various industries for different purposes. The main difference lies in their wall thickness and pressure ratings. Schedule 10 steel pipes have a thinner wall compared to schedule 40 pipes. This means that schedule 10 pipes have a smaller internal diameter and can handle less pressure compared to schedule 40 pipes. The wall thickness of schedule 10 pipes is typically 0.109 inches, while schedule 40 pipes have a wall thickness of 0.154 inches. Due to their thinner walls, schedule 10 pipes are primarily used for low-pressure applications such as domestic water supply, drainage systems, and general plumbing. They are also commonly used for lightweight structures or where weight is a concern. On the other hand, schedule 40 pipes are designed to handle higher pressure and are often used in industrial applications, including oil and gas pipelines, chemical processing plants, and high-pressure fluid systems. The thicker walls of schedule 40 pipes provide them with increased strength and durability to withstand higher pressure and stress. In summary, the main difference between schedule 10 and schedule 40 steel pipes is their wall thickness and pressure ratings. Schedule 10 pipes have a thinner wall and are suitable for low-pressure applications, while schedule 40 pipes have a thicker wall and can handle higher pressure. It is important to choose the appropriate schedule based on the specific requirements and pressure limitations of the intended application.

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