Seamless Black Steel Pipes API5L,GB,ASTM,ASME,DIN

Seamless Black Steel Pipes API5L,GB,ASTM,ASME,DIN System 1

Seamless Black Steel Pipes API5L,GB,ASTM,ASME,DIN

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 44 m.t.

Supply Capability:: 500 m.t./month

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Product Description:

1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD +1%/-1%

WT +12.5%/-10%

9.picture

Seamless Black Steel Pipes API5L,GB,ASTM,ASME,DIN

Q:Are steel pipes suitable for use in pharmaceutical industries?: Yes, steel pipes are suitable for use in pharmaceutical industries. They are commonly used in pharmaceutical manufacturing processes as they offer excellent corrosion resistance, durability, and cleanliness. Additionally, steel pipes can withstand high pressure and temperature conditions required for sterilization and the transportation of various pharmaceutical liquids and gases.

Q:What is the difference between steel pipes and copper-nickel pipes?: Steel pipes and copper-nickel pipes differ in terms of their composition and properties. While steel pipes are primarily made of steel, copper-nickel pipes are composed of a mixture of copper and nickel. This difference in composition leads to variations in their strength, corrosion resistance, and thermal conductivity. Steel pipes are generally stronger and more durable, making them suitable for high-pressure and heavy-duty applications. On the other hand, copper-nickel pipes have excellent corrosion resistance, particularly in marine environments, and exhibit good thermal conductivity, making them ideal for heat transfer applications. Ultimately, the choice between steel pipes and copper-nickel pipes depends on the specific requirements and conditions of the intended use.

Q:What are the different types of steel pipe bends for pipeline routing?: There are several types of steel pipe bends commonly used for pipeline routing, including 90-degree bends, 45-degree bends, and 180-degree bends. Additionally, there are long radius bends and short radius bends, which refer to the curvature of the bend. These different types of bends allow for flexibility in pipeline design and routing to accommodate various installation requirements and project constraints.

Q:Can steel pipes be used for air conditioning systems?: Yes, steel pipes can be used for air conditioning systems. Steel pipes are commonly used in air conditioning systems for their durability, strength, and resistance to corrosion. They can effectively transport refrigerant and withstand the high pressure and temperature conditions involved in air conditioning operations.

Q:How do you calculate the weight of a steel pipe?: In order to determine the weight of a steel pipe, one must possess knowledge of the pipe's dimensions, specifically the outer diameter (OD), wall thickness, and length. Initially, one must ascertain the cross-sectional area of the pipe. This can be accomplished by subtracting the inner diameter (ID) from the outer diameter (OD) and dividing the outcome by 2 to acquire the radius. Subsequently, the formula A = πr^2 can be employed to compute the area. Following this, it is necessary to multiply the cross-sectional area by the length of the pipe to obtain the volume. The formula for volume is V = A * L, where A denotes the cross-sectional area and L signifies the length. Lastly, to determine the weight of the steel pipe, one must multiply the volume by the density of steel. The density of steel generally falls around 7850 kilograms per cubic meter (kg/m^3) or 0.2836 pounds per cubic inch (lb/in^3). The formula for weight is W = V * ρ, where V represents the volume and ρ denotes the density of steel. It is crucial to note that if one is employing different units, a conversion is imperative to match the units of the density. For instance, if the length is in feet and the density is in pounds per cubic inch, the length must be converted to inches prior to conducting the calculations. Always remember to thoroughly verify your measurements and calculations to ensure precision.

Q:Are steel pipes suitable for underground installations?: Indeed, steel pipes prove to be a fitting option for underground installations. Their durability, strength, and resistance to corrosion have made them a widely utilized choice for such applications. Able to endure high pressure and extreme temperature fluctuations, steel pipes are well-suited for transporting a variety of substances underground, including water, gas, and oil. Moreover, their exceptional resistance to environmental elements such as moisture and chemicals, commonly encountered in underground environments, further enhances their suitability. By implementing appropriate coatings and cathodic protection systems, steel pipes can enjoy an extended lifespan and retain their integrity even under harsh underground conditions. Consequently, steel pipes emerge as a dependable and fitting selection for underground installations.

Q:What is the load-bearing capacity of steel pipes?: The load-bearing capacity of steel pipes depends on various factors such as the diameter, wall thickness, and grade of the steel used. Generally, steel pipes have high load-bearing capacity due to their inherent strength and durability. The load-bearing capacity can be determined through engineering calculations and testing methods. These calculations consider factors like the applied load, pipe dimensions, and the material properties of the steel. It is important to consult engineering standards and guidelines, as well as a structural engineer, to accurately determine the load-bearing capacity of specific steel pipes for a given application.

Q:How are steel pipes protected against rusting?: Steel pipes are protected against rusting through a process called corrosion protection. There are several methods employed to prevent rust formation on steel pipes, including: 1. Coatings: One common method is applying various coatings to the surface of the steel pipes. These coatings act as a barrier, preventing oxygen and moisture from reaching the metal surface and initiating the rusting process. Coating options include epoxy, polyethylene, zinc, or even a combination of these materials. 2. Galvanization: Galvanizing steel pipes involves immersing them in a bath of molten zinc. This process creates a protective layer of zinc on the surface of the pipes which acts as a sacrificial barrier. If any small areas of the pipe surface are exposed, the zinc coating will corrode instead of the steel, providing ongoing protection against rust. 3. Cathodic Protection: This method utilizes an electrical current to protect the steel pipes. By connecting the pipes to a sacrificial anode, usually made of zinc or magnesium, the anode will corrode instead of the steel pipes when exposed to moisture and oxygen. This process is commonly used in underground or underwater applications. 4. VCI (Vapor Corrosion Inhibitor) Technology: VCI technology involves the use of chemical compounds that release a vapor that protects the steel pipes from rusting. These compounds form a thin layer on the surface of the pipes, inhibiting the corrosion process by neutralizing oxygen and moisture. 5. Regular Maintenance: In addition to the above methods, regular inspection and maintenance are crucial to prevent rust formation on steel pipes. This includes cleaning the pipes, removing any accumulated debris or corrosive substances, and repairing any damaged coatings or protective layers. Overall, these methods of corrosion protection effectively safeguard steel pipes from rusting, ensuring their longevity and durability in various industrial, commercial, and residential applications.

Q:What is the difference between hot-rolled and cold-rolled steel pipes?: Hot-rolled steel pipes are produced at high temperatures and have a rougher surface finish. They are known for their flexibility and are often used in applications that require bending or shaping. On the other hand, cold-rolled steel pipes are produced at lower temperatures and undergo additional processing to achieve a smoother surface finish. They are generally stronger and more precise in dimensions, making them suitable for applications that require high precision and strength.

Q:How are steel pipes used in the manufacturing of scaffolding?: Steel pipes are commonly used in the manufacturing of scaffolding as they provide structural support and stability. These pipes are used to create the framework of the scaffolding structure, allowing workers to safely access and work at heights. The steel pipes are connected and secured together using couplers, providing a strong and reliable base for the scaffolding system.

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