High manufacturing accuracy Seamless Black Steel Pipes API5L,GB,ASTM,ASME

High manufacturing accuracy Seamless Black Steel Pipes API5L,GB,ASTM,ASME System 1

High manufacturing accuracy Seamless Black Steel Pipes API5L,GB,ASTM,ASME

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 22 m.t.

Supply Capability:: 333 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%

PICTURES:

High manufacturing accuracy Seamless Black Steel Pipes API5L,GB,ASTM,ASME

Q:How do you prevent steel pipes from freezing in cold climates?: One way to prevent steel pipes from freezing in cold climates is by insulating them with materials such as foam insulation or heat tape. This helps to maintain the temperature of the pipes and prevents them from freezing. Additionally, ensuring that all cracks or openings in the walls or foundation where the pipes are located are sealed can also help in preventing the pipes from freezing.

Q:What are the factors affecting the lifespan of steel pipes?: There are several factors that can affect the lifespan of steel pipes. 1. Corrosion: Corrosion is one of the primary factors that can significantly reduce the lifespan of steel pipes. Exposure to moisture, chemicals, and other corrosive elements can lead to rusting and degradation of the pipe material over time. 2. Environmental conditions: The environment in which the steel pipes are installed plays a crucial role in their lifespan. Extreme temperatures, humidity, and exposure to various weather conditions can accelerate the corrosion process and weaken the pipe structure. 3. Water quality: The quality of the water flowing through the steel pipes can also impact their lifespan. Water with high acidity or alkalinity levels, excessive chlorine, or other contaminants can cause corrosion and deterioration of the pipe material. 4. Installation quality: The way steel pipes are installed can affect their lifespan. Poor installation practices, such as inadequate support or incorrect alignment, can lead to stress points and structural weaknesses, making the pipes more prone to failure. 5. Maintenance and repair: Regular maintenance and timely repairs are crucial in maximizing the lifespan of steel pipes. Proper cleaning, inspection, and corrosion protection measures can help identify and address potential issues before they progress and cause significant damage. 6. Design and material quality: The design and quality of steel used in pipe manufacturing are important factors in determining their lifespan. High-quality steel with appropriate alloy composition and thickness provides better resistance to corrosion and mechanical stress, ensuring a longer lifespan. 7. Load and pressure: The load and pressure that steel pipes are subjected to can impact their durability. Excessive pressure or frequent variations in pressure can put stress on the pipe walls, leading to fatigue or failure over time. By considering and addressing these factors, it is possible to extend the lifespan of steel pipes and ensure their reliable performance over an extended period.

Q:What are the different types of steel pipe supports for thermal expansion?: There are several types of steel pipe supports for thermal expansion, including rigid supports, flexible supports, and guided supports. Rigid supports are typically used for straight pipe runs and provide a fixed point of support. Flexible supports, such as spring hangers or variable spring supports, allow for vertical movement of the pipe due to thermal expansion. Guided supports, on the other hand, restrict movement in all directions except axial movement, helping to maintain the alignment of the pipe during thermal expansion.

Q:What is the difference between steel pipes and fiberglass pipes?: Steel pipes and fiberglass pipes differ in their material composition and properties. Steel pipes are made of iron and carbon alloy, making them strong and durable. They are suitable for high-pressure applications and can withstand extreme temperatures. In contrast, fiberglass pipes are composed of glass fibers embedded in a resin matrix. They are lightweight, corrosion-resistant, and have excellent thermal insulation properties. Fiberglass pipes are commonly used in industries where corrosion or chemical resistance is required, and they are also more cost-effective for certain applications.

Q:Are steel pipes resistant to earthquakes?: Steel pipes are generally more resistant to earthquakes compared to other materials due to their strength and flexibility. However, their ability to withstand seismic events depends on various factors such as the design, installation, and support systems in place. Overall, steel pipes can provide a higher level of earthquake resistance, but proper engineering and construction practices are crucial to ensure their effectiveness.

Q:Can steel pipes be used for gas transmission pipelines?: Yes, steel pipes can be used for gas transmission pipelines. Steel is a commonly used material for gas pipelines due to its strength, durability, and resistance to corrosion. Additionally, steel pipes can withstand high pressure and temperature conditions, making them suitable for transporting natural gas over long distances.

Q:What are the common challenges faced during steel pipe installation?: Some common challenges faced during steel pipe installation include obtaining accurate measurements and ensuring proper alignment, dealing with obstructions or difficult terrain, managing the weight and size of the pipes, ensuring proper sealing and connections, and adhering to safety regulations and protocols.

Q:What are the different methods of pipe protection for steel pipes?: There are several methods of pipe protection for steel pipes. These include corrosion-resistant coatings such as epoxy or polyethylene, cathodic protection systems, which use sacrificial anodes or impressed current to prevent corrosion, wrapping the pipes with protective tape or shrink sleeves, and using corrosion inhibitors to prevent the formation of rust. Additionally, proper installation practices, regular inspections, and maintenance can also contribute to pipe protection.

Q:What are the advantages of using steel pipes in marine applications?: Using steel pipes in marine applications offers several benefits. Firstly, steel pipes possess exceptional durability and a high resistance to corrosion. This is crucial in marine settings where pipes are constantly exposed to saltwater, which can rapidly degrade materials. Steel pipes can withstand these harsh conditions and maintain their structural integrity for extended periods. Another advantage of utilizing steel pipes in marine applications is their strength. Steel is a robust and sturdy material that can endure high pressure and extreme conditions commonly encountered in marine operations. This makes steel pipes ideal for transporting fluids, such as water, oil, and gas, in marine environments. Moreover, steel pipes provide excellent fire resistance. In the event of a fire on a ship or offshore platform, steel pipes act as a reliable fire barrier, preventing the spread of flames and ensuring the safety of personnel and equipment. Furthermore, steel pipes are highly versatile and can be easily fabricated to meet specific requirements. They can be manufactured in various sizes, shapes, and thicknesses, allowing for customization to suit the particular needs of marine applications. Steel pipes can also be easily welded together, creating a seamless and leak-proof system. Lastly, steel pipes prove to be cost-effective in the long run. Although the initial investment may be higher compared to other materials, the durability and longevity of steel pipes make them a cost-efficient choice. With minimal maintenance and a long lifespan, steel pipes reduce the need for frequent replacements, resulting in significant cost savings over time. In conclusion, the advantages of using steel pipes in marine applications include their durability, corrosion resistance, strength, fire resistance, versatility, and cost-effectiveness. These factors make steel pipes a reliable and efficient choice for various marine operations, ensuring the safe and efficient transport of fluids in harsh marine environments.

Q:Does the seamless steel pipe need rust removal?: Spray (throw) shoot derusting by the high-power motor to drive the spray shot (impeller) blade rotating speed, the steel grit, steel shot, iron wire, minerals and other abrasive jet for 20# seamless steel tube surface under the action of centrifugal force (left) radiation treatment, not only can completely remove the dirt and rust, oxide, and the role of 20# seamless steel in abrasive blast and friction force, can achieve the required uniform roughness.Not only can the physical adsorption effect on the surface of the pipe be increased, but also the mechanical adhesion of the anticorrosive layer to the pipe surface can be enhanced. Therefore, spraying (throwing) shot derusting is an ideal method of rust prevention for pipeline corrosion protection. Generally speaking, shot peening (sand) derusting is mainly used in the inner surface treatment of tubes, shot blasting (sand) derusting is mainly used for the outer surface treatment of tubes.

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