Seamless steel pipe

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: -

Supply Capability:: 20000ton m.t./month

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Product Descriptions

Product name: Seamless steel pipe

Outside Diameter : 1/2" -24"

Walk Thickness: 5-30mm(SCH 10---SCH XXS)

Length: 5.8m, 6m, 11.8m,12m or as customer's requirements

Standard: ASME , ANSI, DIN,GB8162/8163,GB 3087, JIS, API 5L ,EN10216

Material: ASTM A 179 ,A106Gr B/C,API5L Gr.B, X42,X46,X52,X56,X60,X70, API 5CT J55, K55 ,N80 , L80,P110,A335 P91,A335P92,
A335P11 , A335P22,A335P5,A335P9,A691Gr11,34Mn6, 20G,20#, 10#,

Process: Hot rolled and Cold drawn

Package:Painting ,Bevel End ,with plastic cap ,in bundles

Certification: ISO9001,ASME , API 5L, CE,CCS

Application : It is widely used in mechanical processing,Petroleum,chemical, transportation ,gas, water,shipbuilding and construction industry

Third Party Inspection:OMIC,SGS,BV ,TUV

Loading Port: Tianjin xingang /Shanghai/Qingdao

Payment Term: L/C，T/T

Minimum Order : 10 tons or negotiation

Supply Ability:20000 T/Month

Q: What are the common applications of steel pipes in the water distribution system?: The common applications of steel pipes in the water distribution system include carrying potable water from the water treatment plants to homes and businesses, transporting water for irrigation purposes, and facilitating the flow of water in industrial processes. Steel pipes are often preferred due to their durability, resistance to corrosion, and ability to handle high water pressure.

Q: What are the factors to consider when designing a steel pipe system?: To ensure the functionality, durability, and efficiency of a steel pipe system, several factors must be taken into account during the design process: 1. It is crucial to determine the maximum pressure and temperature the system will be exposed to. This information is essential for selecting the appropriate pipe material, thickness, and jointing method to withstand the system's operating conditions. 2. The selection of the right material for the steel pipes is important. Factors such as corrosion resistance, strength, and cost should be considered. Common materials include carbon steel, stainless steel, and alloy steel. 3. Calculating the adequate pipe size and wall thickness is essential to ensure the required flow rate and pressure drop within the system. The pipe size directly affects the system's efficiency and must be chosen based on the anticipated flow rates and pressure losses. 4. Proper support and anchoring are critical to prevent sagging, movement, and stress on the steel pipe system. The design should take into account the weight of the pipes, the fluid being transported, and any external forces acting on the system. 5. Expansion joints or loops should be incorporated to allow for thermal growth and contraction, preventing damage and distortion caused by temperature variations. 6. Understanding the properties of the fluid being transported, such as corrosiveness, viscosity, and potential for sedimentation or scaling, is important in selecting the appropriate pipe material and protective coatings or linings. 7. Consideration should be given to the accessibility of the system for installation, inspection, and maintenance purposes. The design should include proper access points, valves, and fittings to facilitate easy maintenance and repairs. 8. Environmental factors such as extreme temperatures, humidity, or corrosive substances should be taken into account when selecting the pipe material, protective coatings, and insulation. 9. Compliance with industry standards, codes, and regulations is essential. The design should adhere to safety guidelines and applicable building codes to ensure the integrity and longevity of the pipe system. 10. The overall cost of the steel pipe system, including material, installation, maintenance, and energy consumption, should be considered. Balancing cost-effectiveness with performance requirements is crucial in achieving an efficient and economical design. By considering these factors, engineers and designers can create a steel pipe system that is suitable for its intended purpose, ensuring its longevity, reliability, and safety.

Q: Can steel pipes be used for underground fuel pipelines?: Yes, steel pipes can be used for underground fuel pipelines. Steel pipes are commonly used for underground fuel pipelines due to their strength, durability, and resistance to corrosion, making them suitable for transporting fuel safely and efficiently.

Q: How do you determine the maximum allowable stress for steel pipes?: To determine the maximum allowable stress for steel pipes, several factors need to be considered. These factors include the type of steel, the pipe's dimensions, and the operating conditions under which the pipe will be used. Firstly, the type of steel plays a crucial role in determining the maximum allowable stress. Different grades of steel have varying mechanical properties, including yield strength, tensile strength, and elongation. These properties define the material's ability to withstand stress before deformation or failure. Therefore, understanding the specific grade of steel used in the pipes is vital in determining the maximum allowable stress. Secondly, the dimensions of the pipe are essential. The outer diameter, wall thickness, and length all influence the pipe's strength and ability to handle stress. By calculating the cross-sectional area and moment of inertia, engineers can determine the pipe's resistance to bending and axial stresses. These calculations, along with the material properties, help establish the maximum allowable stress. Lastly, the operating conditions under which the pipe will be subjected to are critical. Factors such as temperature, pressure, and the presence of corrosive substances can significantly impact a steel pipe's maximum allowable stress. Elevated temperatures can affect the steel's mechanical properties, while high pressures can induce additional stress. The presence of corrosive substances can lead to material degradation and decrease the pipe's strength. Considering these operational factors is crucial in determining the maximum allowable stress. To sum up, determining the maximum allowable stress for steel pipes involves considering the specific grade of steel, the pipe's dimensions, and the operating conditions. By analyzing these factors, engineers can ensure that the steel pipe is designed and used within its safe stress limits.

Q: Can steel pipes be used for transportation of hazardous materials?: Steel pipes can indeed be used for the transportation of hazardous materials. Steel is known for its strength, durability, and resistance to corrosion, making it suitable for handling and transporting a wide range of hazardous substances. This includes flammable liquids, toxic chemicals, and other dangerous materials. Steel pipes used for the transportation of hazardous materials are often specially designed and constructed to meet stringent safety regulations and industry standards. They are typically made from high-quality steel alloys and undergo rigorous testing to ensure their integrity and resistance to leaks or ruptures. Furthermore, steel pipes can be manufactured with additional protective coatings or linings to provide an extra layer of security and prevent any potential reactions between the hazardous material and the steel. These coatings can also help to minimize the risk of corrosion and extend the lifespan of the pipes. Overall, steel pipes have a proven track record in the transportation of hazardous materials due to their inherent strength, durability, and ability to withstand the harsh conditions often encountered during transportation. However, it is crucial to follow proper handling, storage, and transportation protocols to ensure the safety of both the materials being transported and the individuals involved in the process.

Q: Are steel pipes suitable for underground cable protection?: Yes, steel pipes are suitable for underground cable protection. Steel pipes provide excellent durability and strength, making them ideal for protecting cables from external factors such as physical damage, moisture, and corrosion. They are able to withstand the weight of the soil and any potential pressure from above, ensuring the cables remain secure and protected. Additionally, steel pipes can be easily welded or connected to create a continuous and seamless conduit, further enhancing their effectiveness in underground cable protection.

Q: What is the maximum allowable pressure for steel pipes?: The maximum allowable pressure for steel pipes depends on various factors such as the type of steel used, the diameter and thickness of the pipe, and the specific application or industry requirements. The American Society of Mechanical Engineers (ASME) provides guidelines and standards for pressure vessel and piping design, including the determination of maximum allowable pressure. ASME B31.1 and B31.3 are widely used codes for power piping and process piping respectively. These codes specify the design criteria for various materials, including steel, and provide formulas and charts to calculate the maximum allowable pressure for different pipe sizes and wall thicknesses. The maximum allowable pressure is typically determined based on the pipe's ability to withstand internal pressure without causing any permanent deformation or failure. It is important to note that the maximum allowable pressure for steel pipes may also be influenced by other factors such as temperature, corrosion, and the presence of any external loads or stresses. Therefore, it is essential to consult the relevant codes, standards, and engineering calculations specific to the application to ensure the safe and reliable operation of steel pipes under the given conditions.

Q: What are the factors affecting the durability of steel pipes?: The factors affecting the durability of steel pipes include corrosion, temperature, pressure, mechanical stress, and the quality of the protective coatings or linings applied to the pipes. Additionally, the composition and purity of the steel used in the pipes, as well as the design and construction of the pipeline system, can also impact its durability.

Q: How are steel pipes protected during transportation?: Steel pipes are typically protected during transportation through a variety of means such as wrapping them with protective coatings, using plastic or metal caps to cover the ends, and securing them with straps or bands to prevent any movement or damage. Additionally, they may be placed in crates or on pallets and secured with stretch film or shrink wrap for added protection.

Q: What is the difference between steel pipes and concrete-lined pipes?: The main difference between steel pipes and concrete-lined pipes lies in their composition and protective features. Steel pipes are typically made entirely of steel, providing strength and durability. On the other hand, concrete-lined pipes consist of a steel pipe coated with a layer of concrete. This lining offers additional protection against corrosion and abrasion. While steel pipes are more suitable for high-pressure applications and offer better resistance to external factors, concrete-lined pipes are commonly used in wastewater systems to prevent corrosion and extend the lifespan of the pipe.

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