Schedule 40 Seamless Carbon Steel Pipe API K55 CNBM

Schedule 40 Seamless Carbon Steel Pipe API K55 CNBM System 1

Schedule 40 Seamless Carbon Steel Pipe API K55 CNBM

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 30 pc/month

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Quick Details

Thickness:	1.73 - 59.54 mm	Section Shape:	Round	Outer Diameter:	10.3 - 914.4 mm
		Secondary Or Not:	Non-secondary	Application:	Fluid Pipe
Technique:	Hot Rolled	Certification:	API	Surface Treatment:	Galvanized,vanish covering, black painting, galvenized ect.
Special Pipe:	API Pipe	Alloy Or Not:	Non-alloy	Length:	5-12m as per customer's requirements
SCH:	SCH10~160, STD, XS & XXS	Payment Terms:	L/C T/T	Supply Ability:	5000 Ton/Tons per Week
Product:	pipe prices	Grade:	10#,20#,45#,A106(B,C),A53(A,B),12Cr1MoV,12Cr1MoVG,12Cr2Mo,13CrMo44,13CrMo45,15CrMo,15CrMoG,St52,St52.4,10#-45#,A53-A369,Cr-Mo alloy,ST35-ST52	Standard:	API 5CT,API 5L,ASTM A106-2006,ASTM A53-2007,DIN 17175,GB 3087-1999,GB 5130,GB 6479-2000,GB 9948-2006,GB/T 17396-1998,GB/T 5312-1999,GB/T 8162-1999,GB/T 8163-1999,API,ASTM,DIN,GB

Packaging & Delivery

Packaging Detail:	By bundles, seaworthy wooden cases, steel framed cases, and simple packaging or according to the demand of the customers.
Delivery Detail:	within 5-15 days

Specifications

1.pipe prices
2.Supply Ability:5000 Tons per Week
3.Payment Terms:L/C T/T

High quality Carbon steel pipe, Best pipe prices

1) Application: Overheat pipe for low and mediumpressure boiler,boiling water pipe, locomotive smoke pipe(big and small),Carry gas ,water or oil in the industries of petroleum and natural gas etc
2) Materials: 10#, 20#, 45#, 15CrMo, 12Cr1MoV, 13CrMo44, 12Cr2Mo, 13CrMo45, 12Cr1MoVG, 15CrMoG, API J55, API K55, API N80, API L80, API P110

3)Pipe according to standard: GB 3087-1999, GB/T 8163-1999, GB/T 8162-1999, GB 9948-2006, GB/T 17396-1998, GB/T 5312-1999, GB 6479-2000, GB 5130, DIN 17175, API 5CT, API 5L .

4)Packing: By bundles, seaworthy wooden cases, steel framed cases, and simple packaging or according to the demand of the customers.

Technical Parameters of Seamless Steel Pipe

schedule 40 seamless carbon steel pipe

Q: What is the maximum diameter of steel pipes?: The maximum diameter of steel pipes can vary depending on the specific manufacturing capabilities, but generally, it can range from a few inches to several feet.

Q: Can steel pipes be used in earthquake-prone areas?: Indeed, in areas prone to earthquakes, steel pipes have the potential to be employed. Steel, as a durable and sturdy material, possesses the capacity to endure the forces generated during an earthquake. The malleability and pliability of steel facilitate the absorption and dissipation of seismic wave energy, thereby decreasing the likelihood of structural failure. Furthermore, the ability to weld steel pipes enables the construction of resilient and earthquake-resistant edifices. Nevertheless, it is crucial to adhere to appropriate engineering and construction practices to guarantee the proper installation and connection of steel pipes, thereby maximizing their capacity to withstand earthquakes. Additionally, it is imperative to consider local building codes and regulations to ensure compliance and safety in earthquake-prone regions.

Q: Can steel pipes be used for geothermal heating systems?: Yes, steel pipes can be used for geothermal heating systems. Steel pipes are commonly used in the construction of geothermal systems due to their durability, high heat transfer capabilities, and resistance to corrosion. They are capable of withstanding the high temperatures and pressure associated with geothermal heating systems, making them an ideal choice for transporting and distributing the geothermal fluid.

Q: How do you calculate the pipe head loss for steel pipes?: To calculate the pipe head loss for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the head loss (hL) to the flow rate (Q), pipe diameter (D), pipe length (L), fluid density (ρ), fluid velocity (V), and a friction factor (f). The formula is as follows: hL = (f * (L/D) * (V^2))/(2g) Where: - hL is the head loss (measured in meters) - f is the friction factor (dimensionless) - L is the pipe length (measured in meters) - D is the pipe diameter (measured in meters) - V is the fluid velocity (measured in meters per second) - g is the acceleration due to gravity (usually taken as 9.81 m/s^2) The friction factor (f) depends on the Reynolds number (Re) of the flow, which is a dimensionless quantity representing the ratio of inertial forces to viscous forces. The Reynolds number can be calculated as: Re = (ρ * V * D) / μ Where: - Re is the Reynolds number (dimensionless) - ρ is the fluid density (measured in kg/m^3) - V is the fluid velocity (measured in meters per second) - D is the pipe diameter (measured in meters) - μ is the dynamic viscosity of the fluid (measured in Pa·s or N·s/m^2) The friction factor (f) can be obtained from empirical correlations or from Moody's diagram, which relates it to the Reynolds number and the relative roughness of the pipe surface. By substituting the calculated friction factor (f) and other known values into the Darcy-Weisbach equation, you can determine the head loss in the steel pipe. It is important to note that the head loss is a measure of energy loss due to friction and other factors, and it is typically expressed in terms of pressure drop or height difference.

Q: How are steel pipes used in the construction of underground parking structures?: Steel pipes are commonly used in the construction of underground parking structures for various purposes such as drainage systems, ventilation, plumbing, and structural support. The pipes are utilized to facilitate the efficient flow of water and sewage, provide ventilation to ensure air circulation and remove harmful gases, supply water to different areas of the structure, and offer stability and strength to the overall construction.

Q: What are the common methods for repairing steel pipes?: There are several common methods for repairing steel pipes, depending on the nature and extent of the damage. One common method is welding, which involves melting the damaged area and fusing it with a new piece of steel. This method is often used for small cracks or holes in the pipe. Welding can be done using various techniques such as shielded metal arc welding (SMAW), gas metal arc welding (GMAW), or tungsten inert gas (TIG) welding. Another method is pipe wrapping or bandaging, which involves wrapping a layer of adhesive tape or resin-soaked fiberglass around the damaged section of the pipe. This method is suitable for small leaks or corrosion spots and provides a temporary fix until a more permanent solution can be implemented. If the damage is extensive or the pipe is severely corroded, pipe lining or relining may be necessary. This involves inserting a new pipe liner inside the existing one, effectively creating a new pipe within the old one. This method can be done using various materials such as epoxy, polyethylene, or cured-in-place pipe (CIPP). Pipe lining is commonly used for larger diameter pipes or when replacement is not feasible. In some cases, pipe clamps or sleeves can be employed to repair minor leaks or cracks. These devices are designed to be clamped around the damaged section and provide a temporary or permanent solution depending on the severity of the damage. Ultimately, the choice of repair method depends on factors such as the extent of damage, accessibility of the damaged area, budget constraints, and the long-term durability required. It is advisable to consult with a professional pipe repair specialist to assess the specific situation and determine the most suitable method for repairing steel pipes.

Q: Are steel pipes resistant to UV radiation?: Generally, steel pipes have resistance to UV radiation. UV radiation is known to cause damage to materials over time, resulting in fading, discoloration, and degradation. However, steel pipes usually have protective layers, such as paint or galvanization, that help shield them from UV radiation. These coatings act as a barrier, preventing direct exposure of the steel to UV rays and minimizing potential damage. Furthermore, steel's inherent properties, including strength and durability, make it less susceptible to the effects of UV radiation compared to materials like plastics or rubber. Nevertheless, it is important to note that prolonged exposure to intense UV radiation can still have some impact on steel pipes, such as slight discoloration or surface degradation. To ensure the continued performance and longevity of steel pipes in outdoor or UV-exposed environments, regular maintenance and inspection are recommended.

Q: Are steel pipes suitable for potable water applications?: Yes, steel pipes are suitable for potable water applications. Steel pipes are commonly used for transporting water in various industries and municipal water systems. They are known for their durability, strength, and resistance to corrosion, making them a reliable choice for potable water systems. Steel pipes also have the advantage of being able to withstand high pressure and temperature conditions, making them suitable for both hot and cold water applications. Additionally, steel pipes can be easily welded, ensuring leak-free connections. However, it is important to note that the quality of the steel used and proper maintenance are crucial factors in ensuring the safety and suitability of steel pipes for potable water applications. Regular inspection and maintenance should be done to prevent corrosion and ensure the integrity of the pipes.

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: What is the impact resistance of steel pipes?: Steel pipes have a high level of impact resistance thanks to the natural properties of steel. Steel, known for its strength and durability, can endure substantial external forces and impacts without deforming or breaking. The impact resistance of steel pipes is further improved by their construction and design. Various manufacturing techniques, such as seamless or welded construction, are used to create steel pipes, ensuring uniformity and strength throughout the structure. This construction process eliminates weak points or seams that could compromise the pipe's impact resistance. Additionally, steel pipes can be customized to meet specific impact resistance requirements based on their intended use. Different grades and types of steel can be utilized to achieve varying levels of impact resistance, allowing for customization to suit different industries and environments. The excellent impact resistance of steel pipes is particularly advantageous in industries such as construction, oil and gas, and transportation. These industries subject pipes to heavy loads, pressure, and potential impacts. Steel pipes can withstand these harsh conditions, making them a dependable choice for a wide range of applications. To summarize, steel pipes have outstanding impact resistance due to the inherent strength and durability of steel, as well as the construction techniques employed during manufacturing. Steel pipes can withstand significant external forces and impacts, making them a reliable and sturdy option for various industries and applications.

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