Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X 80 CNBM

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X 80 CNBM System 1

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X 80 CNBM System 2

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X 80 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:	2.0 - 85 mm	Section Shape:	Round	Outer Diameter:	17 - 914.4 mm
		Secondary Or Not:	Non-secondary	Application:	Oil Pipe
Technique:	Hot Rolled	Certification:	API	Surface Treatment:	VARNISH PAITING
Special Pipe:	API Pipe	Alloy Or Not:	Non-alloy	END:	PLAIN,BEVELED OR THREADED
Grade:	10#,20#,16Mn,A106(B,C),A210,A335 P5,A335 P91,A53(A,B),API J55,API K55,Q195,Q235,Q345,St37,St52,10#-45#,A53-A369,API J55-API P110,Q195-Q345,ST35-ST52	Standard:	API 5CT,API 5L,ASME B36.19M-2004,ASTM A106-2006,ASTM A179-1990,ASTM A182-2001,ASTM A53-2007,BS 1387,DIN 1629/3,DIN EN 10216-1-2004,GB 5310-1995,GB/T 3091-2001,GB/T 8162-1999,GB/T 8163-1999,JIS G3454-2007,API,ASTM,BS,DIN,GB,JIS

Packaging & Delivery

Packaging Detail:

standard packing suitable shipping by sea.fixed length as customers' requirements, or SRL or DRL. Varnish, painting or galvanized, or FBE ,2PE,3PE 3pp coating,bevelled/plain/threaded ends with caps, packing in bundle (OD smaller than 141.3mm) big sizes packing in loose, marking as required. Shipped by sea,by air,by train . or some samples shipped by DHL,EMS,TNT,FEDEX ect. Length shorter than 5.85m should be shipped by 20' container, 5.85-12m shipped by 40' container.

Delivery Detail:

7-35 days after advance payment

Product Description

Seamless steel pipes, a large number of used pipes conveying fluids, such as transport oil, natural gas, gas, water pipes and some solid materials, and so on. Compared to other steel and solid steel bar, the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle rack and construction using steel scaffolding ring with steel pipe manufacturing parts, can improve material utilization, simplify the manufacturing process, saving material and machining time, such as bearing rings, jack sets, has been widely used to manufacture steel. Steel or a variety of conventional weapons indispensable material, gun barrels to make steel. Steel shapes in different cross-sectional area can be divided into tube and shaped tubes. As in the perimeter of equal conditions, the largest area of a circle with a circular tube can carry more fluid. In addition, the circular cross section to withstand internal or external radial pressure, the force is uniform, so the vast majority of the pipe is pipe.

Q: How do steel pipes compare to ductile iron pipes?: Steel pipes and ductile iron pipes are utilized in various applications, but they possess distinct differences in terms of their properties and advantages. 1. Strength and Durability: Steel pipes exhibit greater strength and durability compared to ductile iron pipes. Steel possesses a higher tensile strength, making it less susceptible to cracking or breaking under pressure or external forces. Conversely, ductile iron possesses a lower tensile strength but boasts better impact resistance than steel. 2. Corrosion Resistance: Steel pipes are susceptible to corrosion, especially when exposed to moisture or chemicals. Nevertheless, protective measures such as applying coatings or employing corrosion-resistant alloys can safeguard against this. Ductile iron pipes, while inherently more corrosion-resistant than regular cast iron, may still necessitate external protection to prevent rusting and degradation. 3. Flexibility: Ductile iron pipes offer greater flexibility than steel pipes. They can endure certain degrees of bending and deflection without fracturing, making them suitable for applications where ground movement or shifting may occur. Conversely, steel pipes are less flexible and more rigid, rendering them better suited for straight runs or applications with minimal movement. 4. Cost: Generally, ductile iron pipes are more cost-effective than steel pipes. The manufacturing process for ductile iron is easier and cheaper, resulting in lower production costs. However, steel pipes may possess a longer lifespan, requiring fewer replacements over time, thereby offsetting the initial cost difference. 5. Installation: Steel pipes are lighter and easier to handle during installation compared to ductile iron pipes, which can be heavy and bulky. The lighter weight of steel pipes can reduce labor and transportation costs. Moreover, steel pipes can be welded, allowing for more flexible installation options, while ductile iron pipes are typically joined using mechanical couplings or flanged connections. In conclusion, steel pipes offer superior strength and durability, while ductile iron pipes provide better flexibility and cost-effectiveness. The selection between the two depends on the specific requirements of the application, including factors such as corrosion resistance, expected loads, installation conditions, and budget constraints.

Q: What are the different methods of repairing steel pipes?: There are several methods of repairing steel pipes including welding, pipe wrapping, epoxy lining, and pipe bursting. Welding involves joining the broken sections of the pipe using heat and a filler material. Pipe wrapping involves applying a layer of epoxy or fiberglass wrap around the damaged area to reinforce and seal it. Epoxy lining involves applying a coating of epoxy resin on the interior of the pipe to prevent corrosion and restore structural integrity. Pipe bursting is a more invasive method where a new pipe is pulled through the existing damaged pipe, breaking it apart and replacing it in the process.

Q: How are steel pipes used in water transportation?: Steel pipes are commonly used in water transportation as they are durable, strong, and resistant to corrosion. These pipes are used to transport water from sources such as reservoirs, treatment plants, or wells to different areas for domestic, industrial, or agricultural purposes. Steel pipes ensure the safe and efficient flow of water, preventing leakage and contamination, and are often buried underground or used in above-ground pipelines for long-distance water transportation.

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: Are steel pipes suitable for underground gas lines?: Yes, steel pipes are suitable for underground gas lines. Steel pipes are known for their strength and durability, making them a reliable choice for underground gas distribution. They have high resistance to external factors such as corrosion and impact, which is important for maintaining the integrity of the gas system. Additionally, steel pipes can withstand high pressure and temperature variations, ensuring the safe and efficient transportation of gas underground. However, it is important to note that proper installation techniques, such as corrosion protection measures, should be followed to ensure the longevity of the steel pipes and prevent any potential leaks or accidents.

Q: What are the different types of steel pipe fittings for gas pipelines?: There are several types of steel pipe fittings commonly used for gas pipelines, including elbows, tees, reducers, flanges, and couplings. Elbows are used to change the direction of the pipeline, while tees are used to create branch connections. Reducers are used to connect pipes of different sizes, and flanges are used for connecting pipes with valves or other equipment. Couplings are used to join two pipes together.

Q: What is the difference between steel pipes and fiberglass pipes?: Steel pipes are made from a durable alloy of iron and carbon, while fiberglass pipes are composed of a reinforced plastic material. The main difference is that steel pipes are stronger and more resistant to high temperatures and pressure, making them suitable for heavy-duty applications such as oil and gas pipelines. On the other hand, fiberglass pipes are lighter, corrosion-resistant, and have better thermal insulation properties, making them ideal for industries like chemical processing and wastewater treatment.

Q: How are steel pipes used in the construction of coal-fired power plants?: Steel pipes are commonly used in the construction of coal-fired power plants for various purposes. They are utilized for transporting coal and other fuels, as well as for carrying water and steam in the power generation process. Steel pipes are also used in the construction of the plant's cooling system, helping to circulate water and dissipate heat. Additionally, they are employed in the construction of the plant's exhaust system, facilitating the removal of combustion byproducts. In summary, steel pipes play a crucial role in the infrastructure of coal-fired power plants, enabling efficient fuel transportation, heat exchange, and waste management.

Q: How are steel pipes used in the construction of water treatment plants?: Steel pipes are widely used in the construction of water treatment plants due to their numerous advantages and suitability for this specific application. These pipes are utilized in various ways to ensure the efficient and reliable functioning of water treatment facilities. Firstly, steel pipes are commonly used in the transportation of water from its source to the treatment plant. They are highly durable and can withstand high pressure, ensuring the safe and secure delivery of water over long distances. Steel pipes are also resistant to corrosion, which is crucial in preventing contamination of the water supply. Within the treatment plant, steel pipes are used in the distribution system to transport water to different treatment processes. They are often laid underground or within the facility's infrastructure, ensuring a seamless flow of water between different treatment units. Steel pipes are known for their high strength and structural integrity, making them suitable for this purpose. Furthermore, steel pipes are used in the construction of various water treatment equipment. For instance, they are utilized in the construction of sedimentation tanks, where water is allowed to settle, and impurities are removed. Steel pipes are also used in the construction of filtration systems, where water passes through different layers of filters to remove contaminants. Another important application of steel pipes in water treatment plants is in the construction of pumping stations. These stations are responsible for maintaining the water flow throughout the treatment process. Steel pipes are employed in the design and construction of the pumping systems to ensure the efficient movement of water between different stages of treatment. In summary, steel pipes play a crucial role in the construction of water treatment plants. They are used for the transportation of water, distribution within the facility, construction of treatment equipment, and in the design of pumping stations. Their durability, resistance to corrosion, and high strength make them an ideal choice for this critical infrastructure.

Q: How do you calculate the pipe friction loss coefficient for steel pipes?: The pipe friction loss coefficient for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, and fluid velocity. The coefficient can be determined by dividing the friction factor (obtained from Moody's chart or using empirical equations) by the Reynolds number (calculated using the fluid properties and pipe dimensions).

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