CARBON STEEL PIPE FITTINGS ASTM A234 BEND FLANGE

CARBON STEEL PIPE FITTINGS ASTM A234 BEND FLANGE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 30000 m.t./month

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Specifications

1.we produce seamless steel pipe
2.size:48-219*4.5-45mm
3.ISO 9000 approved
4.Market:south/east Asia,Mid-east,South America

seamless steel pipe

Material J55 K55 N80 L80 P110.etc

Standard ASTM JIS

Usage conveying oil gas ,oil pipe line,pipe material collar,oil nature gas,

Packing wooden cases or wooden pallet ,export standard package

Others:Special design available according to requirement

Anti-corrosion available and high temperature resistence

Delivery time 30days

Payment term T/T L/C

Name		API oil casing pipe
Out Diameter		Wall thickness	Material	Thread	Length
in	mm
5 1/2	139.7mm	6.20	J55/K55/N80	LTC/STC/BTC	R2
		6.98
		7.72
		9.17
		10.54
6 5/8	168.28mm	7.32	J55/K55/N80	LTC/STC/BTC	R2
		8.94
		10.59
		12.06
		12.06
8 5/8	219.08	8.94	H40	S/L/B	9 5/8R2
			J55/K55	S/L/B
		10.6	L80	L/B
		12.7	L80 C95	L/B
		14.15	P110	L/B
9 5/8	244.48	13.84	J55 K55		R2
		15.11	L80	L/B
10 3/4	273.05	11.43	J55 K55	S/B/E	R2
		13.84	P110	S/B
		15.11	P110	S/B
11 3/4	298.45	12.19	J55 K55	S/B	R2
		10.96	J55 K55	S/B
13 3/8	339.72	12.19	J55 K55 L80	S/B	R2
		10.92	J55 K55	S/B
		13.06	L80	S/B

Coupling and thread can be required according to customer requirment

Q: What are the common applications of steel pipes in the water distribution system?: Steel pipes are commonly used in water distribution systems for various applications such as transporting water from treatment plants to distribution points, carrying water under high pressure, and providing a durable and long-lasting solution for underground water pipelines.

Q: How do steel pipes compare to other materials, such as PVC or copper?: Steel pipes are generally more durable and have a higher resistance to heat, pressure, and corrosion compared to PVC or copper pipes. They are commonly used for applications that require strength and longevity, such as in industrial settings or for transporting high-pressure fluids. However, steel pipes can be more expensive and heavier than PVC or copper, making them less suitable for certain residential or lightweight applications. Ultimately, the choice of material depends on the specific requirements and budget of the project.

Q: How are steel pipes used in the construction of industrial facilities?: Steel pipes are commonly used in the construction of industrial facilities for various purposes such as transporting fluids, gases, and steam, as well as providing structural support and carrying electrical wiring. They are durable, resistant to corrosion, and can withstand high pressure and temperature, making them ideal for industrial settings.

Q: What's the difference between stainless steel seamless tube and stainless steel welded pipe?: Stainless steel seamless steel tube is a kind of steel strip with hollow section and without seams.

Q: How are steel pipes protected against seismic activities?: Steel pipes can be protected against seismic activities through various measures such as using flexible joints, employing seismic bracing systems, and implementing proper installation techniques. Additionally, coating the pipes with corrosion-resistant materials and conducting regular inspections and maintenance can further enhance their protection against seismic events.

Q: What are the challenges faced in transporting steel pipes?: Some of the challenges faced in transporting steel pipes include their large size and weight, which can make them difficult to handle and transport. Additionally, their shape can make it challenging to secure them properly during transportation to prevent damage or accidents. The corrosive nature of steel pipes can also pose a challenge, as special precautions need to be taken to protect them from rust or other forms of damage during transportation. Finally, the cost of transportation can be a challenge, as steel pipes often require specialized equipment and vehicles, which can be expensive to rent or purchase.

Q: How do steel pipes perform in marine environments?: Steel pipes perform well in marine environments due to their high strength and corrosion resistance. The protective oxide layer formed on the surface of the steel helps prevent rust and deterioration caused by salty sea air and water. Additionally, steel pipes can withstand the high pressure and temperature fluctuations commonly found in marine applications, making them a reliable choice for transporting fluids and gases in offshore structures, ships, and other marine installations.

Q: What are the different types of steel pipe supports for seismic applications?: Some of the different types of steel pipe supports for seismic applications include sway braces, rigid braces, snubbers, and spring hangers.

Q: How do you calculate the pipe friction loss coefficient for steel pipes?: To calculate the pipe friction loss coefficient for steel pipes, you need to consider several factors. One of the most common methods used is the Darcy-Weisbach equation, which relates the frictional head loss in a pipe to the flow rate, pipe diameter, pipe length, fluid properties, and the pipe roughness coefficient. The Darcy-Weisbach equation is expressed as: hf = (f * L * V^2) / (2 * g * D) Where: hf is the head loss due to friction, f is the pipe friction factor, L is the pipe length, V is the fluid velocity, g is the acceleration due to gravity, and D is the pipe diameter. The pipe friction factor, f, is the key parameter that needs to be determined. For steel pipes, this factor depends on the pipe roughness coefficient, which represents the relative roughness of the pipe. The relative roughness is calculated by dividing the absolute roughness of the pipe surface by the pipe diameter. The pipe roughness coefficient can be obtained from various sources, such as manufacturer specifications, engineering handbooks, or experimental data. It is important to ensure that the roughness coefficient used matches the specific type and condition of the steel pipe being analyzed. Once you have the pipe roughness coefficient, you can use it to calculate the pipe friction factor using empirical correlations or charts. These correlations often involve Reynolds number, which is a dimensionless quantity that characterizes the flow regime. By substituting the obtained pipe friction factor into the Darcy-Weisbach equation, you can calculate the head loss due to friction for steel pipes. This value is essential in designing piping systems, determining pump requirements, or estimating energy consumption in fluid flow applications.

Q: How are steel pipes protected against rust?: Steel pipes are protected against rust through a variety of methods. One common method is by applying a protective coating to the pipes. This can be done by using a layer of paint, epoxy, or a corrosion-resistant coating such as zinc or galvanized coatings. These coatings act as a barrier between the steel and moisture, preventing the formation of rust. Another method of protecting steel pipes against rust is by using cathodic protection. This involves the use of sacrificial anodes, typically made of zinc or magnesium, which are attached to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves and preventing rust formation on the pipes. In addition to coatings and cathodic protection, steel pipes can also be protected against rust by using corrosion inhibitors. Corrosion inhibitors are chemicals that are added to the water or fluid flowing through the pipes. These chemicals form a protective film on the surface of the steel, inhibiting the corrosion process and preventing rust from forming. Regular maintenance and inspections are also crucial in protecting steel pipes against rust. Any signs of damage or wear on the protective coatings should be addressed promptly to prevent rust from developing. Additionally, ensuring that the pipes are properly cleaned and dried before applying any protective coatings can also help in enhancing their effectiveness. Overall, a combination of protective coatings, cathodic protection, corrosion inhibitors, and regular maintenance is employed to ensure that steel pipes are effectively protected against rust and corrosion, prolonging their lifespan and maintaining their structural integrity.

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