CARBON STEEL PIPE FITTINGS ASTM A234 BEND 1''

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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 oil and gas industry?: Steel pipes are commonly used in the oil and gas industry for various applications such as drilling, transportation of crude oil and natural gas, and for constructing pipelines and storage tanks. They provide strength, durability, and resistance to corrosion, making them ideal for these critical operations.

Q: Are steel pipes suitable for use in coastal areas?: Yes, steel pipes are suitable for use in coastal areas. Steel is known for its durability and resistance to corrosion, which makes it a reliable choice for withstanding the harsh conditions of coastal regions, including exposure to saltwater and high levels of humidity. Additionally, steel pipes can be coated or galvanized to provide extra protection against corrosion, ensuring their longevity and performance in coastal environments.

Q: What are the common methods for repairing steel pipes?: Some common methods for repairing steel pipes include welding, pipe wrapping, pipe relining, and pipe bursting.

Q: How are steel pipes used in the oil and gas industry?: Steel pipes are widely used in the oil and gas industry for various purposes. They are primarily used for transporting and distributing oil and gas from extraction sites to refineries and end consumers. Steel pipes are also used in drilling operations, where they are utilized as casing and tubing to extract oil and gas from wells. Additionally, steel pipes are employed in the construction of storage tanks, pipelines, and other infrastructure required for the production, processing, and transportation of oil and gas. Overall, steel pipes play a crucial role in ensuring the efficient and safe operation of the oil and gas industry.

Q: What are the different threading options for steel pipes?: The different threading options for steel pipes include tapered thread, straight thread, and multiple thread options. Tapered threads are commonly used for pipes that carry fluids or gases under pressure, as they provide a tight seal. Straight threads are used for pipes that require a secure connection but do not need to be sealed tightly. Multiple thread options, such as double and triple threads, are used for high-pressure applications where a stronger connection is needed.

Q: How do you calculate the pipe pressure drop for steel pipes?: To determine the pressure drop in steel pipes, there are two equations that can be utilized: the Darcy-Weisbach equation and the Hazen-Williams equation. The Darcy-Weisbach equation, although more precise, necessitates a greater amount of information. It takes into consideration the diameter, length, roughness, fluid flow rate, as well as fluid properties like viscosity and density. The equation is expressed as: To calculate the pressure drop (ΔP), the following formula can be used: (f * L * ρ * V^2) / (2 * D) In this formula: - ΔP denotes the pressure drop - f represents the friction factor (which can be determined using Moody's chart or empirical equations such as the Colebrook-White equation) - L signifies the length of the pipe - ρ denotes the fluid density - V represents the fluid velocity - D signifies the pipe diameter On the other hand, the Hazen-Williams equation is a simplified version commonly employed for water flow calculations. Although less accurate, it is more user-friendly. The equation is expressed as: To calculate the pressure drop (ΔP), the following formula can be used: K * Q^1.85 / (C^1.85 * d^4.87) In this formula: - ΔP denotes the pressure drop - K signifies the Hazen-Williams coefficient (which relies on the pipe material and roughness) - Q represents the flow rate - C signifies the Hazen-Williams roughness coefficient - d denotes the pipe diameter It is crucial to note that these equations provide estimations of the pressure drop, and actual conditions may vary due to factors such as fittings, bends, and valves in the pipe system. Furthermore, consistency in unit usage (e.g., SI units or US customary units) is of utmost importance when employing these equations.

Q: Difference and application of seamless hot rolled pipe and cold drawn pipe in seamless steel tube: purpose2.1 seamless tubes are widely used. General purpose seamless tubes are rolled from plain carbon structural steel, low-alloy structural steel or alloy structural steel, with the most output and are used primarily as pipes or structural parts for conveying fluids2.2, divided into three kinds according to the supply of different uses: the supply of a, according to the chemical composition and mechanical properties; the supply of B, according to the mechanical properties; the supply of C, according to the hydraulic pressure test. According to a, the B class steel supply, such as for under fluid pressure, but also to the pressure test.2.3. Seamless tubes for special purposes include seamless tubes for boilers, seamless tubes for geology, and seamless pipes for petroleum use

Q: What are the different types of steel pipe valves?: There are several different types of steel pipe valves that are commonly used in various industries and applications. Here are some of the most common types: 1. Gate valves: These valves are designed to control the flow of fluid by lifting or lowering a gate or wedge that obstructs the flow path. They provide a tight seal when closed and are commonly used in applications that require a full flow or complete shut-off. 2. Globe valves: Globe valves have a globe-shaped body and a movable plug or disc that regulates the flow of fluid. They offer good throttling capabilities and are used in applications where precise control of flow is required. 3. Ball valves: Ball valves use a rotating ball with a hole in it to control the flow of fluid. When the hole is aligned with the pipe, the valve is fully open, and when the hole is perpendicular to the pipe, the valve is closed. Ball valves are durable, reliable, and commonly used in applications that require quick and easy shut-off. 4. Check valves: Check valves allow fluid to flow in only one direction and prevent backflow. They are often used to prevent damage to pumps, compressors, and other equipment by preventing reverse flow. 5. Butterfly valves: Butterfly valves have a disc that rotates within the pipe to control the flow of fluid. They are lightweight, compact, and offer a quick shut-off. Butterfly valves are commonly used in large-scale applications such as water treatment and HVAC systems. 6. Plug valves: Plug valves have a cylindrical or conical plug that rotates within the valve body to control flow. They are simple in design, easy to operate, and offer reliable shut-off capabilities. Plug valves are commonly used in applications that require frequent operation and high pressure ratings. 7. Diaphragm valves: Diaphragm valves use a flexible diaphragm to control the flow of fluid. When the diaphragm is pressed against the valve seat, the flow is blocked, and when the diaphragm is lifted, the flow is allowed. Diaphragm valves are commonly used in applications that require a sterile or hygienic environment. These are just a few examples of the different types of steel pipe valves available in the market. The choice of valve depends on the specific application requirements, such as flow rate, pressure, temperature, and the type of fluid being transported.

Q: Are steel pipes suitable for conveying fluids?: Steel pipes are well-suited for the transportation of fluids. They have been extensively utilized across various industries for numerous years due to their robustness, strength, and resistance to corrosion. These characteristics render steel pipes an optimal choice for the conveyance of fluids like water, oil, gas, and hazardous substances. Moreover, the sleek interior surface of steel pipes facilitates smooth flow and prevents blockages, thus making them appropriate for applications that necessitate uninterrupted and seamless fluid movement. Additionally, steel pipes can endure high-pressure and high-temperature conditions, enabling their use in both high and low-pressure fluid transmission systems. In summary, steel pipes are a dependable and efficient alternative for fluid conveyance in a wide array of industries, including oil and gas, water treatment, chemical processing, and many others.

Q: What are the safety precautions to follow when working with steel pipes?: To guarantee the safety of yourself and those around you while working with steel pipes, it is crucial to adhere to a number of safety measures. These measures encompass the following: 1. Personal Protective Equipment (PPE): It is imperative to always wear the appropriate PPE when dealing with steel pipes. This includes safety glasses, gloves, steel-toed boots, and a hard hat. By utilizing PPE, you can shield yourself from potential hazards such as flying debris, falling objects, and sharp edges. 2. Proper Lifting Techniques: Given that steel pipes can be heavy and unwieldy, it is essential to employ proper lifting techniques to avoid strain or injury. Remember to bend your knees, maintain a straight back, and utilize your legs to lift the pipes. If a pipe is too heavy to lift on your own, seek assistance or employ mechanical lifting equipment. 3. Secure Working Area: Ensure that the work area is tidy, well-organized, and devoid of tripping hazards. Keep the floor clear of tools, debris, and other obstructions that may lead to accidents. Additionally, establish barricades or cordons to prevent unauthorized access and guarantee the safety of others. 4. Use Proper Tools and Equipment: Employ the correct tools and equipment for the task at hand. This entails utilizing wrenches, pipe cutters, and clamps specifically designed for steel pipes. The usage of inappropriate tools can result in accidents, damage to the pipes, or faulty connections. 5. Proper Storage: Store steel pipes in a secure and organized manner to prevent them from falling or rolling onto individuals. Stack the pipes in a stable position and employ racks or supports to ensure they are not at risk of toppling over. 6. Secure Connections: When connecting steel pipes, ensure that the connections are adequately secured. This entails utilizing suitable fittings, tight fasteners, and adhering to the recommended torque specifications. Loose or improperly secured connections can lead to leaks, bursts, or other failures. 7. Proper Ventilation: If working in an enclosed space, ensure there is sufficient ventilation to prevent the accumulation of harmful gases or fumes. Welding or cutting steel pipes can release hazardous gases, so it is vital to ensure proper ventilation or employ respiratory protection if necessary. 8. Fire Safety: During welding or cutting processes, steel pipes can become extremely hot. Make sure to have fire extinguishers readily available and familiarize yourself with their usage. Remove any flammable materials from the work area and exercise caution around sparks or open flames. 9. Regular Inspections: Routinely inspect steel pipes for any signs of damage, such as cracks, rust, or degradation. Replace any damaged or compromised pipes to avoid potential failures or accidents. By adhering to these safety precautions, you can mitigate the risks associated with working with steel pipes and maintain a safe working environment. Always remember that safety should be the utmost priority.

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