CARBON STEEL PIPE FITTINGS ASTM A234 FLANGE 18'' 24'' 26''

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 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 is the difference between steel pipes and copper-nickel pipes?: Steel pipes and copper-nickel pipes differ in terms of their composition and properties. While steel pipes are primarily made of steel, copper-nickel pipes are composed of a mixture of copper and nickel. This difference in composition leads to variations in their strength, corrosion resistance, and thermal conductivity. Steel pipes are generally stronger and more durable, making them suitable for high-pressure and heavy-duty applications. On the other hand, copper-nickel pipes have excellent corrosion resistance, particularly in marine environments, and exhibit good thermal conductivity, making them ideal for heat transfer applications. Ultimately, the choice between steel pipes and copper-nickel pipes depends on the specific requirements and conditions of the intended use.

Q: How do you prevent freezing in steel pipes during cold weather?: To prevent freezing in steel pipes during cold weather, there are several measures that can be taken: 1. Insulate the pipes: Insulation is an effective way to protect steel pipes from freezing. Use insulation sleeves or wraps to cover the pipes, especially in areas where they are exposed to cold temperatures. Insulation helps retain heat and prevents the pipes from reaching freezing temperatures. 2. Seal any air leaks: Check for any gaps or openings around the pipes where cold air can enter. Use caulking or weatherstripping to seal these gaps and prevent cold air from reaching the pipes. 3. Maintain a consistent temperature: Ensure that the area where the pipes are located is adequately heated and insulated. Keeping the temperature above freezing will help prevent the pipes from freezing. If the pipes are exposed to extremely low temperatures, consider using heat tape or pipe heating cables to provide additional warmth. 4. Allow water to flow: Running a small, continuous trickle of water through the pipes can help prevent freezing. The flowing water generates heat and inhibits the formation of ice within the pipes. However, this method should only be used as a last resort, as it can waste water. 5. Drain the pipes: If the steel pipes are in an area that is not regularly used or if freezing weather is expected, it may be advisable to drain the pipes completely. Turn off the water supply and open all faucets to allow the water to drain out. This eliminates any standing water that could freeze and cause the pipes to burst. It is important to note that prevention is key, as frozen steel pipes can lead to costly damages and water leaks. By implementing these measures, you can protect your steel pipes and ensure they remain functional during cold weather.

Q: How are steel pipes graded?: Steel pipes are graded based on various factors such as the composition of steel, manufacturing process, and physical properties like strength, durability, and corrosion resistance. These grades are assigned based on internationally recognized standards such as ASTM, API, and ISO, which provide specific criteria for different applications and industries.

Q: Can steel pipes be used for underground cable ducting?: Yes, steel pipes can be used for underground cable ducting. Steel pipes are commonly used in underground cable ducting due to their strength, durability, and resistance to external factors such as corrosion and impact. They provide reliable protection for cables and are an effective solution for underground cable installations.

Q: How are steel pipes used in fire protection systems?: Steel pipes are commonly used in fire protection systems because of their durability and resistance to high temperatures. They are used to transport water or other fire suppressants to sprinkler heads or fire hydrants, ensuring quick and efficient extinguishing of fires. The strength of steel pipes also allows them to withstand the pressure and force of water flow, making them a reliable choice for fire protection systems.

Q: How do you calculate the stress in a steel pipe?: To calculate the stress in a steel pipe, you need to determine the applied force or load acting on the pipe and divide it by the cross-sectional area of the pipe. This will give you the stress value, which is typically measured in units of force per unit area (such as pounds per square inch or pascals).

Q: What are the different types of joints used to connect steel pipes?: There are several types of joints commonly used to connect steel pipes, including threaded joints, flanged joints, welded joints, and mechanical joints. Each type of joint has its own advantages and is chosen based on factors such as the application, pipe size, and pressure requirements.

Q: What are the common standards and specifications for steel pipes?: The common standards and specifications for steel pipes include ASTM A53, ASTM A106, API 5L, and ISO 3183. These standards outline the requirements for the manufacturing, dimensions, and mechanical properties of steel pipes used in various industries such as oil and gas, construction, and transportation. Additionally, specific applications may have their own standards and specifications that need to be met for quality and safety purposes.

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 future trends in steel pipe manufacturing?: Some future trends in steel pipe manufacturing include the use of advanced technologies such as robotic automation and artificial intelligence for increased efficiency and precision. There is also a growing focus on sustainability, with the development of eco-friendly manufacturing processes and the use of recycled materials. Additionally, there is a shift towards producing pipes with higher strength and lighter weight, as well as an increasing demand for customized products to meet specific industry requirements.

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