CARBON STEEL PIPE FITTINGS ASTM A234 FLANGE 16'' 20'' 22''

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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 is the theoretical weight per square meter of the steel pipe diameter of the outer frame and the thickness of the tube wall 3mm 48mm?: Dimensions of ordinary steel tubes (taken from GB/T 17395-1998)The theory of weight / (kg/m) | wall thickness (2.9 3.0mm: 3.33)

Q: How are steel pipes protected against electrolytic corrosion?: Steel pipes are protected against electrolytic corrosion through a variety of methods. One common method is the application of protective coatings on the surface of the pipes. These coatings act as a barrier, preventing direct contact between the steel and the surrounding environment, which includes moisture and other corrosive substances. Coatings such as epoxy, polyethylene, and zinc are commonly used for this purpose. Another method of protection is the use of sacrificial anodes. Sacrificial anodes are made from a metal that is more reactive than steel, such as zinc or aluminum. These anodes are attached to the steel pipes and, as they corrode over time, they sacrifice themselves to protect the steel. This process is known as cathodic protection and is highly effective in preventing electrolytic corrosion. In addition to coatings and sacrificial anodes, proper insulation and electrical isolation are crucial in protecting steel pipes from electrolytic corrosion. Insulating materials, such as rubber or plastic sleeves, are used to prevent direct contact between the pipes and other metals or electrolytes. Electrical isolation can be achieved through the use of dielectric unions or insulating flanges, which prevent the flow of electric current between different sections of the pipeline. Regular maintenance and inspection also play a key role in protecting steel pipes against electrolytic corrosion. Periodic checks for coating integrity, anode condition, and potential electrical leakage are essential to ensure the continued effectiveness of the corrosion protection system. Overall, a combination of protective coatings, sacrificial anodes, insulation, electrical isolation, and regular maintenance is necessary to protect steel pipes against electrolytic corrosion. By implementing these measures, the lifespan of steel pipes can be significantly extended, ensuring the safety and reliability of various applications such as water distribution, oil and gas transportation, and structural support in buildings and infrastructure.

Q: What are the different methods of testing steel pipes?: There are several methods of testing steel pipes, including non-destructive testing methods such as ultrasonic testing, magnetic particle testing, liquid penetrant testing, and radiographic testing. Destructive testing methods like tensile testing, bend testing, and impact testing can also be used to assess the strength and integrity of steel pipes.

Q: What is the typical diameter range for steel pipes?: The typical diameter range for steel pipes varies, but it typically falls between 1/2 inch to 48 inches.

Q: Can steel pipes be used for the construction of offshore wind farms?: Yes, steel pipes can be used for the construction of offshore wind farms. Steel pipes are commonly used for the fabrication of foundation structures, such as monopiles or jackets, which provide stability and support for wind turbine installations in the seabed. The durability, strength, and resistance to corrosion of steel make it an ideal material for withstanding the harsh offshore conditions. Additionally, steel pipes can be easily transported, assembled, and installed, making them a cost-effective and reliable choice for offshore wind farm construction.

Q: What are the different types of threading on steel pipes?: There are several types of threading commonly used on steel pipes, including tapered or NPT (National Pipe Taper), straight or NPS (National Pipe Straight), and British Standard Pipe (BSP) threading. These different types of threading are designed to ensure a secure and leak-free connection between pipes and fittings.

Q: Can steel pipes be used for the construction of railway tracks?: No, steel pipes are not suitable for the construction of railway tracks. Railway tracks require specialized rails made of steel that are specifically designed to withstand the heavy loads and constant wear and tear associated with train traffic. Pipes do not have the necessary shape, strength, or durability to serve as railway tracks.

Q: Can steel pipes be used for underground cable protection?: Yes, steel pipes can be used for underground cable protection. Steel pipes offer durability, strength, and corrosion resistance, making them suitable for protecting cables from external factors such as moisture, chemicals, and physical damage. Additionally, steel pipes can be coated or galvanized to provide further protection against rust and corrosion.

Q: Are steel pipes suitable for wastewater treatment plants?: Indeed, wastewater treatment plants find steel pipes to be a suitable option. Their exceptional strength and durability make them a prevalent choice in this field. The ability to endure high pressure and resist corrosion renders them highly suitable for transporting wastewater and various fluids within the challenging environments of treatment plants. Moreover, the ease of welding and joining steel pipes allows for flexibility in designing and installing the piping system. All in all, steel pipes prove to be a dependable and economical selection for wastewater treatment plants.

Q: How are steel pipes used in the transportation of liquids and gases?: Steel pipes are widely used in the transportation of liquids and gases due to their durability, strength, and resistance to corrosion. They are commonly employed in various industries such as oil and gas, water supply, and chemical processing. In the transportation of liquids, steel pipes are used to convey crude oil, refined petroleum products, water, and other fluids. These pipes are designed to withstand high pressure and maintain the integrity of the liquid being transported. The smooth inner surface of steel pipes minimizes friction, allowing for efficient flow and reduced energy consumption. Additionally, the strength of steel pipes ensures that they can withstand the weight of the liquid being transported without deformation or failure. When it comes to gas transportation, steel pipes are crucial for their ability to safely transport natural gas, propane, and other compressed gases over long distances. These pipes are engineered to withstand high pressures and extreme temperatures. They are also designed to prevent leakage, which is of utmost importance when dealing with flammable or toxic gases. The strength and durability of steel pipes make them ideal for withstanding the stress and strain that may occur during the transportation of gases. Furthermore, steel pipes are often used in the construction of pipelines for long-distance transportation of liquids and gases. These pipelines can span hundreds or even thousands of kilometers, and steel pipes are the preferred choice due to their high strength and long-term reliability. They can handle the weight of the pipe and the transported substance, as well as the external forces such as soil pressure and temperature fluctuations. In summary, steel pipes play a crucial role in the transportation of liquids and gases. Their durability, strength, and resistance to corrosion make them the preferred choice for conveying various substances over long distances. Whether it is for oil and gas, water supply, or chemical processing, steel pipes ensure the safe and efficient transportation of fluids and gases, contributing to the functioning of various industries and economies worldwide.

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