API SSAW LSAW CARBON STEEL PIPE LINE OIL GAS PIPE 24’‘

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 3000 m.t./month

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Packaging & Delivery

Packaging Detail:	standard export packing or as customer's requirement
Delivery Detail:	within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:20-273mm

Spiral Welded Steel Pipes and Tubes

Product Description:

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

2,Standard: SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

3.Wall thickness: 3.0mm-30mm

4.Outer diameter: φ168mm-3020mm

5,Length: 5m-12m or as your requirement

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

Q195-q345 Material Steel Pipe's Materials

Elements Material	Chemical Compsition%					Mechanical Property
	C%	Mn%	S%	P%	Si%	Yield Point (Mpa)	Tensile Strength(Mpa)	Elongation (%)
Q195	0.06-0.12	0.25-0.50	<0.050< span="">	<0.045< span="">	<0.030< span="">	>195	315-430	32-33
Q215	0.09-0.15	0.25-0.55	<0.05< span="">	<0.045< span="">	<0.030< span="">	>215	335-450	26-31
Q235	0.12-0.20	0.30-0.70	<0.045< span="">	<0.045< span="">	<0.030< span="">	>235	375-500	24-26
Q345	<0.20< span="">	1.0-1.6	<0.040< span="">	<0.040< span="">	<0.55< span="">	>345	470-630	21-22

Packaging & Delivery

Packaging Detail:	Normal exporting packing,in container or bulk vessel or as per clients' request
Delivery Detail:	2 months after confimed contract

Specifications

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Grade: X42, X46, X50, X52, X60, B, C
OD: 1.5"-28"
WT: SCH10-SCH160

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe

Specifications:

u Standard: API 5L

u Grade: B, C, X42, X46, X50, X52, X56, X60, X65, X70, X80

u OD: 1.5"-28"

u WT: SCH10-SCH160

u Length: 5-12m

u Ends Finish: plain end, bevel end, grooved end

u Surface Treatment: bare, black varnished, oiled finish, red color, anti-corrosion, 3PE, FBE or epoxy coating

u Technique: hot rolled or cold drawn

u Application: api 5l steel pipe for conveying oil, water, gas

u Invoicing: based on theoretical weight or actual weight

u Payment Terms: L/C at sight, T/T or Western Union

u Trade Terms: FOB, CFR, CIF

u Certification: ABS manufacturing assessment, ABS design assessment, API 5CT, API 5L, DNV manufacturer certificate, ISO9001 quality management system certificate, ISO14001 environment management system certificate, GB/T28001 occupational health and safety management system certificate, A1 class manufacturing license of special equipment certificate, CCS, GL, LR, SGS, TüV, PDE

Q:What is the typical diameter range for steel pipes?: The typical diameter range for steel pipes can vary depending on the specific application and industry requirements. However, in general, steel pipes can have diameters ranging from as small as 0.5 inches (12.7 millimeters) up to several feet (over a meter) in diameter. The most commonly used steel pipes for various purposes, such as plumbing, construction, and transportation of fluids or gases, typically fall within the range of 1/2 inch (13 millimeters) to 36 inches (914 millimeters) in diameter. It is important to note that larger diameter steel pipes are often used for industrial applications, such as oil and gas pipelines, while smaller diameter pipes are commonly used for residential and commercial plumbing systems.

Q:How do you calculate the maximum allowable deflection for steel pipes?: To calculate the maximum allowable deflection for steel pipes, you need to consider various factors such as the pipe diameter, material properties, support conditions, and the desired level of deflection. The maximum allowable deflection is typically determined based on industry standards and codes. One commonly used method for calculating the maximum allowable deflection is based on the pipe's span-to-diameter ratio (L/D ratio). The L/D ratio is the ratio of the pipe's span (distance between supports) to its diameter. Several industry codes provide guidelines on the maximum allowable deflection based on the L/D ratio. For example, the American Society of Mechanical Engineers (ASME) B31.1 Power Piping Code suggests that for carbon steel pipes, the maximum allowable deflection should not exceed 3% of the pipe's span for an L/D ratio of 100 or less. However, for higher L/D ratios, the deflection limit decreases, ensuring the pipe's stability and structural integrity. To calculate the maximum allowable deflection using the L/D ratio method, you would first determine the L/D ratio based on the span and diameter of the pipe. Then, referring to the applicable code or standard, you can find the corresponding maximum allowable deflection limit. It is important to note that other factors such as the pipe material's yield strength, wall thickness, and the type of loading (e.g., dead load, live load) also influence the maximum allowable deflection. Therefore, it is crucial to consult the relevant industry standards, codes, and engineering principles to accurately calculate the maximum allowable deflection for steel pipes.

Q:How do steel pipes perform in high-temperature environments?: Steel pipes perform well in high-temperature environments due to their inherent strength and heat resistance. They can withstand extreme temperatures without losing their structural integrity or deforming, making them suitable for various industrial applications such as steam pipelines, power plants, and refineries. The high melting point of steel allows it to maintain its mechanical properties even at elevated temperatures, ensuring reliable and efficient operation in high-temperature environments.

Q:How are steel pipes specified in engineering drawings?: Steel pipes are specified in engineering drawings by providing information such as the diameter, thickness, material grade, length, and any additional specifications or requirements such as the type of coating or threading needed.

Q:How do you calculate the flow rate in a steel pipe?: To calculate the flow rate in a steel pipe, several parameters need to be considered. The first and most important parameter is the cross-sectional area of the pipe, which can be calculated using the formula A = πr², where A is the cross-sectional area and r is the radius of the pipe. Next, the velocity of the fluid flowing through the pipe needs to be determined. This can be done using the equation v = Q/A, where v is the velocity, Q is the volumetric flow rate, and A is the cross-sectional area of the pipe. To calculate the volumetric flow rate, the equation Q = AV can be used, where Q is the volumetric flow rate, A is the cross-sectional area, and V is the average velocity of the fluid. Additionally, it is important to take into account the properties of the fluid being transported through the pipe. The density and viscosity of the fluid can affect the flow rate. Overall, the flow rate in a steel pipe can be calculated by determining the cross-sectional area of the pipe, calculating the velocity of the fluid, and considering the properties of the fluid being transported.

Q:What are the different methods of joining steel pipes without welding?: There are several methods of joining steel pipes without welding, including: 1. Mechanical Couplings: These couplings consist of two separate pieces that are attached to the ends of the pipes and then tightened together. They provide a secure and leak-proof connection without the need for welding. 2. Threaded Connections: In this method, the ends of the steel pipes are threaded to create a male and female connection. The pipes are then screwed together using pipe threads, providing a strong and reliable joint. 3. Flanged Connections: Flanges are used to connect steel pipes by bolting them together. The flanges have a flat surface with holes that align with corresponding holes in the opposite flange. Bolts are then inserted and tightened to create a tight seal. 4. Grooved Connections: This method involves grooving the ends of the steel pipes and then using grooved couplings to join them. The couplings have teeth that interlock with the grooves, creating a secure and rigid connection. 5. Compression Fittings: Compression fittings are used to join steel pipes by compressing a metal or plastic ring onto the pipe's outer surface. This creates a tight seal and a reliable connection, without the need for welding. 6. Adhesive Bonding: Special adhesives designed for metal bonding can be used to join steel pipes. The adhesive is applied to the surfaces of the pipes, which are then pressed together and left to cure, creating a strong and durable bond. 7. Clamping: Clamps can be used to hold steel pipes together, creating a temporary connection. This method is commonly used for testing purposes or in situations where the pipes need to be easily disassembled. Each of these methods has its own advantages and limitations, and the choice depends on factors such as the specific application, pipe material, and the required strength of the joint.

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 different types of pipe connections used with steel pipes?: There are several types of pipe connections commonly used with steel pipes. Some of the most common types include: 1. Threaded connections: These connections involve threading the ends of the pipe and using threaded fittings to connect them. This type of connection is typically used for smaller diameter pipes and is easy to install and dismantle. 2. Welded connections: Welding is a common method used to connect steel pipes. It involves joining the ends of the pipes together by melting the metal and fusing them together. Welded connections are durable and strong, making them suitable for high-pressure applications. 3. Flanged connections: Flanges are used to connect pipes by bolting them together. Flanged connections are commonly used in industrial applications and are often used for larger diameter pipes or when the pipe needs to be easily disassembled for maintenance purposes. 4. Grooved connections: Grooved connections involve using grooved fittings that have grooves on the inside to connect the pipes. These connections are often used in fire protection systems and are quick and easy to install. 5. Compression connections: Compression fittings are used to connect steel pipes by compressing a ferrule onto the pipe. This type of connection is commonly used in plumbing applications and provides a tight and secure seal. 6. Mechanical connections: Mechanical connections, such as couplings or clamps, are used to connect steel pipes without the need for welding or threading. These connections are often used for temporary or emergency repairs. Each type of pipe connection has its advantages and disadvantages, and the choice of connection method will depend on factors such as the application, pipe size, and installation requirements. It is important to carefully consider these factors to ensure a secure and reliable connection for steel pipes.

Q:How are steel pipes used in the transportation of fluids?: Steel pipes are commonly used in the transportation of fluids due to their durability and strength. They are used to carry various types of liquids and gases, such as water, oil, natural gas, and chemicals. Steel pipes are able to withstand high pressure and temperature, making them ideal for long-distance transportation of fluids. They are widely used in industries like oil and gas, water supply, and sewage systems, providing a reliable and efficient means of fluid transportation.

Q:Can steel pipes be used for underground gas pipelines?: Yes, steel pipes can be used for underground gas pipelines. Steel pipes are ideal for underground gas pipelines because they are durable, strong, and can withstand the pressure and corrosive elements found underground. Additionally, steel pipes have a long lifespan, are resistant to extreme temperatures, and are relatively easy to install and maintain.

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