API SSAW LSAW CARBON STEEL PIPE LINE OIL GAS PIPE 18’‘

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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:How are steel pipes connected to other materials like concrete or plastic?: Various methods are commonly employed to connect steel pipes to other materials such as concrete or plastic. Among these methods, fittings play a significant role. Fittings, specialized components, serve to facilitate the connection between different materials or sections of pipe. These fittings are available in a variety of shapes and sizes, including elbows, tees, reducers, and couplings, and are designed to establish a dependable and leak-proof connection. When it comes to connecting steel pipes to concrete, one method involves the utilization of concrete anchors. These anchors are embedded within the concrete structure and provide a stable foundation for securing the steel pipe. Clamps or brackets are subsequently employed to attach the pipe to the anchor. In the case of joining steel pipes to plastic materials, the use of transition fittings proves to be effective. These fittings are specifically crafted to connect steel pipes with plastic pipes. They typically feature different connection mechanisms on each end, such as threads or compression fittings, enabling a secure and reliable joint. Welding techniques can also be employed to connect steel pipes to other materials in certain situations. Welding involves melting the ends of the steel and the other material together to create a robust joint. This method is commonly utilized for connecting steel pipes to steel structures or components. In summary, the connection of steel pipes to materials like concrete or plastic necessitates the utilization of specialized fittings, anchors, or welding techniques. These methods guarantee a secure, long-lasting connection capable of withstanding the demands of the given application.

Q:How does the price of steel pipes vary based on market demand?: The price of steel pipes varies based on market demand because when the demand for steel pipes is high, the prices tend to increase as suppliers can charge more for their products. Conversely, when the demand is low, the prices may decrease as suppliers may need to offer discounts or special deals to attract buyers. Essentially, the price of steel pipes fluctuates with changes in market demand.

Q:How do you calculate the stress in a steel pipe?: When calculating the stress in a steel pipe, it is necessary to take into account the steel's material properties and the external forces acting upon the pipe. The stress in the pipe is typically determined using the following equation: Stress = Force / Area Initially, the force acting on the pipe must be established. This force may stem from external loads such as pressure, weight, or mechanical forces. The force can be calculated by multiplying the pressure or weight by the surface area it acts upon. For instance, if the pipe is subjected to internal pressure, the force can be determined using the equation: Force = Pressure x Area Subsequently, the cross-sectional area of the pipe needs to be determined. The cross-sectional area of a circular pipe can be calculated using the formula: Area = π x (Diameter / 2)^2 Once the force and area have been determined, the stress can be calculated by dividing the force by the area. This calculation will yield the stress value in units like pounds per square inch (psi) or newtons per square meter (Pa). It is important to bear in mind that the stress calculation assumes that the pipe is in a state of equilibrium and that the material properties of the steel are known. The material properties, such as yield strength and ultimate tensile strength, are utilized to ensure that the calculated stress does not exceed the steel's maximum capacity.

Q:What are the different methods of joining steel pipes for oil and gas pipelines?: There are several methods of joining steel pipes for oil and gas pipelines, including welding, threading, and flanging. Welding involves melting the edges of the pipes together to create a strong bond. Threading involves screwing the pipes together using a threaded connection. Flanging involves using a flange to connect the pipes, which is bolted together with a gasket in between for a secure seal. These methods are commonly used in the construction of oil and gas pipelines to ensure reliable and leak-free connections.

Q:How are steel pipes used in the automotive industry?: Steel pipes are commonly used in the automotive industry for various applications such as exhaust systems, fuel lines, and structural components. These pipes provide durability, resistance to corrosion, and high strength, making them ideal for transporting gases, fluids, and supporting the vehicle's structure.

Q:Can steel pipes be used for underground culverts?: Yes, steel pipes can be used for underground culverts. Steel pipes are known for their strength, durability, and resistance to various environmental factors, which makes them suitable for underground applications. They can withstand heavy loads, high water pressure, and the corrosive effects of soil and water. Additionally, steel pipes are available in various sizes and thicknesses, allowing for customization to fit specific project requirements. However, it is important to consider factors such as the soil conditions, water table levels, and potential for corrosion when selecting the appropriate type of steel and protective coatings for the pipes.

Q:Can steel pipes be used for underground geothermal systems?: Indeed, underground geothermal systems can utilize steel pipes. Given their robustness and longevity, steel pipes are frequently employed in geothermal systems. They can endure the elevated temperatures and pressures inherent in the extraction and distribution of geothermal energy. Moreover, steel pipes exhibit excellent resistance to corrosion, a crucial attribute when contending with the subterranean milieu and the diverse array of minerals and chemicals present in the soil. Furthermore, steel pipes possess versatility, enabling straightforward underground installation and connection, rendering them a fitting selection for geothermal systems.

Q:How do you connect steel pipes together?: Steel pipes can be connected together using various methods such as welding, threading, flanges, or mechanical couplings. Welding involves fusing the ends of the pipes together using heat, while threading involves cutting grooves into the pipe ends and screwing them together. Flanges are used to connect pipes using bolts and gaskets, providing a secure and leak-proof joint. Mechanical couplings utilize compression fittings or clamps to connect pipes without the need for welding or threading. The appropriate method depends on the specific application, pipe size, and project requirements.

Q:How are steel pipes used in irrigation systems?: Steel pipes are commonly used in irrigation systems to transport water from a water source, such as a well or a reservoir, to the fields or plants that need to be irrigated. These pipes are durable, strong, and resistant to corrosion, making them ideal for withstanding the constant flow of water and the harsh outdoor conditions. They are typically laid underground or above the surface, depending on the specific irrigation system design, and are connected to sprinklers or drip irrigation systems to distribute water efficiently and effectively to the crops or plants.

Q:What are the different end types for steel pipes?: Steel pipes can have various end types, each designed for a specific purpose. Some common end types include: 1. Plain End: This is the simplest type, with no threading or special treatment. It is used for non-threaded applications or when welding is required. 2. Threaded End: These ends have male threads on one or both sides, allowing for easy connection with other threaded fittings or pipes. They are commonly used in plumbing and gas applications that require easy assembly and disassembly. 3. Beveled End: Beveled ends are cut at an angle (usually 30 or 45 degrees) to facilitate welding. The smooth transition between the pipe and the weld joint ensures a strong connection. They are used in construction, oil and gas, and pipeline industries. 4. Coupling End: These ends have female threads on both sides, enabling the joining of two pipes with a coupling or fitting. They are often used in plumbing systems or for easily disassembling pipe sections. 5. Flanged End: Flanged ends have a flared or raised lip on one or both sides, allowing for easy attachment to other flanged components like valves or pumps. They are commonly used in industrial applications requiring secure connections. 6. Socket Weld End: These ends have a socket or recess on one or both sides, allowing for easy connection with socket weld fittings. They provide a strong joint and are commonly used in high-pressure applications, such as petrochemical or power plants. These examples demonstrate the variety of end types available for steel pipes. The choice depends on specific application requirements, including the need for easy assembly, disassembly, or compatibility with other fittings.

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