SPIRAL WELDED STEEL PIPE 32‘’ 48‘’CARBON

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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
Brand:TPCO

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:Can steel pipes be used for underground gas storage?: Yes, steel pipes can be used for underground gas storage. Steel pipes are commonly used in underground gas storage facilities due to their strength, durability, and resistance to corrosion. They provide a reliable and secure means of storing and transporting gas underground.

Q:How does the price of steel pipes vary based on market demand?: The price of steel pipes can vary based on market demand. When there is high demand for steel pipes, the price tends to increase as suppliers may have limited stock and are able to charge higher prices. Conversely, when the demand is low, the price of steel pipes can decrease as suppliers may offer discounts or reduce prices to encourage sales. Therefore, market demand plays a significant role in influencing the price fluctuations of steel pipes.

Q:How are steel pipes used in the manufacturing of heat exchangers?: Steel pipes are commonly used in the manufacturing of heat exchangers due to their excellent heat transfer properties and durability. They are utilized as the main components for carrying and transferring hot or cold fluids within the heat exchanger system. The steel pipes ensure efficient heat exchange by providing a smooth and continuous flow of the fluid, while also withstanding high temperatures and pressures. Additionally, steel pipes are often preferred for their corrosion resistance, making them suitable for various industrial applications requiring reliable and long-lasting heat exchangers.

Q:What is the maximum allowable pressure for steel pipes?: Various factors, such as the type of steel used, the pipe's diameter and thickness, and specific industry requirements, determine the maximum pressure allowed for steel pipes. The American Society of Mechanical Engineers (ASME) offers guidelines and standards for pressure vessel and piping design, which include determining the maximum allowable pressure. For power piping and process piping, ASME B31.1 and B31.3 are commonly used codes, respectively. These codes establish design criteria for different materials, including steel, and provide formulas and charts to calculate the maximum allowable pressure for different pipe sizes and wall thicknesses. The maximum allowable pressure is typically determined based on the pipe's ability to withstand internal pressure without experiencing permanent deformation or failure. It is important to consider other factors, such as temperature, corrosion, and the presence of external loads or stresses, as they may also impact the maximum allowable pressure for steel pipes. Therefore, it is essential to refer to the relevant codes, standards, and engineering calculations specific to the application to ensure the safe and reliable operation of steel pipes under the given conditions.

Q:How are steel pipes protected against external moisture?: Steel pipes are typically protected against external moisture through various methods such as coating them with corrosion-resistant materials like epoxy or zinc, applying protective tapes or wraps, using cathodic protection systems, or utilizing corrosion inhibitors during the manufacturing process. These measures help to prevent the formation of rust and ensure the longevity and reliability of the steel pipes.

Q:What are the different types of steel pipe nipples?: Various applications commonly use several types of steel pipe nipples, including seamless, welded, threaded, and grooved. 1. For high-pressure or critical applications, seamless steel pipe nipples are preferred due to their superior strength and reliability. They are manufactured from a solid piece of steel without any seams or joints. Depending on the specific requirements, seamless nipples can be either threaded or plain-ended. 2. Welded steel pipe nipples, on the other hand, are made by joining multiple pieces of steel through welding. They are commonly used in non-critical applications that do not involve high pressure. Welded nipples are available in both threaded and plain-ended options. 3. Threaded steel pipe nipples have external threads at one or both ends, making it easy to connect them to other threaded fittings or pipes. They are commonly used in plumbing, water supply systems, and other applications where a secure and leak-free connection is crucial. Threaded nipples come in various lengths and diameters to accommodate different requirements. 4. Grooved steel pipe nipples feature a groove or indentation around their circumference, allowing for easy installation using grooved couplings. They are commonly used in fire protection systems, HVAC systems, and other applications where quick and efficient installation is necessary. Grooved nipples are available in various sizes and configurations to suit different piping systems. To summarize, there are different types of steel pipe nipples, including seamless, welded, threaded, and grooved. Each type has its own advantages and is suitable for specific applications. It is essential to consider the project's specific requirements and conditions before selecting the appropriate type of steel pipe nipple.

Q:How do you calculate the pipe volume flow rate for steel pipes?: The pipe volume flow rate for steel pipes can be calculated using the formula: V = A * V_avg, where V is the volume flow rate, A is the cross-sectional area of the pipe, and V_avg is the average velocity of the fluid flowing through the pipe.

Q:What are the different types of steel pipe fittings?: Some of the different types of steel pipe fittings include elbow fittings, tee fittings, cross fittings, coupling fittings, nipple fittings, and cap fittings.

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 oil and gas, and pipeline construction. They provide strength, durability, and resistance to corrosion, making them suitable for carrying fluids under high pressure and in harsh environments. Steel pipes also facilitate efficient extraction, production, and distribution of oil and gas resources across vast distances.

Q:Are steel pipes suitable for transporting gas?: Yes, steel pipes are suitable for transporting gas. Steel pipes are known for their durability and strength, making them ideal for transporting gas safely over long distances. They are resistant to corrosion and can handle high pressure, making them a reliable choice for gas transportation.

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