18'' CARBON STEEL LSAW WELDED PIPE API/ASTM/JIS/DIN

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t

Supply Capability:: 300 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

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 cooling systems?: Yes, steel pipes can be used for cooling systems. Steel pipes are commonly used in various applications, including cooling systems, due to their durability, strength, and resistance to high temperatures and pressure. They are particularly suitable for industrial cooling systems where there may be harsh environmental conditions or corrosive fluids. Steel pipes have excellent heat conductivity, which enables efficient heat transfer, making them a reliable choice for cooling applications. Additionally, steel pipes can be easily fabricated, welded, and customized to meet specific cooling system requirements. However, it is important to ensure that the steel pipes used are properly coated or insulated to prevent corrosion and minimize heat loss.

Q: How do you determine the wall thickness of a steel pipe?: There are several methods available for determining the wall thickness of a steel pipe. The most commonly used and precise approach involves utilizing a caliper or micrometer to measure it. Initially, ensure that the pipe is thoroughly cleaned and devoid of any debris or rust. Subsequently, gently position the caliper or micrometer around the circumference of the pipe, making certain that it is perpendicular to the surface. Proceed to cautiously close the jaws of the measuring tool until they snugly fit against the pipe, taking care not to excessively tighten them and distort the shape. Once the jaws are closed, observe and take note of the measurement displayed on the tool. This reading corresponds to the distance between the inner and outer diameter of the pipe, which is equivalent to the wall thickness. Alternatively, if a caliper or micrometer is unavailable, a pipe wall thickness gauge can be utilized. These gauges are equipped with a series of pins or rollers that can be inserted into the pipe, providing an accurate measurement. Simply insert the pins into the pipe, ensuring proper alignment with the wall, and refer to the reading displayed on the gauge. It is crucial to note that when measuring the wall thickness of a steel pipe, multiple readings should be taken at various points along the pipe to account for any variations. This will yield a more precise average measurement.

Q: Can steel pipes be used for transporting liquids and gases?: Indeed, both liquids and gases can be transported using steel pipes. Renowned for their durability, strength, and resistance to corrosion, steel pipes are highly appropriate for various purposes, including the conveyance of fluids and gases. Industries like oil and gas, water supply, sewage systems, and chemical processing plants frequently employ steel pipes due to their reliability and efficiency in transporting liquids and gases across extensive distances. As a result, the transportation of these substances is accomplished securely and efficiently with the aid of steel pipes.

Q: What is the difference between steel pipe and copper pipe?: The main difference between steel pipe and copper pipe lies in their material composition. Steel pipe is made of steel, while copper pipe is made of copper. Steel pipe is stronger and more durable, making it suitable for high-pressure and heavy-duty applications. On the other hand, copper pipe is more malleable and corrosion-resistant, making it ideal for plumbing and water supply systems. Additionally, copper pipe is more expensive than steel pipe but offers better heat conductivity, making it suitable for heating and cooling applications.

Q: How are steel pipes insulated for thermal purposes?: Various methods are commonly employed to insulate steel pipes for thermal purposes. One method frequently utilized involves wrapping the pipes with insulation materials like fiberglass, mineral wool, or foam. These materials act as a barrier between the pipe and its surroundings, effectively preventing heat transfer or loss. To ensure the proper insulation of steel pipes, the insulation material is typically tightly wrapped around the pipe, leaving no gaps or openings for heat to escape. Adhesive tapes or metal bands are then used to secure the insulation in place. In addition to external insulation, internal insulation can also be applied to steel pipes. This involves placing insulation material inside the pipe, creating a protective layer against heat loss or gain. Internal insulation is commonly utilized in situations where the pipe carries hot fluids or gases. Moreover, certain steel pipes are designed to incorporate a built-in insulation layer. These pipes, known as pre-insulated pipes, already come equipped with insulation material integrated into their structure. The insulation layer is typically made of foam or mineral wool and is covered with a protective outer layer, ensuring effective thermal insulation. The insulation of steel pipes for thermal purposes plays a critical role in various industries, including oil and gas, HVAC, and plumbing. Proper insulation helps to maintain the desired temperature of fluids or gases flowing through the pipes, preventing energy loss and enhancing overall efficiency.

Q: Can steel pipes be used for conveying abrasive slurries?: Yes, steel pipes can be used for conveying abrasive slurries. Steel pipes are known for their durability and strength, making them suitable for handling abrasive materials such as slurries. However, to ensure longevity and prevent excessive wear, it is important to select the appropriate grade of steel and consider factors such as pipe thickness, lining options, and flow velocity. Additionally, implementing proper maintenance and inspection procedures can help to detect and address any wear or corrosion that may occur over time.

Q: How are steel pipes used in agriculture?: Steel pipes are widely used in agriculture for various purposes. One common application is irrigation systems. Steel pipes can be used to transport water from a water source, such as a well or a reservoir, to different areas of a farm. These pipes are durable and can withstand the pressure of water, making them ideal for long-distance water transportation. Additionally, steel pipes are also used for drainage systems in agriculture. They can be used to remove excess water from fields, preventing waterlogging and ensuring proper drainage. Steel pipes are resistant to corrosion, which is important in agricultural settings where they may be exposed to moisture and various chemicals. Moreover, steel pipes are used in the construction of greenhouse structures. They provide structural support for the greenhouse framework and allow for the installation of irrigation systems and other equipment. Steel pipes are strong, sturdy, and can withstand harsh weather conditions, making them suitable for greenhouse construction. Furthermore, steel pipes are utilized in livestock farming. They are commonly used to create fences and enclosures for animals, providing a secure and durable barrier. Steel pipes are also used in the construction of animal shelters and barns. In summary, steel pipes play a crucial role in agriculture. They are used for irrigation systems, drainage systems, greenhouse construction, and livestock farming. Their durability, strength, and resistance to corrosion make them an excellent choice for various agricultural applications.

Q: Can steel pipes be used for geothermal systems?: Yes, steel pipes can be used for geothermal systems. Steel pipes are commonly used in geothermal systems for their high strength, durability, and ability to withstand high temperatures and pressures. They are also resistant to corrosion, making them suitable for long-term use in geothermal applications.

Q: Can steel pipes be used for air conditioning systems?: Yes, steel pipes can be used for air conditioning systems. Steel pipes are commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems as they are durable, can withstand high pressures, and are resistant to corrosion.

Q: How are steel pipes connected in pipeline construction?: Steel pipes are connected in pipeline construction through various methods, such as welding, threading, and flanges. Welding involves melting the ends of two pipes together to form a strong and permanent bond. Threading involves cutting grooves into the ends of pipes, which are then screwed together using threaded fittings. Flanges are used to connect pipes by bolting them together, creating a secure and leak-proof connection. These connection methods ensure the integrity and durability of the pipeline system.

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