API SSAW LSAW CARBON STEEL PIPE LINE OIL GAS PIPE 28‘’

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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:Can steel pipes be used for steam distribution?: Yes, steel pipes can be used for steam distribution. Steel pipes are commonly used for conveying steam due to their high heat resistance and durability. They can withstand the high temperatures and pressures associated with steam distribution, making them a suitable choice for this application.

Q:Can steel pipes be used for heating and cooling systems?: Yes, steel pipes can be used for heating and cooling systems. Steel pipes are commonly used in HVAC (heating, ventilation, and air conditioning) systems as they have excellent heat transfer properties, durability, and can withstand high-pressure conditions. Additionally, steel pipes are resistant to corrosion, making them suitable for both heating and cooling applications.

Q:Where is a steel pipe casing usually used?: A straight tube of carbon steel sheathed on pipes and tubes and threading tubes to protect the joints from damage by electric welding. The purpose is to protect the wires and cables.

Q:How are steel pipes used in the agriculture industry?: Steel pipes are used in the agriculture industry for various purposes such as irrigation systems, drainage systems, and livestock handling equipment. They provide a durable and reliable solution for transporting water, nutrients, and effluents, ensuring efficient and effective operations in farm settings.

Q:Can steel pipes be used for conveying liquids and gases?: Indeed, the utilization of steel pipes extends to the conveyance of both liquids and gases. These pipes find widespread application across a multitude of industries, including oil and gas, water supply, plumbing, and industrial processes. Their commendable attributes encompass robustness, longevity, and resistance to corrosion. Consequently, steel pipes possess the capacity to withstand elevated pressure and temperature, rendering them ideal for the transportation of an extensive array of liquids and gases such as water, oil, natural gas, steam, and chemicals. Furthermore, the convenience of welding or threading steel pipes together facilitates effortless installation and maintenance procedures.

Q:What is the abrasion resistance of steel pipes?: The abrasion resistance of steel pipes is high due to their hardness and durability, making them resistant to wear and tear caused by friction or rubbing against surfaces.

Q:How do you prevent freezing in steel pipes during cold weather?: To prevent freezing in steel pipes during cold weather, there are several measures that can be taken: 1. Insulate the pipes: Insulation is an effective way to protect steel pipes from freezing. Use insulation sleeves or wraps to cover the pipes, especially in areas where they are exposed to cold temperatures. Insulation helps retain heat and prevents the pipes from reaching freezing temperatures. 2. Seal any air leaks: Check for any gaps or openings around the pipes where cold air can enter. Use caulking or weatherstripping to seal these gaps and prevent cold air from reaching the pipes. 3. Maintain a consistent temperature: Ensure that the area where the pipes are located is adequately heated and insulated. Keeping the temperature above freezing will help prevent the pipes from freezing. If the pipes are exposed to extremely low temperatures, consider using heat tape or pipe heating cables to provide additional warmth. 4. Allow water to flow: Running a small, continuous trickle of water through the pipes can help prevent freezing. The flowing water generates heat and inhibits the formation of ice within the pipes. However, this method should only be used as a last resort, as it can waste water. 5. Drain the pipes: If the steel pipes are in an area that is not regularly used or if freezing weather is expected, it may be advisable to drain the pipes completely. Turn off the water supply and open all faucets to allow the water to drain out. This eliminates any standing water that could freeze and cause the pipes to burst. It is important to note that prevention is key, as frozen steel pipes can lead to costly damages and water leaks. By implementing these measures, you can protect your steel pipes and ensure they remain functional during cold weather.

Q:What are the different methods of wrapping steel pipes for corrosion protection?: There are several different methods of wrapping steel pipes for corrosion protection. These methods can vary depending on the specific application and environmental conditions. Some of the common methods include: 1. Tape Wrapping: This involves wrapping the steel pipes with a corrosion-resistant tape, such as polyethylene or polypropylene tape. The tape acts as a barrier between the pipe surface and the corrosive elements, preventing direct contact and reducing the risk of corrosion. 2. Inner Wrapping: Inner wrapping involves applying a protective coating or lining to the inside surface of the steel pipe. This method is commonly used for pipes that transport fluids or gases, as it provides an additional layer of protection against corrosion from the inside. 3. External Coating: External coating is a widely used method for corrosion protection. It involves applying a protective coating to the outside surface of the steel pipe. The coating can be a variety of materials, such as epoxy, polyethylene, or polyurethane, which provide a barrier against corrosive elements and extend the lifespan of the pipe. 4. Cathodic Protection: Cathodic protection is an electrochemical method used to protect steel pipes from corrosion. It involves connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, which corrodes instead of the pipe. This process helps to prevent the corrosion of the steel pipe by diverting the corrosive current away from the pipe surface. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly used for corrosion protection in underground or submerged applications. These sleeves are made of a heat-activated material that shrinks when heated, creating a tight seal around the pipe. The sleeve forms an effective barrier against moisture and corrosive elements, preventing direct contact with the steel pipe. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating is a thermosetting powder coating that is applied to the surface of the steel pipe and then fused to form a protective layer. This coating provides excellent adhesion and corrosion resistance, making it a popular choice for steel pipes in various applications. It is important to note that the selection of the appropriate method for wrapping steel pipes for corrosion protection depends on factors such as the environment, the type of corrosive elements present, the intended application, and other specific requirements. Professional advice and consultation may be necessary to determine the most suitable method for a particular situation.

Q:How do you determine the maximum allowable stress for steel pipes?: In order to establish the maximum allowable stress for steel pipes, several factors must be taken into account. These factors encompass the type of steel, the dimensions of the pipe, and the operating conditions it will be exposed to. To begin with, the type of steel chosen is a pivotal aspect in determining the maximum allowable stress. Different steel grades possess distinct mechanical properties, including yield strength, tensile strength, and elongation. These properties define the steel's capacity to withstand stress before deforming or failing. Hence, it is crucial to comprehend the specific grade of steel employed in the pipes to ascertain the maximum allowable stress. Additionally, the dimensions of the pipe are of utmost importance. The external diameter, wall thickness, and length all impact the pipe's strength and ability to handle stress. By calculating the cross-sectional area and moment of inertia, engineers can evaluate the pipe's resistance to bending and axial stresses. These calculations, combined with the material properties, facilitate the determination of the maximum allowable stress. Finally, the operating conditions under which the pipe will be utilized play a critical role. Variables such as temperature, pressure, and the presence of corrosive substances can significantly influence the maximum allowable stress of a steel pipe. Elevated temperatures can alter the mechanical properties of the steel, while high pressures can induce additional stress. Furthermore, the presence of corrosive substances can lead to material degradation and diminish the pipe's strength. Thus, considering these operational factors is essential when determining the maximum allowable stress. To summarize, the process of establishing the maximum allowable stress for steel pipes entails assessing the specific steel grade, the pipe's dimensions, and the operating conditions. By analyzing these factors, engineers can ensure that the steel pipe is designed and utilized within its safe stress limits.

Q:How are steel pipes tested for quality and strength?: Steel pipes are tested for quality and strength through various methods, including destructive and non-destructive testing. Destructive testing involves subjecting the pipes to extreme forces, such as tension, compression, and bending, to determine their mechanical properties and structural integrity. Non-destructive testing methods, such as ultrasonic testing, magnetic particle testing, and radiographic testing, are used to detect any defects or inconsistencies in the pipes without causing damage. These rigorous testing procedures ensure that steel pipes meet the required quality and strength standards before being used in various applications.

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