SPIRAL WELDED STEEL PIPE 12'' 14‘’ MIDDLE DIMETER 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:How do you prevent leaks in steel pipes?: One effective way to prevent leaks in steel pipes is by implementing a regular maintenance and inspection schedule. This includes checking for any signs of corrosion, damage, or wear and tear on the pipes. Additionally, using high-quality coatings or protective materials on the pipes can help minimize the risk of leaks by providing an extra layer of protection against external factors. Proper installation techniques and ensuring a secure connection between pipe joints are also crucial in preventing leaks.

Q:What are the different coating materials used for steel pipes?: There are several different coating materials used for steel pipes, including epoxy, polyurethane, coal tar enamel, and zinc. These coatings are applied to the steel pipes to provide protection against corrosion and to enhance their durability and lifespan.

Q:Are steel pipes suitable for use in acidic environments?: Yes, steel pipes are generally suitable for use in acidic environments. However, the specific grade of steel and the concentration of the acid should be considered to ensure proper corrosion resistance. Coating or lining the pipes with materials such as epoxy or rubber can also enhance their resistance to acidic conditions.

Q:Can steel pipes be used for gas transmission pipelines?: Yes, steel pipes can be used for gas transmission pipelines. Steel is a commonly used material for gas pipelines due to its strength, durability, and resistance to corrosion. Additionally, steel pipes can withstand high pressure and temperature conditions, making them suitable for transporting natural gas over long distances.

Q:Are steel pipes suitable for fire protection systems?: Yes, steel pipes are suitable for fire protection systems. They have excellent fire resistance properties and can withstand high temperatures, making them ideal for conveying water or other fire suppressants in fire protection systems. Steel pipes are also strong, durable, and resistant to corrosion, ensuring long-term reliability and effectiveness in fire protection applications.

Q:What are the different types of steel pipe valves?: There are several different types of steel pipe valves that are commonly used in various industries and applications. Here are some of the most common types: 1. Gate valves: These valves are designed to control the flow of fluid by lifting or lowering a gate or wedge that obstructs the flow path. They provide a tight seal when closed and are commonly used in applications that require a full flow or complete shut-off. 2. Globe valves: Globe valves have a globe-shaped body and a movable plug or disc that regulates the flow of fluid. They offer good throttling capabilities and are used in applications where precise control of flow is required. 3. Ball valves: Ball valves use a rotating ball with a hole in it to control the flow of fluid. When the hole is aligned with the pipe, the valve is fully open, and when the hole is perpendicular to the pipe, the valve is closed. Ball valves are durable, reliable, and commonly used in applications that require quick and easy shut-off. 4. Check valves: Check valves allow fluid to flow in only one direction and prevent backflow. They are often used to prevent damage to pumps, compressors, and other equipment by preventing reverse flow. 5. Butterfly valves: Butterfly valves have a disc that rotates within the pipe to control the flow of fluid. They are lightweight, compact, and offer a quick shut-off. Butterfly valves are commonly used in large-scale applications such as water treatment and HVAC systems. 6. Plug valves: Plug valves have a cylindrical or conical plug that rotates within the valve body to control flow. They are simple in design, easy to operate, and offer reliable shut-off capabilities. Plug valves are commonly used in applications that require frequent operation and high pressure ratings. 7. Diaphragm valves: Diaphragm valves use a flexible diaphragm to control the flow of fluid. When the diaphragm is pressed against the valve seat, the flow is blocked, and when the diaphragm is lifted, the flow is allowed. Diaphragm valves are commonly used in applications that require a sterile or hygienic environment. These are just a few examples of the different types of steel pipe valves available in the market. The choice of valve depends on the specific application requirements, such as flow rate, pressure, temperature, and the type of fluid being transported.

Q:What are the different types of pipe coatings used for corrosion protection?: There are several different types of pipe coatings used for corrosion protection. These coatings are applied to the exterior surface of pipes to prevent or delay corrosion, ensuring the longevity and integrity of the pipes. Some of the commonly used pipe coatings for corrosion protection include: 1. Fusion-Bonded Epoxy (FBE) Coatings: FBE coatings are widely used for corrosion protection due to their excellent adhesion and resistance to chemicals, moisture, and abrasion. These coatings are applied by heating the pipe and spraying it with epoxy powder, which then melts and forms a protective layer upon cooling. 2. Polyethylene (PE) Coatings: PE coatings are known for their flexibility and resistance to impact and chemicals. These coatings are typically applied by extrusion or wrapping methods and provide excellent resistance against water, soil, and other corrosive substances. 3. Polyurethane (PU) Coatings: PU coatings offer good resistance to chemicals, moisture, and mechanical damage. They are commonly used for underground pipelines and are applied by spraying or brush coating methods. 4. Coal-Tar Enamel Coatings: Coal-tar enamel coatings are suitable for protecting pipes exposed to highly corrosive environments such as marine conditions or underground applications. They are typically applied by hot or cold wrapping methods and provide excellent resistance to water, acids, and alkalis. 5. Metallic Coatings: Metallic coatings such as zinc, aluminum, or zinc-aluminum alloys are often used as sacrificial coatings to protect the underlying steel pipes. These coatings corrode preferentially, sacrificing themselves to protect the pipe from corrosion. 6. Asphalt Coatings: Asphalt coatings provide a robust barrier against moisture, chemicals, and soil. They are typically applied by hot or cold wrapping methods and are commonly used for underground pipelines. It is important to consider factors such as the specific environment, temperature, and expected lifespan of the pipes when selecting the appropriate type of pipe coating for corrosion protection.

Q:Can steel pipes be used for transporting chemicals?: Yes, steel pipes can be used for transporting chemicals. Steel pipes are known for their strength, durability, and resistance to corrosion, making them suitable for handling various chemicals. Additionally, steel pipes can withstand high pressure and temperature conditions, ensuring safe transportation of chemicals.

Q:Can steel pipes be used for steam distribution?: Yes, steel pipes can be used for steam distribution. Steel pipes are commonly used in steam distribution systems due to their high strength, durability, and resistance to high temperatures and pressure. They can effectively handle the transportation of steam in various industries such as power generation, chemical processing, and heating systems.

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