Many varieties of large diameter longitudinal submerged arc welded Pipe

Many varieties of large diameter longitudinal submerged arc welded Pipe System 1

Many varieties of large diameter longitudinal submerged arc welded Pipe

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 6000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Seamless Steel Tubes For Elevated Temperatures

ASTM 53 ERW welded pipes--Tube and Pipe

Oil Tubing / Petroleum Pipe

Hot-rolled seamless steel tubes for hydraulic pillar service

Seamless Steel Pipe of Top Supplier

Seamless steel tube balck ASTMA106 GRADE B

Seamless steel pipe ASTM A106/API 5L/ASTM A53 high quality

Galvanized Pipe America Standard A53 200g Hot Dipped or Pre-galvanized Pipe

Product Description:

1.Specification of large diameter longitudinal submerged arc welded pipe:

1)Grade:API 5L GR.B, X40, X42, X52, X56, X60, X65, X70.ST37/37-2,ST33,ST35.8,ST35.4.GB 9711.1/SY5037/GB3092

2)Application: It is widely applied to line pipe in oil and sewage transportation , and it is used in Low pressure liquid and gassy transportation and it is also good Structure pipe in building and bridge field.

3)Standard:ASTM A53,ASTM A671 ,ASTM A672 .ASTM A252 API 5L (PSL-1,PSL-2) ,API 5L 2B ,2H,2W.DIN1626,DIN17175,DIN1629.JISG 3452,JISG3457/3456,JISG3461.GB 9711.1/SY5037/GB3092

2.large diameter longitudinal submerged arc welded pipe size:

OD: 406.4MM-1422MM (16”-56”)

Thickness: 8MM-50.8MM depends on OD

3. Mechanical Properties and Chemical Composition for large diameter longitudinal submerged arc welded pipe:

Standard	Grade	（MPa）		（MPa）
		Yield strength		Tensile Strength
API SPEC 5L	PSL1
	B	≥241		≥414
	×42	≥290		≥414
	×46	≥317		≥434
	×52	≥359		≥455
	×56	≥386		≥490
	×60	≥414		≥517
	×65	≥448		≥531
	×70	≥483		≥565
	PSL2
		Min	Max	Min	Max
	B	241	448	441	758
	×42	290	496	414	758
	×46	317	524	434	758
	×52	359	531	455	758
	×56	386	544	490	758
	×60	414	565	517	758
	×65	448	600	531	758
	×70	483	621	565	758

Chemical Composition(%)

Standard	Grade	C	Mn	P	S	CEV
	Grade	Max	Max	Max	Max	Max
	PSL1					-
	B	0.26	1.2	0.030	0.030
	×42	0.26	1.3	0.030	0.030
	×46,×52,×56，X60	0.26	1.4	0.030	0.030
	X65	0.26	1.45	0.030	0.030
	X70	0.26	1.65	0.030	0.030
	PSL2					0.43
	B	0.22	1.20	0.025	0.015
	×42	0.22	1.30	0.025	0.015
	×46,×52,×56, X60	0.22	1.40	0.025	0.015
	X65	0.22	1.45	0.025	0.015
	X70	0.22	1.65	0.025	0.015

4. Packing & Delivery for pipes:

Packing Detail: bundles with anti-rust painting and with plastic caps

Delivery Term: 30 days after receving payment or L/C

5. Products pictures for large diameter longitudinal submerged arc welded pipe:

LSAW carbon welded pipe

carbon LSAW Welded Pipe

LSAW

6、FAQ of large diameter longitudinal submerged arc welded pipe:

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Q: How do steel pipes handle ground settlement?: One possible alternative: Due to their robustness and durability, steel pipes are highly suitable for managing ground settlement. The pipes' flexibility and strength enable them to endure the shifting and settling of the ground with minimal damage. Their high resistance to deformation ensures that they can maintain their shape and structural integrity even when the ground settles or moves. When the ground settles, steel pipes can flex and bend slightly to accommodate the movement. This flexibility allows them to adapt to changes in the ground without experiencing breakage or cracking. Additionally, steel pipes often incorporate joints designed to absorb and distribute stress caused by ground settlement. Moreover, steel pipes possess a smooth interior surface that reduces friction and resistance to material flow. This characteristic becomes particularly crucial when the ground settles, as it diminishes the chances of blockages or clogs due to debris or sediment settling inside the pipes. In conclusion, steel pipes possess the necessary strength, flexibility, and resistance to deformation to effectively handle ground settlement. They can adapt to ground movement without compromising their structural integrity, making them a dependable choice for various applications such as underground infrastructure and pipeline systems.

Q: What is hot rolled steel pipe? What is a cold drawn steel tube?: Seamless steel pipe, hot-rolled and cold-rolled (DIAL) seamless steel pipe two categories.Hot rolled steel tubes are divided into ordinary steel tubes, low and medium pressure boiler tubes, high pressure boiler tubes, alloy steel pipes, stainless steel pipes, oil cracking pipes, geological steel pipes and other steel pipes, etc..Cold rolled seamless steel pipe (DIAL) in general, steel pipe for low and medium pressure boiler tube, high-pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, oil cracking tube and other steel tube, including carbon thin-walled steel, alloy thin-walled steel, stainless steel, thin steel tube. The outer diameter of hot-rolled seamless tube is generally greater than 32mm, the wall thickness is 2.5-75mm. The outer diameter of cold-rolled seamless steel tube can reach 6mm, the wall thickness can be up to 0.25mm, the outer diameter of thin-wall pipe can be 5mm, the wall thickness is less than 0.25mm, and cold rolling has higher precision than hot rolling dimension.

Q: What are the specific differences between flexible pipes and rigid pipes?: Watch from outside:The rigid waterproof sleeve is made up of steel bushing and wing ring, and the structure is simple;The flexible waterproof sleeve mainly consists of flange sleeve, sealing ring, flange, pressure plate, wing ring, bolt and nut. The structure is complicated.

Q: What are the different types of steel pipe caps?: There are several different types of steel pipe caps, each designed for specific purposes and applications. Some common types include: 1. Threaded Caps: These caps have internal threads that allow them to be screwed onto the end of a threaded pipe, providing a secure seal. They are commonly used in plumbing and gas applications. 2. Socket Weld Caps: These caps are designed to be welded onto the end of a pipe using a socket weld connection. They provide a strong and permanent seal, making them suitable for high-pressure and high-temperature applications. 3. Butt Weld Caps: Similar to socket weld caps, butt weld caps are also used for welding onto the end of a pipe. However, they are specifically designed for butt welding, which involves welding the cap directly to the pipe without any additional fittings. 4. Domed Caps: These caps have a domed or rounded shape on the upper surface, providing a smooth and aesthetically pleasing finish. They are commonly used in architectural and decorative applications, such as handrails or fence posts. 5. Flat Caps: As the name suggests, flat caps have a flat surface on the upper side. They are often used when a simple and low-profile cap is required, such as for protecting the ends of pipes in industrial applications. 6. Blind Caps: Blind caps are used to seal off the end of a pipe permanently. They are solid caps without any openings or threads, ensuring a complete closure. They are commonly used in piping systems where a section of the pipeline is not in use or needs to be closed off temporarily. These are just a few examples of the different types of steel pipe caps available. The choice of cap depends on the specific requirements of the application, such as the type of connection, pressure, temperature, and the need for structural or decorative finishes. It is important to select the appropriate cap to ensure a secure and reliable seal for the pipe.

Q: Can steel pipes be used for conveying sewage sludge?: Indeed, sewage sludge can be conveyed using steel pipes. Steel pipes possess several properties that render them suitable for this purpose. Firstly, their strength and durability enable them to endure the pressure and weight of sewage sludge without collapsing or fracturing. This is of utmost importance as sewage sludge can be quite heavy and may contain solids that could exert stress on the pipes. Secondly, steel pipes exhibit resistance to corrosion, which is crucial when conveying sewage sludge that frequently contains corrosive components. By utilizing corrosion-resistant steel pipes, one can ensure a prolonged lifespan and minimize the risk of leaks or damage. Moreover, steel pipes can be manufactured in various sizes and diameters, granting flexibility in the design of sewage systems to meet specific requirements. Nonetheless, it is vital to emphasize the necessity of proper maintenance and regular cleaning to prevent sludge buildup and maintain the pipes' efficiency.

Q: What are the different coatings applied to steel pipes?: There are several different coatings applied to steel pipes, including epoxy coatings, polyethylene coatings, zinc coatings (galvanization), and fusion bonded epoxy coatings. These coatings are used to protect the steel pipes from corrosion, increase their durability, and improve their performance in various environments.

Q: What are the different grades of steel used for manufacturing pipes?: The different grades of steel used for manufacturing pipes include carbon steel, alloy steel, stainless steel, and duplex steel.

Q: Can steel pipes be used for conveying gases?: Yes, steel pipes can be used for conveying gases. Steel pipes are commonly used in various industries, including oil and gas, petrochemical, and construction, for transporting various types of gases such as natural gas, air, and hydrogen. Steel pipes offer several advantages for gas transportation. They are strong and durable, able to withstand high pressure and temperature conditions. Steel pipes also have excellent resistance to corrosion and can effectively prevent gas leakage, ensuring the safety and reliability of the gas transportation system. Additionally, steel pipes have a smooth internal surface, which minimizes the frictional resistance and allows for efficient gas flow. Overall, steel pipes are a reliable and widely-used option for conveying gases in various applications.

Q: How are steel pipes cleaned and flushed?: Depending on specific requirements and conditions, different methods can be used to clean and flush steel pipes. One way to achieve this is through mechanical cleaning, which involves physically removing debris, rust, or scale from the inner surface of the pipes using wire brushes, scrapers, or other abrasive tools. This method is effective in removing loose or easily detachable contaminants. Chemical cleaning is another commonly used method, especially for pipes with stubborn deposits or rust. Various chemicals or cleaning agents are flushed through the pipes to dissolve or loosen the buildup, which can then be washed away. Acid-based solutions are often used for this purpose, but it's crucial to select the appropriate chemical and concentration to prevent pipe damage. High-pressure water jetting is an effective technique for cleaning and flushing steel pipes. Water is pumped at high pressure through a nozzle, generating a powerful jet that dislodges and removes debris or deposits from the pipe walls. This method is particularly useful for eliminating hard or compacted materials that are difficult to remove by other means. In some cases, a combination of these methods may be necessary to achieve the desired cleanliness. For example, mechanical tools can be used for pre-cleaning, followed by chemical cleaning or high-pressure water jetting to ensure thorough flushing and contaminant removal. Regular maintenance and cleaning of steel pipes are crucial to maintain efficiency and prevent corrosion. It's important to adhere to proper procedures and safety guidelines when cleaning and flushing steel pipes to achieve effective results and prevent any damage to the pipes.

Q: What are the factors to consider when selecting a steel pipe for a specific application?: When selecting a steel pipe for a specific application, there are several key factors to consider. These include the desired strength and hardness of the pipe, its corrosion resistance, its ability to withstand high temperatures or extreme conditions, its compatibility with the intended fluid or gas, the required dimensions and specifications, as well as the cost and availability of the pipe. It is also important to assess the specific requirements and demands of the application to ensure the selected steel pipe will meet the desired performance and longevity.

Send your message to us

*Email

*TEL

*Quantity

*Unit