Large diameter longitudinal submerged arc welded pipe API

Large diameter longitudinal submerged arc welded pipe API System 1

Large diameter longitudinal submerged arc welded pipe API

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 12000 m.t./month

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Product Description:

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

1)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.

2)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

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.Size of large diameter longitudinal submerged arc welded pipe:

OD: 406.4MM-1422MM (16”-56”)

Thickness: 8MM-50.8MM depends on OD

3.Data Sheet for large diameter longitudinal submerged arc welded pipe:

Standard: APISPEC 5L

Mechanical Properties

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

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

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

5. Products picture 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: What is the difference between steel pipe and fiberglass pipe?: Steel pipe and fiberglass pipe differ in terms of their material composition, flexibility, resistance to corrosion, and cost. Steel pipe is made of an alloy of iron and carbon, known for its strength and durability, making it a popular choice for plumbing, construction, and industrial projects. In contrast, fiberglass pipe is composed of glass fibers embedded in a resin matrix, resulting in a lightweight and corrosion-resistant material suitable for applications requiring chemical resistance. Another contrasting factor between steel pipe and fiberglass pipe is their level of flexibility. Steel pipe is rigid and stiff, while fiberglass pipe offers greater flexibility, allowing it to bend and conform to different shapes and contours. This flexibility makes fiberglass pipe easier to install in tight spaces or areas with complex geometries. Corrosion resistance is another significant difference between the two materials. Steel pipe is susceptible to corrosion, particularly in environments with high moisture or chemical exposure. To counteract this, steel pipes are often coated or lined with corrosion-resistant materials. In contrast, fiberglass pipe is inherently resistant to corrosion due to its construction, making it a preferred choice for applications in saltwater environments or chemical processing plants. Cost is yet another factor that sets steel pipe and fiberglass pipe apart. Generally, steel pipe is more affordable than fiberglass pipe, especially for smaller diameter pipes. However, as the diameter and pressure rating increase, the cost of steel pipe can exceed that of fiberglass pipe. Additionally, fiberglass pipe requires less maintenance and has a longer lifespan, which can offset the initial cost difference over time. In conclusion, the differences between steel pipe and fiberglass pipe can be summarized in terms of their material composition, flexibility, corrosion resistance, and cost. The choice between these two types of pipes depends on various project requirements, including the application, environment, budget, and expected lifespan.

Q: What are the common applications of galvanized steel pipes?: Galvanized steel pipes are commonly used in various industries and applications such as plumbing, water supply systems, gas pipelines, electrical conduits, construction projects, fencing, and outdoor structures. The galvanization process adds a protective zinc coating to the steel, making it resistant to corrosion and extending its lifespan, making it ideal for applications requiring durability and longevity.

Q: How are steel pipes used in the construction of natural gas power plants?: Steel pipes are used in the construction of natural gas power plants for various purposes such as transporting natural gas from the source to the plant, distributing gas within the facility, and carrying exhaust gases away from the plant. They are essential for maintaining a safe and efficient flow of natural gas throughout the power plant's infrastructure.

Q: How are steel pipes used in the manufacturing of appliances?: Steel pipes are commonly used in the manufacturing of appliances as they provide a durable and reliable solution for various applications. They are used for carrying fluids, gases, and even electrical wiring within appliances due to their high strength and resistance to corrosion. Additionally, steel pipes are also utilized for structural support and framing, ensuring the stability and longevity of appliances.

Q: Seamless steel tube 89X4 meters, how heavy?: Generally seamless steel pipe wall thickness will be uneven, according to the theory, each meter is 8.3844 kilograms, but if the wall thickness is poor 20--30 wire, then the weight will increase some

Q: How are steel pipes used in the telecommunications industry?: Steel pipes are used in the telecommunications industry primarily for the installation and protection of underground fiber optic cables. These pipes provide a sturdy and durable infrastructure for the cables, ensuring their safety from external factors such as weather conditions or accidental damage. Additionally, steel pipes are also used for the construction of telecommunication towers, providing the necessary strength and support for antennas and other equipment.

Q: What are the advantages of PVC pipe and galvanized steel pipe?: This is different in different fields, in fact, the combination of PVC pipe and galvanized steel pipe becomes plastic steel pipe.The steel plastic pipe is in the internal and external combined with a layer of plastic pipe material and obtained a pipe, it has high mechanical strength, the steel pipe has the advantages of high impact resistance, and corrosion resistance of plastic material, has the advantages of high and low grade health fluid resistance and scaling.The steel pipe used by our company is produced by Benxi Steel, which is well known both at home and abroad. It has the advantages of low phosphorus, low sulfur and high mechanical performance. It can meet the requirements of users.

Q: What are the common defects found in steel pipes?: Some common defects found in steel pipes include corrosion, cracks, dents, and leaks. Other defects may include misalignment or misshapen sections, improper welding, and brittleness.

Q: Can steel pipes be used for underground sewer lines?: Yes, steel pipes can be used for underground sewer lines.

Q: How are steel pipes protected against rust?: Steel pipes are protected against rust through a variety of methods. One common method is by applying a protective coating to the pipes. This can be done by using a layer of paint, epoxy, or a corrosion-resistant coating such as zinc or galvanized coatings. These coatings act as a barrier between the steel and moisture, preventing the formation of rust. Another method of protecting steel pipes against rust is by using cathodic protection. This involves the use of sacrificial anodes, typically made of zinc or magnesium, which are attached to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves and preventing rust formation on the pipes. In addition to coatings and cathodic protection, steel pipes can also be protected against rust by using corrosion inhibitors. Corrosion inhibitors are chemicals that are added to the water or fluid flowing through the pipes. These chemicals form a protective film on the surface of the steel, inhibiting the corrosion process and preventing rust from forming. Regular maintenance and inspections are also crucial in protecting steel pipes against rust. Any signs of damage or wear on the protective coatings should be addressed promptly to prevent rust from developing. Additionally, ensuring that the pipes are properly cleaned and dried before applying any protective coatings can also help in enhancing their effectiveness. Overall, a combination of protective coatings, cathodic protection, corrosion inhibitors, and regular maintenance is employed to ensure that steel pipes are effectively protected against rust and corrosion, prolonging their lifespan and maintaining their structural integrity.

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