Selling all kinds of large diameter longitudinal submerged arc welded pipe

Selling all kinds of large diameter longitudinal submerged arc welded pipe System 1

Selling all kinds of large diameter longitudinal submerged arc welded pipe

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 6000 m.t./month

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Product Description:

1.Specification of LSAW Welded Steel Pipes:

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)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

3)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

OD: 406.4MM-1422MM (16”-56”)

Thickness: 8MM-50.8MM depends on OD

2. Packing & Delivery:

Packaging Details:	seaworthy package,bundles wrapped with strong steel strip
Delivery Detail:	15-30days after received 30%TT

3. LSAW Welded Steel Pipes Data Sheet:

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

5. LSAW Welded Steel Pipes Products Showroom:

LSAW carbon welded pipe

carbon LSAW Welded Pipe

LSAW

Q: How are steel pipes used in the telecommunications network infrastructure?: Steel pipes are commonly used in the telecommunications network infrastructure as a means of protecting and housing underground cables. These pipes provide a durable and secure pathway for the cables, safeguarding them from environmental factors such as moisture, extreme temperatures, and physical damage. Additionally, steel pipes offer excellent strength and rigidity, allowing for the installation of multiple cables within a single pipe, thereby reducing costs and simplifying maintenance.

Q: How are steel pipes used in desalination plants?: Steel pipes are used in desalination plants to transport and distribute the seawater and treated water throughout the facility. They are durable and resistant to corrosion, ensuring the efficient and reliable movement of water in the desalination process.

Q: How are steel pipes transported and stored?: Steel pipes are typically transported using specialized trucks, trains, or ships, depending on the distance and quantity. They are often stacked and secured with straps or chains to prevent movement during transportation. Once at the storage site, steel pipes are usually stored in an organized manner, either horizontally on racks or vertically in designated areas. It is crucial to keep them protected from moisture, corrosion, and physical damage, so they are often covered or stored indoors.

Q: How do steel pipes perform in high-temperature environments?: Steel pipes perform well in high-temperature environments due to their excellent heat resistance and thermal conductivity. The strength and structural integrity of steel pipes remain largely unaffected, making them ideal for applications such as steam lines, boiler tubes, and high-temperature industrial processes.

Q: What is the maximum length of steel pipes available in the market?: The maximum length of steel pipes available in the market can vary depending on the specific supplier and industry requirements. However, standard lengths typically range from 20 to 40 feet.

Q: What are the thermal properties of steel pipes?: Steel pipes have excellent thermal conductivity, meaning they can efficiently transfer heat. They also have a high melting point and can withstand high temperatures without deformation. Additionally, steel pipes have low thermal expansion, allowing them to maintain their shape and structural integrity even when exposed to extreme temperature changes.

Q: How to distinguish between steel pipe and spiral pipe material?: Steel pipe according to the pipe material (ie steel) can be divided into: carbon tube and alloy tube, stainless steel tube.Carbon tube can be divided into ordinary carbon steel tube and high quality carbon structure tube.

Q: What's the difference between steel pipe and pipe fittings?: Pipe fittings: parts that connect pipes to pipes. According to the connection method can be divided into socket type pipe fittings, threaded fittings, flange pipe fittings and welding pipe fittings four kinds. Multipurpose; made of the same material as pipes. Elbow (elbow), flange, three pipe and four pipe (crosshead) and reducer (reducer) etc.. Elbow for pipeline corner; flange for the pipe and pipe interconnected parts, connected to the pipe end, three pipe for three pipe collection; four pipe for four tubes together place; for two pipes of different diameters connected to different diameter pipe.

Q: What are the different types of steel pipe supports for overhead piping?: There are several types of steel pipe supports for overhead piping, including beam clamps, pipe hangers, clevis hangers, and riser clamps.

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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