Large diameter longitudinal submerged arc welded pipe

Large diameter longitudinal submerged arc welded pipe System 1

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 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)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

2.Large diameter longitudinal submerged arc welded pipe Size:

OD: 406.4MM-1422MM (16”-56”)

Thickness: 8MM-50.8MM depends on OD

3. Packing & Delivery

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

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

4.Large diameter longitudinal submerged arc welded pipe 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. Large diameter longitudinal submerged arc welded pipe Products Showroom:

LSAW carbon welded pipe

carbon LSAW Welded Pipe

LSAW

Q:Can steel pipes be used for underground fuel storage tanks?: Yes, steel pipes can be used for underground fuel storage tanks. Steel pipes are commonly used for various applications, including underground storage tanks for fuel. They are strong, durable, and resistant to corrosion, making them suitable for long-term storage of fuels such as gasoline, diesel, and oil. Additionally, steel pipes can be easily welded together to create a seamless and secure tank structure. However, it is important to ensure that the steel pipes used for underground fuel storage tanks are properly coated with corrosion-resistant materials to protect them from any potential damage caused by exposure to moisture or the chemicals present in the fuel. Regular inspection and maintenance are also necessary to ensure the integrity of the tank and prevent any leaks or environmental hazards.

Q:What are the different grades of steel used in pipe manufacturing?: There are various grades of steel used in pipe manufacturing, including carbon steel, stainless steel, alloy steel, and high-strength low-alloy (HSLA) steel. Each grade has different characteristics and properties, making them suitable for specific applications and environments.

Q:How are steel pipes used in the manufacturing of heat exchangers?: Steel pipes are commonly used in the manufacturing of heat exchangers due to their high strength and durability. They serve as the primary components for carrying hot or cold fluids within the heat exchanger system. The steel pipes facilitate the efficient transfer of heat between the two fluids by offering excellent thermal conductivity. Additionally, the corrosion-resistant properties of steel ensure the longevity and reliability of the heat exchanger, making it suitable for various industrial applications.

Q:What is the difference between steel pipes and ductile iron pipes?: Steel pipes and ductile iron pipes are both commonly used for various applications in the construction industry, but they differ in their composition and properties. Steel pipes are primarily made from an alloy of iron and carbon, with small amounts of other elements. They are known for their high tensile strength and durability, making them suitable for transporting fluids and gases under high pressure. Steel pipes are more resistant to corrosion than ductile iron pipes, and they can withstand extreme temperatures and environmental conditions. On the other hand, ductile iron pipes are made from an alloy of iron, carbon, and small amounts of other elements like silicon and magnesium. These pipes are characterized by their high strength, impact resistance, and flexibility. Ductile iron pipes are often used for water and sewage transportation due to their corrosion resistance and ability to withstand ground movement and heavy loads. In summary, steel pipes are known for their strength, durability, and corrosion resistance, while ductile iron pipes offer greater flexibility and impact resistance. The choice between the two depends on the specific application requirements and environmental conditions.

Q:Outside diameter 60, thickness 3.5 seamless steel tube, how many kilograms per meter?: Steel tube Kg/m (including seamless steel tubes and welded tubes) theoretical formula per meter weight: W=0.02466 * S * (D-S)Of which: S - wall thickness (mm), D - steel tube diameter (mm), W - kg / M

Q:How are steel pipes protected against abrasive wear?: Steel pipes are protected against abrasive wear through various methods such as lining the interior of the pipes with abrasion-resistant materials, applying protective coatings on the pipe surface, or using ceramic tiles or liners. These measures help minimize the effects of friction and abrasion, ensuring the longevity and durability of the steel pipes.

Q:How are steel pipes marked for identification?: Steel pipes are typically marked for identification using various methods such as color coding, stenciling, engraving, or applying tags with relevant information such as size, grade, manufacturer, and specifications.

Q:How do you join steel pipes together?: Steel pipes can be joined together using various methods, including welding, threading, and using mechanical couplings.

Q:What is the average lifespan of steel pipes?: The average lifespan of steel pipes varies depending on various factors such as their quality, usage, and maintenance. However, under normal conditions, well-maintained steel pipes can last for several decades or even longer.

Q:How are steel pipes used in underground drainage systems?: Steel pipes are commonly used in underground drainage systems due to their durability and strength. They are typically used to carry and transport wastewater and stormwater away from buildings and structures to a designated disposal area or treatment facility. The corrosion-resistant nature of steel pipes ensures a long lifespan, making them a reliable choice for underground drainage applications. Additionally, steel pipes can withstand high water pressure and are often used in larger diameter pipes to handle a higher volume of water flow.

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