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

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

Line Pipe

Seamless Carbon Steel Tubes

Hot-rolled seamless steel tubes for hydraulic pillar service

API 5L Seamless line Pipe J55

Seamless Steel Alloy Pipe with Factory Price

Seamless steel pipe balck ASTM A106/A53 GRADE B

Seamless steel tube API,GB,ASTM,ASME,DIN

Galvanized Pipe America-Standard ASTM A53 100g/200g Hot Dipped Pipe

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 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: Can steel pipes be used for water supply systems?: Yes, steel pipes can be used for water supply systems. They are commonly used in many industrial and commercial applications due to their durability and strength. However, it is important to note that steel pipes need to be properly coated or lined to prevent corrosion and ensure water quality. Additionally, steel pipes may require more maintenance compared to other materials like PVC or copper.

Q: What is the maximum allowable deflection for steel pipes?: The maximum allowable deflection for steel pipes depends on various factors such as pipe diameter, wall thickness, material strength, and the intended application. It is typically determined by industry standards and specific engineering considerations.

Q: Are steel pipes resistant to ultraviolet (UV) radiation?: Ultraviolet (UV) radiation poses a threat to steel pipes as they do not possess inherent resistance. This type of radiation has the potential to induce degradation and discoloration in various materials, including steel. However, the extent of harm inflicted depends on several factors, including steel type, duration and intensity of UV exposure, and the presence of protective coatings or finishes on the pipes. Generally, uncoated steel pipes are more vulnerable to UV damage compared to those treated with protective coatings or finishes. Coatings such as epoxy or polyethylene act as a shield against UV radiation, effectively preventing steel degradation and discoloration. Hence, it becomes crucial to consider the specific application and environment when selecting steel pipes and implementing suitable protective measures to ensure their durability and performance.

Q: What are the different types of couplings used with steel pipes?: There are several types of couplings used with steel pipes, including threaded couplings, slip-on couplings, compression couplings, and grooved couplings.

Q: How are steel pipes used in the mining and mineral processing industry?: Steel pipes are used in the mining and mineral processing industry for various purposes such as transporting fluids, conveying materials, and providing structural support. They are commonly used in the construction of underground mine shafts, pipelines, and equipment for transporting and processing minerals. The durability and strength of steel pipes make them ideal for withstanding the harsh conditions and demanding requirements of the mining industry.

Q: How do you calculate the pipe pressure drop coefficient for steel pipes?: To calculate the pipe pressure drop coefficient for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the pressure drop in a pipe to various factors such as the flow rate, pipe diameter, pipe length, and the properties of the fluid being transported. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is denoted by the symbol f. It is a dimensionless parameter that represents the resistance to flow in the pipe. The value of f depends on the flow regime, which can be laminar or turbulent. For laminar flow, which occurs at low flow rates or with viscous fluids, the pressure drop coefficient can be calculated using the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, which occurs at higher flow rates, the calculation of the pressure drop coefficient is more complex. It depends on the roughness of the pipe wall, which affects the flow resistance. The roughness is typically quantified using the relative roughness, which is the ratio of the pipe wall roughness to the pipe diameter. To calculate the pressure drop coefficient for turbulent flow in steel pipes, you can use empirical correlations or Moody's diagram. Moody's diagram provides a graphical representation of the friction factor as a function of the Reynolds number and the relative roughness. The Reynolds number represents the flow regime and is calculated using the fluid properties, flow rate, and pipe dimensions. By finding the intersection of the Reynolds number and relative roughness on Moody's diagram, you can determine the corresponding pressure drop coefficient. It's important to note that the pressure drop coefficient for steel pipes may vary depending on the specific pipe dimensions, surface roughness, and fluid properties. Therefore, it is recommended to consult relevant standards or engineering references for accurate and up-to-date values of the pressure drop coefficient for steel pipes in your specific application.

Q: Can steel pipes be used for water supply networks?: Yes, steel pipes can be used for water supply networks. They are commonly used for water distribution due to their durability, strength, and corrosion resistance. However, proper coating and maintenance are essential to prevent rusting and ensure the longevity of the steel pipes in water supply systems.

Q: Can steel pipes be recycled after their useful life?: Yes, steel pipes can be recycled after their useful life. Steel is a highly recyclable material, and old steel pipes can be melted down and repurposed to create new steel products. Recycling steel pipes helps conserve natural resources and reduces the environmental impact associated with mining and manufacturing new steel.

Q: Are steel pipes resistant to chemicals?: Yes, steel pipes are generally resistant to chemicals. They have excellent corrosion resistance properties, making them suitable for transporting various chemicals in industries such as oil and gas, chemical processing, and wastewater treatment. However, the level of resistance can vary depending on the specific type of chemical and the grade of steel used. In some cases, additional protective coatings may be required to enhance chemical resistance.

Send your message to us

*Email

*TEL

*Quantity

*Unit