Api 5l Erw

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API 5L ERW refers to steel pipes that comply with the specifications outlined in API (American Petroleum Institute) Standard 5L and are manufactured using the Electric Resistance Welding (ERW) process. API 5L is a widely recognized standard that governs the manufacturing and use of steel pipes for the transportation of natural gas, oil, and other hydrocarbon-based fluids in the petroleum and natural gas industries

 

API 5L is a standard developed by the American Petroleum Institute to ensure the quality and performance of steel pipes used in the transportation of hydrocarbon-based fluids. It covers various grades and types of pipes, including ERW.

Chemical composition and mechanical properties at room temperature
Chemical composition (Ladle)				Mechanical properties at room temperature
C Max.	Mn Max.	P Max.	S Max.	Tensile Strength, Rm	Yield Strength, Re (min.)	Elongation on Gauge Length
						L0 = 5.65 S0 A (min.)
%	%	%	%	N/mm2	N/mm2	%
0.2	1.2	0.045	0.045	320 to 460	195	20

 

Outside Diameter			Wall Thickness
INCH	DN	mm	mm
1/2"	15	20-21.3	0.95-2.77
3/4"	20	25-26.9	1.1-2.87
1"	25	32-33.7	1.1-4
1-1/4"	32	40-42.4	1.1-4
1-1/2"	40	47-48.3	1.5-7
2"	50	58-60.3	1.8-7
2-1/2"	65	73-76.1	2.0-7
3"	80	87-88.9	2.2-8
4"	100	113-114.3	2.2-9
5"	125	140-141.3	2.5-10
6"	150	165-168.3	2.5-10
8"	200	216-219.1	2.75-12
10"	250	272.8-273.2	5.0-13.75

 

 

API 5L ERW pipes are typically made from carbon steel or low-alloy steel, depending on the grade and specific requirements of the application. The choice of material is influenced by factors such as the fluid being transported, operating temperature, and pressure conditions.ERW pipes are manufactured by forming a flat steel strip or coil into a cylindrical shape and then welding the longitudinal seam using electric resistance welding. This process results in a strong and consistent weld along the length of the pipe.

API 5L ERW pipes are available in different grades, such as API 5L Grade B, X42, X52, X60, X65, and others. The selection of the grade depends on the specific service conditions and requirements.

 

API 5L ERW pipes are primarily used for the construction of pipelines for the transportation of natural gas, oil, and other hydrocarbon-based fluids. They are also used in various infrastructure projects, including water and wastewater pipelines.

 

 

 

 

 

 

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