State Of The Art LSAW Pipe

The longitudinal submerged arc welded pipe is manufactured using steel plate as the raw material, which is shaped by a forming machine and then subjected to double-sided submerged arc welding. This process results in the LSAW pipe exhibiting excellent ductility, toughness, uniformity, plasticity, and good sealing performance.

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LSAW Pipe description

The longitudinal submerged arc welded pipe is a high-quality, efficient, and reliable welded steel pipe with numerous advantages and a broad range of applications. It not only fulfills the requirements of various industries but also possesses excellent anti-corrosion properties, thereby extending the service life of the steel pipes. Additionally, this type of steel pipe exhibits good wear resistance and impact resistance, making it suitable for use in diverse and challenging environments. As a result, it finds extensive use in the petroleum, chemical, natural gas, water supply, and drainage industries. Furthermore, it offers a wide range of pipe diameters and wall thicknesses, catering to the diverse needs of different sectors.

Product Parameters

Product Name	LSAW pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter	406mm-4500mm
Wall Thickness	8-100mm
Length	5.8 meters-12.5 meters, Support customization
Manufacturing Type	Longitudinal submerged arc welded pipe and welded steel pipe
Scope of Application	Longitudinal submerged arc welded pipe products are well-suited for a wide range of applications, including oil and natural gas transmission pipelines, construction steel structures, urban pipeline networks, mining coal water slurry pipelines, high-voltage transmission lines, wind power generation, bridges, and high-speed railways.

Product Material

Standard	Material
ASTM A53	A53GR.B
ASTM A252	A252 GR.2, ASTM A252 GR.3
GB/T3091	Q195, Q235B, Q345A, Q345B
API 5L	Gr.B, X42, X46, X52, X56, X60, X65, X70, X80
GB/T9711-2011	L210, L245, L290, L320, L360, L390, L415, L450, L485
EN 10219	S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H
A671/A672 CL10-CL13	CA55, B65, B70, C70

Chemical Composition & Mechanical Properties

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
Standard	Grade	C	Mn	Si	S	P	Yield Strength (Mpa)	Tensile Strength (Mpa)
GB/T700-2006	A	0.22	1.4	0.35	0.050	0.045	235	370
	B	0.2	1.4	0.35	0.045	0.045	235	370
	C	0.17	1.4	0.35	0.040	0.040	235	370
	D	0.17	1.4	0.35	0.035	0.035	235	370
GB/T1591-2009	A	0.2	1.7	0.5	0.035	0.035	345	470
	B	0.2	1.7	0.5	0.030	0.030	345	470
	C	0.2	1.7	0.5	0.030	0.030	345	470
BS En10025	S235JR	0.17	1.4	-	0.035	0.035	235	360
	S275JR	0.21	1.5	-	0.035	0.035	275	410
	S355JR	0.24	1.6	-	0.035	0.035	355	470
DIN 17100	ST37-2	0.2	-	-	0.050	0.050	225	340
	ST44-2	0.21	-	-	0.050	0.050	265	410
	ST52-3	0.2	1.6	0.55	0.040	0.040	345	490
JIS G3101	SS400	-	-	-	0.050	0.050	235	400
JIS G3101	SS490	-	-	-	0.050	0.050	275	490
API 5L PSL1	A	0.22	0.9	-	0.03	0.03	210	335
	B	0.26	1.2	-	0.03	0.03	245	415
	X42	0.26	1.3	-	0.03	0.03	290	415
	X46	0.26	1.4	-	0.03	0.03	320	435
	X52	0.26	1.4	-	0.03	0.03	360	460
	X56	0.26	1.1	-	0.03	0.03	390	490
	X60	0.26	1.4	-	0.03	0.03	415	520
	X65	0.26	1.45	-	0.03	0.03	450	535
	X70	0.26	1.65	-	0.03	0.03	585	570