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LSAW Steel Pipe

Pipe Standard: API 5L PSL1/PSL2,ASTM A53,ASTM A252 ASTM A178,AN/NZS 1163,EN10219-1
Size: OD: 219mm-1625mm
WT: 6.35 mm – 60 mm
LENGTH: 2 m – 18 m

Classification :

Welded Steel Pipe

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Specification

◎LSAW Steel Pipe Specification

Product	LSAW Pipe, Longitudinally Submerged Arc Welding Pipe
Application	Used for Oil / Gas / Water Transmission, Engineering / Offshore Projects
Size	OD: 219mm-1625mm
	WT:6.35 mm – 60 mm
	LENGTH: 5.8/6/11.8/12m
Pipe Standard	API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
	ASTM A53/A252/A500/A672/A691/A139
	EN10210/EN10219/EN10217/EN10208/EN10297
	AN/NZS 1163 AN/NZS 1074

◎Product Display & Application

◎UOE SAWL Pipes

Outside Diameter	Φ219mm- 1118mm (20"- 44")
Wall Thickness	6.0-25.4mm 1/4"-1"
Quality Standards	API、DNV、ISO、DEP、EN、ASTM、DIN、BS、JIS、GB、CSA
Length	9-12.3m (30'- 40')
Grades	API 5L A-X90,GB/T9711 L190-L625

◎JCOE SAWL Pipes

Outside Diameter	Φ406mm- 1626mm (16" - 64" )
Wall Thickness	6.0- 75mm (1/4" - 3" )
Quality Standards	API、DNV、ISO、DEP、EN、ASTM、DIN、BS、JIS、GB、CSA
Length	3-12.5m ( 10'- 41' )
Grades	API 5L A-X100, GB/T9711 L190-L690

◎Features Of Longitudinally Submerged Arc Welding Steel Pipe

- Large diameter
- Thick walls
- High pressure resistance
- Low temperature resistance

Chemical composition

◎Chemical Composition and Mechanical Properties of LSAW Steel Pipe

Sandard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
Sandard	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

Process

UOE LSAW Pipe Forming Process:
The three main forming processes of UOE LSAW steel pipe forming process include: steel plate pre-bending, U forming and O forming. Each process adopts a dedicated forming press to complete the three processes of pre-bending the edge of the steel plate, U forming and O forming in sequence to deform the steel plate into a circular tube.
JCOE LSAW Pipe Forming Process:
Forming: After several steps of stamping on the JCO forming machine, first half of the steel plate is pressed into a "J" shape, then the other half of the steel plate is pressed into a "J" to form a "C" shape, and finally pressurized from the middle to form An open "O"-shaped tube blank is formed.