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LSAW Steel Pipe-EC1

LSAW Steel Pipe-EC1

The LSAW steel pipe is a longitudinally submerged arc welding steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe, used for oil, gas, water transmission, engineering, offshore projects.

Standard :
ASTM AISI DIN JIS GB EN
Material :
A36、A53、A106、A192、ST52、Q355、A210、T12、T11、P5、P9、P91、T22、A333、4140、5135 etc.
Thickness :
1mm-150mm
Process :
Argon arc welding、Submerged arc welding、High frequency welding

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LSAW Steel Pipe-EC1

Grades of LSAW Steel Pipe:

For pipeline: API 5L GR.B, X42, X45, X50, X60, X60, X65, X70, X80

For piles: ASTM A252

Sizes of LSAW Steel Pipe:

OD: 16"-72"

O.D.		W.T.							Length(m)
Inch	mm	Min.Yield Strength(Mpa)
Inch	mm	245(B)	290(X42)	360(X52)	415(X60)	450(X65)	485(X70)	555(X80)
16	406	6.0-14.0	6.0-13.0	6.0-12.0	6.0-11.0	6.0-10.5	6.0-10.0	6.0-9.0	6.0-12.3
18	457	6.0-15.0	6.0-14.0	6.0-13.0	6.0-12.0	6.0-11.5	6.0-11.0	6.0-10.0	6.0-12.3
20	508	6.0-16.0	6.0-15.0	6.0-14.0	6.0-13.0	6.0-12.5	6.0-12.0	6.0-11.0	6.0-12.3
22	559	6.0-17.0	6.0-16.0	6.0-15.0	6.0-14.0	6.0-13.5	6.0-13.0	6.0-12.0	6.0-12.3
24	610	6.0-18.0	6.0-17.0	6.0-16.0	6.0-15.0	6.0-14.5	6.0-14.0	6.0-13.0	6.0-12.3
26	660	6.0-19.0	6.0-18.0	6.0-17.0	6.0-16.0	6.0-15.0	6.0-15.0	6.0-14.0	6.0-12.3
28	711	6.0-20.0	6.0-19.0	6.0-18.0	6.0-17.0	6.0-16.5	6.0-16.0	6.0-15.0	6.0-12.3
30	762	7.0-21.0	7.0-20.0	7.0-19.0	7.0-18.0	7.0-17.5	7.0-17.0	7.0-16.0	6.0-12.3
32	813	7.0-22.0	7.0-21.0	7.0-20.0	7.0-19.0	7.0-18.5	7.0-18.0	7.0-17.0	6.0-12.3
34	864	7.0-23.0	7.0-22.0	7.0-21.0	7.0-20.0	7.0-19.5	7.0-19.0	7.0-18.0	6.0-12.3
36	914	8.0-24.0	8.0-23.0	8.0-22.0	8.0-21.0	8.0-20.5	8.0-20.0	8.0-19.0	6.0-12.3
38	965	8.0-25.0	8.0-24.0	8.0-23.0	8.0-22.0	8.0-21.5	8.0-21.0	8.0-20.0	6.0-12.3
40	1016	8.0-26.0	8.0-25.0	8.0-24.0	8.0-23.0	8.0-22.5	8.0-22.0	8.0-21.0	6.0-12.3
42	1067	8.0-26.0	8.0-25.0	8.0-24.0	8.0-23.0	8.0-22.5	8.0-22.0	8.0-21.0	6.0-12.3
44	1118	9.0-27.0	9.0-26.0	9.0-24.5	9.0-23.5	9.0-22.8	9.0-22.0	9.0-21.0	6.0-12.3
46	1168	9.0-27.0	9.0-26.0	9.0-24.0	9.0-23.5	9.0-22.8	9.0-22.0	9.0-21.0	6.0-12.3
48	1219	9.0-28.0	9.0-27.0	9.0-25.4	9.0-24.0	9.0-23.5	9.0-23.0	9.0-22.0	6.0-12.3
52	1321	9.0-28.0	9.0-27.0	9.0-25.4	9.0-24.2	9.0-23.5	9.0-23.0	9.0-22.0	6.0-12.3
56	1422	10.0-29.0	10.0-28.0	10.0-26.0	10.0-24.5	10.0-23.8	10.0-23.0	10.0-22.0	6.0-12.3
60	1524	10.0-29.0	10.0-28.0	10.0-26.0	10.0-24.5	10.0-23.8	10.0-23.0	10.0-22.0	6.0-12.3
64	1626	10.0-30.0	10.0-29.0	10.0-27.0	10.0-25.4	10.0-24.8	10.0-24.0	10.0-23.0	6.0-12.3
68	1727	10.0-30.0	10.0-29.0	10.0-27.0	10.0-25.4	10.0-24.8	10.0-24.0	10.0-23.0	6.0-12.3
72	1829	10.0-30.0	10.0-29.0	10.0-27.0	10.0-25.4	10.0-24.8	10.0-24.0	10.0-23.0	6.0-12.3

Tolerance of Outside Diameter and Wall Thickness of LSAW Steel Pipe

Types	Standard
Types	SY/T5040-2000	SY/T5037-2000	SY/T9711.1-1977	ASTM A252	AWWA C200-97	API 5L PSL1
Tube end OD deviation	±0.5%D	±0.5%D	-0.79mm～+2.38mm	<±0.1%T	<±0.1%T	±1.6mm
Wall thickness	±10.0%T	D<508mm, ±12.5%T	-8%T～+19.5%T	<-12.5%T	-8%T～+19.5%T	5.0mm<t<15.0mm, ±0.11<="" p="" style="padding: 0px; margin: 0px;"></t<15.0mm,>
Wall thickness	±10.0%T	D>508mm, ±10.0%T	-8%T～+19.5%T	<-12.5%T	-8%T～+19.5%T	T≥15.0mm, ±1.5mm

Chemical Composition and Mechanical Properties of LSAW Steel Pipe

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

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