ERW Steel Pipe

Product:	ERW (Electric Resistance Welded ) Steel Pipe, ERW Carbon Steel Pipe
Application:	Used for Oil/Gas/Water transmission,Machinery Manufacturing
Size:	OD: 21.3-660mm
	WT: 1.0-20mm
	LENGTH: 3-12m, or according to customer’s requirement
Pipe Standard:	API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
	ASTM A53: GR.A, GR.B, ASTM A500 JIS G3466
	ASTM A252 ASTM A178
	AN/NZS 1163 AN/NZS 1074
	EN10219-1 EN10217-1,S275, S275JR, S355JRH, S355J2H

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Specification

ERW Steel Pipe Specifications

Product:

ERW (Electric Resistance Welded ) Steel Pipe, ERW Carbon Steel Pipe

Application:

Used for Oil/Gas/Water transmission,Machinery Manufacturing

Size:

OD: 21.3-660mm

WT: 1.0-20mm

LENGTH:  3-12m, or according to customer’s requirement

Pipe Standard:

API 5L  PSL1/PSL2    Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70

ASTM A53: GR.A, GR.B, ASTM A500 JIS G3466

ASTM A252  ASTM A178

AN/NZS 1163   AN/NZS 1074

EN10219-1        EN10217-1,S275, S275JR, S355JRH, S355J2H

ERW Pipe Coating

3PE Coating

3PP Coating

FBE Coating

Epoxy Coating

Special Painting

Process

ERW steel pipe process

Straight seam high frequency welded pipe (ERW steel pipe) is formed by forming a hot-rolled coil through a forming machine.
The skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the pipe blank.

Pressure welding is carried out under the action of a squeeze roller. Realize production. Welded steel pipes have simple production process,

high production efficiency, many varieties and specifications, and less equipment, but their general strength is lower than seamless steel pipes.

Tests

1. Basic requirements for the appearance of ERW straight seam steel pipe welds

2. Surface non-destructive testing

3. Ray detection and ultrasonic detection

Packing & Delivery

Package: In bundles by steel strips or bundles with damp-proof package or as your requirement

ERW steel pipe

Tolerance table

Tolerance Table of Electric Resistance Welded Pipe

Standard	Out Diameter	Tolerance of Pipe End	Tolerance of Pipe Body
APL 5L	219.1～273.1	+1.6mm, -0.4mm	±0.75%
	274.0～320	+2.4mm, -0.8mm	±0.75%
	323.9～457	+2.4mm, -0.8mm	±0.75%
	508	+2.4mm, -0.8mm	±0.75%
	559～610	+2.4mm, -0.8mm	±0.75%

Standard	Grade	Out Diameter	Wall Thickness
API 5L	A	219.1～457	+15%, -12.5%
	B	508～610	+17.5%, -12.5%
	X42-X80	508～610	+19.5%, -8%

ERW Casing

OD		WT		End Type
inch	mm	inch	mm	Grade
				J55	M65	N80/L80-1	P110
				K55	M65	N80/L80-1	P110
8 5/8	219.08	0.304	7.72	-	PS	-	-
		0.352	8.94	PSLB	PSLB	-	-
		0.400	10.16	PSLB	PSLB	PLB	PLB
		0.450	11.43	-	PLB	PLB	PLB
		0.500	12.70	-	-	PLB	PLB
9 5/8	244.48	0.352	8.94	PSLB	PSLB	-	-
		0.395	10.03	PSLB	PSLB	PLB	PLB
		0.435	11.05	-	PLB	PLB	PLB
		0.472	11.99	-	PLB	PLB	PLB
		0.545	13.84	-	-	PLB	PLB
10 3/4	273.05	0.350	8.89	PSB	PSB	-	-
		0.400	10.16	PSB	PSB	-	-
		0.450	11.43	PSB	PSB	PSB	PSB
		0.500	12.57	-	PSB	PSB	PSB
		0.545	13.84	-	-	-	PSB
13 3/8	339.72	0.380	9.65	PSB	PSB	-	-
		0.430	10.92	PSB	PSB	-	-
		0.480	12.19	PSB	PSB	PSB	PSB
		0.514	13.06	-	-	PSB	PSB
16	406.40	0.438	11.13	PSB	-	-	-
		0.495	12.57	PSB	-	-	-
		0.656	16.66	P	-	-	-
18 5/8	473.08	0.435	11.05	PSB	-	-	-
20	508	0.438	11.13	PSLB	-	-	-
		0.500	12.70	PSLB	-	-	-
		0.635	16.13	PSLB	--	-	-

Electric Resistance Welded Tube Dimensional Tolerance

Standard	Tolerance of O.D.	Tolerance of W.T.	Straightness of Pipe Body	Straightness of Pipe End	Tolerance for Weight
API 5CT	+1%, -0.5%	-12.5%	≤0.2%L	≤3.18mm	+6.5%, -3.5%

Chemical composition

ERW Welded Steel Pipe Chemical Composition

standard	Class	Grade	Chemical Analysis(%)				Mechanical Properties(min)(Mpa)
standard	Class	Grade	C	Mn	P	S	Tensile Strength	Yield Strength
API 5L	PSL1	B	0.26	1.20	0.030	0.030	414	241
		X42	0.26	1.30	0.030	0.030	414	290
		X46	0.26	1.40	0.030	0.030	434	317
		X52	0.26	1.40	0.030	0.030	455	359
		X56	0.26	1.40	0.030	0.030	490	386
		X60	0.26	1.40	0.030	0.030	517	414
		X65	0.26	1.45	0.030	0.030	531	448
		X70	0.26	1.65	0.030	0.030	565	483
	PSL2	B	0.22	1.20	0.025	0.015	414	241
		X42	0.22	1.30	0.025	0.015	414	290
		X46	0.22	1.40	0.025	0.015	434	317
		X52	0.22	1.40	0.025	0.015	455	359
		X56	0.22	1.40	0.025	0.015	490	386
		X60	0.22	1.40	0.025	0.015	517	414
		X65	0.22	1.45	0.025	0.015	531	448
		X70	0.22	1.65	0.025	0.015	565	483
		X80	0.22	1.85	0.025	0.015	621	552