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ERW Steel Pipe

Pipe Standard: API 5L PSL1/PSL2,ASTM A53,ASTM A252 ASTM A178,AN/NZS 1163,EN10219-1
Size: OD: 21.3-660mm
WT: 1.0-20mm
LENGTH: 3-12m, or according to customer’s requirement

Classification :

Welded Steel Pipe

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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

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

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.