Carbon Steel ERW Pipe Specifications
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Carbon Steel ERW Pipe Specifications

Specifications Ranges:
OD: 1/2"-48" (21.3mm-1219mm)
WT: SCH10-SCH80 (0.5mm-40mm)
Material Standard:
PSL 1: A25, A, B, X42, X46, X52, X56, X60, X65, X70
PSL 2: B, X42, X46, X52, X56, X60, X65, X70, X80

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Product Introduction

Specifications Ranges:

OD: 1/2"-48" (21.3mm-1219mm)

WT: SCH10-SCH80 (0.5mm-40mm)

Material Standard:

PSL 1: A25, A, B, X42, X46, X52, X56, X60, X65, X70

PSL 2: B, X42, X46, X52, X56, X60, X65, X70, X80

Applications:

For the purpose of transportation of gas,water,oill in oil&gas industry

Standard	Steel Grade	Chemical composition, %					Tensile strength, MPa		Yield strength, MPa		Elongation, %
		C	Mn	P	S
		MAX					MIN
API-5L	B	0.27	1.15	0.03	0.03	413		241		21.5-29.5
	X42	0.29	1.25	0.03	0.03	413		289		21.5-29.5
	X46	0.31	1.35	0.03	0.03	434		317		20.5-28.5
	X52	0.31	1.35	0.03	0.03	455		358		19.5-27
	X56	0.26	1.35	0.03	0.03	489		386		18.5-25.5
	X60	0.26	1.35	0.03	0.03	517		413		17.5-24

Specifications

ERW express resistance welding, resistance welding with high production efficiency, low cost, saving materials, easy automation and so on, so it is widely used in aviation, aerospace, energy, electronics, automobile, light industry and other industrial sectors, is one of the important welding process.

Technical Parameter for ERW Steel Pipe	Tensile Strength	≥410(42)
	Yield Strength 0.2%	≥245(25)
	Elongation %	≥25
	XT	OK
	UT	OK
	Water Pressure	OK
	IMP	OK
	Flat Test	OK
	Surface	Painting Marking
	Ends	Beveled and Caps
Packing	In bundles	With steel strip
Dimension	OD Size	219-820 mm
	Thickness	6-25mm
	Length	6-20m
Certificate	API 5L / ISO

Description

ERW steel pipe is straight weld pipe, electric resistance welding, the abbreviation for ERW for transporting oil and natural gas vapor liquid objects, can meet the requirements of high and low pressure, the transport in the world with pipe sector accounted for a pivotal position.

ERW tube is a "high frequency resistance welded steel pipe", and the common welded pipe welding process is not the same, the welding seam is made from the steel body of the base metal, the mechanical strength is better than the general welded pipe.

standard thickness tolerance
tolerance class		thickness tolerance
		S/D
		0.1< S/D	0.05< S/D≤0.1	0.025< S/D≤0.05	S/D≤0.025
S1		±15%,min±0.6mm
S2	A	±12.5%,min±0.4mm
	B	+ plus tolerance depend on weight request - 12.5%
S3	A	±10%,min±0.2mm
	B	±10%	±12.5%,min±0.4mm		±15%
	C	+plus tolerance depend on weight request - 10%
S4	A	±7.5%,min±0.15mm
	B	±7.5%	±10%	±12.5%	±15%
S5		±5%,min±0.10mm
non-standard thickness tolerance
tolerance class		thickness tolerance,%
NS1		+15 -12.5
NS2		+15 -10
NS3		+12.5 -10
NS4		+12.5 -7.5
remarks:S is pipe nominal dimension,D is pipe nominal OD

ERW pipe is due to the use of hot-rolled coil as raw material, uniform wall thickness can be controlled at about +- 0.2mm, the two ends of the steel pipe according to the APL standard and GB / t9711.1 standard, end trimming hit groove, fixed length delivery and other advantages. In recent years, the natural gas pipeline network engineering and gas companies have been widely used ERW pipe as the main pipe network of the city.

Applications

The pipe is for Fluid transport and Construction mostly used in industries as Coal gas, Steam, Water, Petroleum, Natural gas.

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