ERW steel pipe is a straight seam electric resistance welded pipe,
abbreviated as ERW pipe, which is a round pipe welded by steel plates.
End: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

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Product introduction

ERW Steel Pipe

Pipe Type: ERW Pipe, ERW Steel Pipe, Electric Resistance Welded Pipe
Application: For Low Pressure Fluid Transmission, Machinery Manufacturing

Specification: OD: 21.3mm ~ 660mm

WT: 1mm ~ 17.5mm

LENGTH: 0.5mtr ~ 22mtr (5.8/6/11.8/12 meters, SRL, DRL)

Standard & Grade: API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
ASTM A53, ASTM A500, JIS G3466, ASTM A252, ASTM A178, AN/NZS 1163, AN/NZS 1074, EN10219-1, EN10217-1

End: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating

Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

Production Process for ERW steel pipe:

1.Uncoiling --- 2. Leveling --- 3. End cutting --- 4. End shearing welding --- 5. Supercoil accumulator --- 6. Edge cutting --- 7. Ultrasonic detection --- 8. Forming --- 9. Electric induction welding --- 10. Ultrasonic detection for weld seam --- 11. Medium frequency heat treatment --- 12. Air cooling --- 13. Water cooling --- 14. Sizing --- 15. Flying cutting --- 16. Flush-out --- 17. Cropping --- 18. Flattening testing --- 19. Straightening --- 20. End facing and bevelling --- 21. Hydrodynamic testing --- 22. Ultrasonic detection for weld seam --- 23. Ultrasonic detection for pipe end --- 24. Visual and dimensions inspection --- 25.Weighting and measuring --- 26. Marking --- 27. Coating --- 28. Pipe-end protection --- 29. Bending --- 30. Shipping

Specification of ERW steel pipe:

API 5L/ASTM A53 GR.B (Small Diameter ERW Steel Pipe)
Outside Diameter	Wall Thickness	Outside Diameter	Wall Thickness
外径 (mm)	壁厚 (mm)	外径 (mm)	壁厚 (mm)
33.4 (1")	2.1-2.4	Φ133	3.0-5.75
	2.5-3.25		6.0-7.75
	3.5-4.0		8.0-10
42.3 (1.2")	2.1-2.4	Φ139.7 (5″)	3.0-4.5
	2.5-3.5		4.75-5.75
	3.75		6.0-7.75
	4.0-5.0		8.0-10
48.3 (1.5")	2.1-2.4	Φ152	3.0-4.5
	2.5-3.25		4.75-5.75
	3.5-3.75		6.0-7.75
	4.0-4.25		8.0-10.0
	4.5-6.0	Φ159	3.25-6.75
Φ60.3 (2″)	3.0-4.0		6.8-7.75
	4.25-4.75		8.0-10.0
	5.0-5.75		10.0-11.75
Ф73	3.0-4.75	Φ165	3.0-6.0
	4.8-5.25		6.25-7.0
	5.5-7.0		/
Φ76.1 (2.5″)	3.0-4.0		/
	4.25-4.75	Φ168.3	3.5-5.75
	5.0-5.25		6.0-8
	5.5-7.0		8.25-8.75
Φ88.9 (3″)	3.0-4.0		9.0-9.75
	4.25-4.75		10.0-11.75
	5.0-5.25		/
	5.5-6.0	Φ177.8 (Φ180)	3.75-5.75
	8		6.0-7.75
Φ108	3.0-4.5		8.0-8.75
	4.75-5.75		9.0-9.75
	6.0-6.25		10.0-11.75
	6.5-9.0		/
Φ114.3 (4'')	3.0-4.0	Φ193.7	4.0-6.75
	4.25-4.75		6.8-7.75
	5.0-6.0		8.0-9.75
	6.25-7.75		10.0-11.75
	8.0-10		/
Φ127	3.0-4.75	Φ203	3.0-6.75
	5.0-5.75		6.8-8.0
	/		8.25-11.75
	/		/

API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe)
Outside Diameter	Wall Thickness	Outside Diameter	Wall Thickness
外径 (mm)	壁厚 (mm)	外径 (mm)	壁厚 (mm)
219、245	5.0-11.75	462	5.75-11.75
273	5.0-11.75	462	12.5-13.75
273	12.5-13.75	457、478	5.75-11.75
299	5.5-11.75		12.5-13.75
299	12.5-13.75		14.5-17.75
325	5.5-11.75	508	5.75-11.75
325	12.5-13.75		12.5-13.75
355	5.5-11.75		14.5-17.75
355	12.5-13.75	529/559/610/630	5.75-11.75
377	5.75-11.75		12.5-13.75
377	12.5-13.75		14.5-17.75
406	5.75-11.75	660	7.5-11.75
	12.5-13.75		12.5-13.75
	/		14.5-17.75

API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe)
Outside Diameter	Wall Thickness	Outside Diameter	Wall Thickness
外径 (mm)	壁厚 (mm)	外径 (mm)	壁厚 (mm)
219、245	5.0-11.75	462	5.75-11.75
273	5.0-11.75	462	12.5-13.75
273	12.5-13.75	457、478	5.75-11.75
299	5.5-11.75		12.5-13.75
299	12.5-13.75		14.5-17.75
325	5.5-11.75	508	5.75-11.75
325	12.5-13.75		12.5-13.75
355	5.5-11.75		14.5-17.75
355	12.5-13.75	529/559/610/630	5.75-11.75
377	5.75-11.75		12.5-13.75
377	12.5-13.75		14.5-17.75
406	5.75-11.75	660	7.5-11.75
	12.5-13.75		12.5-13.75
	/		14.5-17.75

Technical data

Tolerances of ERW steel pipe

Standard	Grade	Out Diameter Tolerance	Wall Thickness Tolerance
ASTM A53	A	+/-1.0%	+/- 12.5%
ASTM A53	B	+/- 1.0%	+/- 12.5%

Chemical Analysis & Mechanical Properties of ERW steel pipe

Standard	Grade	Chemical Analysis(%)				Mechanical Properties(min)(Mpa)
Standard	Grade	C	Mn	P	S	Tensile Strength	Yield Strength
ASTM A53	A	0.25	0.95	0.05	0.045	330	205
ASTM A53	B	0.30	1.20	0.05	0.045	415	240

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Shandong Chengshun Metal Materials Co., Ltd. is located in Jinan City, Shandong Province. It is a comprehensive company dealing in high-quality steel products, with a superior geographical location and very convenient transportation. The company has a complete and scientific quality system, and has been recognized by the industry for its integrity, strength and product quality.

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Welded Steel Pipe