China Customized Helical Welded pipe Manufacturers Suppliers Factory - Discount Price

Introduction of Helical Welded Pipe:

Product Name	Helical Welded Pipe
Standard	ASTM A53 Gr.B; API 5L: Gr.B,X42,X46, X52,X56,X60,X65,X70,X80 PSL1 and PSL2; ASTM A252, ASTM A500, AS/NZS 1163, AS/NZS1074, EN10219, EN10217 and etc
Welding Type	SSAW(Spirally Submerged Arc Welding)
Outer Diameter	8"-120" (219.1mm--3048mm)
Thickness	SCH10-SCH160 (6.35mm-59.54mm)
Length	6m-18m
End	BE(Beveled Ends), PE(Plain Ends)
Test	Chemical Component Analysis, Mechanical Properties (Tensile strength, Yield strength, Elongation), Ultrasonic Testing, NDT(nondestructive testing), Hydrostatic Test, X-ray Test
Fastest Delivery Time	7 Days for normal specification

SSAW Steel Pipe

Helical Welded Pipe Specification:

Outer Diameter		Norminal Wall Thickness(mm)
INCH	MM
8-120	219.1-3048	6.35-59.54

Chemical Composition and Mechanical Properties of Helical Welded Pipe:

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
Standard	Grade	C	Si	Mn	P	S	Tensile Strength(Mpa)	Yield Strength(Mpa)
API 5L PSL1	B	0.26	-	1.20	0.030	0.030	415	415
	X42	0.26	-	1.30	0.030	0.030	415	415
	X46	0.26	-	1.40	0.030	0.030	435	435
	X52	0.26	-	1.40	0.030	0.030	460	460
	X56	0.26	-	1.40	0.030	0.030	490	490
	X60	0.26	-	1.40	0.030	0.030	520	520
	X65	0.26	-	1.45	0.030	0.030	535	535
	X70	0.26	-	1.65	0.030	0.030	570	570
API 5L PSL2	B	0.22	0.45	1.2	0.025	0.015	415	415
	X42	0.22	0.45	1.3	0.025	0.015	415	415
	X46	0.22	0.45	1.4	0.025	0.015	435	435
	X52	0.22	0.45	1.4	0.025	0.015	460	460
	X56	0.22	0.45	1.4	0.025	0.015	490	490
	X60	0.12	0.45	1.6	0.025	0.015	520	520
	X65	0.12	0.45	1.6	0.025	0.015	535	535
	X70	0.12	0.45	1.7	0.025	0.015	570	570
	X80	0.12	0.45	1.85	0.025	0.015	625	625
ASTM A53	B	0.3	0.1	1.2	0.05	0.045	415	415
ASTM A252	1	-	-	-	0.05	-	345	345
	2	-	-	-	0.05	-	414	414
	3	-	-	-	0.05	-	455	455
EN10219-1	S235JRH	0.17	-	1.4	0.04	0.04	360	360
	S275JOH	0.2	-	1.5	0.035	0.035	410	410
	S275J2H	0.2	-	1.5	0.03	0.03	410	410
	S355JOH	0.22	0.55	1.6	0.035	0.035	470	470
	S355J2H	0.22	0.55	1.6	0.03	0.03	470	470
	S355K2H	0.22	0.55	1.6	0.03	0.03	470	470

Our Advantages for Helical Welded Pipe:

· Competitive Price: We have long-term stable cooperation with raw material factories, mature and complete production supporting facilities, a rigorous quality control system, and an integrated model that keeps our production costs at a relatively low level.

· Fast Delivery Time: The production of steel pipes with standard specification can be completed in as fast as 7 days.

· Complete Certification: All types of certificates are available, including API 5L certificate, ISO 9001 certificate, ISO 14001 certificate, FPC certificate, Environmental Quality System certificate, and more.

· Advanced Production Equipment: We imported the equipment from Germany and developed independently four production equipments.

· Professional Team: We have over 300 employees, including more than 60 technical personnel, and possesses an independent equipment research team.

· Comprehensive Testing Facilities: We are equipped with various testing facilities, including but not limited to online ultrasonic automatic flaw detectors, industrial X-ray television and other essential testing equipment.

Application:

Longma Group's Helical Welded Pipe find wide-ranging applications in following areas:


Oil and gas pipelines	Structural support for bridge, building construction

Water and liquid transportation	Piling and foundation work in construction project

Offshore/Onshore construction	Electricity and Heating power

FAQ:

Q: What is the difference between helical welded pipes and straight-seam welded pipes?

A: Helical welded pipes are formed using a continuous helical welding process, resulting in a spiral seam along the length of the pipe, whereas straight-seam welded pipes have a longitudinal seam. Helical welded pipes offer superior strength and resistance to corrosion due to their seamless spiral seam design.

Q: Are helical welded pipes suitable for high-pressure applications?

A: Yes, helical welded pipes are engineered to withstand high pressure and stress conditions, making them suitable for use in various high-pressure applications such as oil and gas transmission pipelines.

Q: Can Longma customize helical welded pipes according to specific project requirements?

A: Yes, Longma specializes in providing customized helical welded pipes tailored to meet the unique needs of our customers. We offer a wide range of options in terms of diameter, thickness, material, and coating to ensure compatibility with diverse applications.

Longma Group:

Hebei Longma Group Limited(LONGMA GROUP) is one of China leading ERW/LSAW steel pipe manufacturers since 2003, with a registered capital of 441.8 billion, covering an area of 230000 square meters. The company specializes in the production: large-diameter, thick-walled, double-sided, sub-arc-seam, welding steel pipe, LSAW-Longitudinal Submerged Arc Welded, ERW steel pipes. By the end of 2023, the company's annual output exceeded 1000000 tons.

Longma is a leading manufacturer and supplier of helical welded pipes, committed to delivering high-quality products and services to our customers worldwide. With our state-of-the-art manufacturing facilities, advanced technology, and experienced team, we ensure fast delivery of products in various sizes while maintaining the highest standards of quality and performance. Our dedication to customer satisfaction and continuous improvement makes us the preferred choice for helical welded pipes. For inquiries or assistance, please contact us at info@longma-group.com.

Longma Group

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Helical Welded pipe