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Welded Steel Pipes

Welded Steel Pipes Manufacturer & Supplier for Global Industrial Projects

Looking for a dependable welded steel pipe supplier that can deliver consistent quality, competitive pricing, and on-time shipment?
Youcheng manufactures and exports high-quality welded steel pipes for distributors, EPC contractors, engineering companies, wholesalers, stockists, and project owners worldwide.
Our products are widely used in oil & gas transmission, water supply systems, construction projects, infrastructure development, piling works, power plants, and industrial facilities.
With strict quality control, advanced production equipment, and international standard compliance, Youcheng helps customers reduce procurement risks and improve project efficiency.

High Pressure Welded Steel Pipe

High Pressure Welded Steel Pipe is a cost-efficient engineering pipeline solution designed for medium to high-pressure systems in large-scale industrial projects.

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Thin Wall Welded Steel Pipe

Thin Wall Welded Steel Pipe from Youcheng Steel is a precision-engineered ERW (Electric Resistance Welded) steel pipe designed for lightweight structural, mechanical, and low-pressure applications.

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Thick Wall Welded Steel Pipe

Thick Wall Welded Steel Pipe is a high-strength industrial steel pipe designed for heavy-load, high-pressure, and large-diameter engineering applications.

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Large Diameter Welded Steel Pipe

Large Diameter Welded Steel Pipe is a heavy-duty pipeline solution designed for long-distance fluid transmission, high-pressure oil & gas pipelines, and large-scale infrastructure engineering

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Spiral Welded Steel Pipe

Spiral Welded Steel Pipe, also known as SSAW Pipe (Spiral Submerged Arc Welded Pipe), is manufactured by continuously forming hot rolled steel coils into a spiral shape and welding the seam using

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Longitudinal Welded Steel Pipe

Longitudinal Welded Steel Pipe, also known as Straight Seam Welded Pipe or LSAW Pipe (Longitudinal Submerged Arc Welded Pipe), is produced by forming steel plate into a cylindrical shape and welding

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Why Procurement Managers Choose Youcheng

Purchasing steel pipes is not simply about finding the lowest price. The real challenge is avoiding delays, quality issues, documentation problems, and project risks. Youcheng helps buyers solve these problems through:

Consistent Quality

Every production batch follows strict inspection procedures to ensure reliable performance.

Stable Delivery Schedule

Efficient production planning reduces project delays and supply interruptions

Complete Documentation

All necessary quality certificates and export documents are provided.

Technical Support

Professional engineers assist customers in selecting suitable specifications and standards.

Long-Term Supply Capability

Suitable for distributors, infrastructure projects, and government tenders.

Technical Specifications

Item	Specification
Product Type	ERW, LSAW, SSAW
Diameter Range	10 mm – 3500 mm
Wall Thickness	0.8 mm – 60 mm
Length	3 m – 18 m
Pipe End	Plain, Beveled, Threaded
Surface Finish	Black, Galvanized, FBE, 3LPE, Epoxy
Steel Grades	Q195, Q235, Q345, ASTM, API
Standards	ASTM, API, EN, DIN, BS, JIS
Testing	UT, RT, Hydrostatic
Certification	EN10204 3.1

Standard Pipe Size Reference

NPS	OD (mm)	Common Wall Thickness
1/2"	21.3	SCH 40
3/4"	26.7	SCH 40
1"	33.4	SCH 40
2"	60.3	SCH 40 / 80
4"	114.3	SCH 40 / 80
6"	168.3	SCH 40 / 80
8"	219.1	SCH 40 / 80
12"	323.9	SCH 40 / 80

Welded Steel Pipe vs Seamless Steel Pipe

Item	Welded Pipe	Seamless Pipe
Manufacturing Cost	Lower	Higher
Large Diameter Availability	Excellent	Limited
Production Efficiency	Higher	Lower
Delivery Time	Faster	Slower
Dimensional Consistency	Excellent	Good
Cost Performance	Excellent	Moderate
High Pressure Service	Good	Excellent

Global Project References

UAE Municipal Water Pipeline Project

Product	API 5L X52 SSAW Pipe
Specification	DN1200 × 12.7 mm
Quantity	4,500 Tons
Coating	3LPE
Application	Municipal Water Transmission

Saudi Arabia Infrastructure Development Project

Product	Hot-Dip Galvanized ERW Pipe
Quantity	2,000 Tons
Application	Utility Construction

Southeast Asia Industrial Park Project

Product	ASTM A53 ERW Steel Pipe
Quantity	3,000 Tons
Application	Industrial Pipeline Network

South America Mining Facility Project

Product	Structural Welded Steel Pipe
Quantity	3,500 Tons
Application	Mining Infrastructure

Youcheng Manufacturing Strength

Modern Production Facilities
Our production workshop is equipped with advanced manufacturing and inspection equipment to ensure precision and consistency.

Production Equipment
• ERW Pipe Production Lines
• SSAW Pipe Production Lines
• LSAW Pipe Production Lines
• CNC Pipe End Processing Equipment
• Hydrostatic Testing Machines
• Ultrasonic Testing Systems
• Eddy Current Inspection Equipment
• Coating Production Lines

Production Capacity

Item	Capacity
Annual Capacity	300,000+ Tons
Monthly Production	25,000+ Tons
Maximum Diameter	3500 mm
Export Markets	60+ Countries
Available Standards	ASTM, API, EN, DIN, BS, JIS
Inspection Options	SGS, BV, TUV, Intertek

Welded Steel Pipe Manufacturing Process

Every welded steel pipe is manufactured under strict process control.

01/

Raw Material Inspection
Verification of chemical composition and mechanical properties.

02/

Coil & Plate Preparation
Precision cutting and edge preparation.

03/

Forming Process
Advanced forming equipment ensures dimensional accuracy.

04/

Welding Process
High-frequency welding or submerged arc welding depending on pipe type.

05/

Weld Inspection
UT and RT testing available to verify weld integrity.

06/

Sizing & Straightening
Ensures accurate dimensions and straightness.

07/

Hydrostatic Testing
Pressure testing for leak detection and performance verification.

08/

Surface Treatment
Galvanizing, FBE, 3LPE, epoxy coating, or custom finishes.

09/

Final Inspection
Comprehensive quality inspection before shipment.

10/

Packaging & Delivery
Export-standard packaging for safe transportation worldwide.

Our Certificate

Frequently Asked Questions

Q: Can welded steel pipes be used for high-pressure applications?

A: Yes. LSAW and API-grade welded pipes are widely used in high-pressure oil, gas, and water transmission projects.

Q: What is the difference between ERW and SSAW pipes?

A: ERW pipes are manufactured using resistance welding and are typically used for smaller diameters. SSAW pipes use spiral welding and are ideal for large-diameter applications.

Q: Do you provide API 5L PSL1 and PSL2 pipes?

A: Yes. Both PSL1 and PSL2 grades are available.

Q: Can you provide anti-corrosion coatings?

A: Yes. FBE, 3LPE, epoxy, galvanized, and customized coating systems are available.

Q: Do you support third-party inspection?

A: Yes. SGS, BV, TUV, Intertek, and customer-appointed inspectors are welcome.

Q: What documents can you provide?

A: EN10204 3.1 MTC, inspection reports, test certificates, packing lists, invoices, certificates of origin, and other export documents.

Q: What is your lead time?

A: Typically 15–30 days depending on specifications and order quantity.

Q: Can you manufacture according to project drawings?

A: Yes. Customized production is available according to customer specifications and engineering drawings.

Request Your Free Quotation Today

Contact Youcheng today and receive your quotation within 24 hours.

To Receive An Accurate Quotation, Simply Send

• Product Type
• Diameter & Wall Thickness
• Steel Grade
• Standard Requirement
• Quantity
• Coating Requirement
• Destination Port

Our Team Will Provide

• Technical Recommendations
• Factory Pricing
• Production Schedule
• Shipping Solutions
• Complete Documentation Support

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We're professional welded steel pipes manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to wholesale high-grade welded steel pipes for sale here from our factory.