Product Overview
High Pressure Welded Steel Pipe is a cost-efficient engineering pipeline solution designed for medium to high-pressure systems in large-scale industrial projects.
It is widely adopted in global EPC projects including oil & gas transmission, petrochemical plants, power generation systems, and water infrastructure networks.
Compared with seamless steel pipes, welded steel pipes manufactured through advanced HFW / ERW / SAW technologies are widely recognized as a preferred solution for large-diameter pipeline systems where cost efficiency and delivery time are critical engineering factors.
Technical Specifications
|
Parameter |
Specification |
|
Product Type |
High Pressure Welded Steel Pipe |
|
Process |
LSAW / SSAW / ERW |
|
Outer Diameter |
219 mm – 3200 mm |
|
Wall Thickness |
6 mm – 40 mm |
|
Length |
6 m / 12 m / Custom |
|
Steel Grades |
API 5L B / X42 – X80, Q235B, Q345B |
|
Standards |
API 5L, ASTM A672, ASTM A691, EN 10217 |
|
End Type |
Beveled / Plain / Threaded |
|
Surface |
Bare / Painted / 3PE / FBE |
|
Testing |
UT, RT, Hydrostatic, Mechanical Tests |
Engineering Performance Advantages
High Pressure Structural Reliability
Designed for continuous operation under high internal pressure and dynamic load conditions in pipeline systems.
Advanced Welding Integrity System
• Fully automatic submerged arc welding (SAW)
• Deep fusion weld penetration
• Low defect probability
• 100% weld seam inspection capability
Excellent Mechanical Strength
• High tensile strength steel base
• Strong impact resistance
• Stable fatigue performance under cyclic pressure
Dimensional Precision for Engineering Installation
• Strict OD and wall thickness tolerance control
• High roundness accuracy for pipeline welding systems
• Suitable for long-distance pipeline installation
Anti-Corrosion Protection Systems
• 3PE / 3LPE coating (standard for buried pipelines)
• FBE epoxy coating (chemical and marine environments)
• Anti-corrosion painting system
• Galvanized protection (special applications)
Typical Engineering Applications
Oil & Gas Pipeline Systems
• Crude oil transmission pipelines
• Natural gas distribution networks
• Gathering and transportation systems
Petrochemical Industry
• Refinery process pipelines
• Chemical transportation systems
• Industrial fluid networks
Power Generation Systems
• Boiler pipelines
• Steam transmission lines
• Cooling water systems
Water & Infrastructure Projects
• High-pressure water transmission systems
• Municipal pipeline networks
• Desalination and industrial water systems
Structural Engineering Applications
• Steel structures
• Bridge construction
• Foundation piling systems
Mechanical & Performance Properties
• Yield Strength: 245 – 485 MPa
• Tensile Strength: 400 – 690 MPa
• Elongation: ≥ 20%
• Low-temperature impact testing available
• Designed according to project pressure requirements
Surface Protection Systems
To ensure long-term service life in different environments:
• Black painted (temporary protection)
• Hot-dip galvanized (HDG)
• 3PE anti-corrosion coating (buried pipelines)
• FBE epoxy coating (high corrosion resistance)
• Anti-rust oil coating
• Offshore / marine-grade protection systems
Quality Assurance & Risk Control
Full Testing System
• 100% hydrostatic pressure testing
• Ultrasonic weld seam inspection
• Chemical composition analysis
• Mechanical performance testing
Certification System
• API 5L compliance
• ISO 9001 quality management system
• EN10204 3.1 / 3.2 Mill Test Certificates
• Full traceability via heat number system
Third-Party Inspection Support
• SGS / BV / TUV accepted
• Customer-appointed inspection supported
Engineering Customization Capability
We provide full OEM & EPC project customization:
Dimensional Customization
• Non-standard diameter and wall thickness
• Project-specific lengths
Material Customization
• API / ASTM / EN grades
• High-strength steel options
Coating Systems
• Offshore corrosion protection
• Underground pipeline systems
• High-temperature resistant coatings
Identification System
• Heat number marking
• Logo stamping
• Color coding for project tracking
Packaging & Global Logistics
• Steel strip bundling
• Plastic end caps protection
• Waterproof wrapping
• Wooden crate (optional)
• Steel frame reinforcement for heavy pipes
Shipping Terms
FOB / CIF / CFR / EXW
Transport Modes
• Bulk vessel
• Container shipment
• Break bulk cargo
Why Youcheng Steel Pipes
Stable large-scale production capacity for EPC projects
Strict API / ASTM / EN quality compliance system
Strong welding inspection & quality assurance system
Full customization based on engineering requirements
Proven export experience across global infrastructure markets
Fast technical response for engineering quotation support
Our Certificate
Frequently Asked Questions
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