HIGH PRESSURE PIPE
HIGH PRESSURE PIPE – INDUSTRIAL & ENERGY SYSTEMS
Outside Diameter：Φ50mm – 1500mm (2″ – 60″ )
Wall Thickness：6.0 – 100mm (0.24″ – 4″)
Pressure Rating：20 – 100 MPa (2900 – 14500 psi)
Quality Standards： API 5L, ASME B31.3, ASTM A106/A53, EN 10208, ISO 3183
Length：6 – 18m (custom up to 24m)
Coating : FBE (Fusion Bonded Epoxy), 3LPE/3LPP, Internal Cladding, or project-specific
description
HIGH PRESSURE STEEL PIPE is engineered for critical fluid transport in energy, petrochemical, and hydraulic systems. Manufactured from high-grade alloy/carbon steel (P91, X70, 316L) via seamless or longitudinal/submerged arc welding processes, it undergoes rigorous heat treatment and NDT to withstand extreme pressure and temperature. Features multi-layer anti-corrosion and thermal insulation coatings, ensuring integrity in corrosive, high-stress environments (e.g., subsea pipelines, steam lines).
Product Name: Seamless High-Pressure Pipe, API Line Pipe, Process Piping
Specifications:
Outer Diameter: 50mm – 1500mm (2″ – 60″ )
Wall Thickness: 6.0 – 100mm
Length: 6m / 12m / 18m (custom up to 24m)
Standard and Steel Grade:
API 5L: X42, X65, X80
ASME B31.3: ASTM A106 Gr.B, A333 Gr.6
EN 10208: L245NB, L450MB
ISO 3183: PSL1/PSL2
Ends: Beveled ends (for welding), Threaded & Coupled (T&C), RTJ Flanges (ASME B16.5)
Surface Treatment
External Coating: FBE (250-500μm), 3LPE (2.5-3.5mm), Abrasion-resistant overlay
Internal Coating: FBE, Glass-reinforced Epoxy, Cr13 Cladding for erosion resistance
Special: Insulated bundles for cryogenic/high-temp service
Specification
HIGH PRESSURE PIPE Specification Range Reference Table
| Parameters | Typical range | Extreme range | Standard basis | Engineering constraints |
| Outside diameter | ⌀200mm~⌀800mm | ⌀50mm~⌀1500mm | API 5L / ASME | >1200mm requires special forging |
| Wall thickness | 10mm~40mm | 6.0mm~100mm | ASTM A106 | .>50mm requires PWHT |
| Pressure rating | 25MPa~60MPa | 20MPa~100MPa | ASME B31.3 | >80MPa needs autofrettage design |
| Length | 12m (standard) | 6m~24m | ISO 3183 | >18m requires transport permits |
HIGH PRESSURE PIPE Standards and Applications Comparison Table
| Classification | Standard | Positioning | Applicability |
| Core Standard | API 5L | Global oil/gas transmission | Onshore/offshore pipelines |
| Process Standard | ASME B31.3 | Industrial process piping systems | Refineries, power plants |
| Material Standard | ASTM A106 | High-temp seamless carbon steel pipe | Steam lines (>425°C) |
| Safety Standard | EN 10208 | European hazardous fluid transport | Chemical processing plants |
| Quality Standard | ISO 3183 | International pipeline delivery quality | Cross-country projects |
application
Extreme Environment Reliability
Energy Infrastructure
Oil & gas transmission: Rated for sour service (H₂S resistance per NACE MR0175)
Hydraulic fracturing: Burst pressure ≥1.5x design pressure
Power Generation
Steam cycles: Sustains 620°C/45MPa in ultra-supercritical plants
CO₂ transport: Compatible with carbon capture systems
Industrial Processes
Hydrogen pipelines: Embrittlement-controlled materials
High-pressure reactors: Fatigue life >100,000 cycles
Safety & Monitoring
Smart pigging compatibility: ILI tools for wall thickness mapping
SCADA integration: Real-time pressure/temperature monitoring
advantages
Structural Integrity
Seamless variant eliminates weld weakness
Charpy V-notch impact ≥50J at -46°C (Arctic grade)
Corrosion & Erosion Resistance
Internal cladding options: Inconel 625, Alloy 28
CRA (Corrosion Resistant Alloy) liners for sour gas
Precision Engineering
Dimensional tolerance: OD ±0.5%, WT +15%/-10%
Bevel angle: 30°±5° with 1.6mm root face (ASME B16.25)
Quality Validation
100% automated UT/RT of welds (detects ≥0.5mm flaws)
Hydrotest: 1.5x design pressure for 24 hours
Operational Economy
30% reduced pressure loss via smooth ID coating
50-year design life with cathodic protection
packing
Protection System
Thread protectors: Steel caps with thermoplastic lining
Flange faces: Laser-cut plywood covers with bolt holes
Coating Preservation
VCI (Vapor Corrosion Inhibitor) paper wrap
Shock-indicating labels for impact monitoring
Transport & Storage
Bundle strapping: Stainless steel bands with edge protectors
Stacking: Max 2 layers with rubber-separated dunnage
Outdoor storage: UV-resistant tarpaulins with airflow gaps
Traceability
Heat number stenciled at 1m intervals
RFID tag embedded in flange for digital log access
HIGH PRESSURE PIPE Specification Range Reference Table
| Parameters | Typical range | Extreme range | Standard basis | Engineering constraints |
| Outside diameter | ⌀200mm~⌀800mm | ⌀50mm~⌀1500mm | API 5L / ASME | >1200mm requires special forging |
| Wall thickness | 10mm~40mm | 6.0mm~100mm | ASTM A106 | .>50mm requires PWHT |
| Pressure rating | 25MPa~60MPa | 20MPa~100MPa | ASME B31.3 | >80MPa needs autofrettage design |
| Length | 12m (standard) | 6m~24m | ISO 3183 | >18m requires transport permits |
HIGH PRESSURE PIPE Standards and Applications Comparison Table
| Classification | Standard | Positioning | Applicability |
| Core Standard | API 5L | Global oil/gas transmission | Onshore/offshore pipelines |
| Process Standard | ASME B31.3 | Industrial process piping systems | Refineries, power plants |
| Material Standard | ASTM A106 | High-temp seamless carbon steel pipe | Steam lines (>425°C) |
| Safety Standard | EN 10208 | European hazardous fluid transport | Chemical processing plants |
| Quality Standard | ISO 3183 | International pipeline delivery quality | Cross-country projects |
Extreme Environment Reliability
Energy Infrastructure
Oil & gas transmission: Rated for sour service (H₂S resistance per NACE MR0175)
Hydraulic fracturing: Burst pressure ≥1.5x design pressure
Power Generation
Steam cycles: Sustains 620°C/45MPa in ultra-supercritical plants
CO₂ transport: Compatible with carbon capture systems
Industrial Processes
Hydrogen pipelines: Embrittlement-controlled materials
High-pressure reactors: Fatigue life >100,000 cycles
Safety & Monitoring
Smart pigging compatibility: ILI tools for wall thickness mapping
SCADA integration: Real-time pressure/temperature monitoring
Structural Integrity
Seamless variant eliminates weld weakness
Charpy V-notch impact ≥50J at -46°C (Arctic grade)
Corrosion & Erosion Resistance
Internal cladding options: Inconel 625, Alloy 28
CRA (Corrosion Resistant Alloy) liners for sour gas
Precision Engineering
Dimensional tolerance: OD ±0.5%, WT +15%/-10%
Bevel angle: 30°±5° with 1.6mm root face (ASME B16.25)
Quality Validation
100% automated UT/RT of welds (detects ≥0.5mm flaws)
Hydrotest: 1.5x design pressure for 24 hours
Operational Economy
30% reduced pressure loss via smooth ID coating
50-year design life with cathodic protection
Protection System
Thread protectors: Steel caps with thermoplastic lining
Flange faces: Laser-cut plywood covers with bolt holes
Coating Preservation
VCI (Vapor Corrosion Inhibitor) paper wrap
Shock-indicating labels for impact monitoring
Transport & Storage
Bundle strapping: Stainless steel bands with edge protectors
Stacking: Max 2 layers with rubber-separated dunnage
Outdoor storage: UV-resistant tarpaulins with airflow gaps
Traceability
Heat number stenciled at 1m intervals
RFID tag embedded in flange for digital log access
