API X70 PSL2 line conduit is made of API 5L grade material, with a minimum yield strength of 485 MPa and tensile strength ranging from 570 MPa to 760 MPa. This high strength characteristic enables it to withstand high-pressure transportation environments, while also possessing good weldability and low-temperature toughness, making it suitable for use in harsh climatic conditions.
The chemical composition of the x70 PSL2 line conduit is optimized, containing appropriate amounts of elements such as carbon and manganese, and may include microalloying elements such as niobium and vanadium to further enhance its mechanical properties.
50-Year Service Life Commitment: 3PE coating compliant with DIN 30670 protects your X70 PSL2 pipelines from South America's corrosive soils and salt-spray.
Product Dimensions of API 5L X70 PSL2 High Yield Line Pipes
| Outside Diameter (OD) | Wall Thickness (WT) | Standard Length | Production Method |
| 8" – 100" (219mm – 2540mm) | 6.4mm – 30.0mm | 12m, 18m, or DRL | SSAW (Double-sided Welding) |
| Common S.A. Specs | SCH 40, STD, SCH 80 | Up to 18 meters | Fully Automated Submerged Arc |
Technical Parameters: X70 (L485) PSL2 Oil and gas pipe lines
| Mechanical Property | X70 PSL2 Requirement | Benefit for High-Pressure Lines |
| Yield Strength (min) | 485 MPa (70,300 psi) | Supports maximum throughput pressure |
| Tensile Strength (min) | 570 MPa (82,700 psi) | Resists mechanical stress and fatigue |
| Impact Testing (CVN) | Mandatory (Typical 27J at 0°C) | Prevents brittle fracture in rugged terrain |
| Carbon Equivalent (CEq) | ≤ 0.43 | Ensures excellent field weldability |
| Yield-to-Tensile Ratio | ≤ 0.93 | Predictable material behavior under stress |
Production Process: SSAW Precision
Uncoiling & Leveling: Ensures the base material is perfectly flat.
Milling & Forming: Continuous spiral forming allows for large diameters from relatively narrow coils.
Inside & Outside Welding: Double-sided submerged arc welding ensures the weld seam is as strong as the pipe body.
Sizing & Cutting: Precise cutting to your required project lengths (up to 18m).
3PE & FBE Coating
3PE (Three-Layer Polyethylene): The gold standard for buried lines. Combines FBE's adhesion with PE's mechanical toughness. Compliant with DIN 30670 and ISO 21809-1.
FBE (Fusion Bonded Epoxy): Superior resistance to cathodic disbondment.
Internal Lining (Liquid Epoxy): Reduces internal friction, increasing gas flow and lowering pumping costs over thousands of kilometers.
Inspection and test
100% Hydrostatic Testing: Verified for pressure containment.
100% X-Ray/Radiographic Inspection: Full testing of the spiral weld seam for porosity or slag.
Ultrasonic Testing (UT): Continuous monitoring of the weld seam and pipe body.
Charpy V-notch Impact Test: Mandatory for PSL2 to guarantee toughness in seismic or cold regions.
Third-Party Inspection (TPI): We support and facilitate inspections by SGS, Bureau Veritas (BV), or Intertek.
50-Year Pipeline Integrity Guaranteed! Our X70 PSL2 SSAW pipes are 100% NDT tested and provided with full EN 10204 3.1 MTCs. [Download our QC Protocol and Sample Certificates]
Packaging & Global Logistics to South America
Bevel Protection: Heavy-duty plastic or metallic protectors to prevent damage during crane operations.
Internal Bracing: For diameters over 40", we use wooden or steel "X-bracing" to maintain perfect roundness during transit.
Shipping Modes:
Breakbulk: The most efficient method for large-diameter project orders.
Containerized: Specialized loading for standard diameters to save on freight.
Secure Loading: We use wide nylon slings and rubber padding to ensure 3PE coatings remain scratch-free.
Project Deadline Approaching? We offer competitive CFR pricing and prioritized shipping slots to major South American energy hubs. Don't let logistics delay your infrastructure. [Check Our Current Production Schedule]
FAQ
What is the tensile strength of X70 pipe?
API 5L X70 grade pipe exhibits exceptional tensile strength properties that make it ideal for demanding pipeline applications. The X70 designation indicates a specified minimum yield strength (SMYS) of 70,000 psi (483 MPa) and an ultimate tensile strength range of 620-690 MPa.
What is the difference between API 5L X65 and X70?
Below is a comparison of the weldability of API 5L X65 and X70 steels. API 5L X65: Minimum yield strength of 65,000 psi (448 MPa). API 5L X70: Minimum yield strength of 70,000 psi (483 MPa).
API 5L X70 is a high carbon version pipe grade that has good corrosive properties in several atmospheres. API 5L x70, which has solid chemical properties, contains carbon up to 0.22-0.28 per cent, manganese up to 1-1.2 per cent, phosphorus up to 0.03 per cent, sulphur, nickel, chromium, and copper in precise amounts.
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