Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api spec 5l 406.4×9.53 x65m psl2 in China. Welcome to buy discount api spec 5l 406.4×9.53 x65m psl2 made in China here from our factory. Quality products and low price are available.
Product introduction
API Spec 5L 406.4×9.53 X65M PSL2 Line Pipe
Product Name: API Spec 5L X65M PSL2 Welded Line Pipe
Standard: API Spec 5L (45th Edition), ISO 3183
Specification: 406.4 × 9.53 mm (OD × WT)
Steel Grade: X65M (L450M)
Specification Level: PSL2 (Product Specification Level 2)
Delivery Condition: Thermo-Mechanically Controlled Process (TMCP), quenched and tempered (optional)
Application: High-pressure oil/gas transmission, offshore pipelines, sour service (NACE MR0175 optional)
Product Overview
API Spec 5L 406.4×9.53 X65M PSL2 is a high-strength, low-alloy line pipe manufactured to the stringent requirements of API 5L PSL2. The designation X65 indicates a minimum yield strength of 65,000 psi (450 MPa), while "M" signifies production via TMCP for optimized toughness and strength. PSL2 represents the higher quality level with mandatory impact testing, stricter chemical limits, full traceability, and 100% non-destructive examination.
This 406.4mm (16-inch) pipe with 9.53mm wall thickness is engineered for high-pressure, long-distance energy pipelines. It combines exceptional strength, low-temperature toughness, and weldability, making it ideal for critical onshore, offshore, and corrosive environment applications demanding PSL2 assurance.
Dimension Parameters
|
Parameter |
Value |
|
Outside Diameter (OD) |
406.4 mm (16 in) |
|
Wall Thickness (WT) |
9.53 mm (0.375 in) |
|
Length |
6m, 12m (standard); 3–18m customizable |
|
Dimensional Tolerance |
API 5L PSL2: OD ±0.75%, WT +15%/-10% |
|
End Treatment |
Beveled (standard), plain cut, threaded |
Chemical Composition (Max %, PSL2)
|
Element |
Max Content (%) |
|
Carbon (C) |
≤0.12 |
|
Manganese (Mn) |
≤1.60 |
|
Silicon (Si) |
≤0.45 |
|
Phosphorus (P) |
≤0.025 |
|
Sulfur (S) |
≤0.015 |
|
Niobium (Nb) |
≤0.06 |
|
Vanadium (V) |
≤0.08 |
|
Titanium (Ti) |
≤0.04 |
|
Carbon Equivalent (CEV) |
≤0.43 |
Mechanical Properties (X65M PSL2)
|
Property |
Requirement |
|
Yield Strength (Re) |
≥450 MPa (65,300 psi) |
|
Tensile Strength (Rm) |
535–760 MPa (77,600–110,200 psi) |
|
Elongation (A) |
≥22% |
|
Charpy Impact (KV) |
≥41 J at 0°C (longitudinal); ≥27 J transverse |
|
Hardness |
≤250 HV; ≤22 HRC |
|
DWTT |
≥85% shear area at -20°C |
Manufacturing Process
Production: SAWL (LSAW) / HFW welded; TMCP or Q&T
Steps: Plate cutting → Edge milling → JCO/UOE forming → Submerged arc welding → Expanding → Heat treatment → Straightening → Sizing
Surface Treatment: Anti-rust oil (standard); 3LPE/FBE coating (optional)
Processing: Custom cutting, beveling, threading, bending
Quality & Inspection (PSL2 Mandatory)
Full compliance with API 5L 45th Ed. PSL2
100% dimensional inspection (OD, WT, length, ovality)
Tensile, flattening, bending, hardness, impact tests
100% UT (AUT) + RT weld inspection
Hydrostatic test (1.25×design pressure, no leakage)
DWTT, NACE MR0175 (sour service optional)
Certificates: EN 10204 3.1/B, API 5L monogram, full traceability
Typical Applications
High-pressure long-distance oil/gas pipelines
Offshore and subsea gathering lines
Sour gas service (H₂S/CO₂, NACE compliant)
Arctic/cold-region pipelines (-40°C toughness)
Gas storage and compressor station piping
Cross-country transmission and energy infrastructure
Product Advantages
PSL2 Quality Assurance: Strictest API 5L quality level
High Strength: X65 grade for high-pressure design
Superior Toughness: Excellent low-temperature impact resistance
Enhanced Weldability: Low CEV minimizes cracking risk
Corrosion Resistance: Low P/S, HIC/SSC resistant
Full Traceability: Complete mill test and heat number trace
Engineering Reliability: Ideal for critical energy projects
Packaging & Delivery
Packaging: Steel bundles, waterproof wrapping, export standard
Marking: Grade, size, standard, PSL2, heat No., length
MOQ: Negotiable; samples available
Lead Time: 30–45 days
Payment: T/T, L/C at sight
Transport: Sea (FCL/LCL), rail, road
About us
Hebei Huayang Steel Pipe Co., Ltd. was founded in 2005, with a registered capital of 500 million yuan. The company covers an area of more than 1,000 mu, with annual sales of 10 billion yuan, more than 600 employees and an annual productivity of 2.75 million tons. The company has 17 new automatic steel pipe production lines and 14 high-frequency production lines, with a diameter of 73-660 mm; Three double-sided submerged arc welded steel pipe production lines with diameters of 406.4-1422.4mm;; 24 hot tube expanding production lines, with a diameter of 230-820mm; Two anticorrosion steel pipe production lines with a diameter of 73-1626 mm; 2 automatic painting production lines. With 3 branches and 5 offices, the products are sold to various cities and exported to more than 80 countries such as Southeast Asia, Middle East, Europe and America.
Packaging, transportation and delivery
Packaging, transportation and delivery
At Hebei Huayang Steel Pipe Co., Ltd., we apply standardized and reliable packaging solutions for all our steel pipe products. Our pipes can be securely packed by hexagonal bundling or circular bundling according to product diameter, wall thickness and customer requirements. Each pipe end is protected with high‑strength plastic pipe caps to avoid collision damage, dust and moisture during transportation and storage. The whole bundle is firmly wrapped with durable woven bags to enhance stability and prevent scratches or deformation.
We support a complete range of transportation methods to satisfy global customers, including road transportation, railway transportation, sea freight and container shipping. Based on our strategic location in Cangzhou, Hebei Province, we enjoy convenient access to major ports such as Tianjin Port, which greatly improves logistics efficiency and reduces transportation costs.
For standard specifications and normal order quantities, the general delivery time is about 30 days after order confirmation and deposit receipt. For large‑scale orders, special sizes or customized processing requirements, our production and sales team will formulate a detailed production plan and provide an accurate delivery schedule accordingly to ensure on‑time supply and stable performance for projects and clients worldwide.
Strict quality control
1. During and after the production, experienced quality inspectors randomly check the products to ensure that each steel pipe is qualified for production and application.
2. A nationally recognized laboratory with CNAS certification and certification by French Classification Society.
3. Have CNOOC access certificate, KOC oil company access network, ADNOC Abu Dhabi oil company access network, Petrobras access network, etc.
4. Accept the inspection by the third party designated/paid by the buyer, such as SGS and BV.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
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