Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api spec 5l 168.3×5.08 x56m psl2 in China. Welcome to buy discount api spec 5l 168.3×5.08 x56m psl2 made in China here from our factory. Quality products and low price are available.
Product introduction
API Spec 5L 168.3×5.08 X56 PSL1 Line Pipe Product Detail Page
Product Description
This product is high-performance line pipe, manufactured in strict compliance with API Spec 5L 45th Edition (International Standard for Line Pipe for Oil and Gas Transportation). With specifications of Outer Diameter 168.3mm × Wall Thickness 5.08mm, steel grade X56, and product specification level PSL1, it is designed for onshore oil, natural gas, and multiphase fluid transmission. Adopting ERW welded or seamless manufacturing processes, it features higher yield strength, excellent pressure-bearing capacity, stable mechanical properties, and reliable service performance for long-distance pipeline projects, fully meeting the technical requirements of global conventional energy transmission projects.
Basic Product Specifications
Product Name: API 5L Line Pipe
Executive Standard: API Spec 5L 45th Edition (Latest Version)
Steel Grade: X56
Product Specification Level (PSL): PSL1
Outer Diameter (OD): 168.3 mm
Wall Thickness (WT): 5.08 mm
Inner Diameter (ID): 158.14 mm (Calculated: OD - 2×WT)
Manufacturing Process: ERW (Electric Resistance Welded) / Seamless (Optional)
Standard Length: 12m / 6m (Single Random Length, Custom Length Available)
Surface Finish: Black Bare Steel, Coated with Temporary Anti-Rust Oil (Internal & External)
Pipe Ends: Plain Ends (PE) / Beveled Ends (BE) on Request (30°/45° Bevel)
Grade & PSL Explanation (API 5L X56 PSL1)
X: Standard symbol for API line pipe grades, indicating its application in oil and gas transmission pipelines.
56: Minimum specified yield strength of56 ksi (386.13 MPa), higher than X52 grade, suitable for medium-pressure transmission scenarios.
PSL1: Product Specification Level 1, designed for general onshore pipeline projects with conventional inspection requirements, cost-effective and widely used in standard oil & gas transmission systems.
Dimensional Tolerance (API Spec 5L Standard)
|
Item |
Nominal Value |
Standard Tolerance |
|---|---|---|
|
Outer Diameter (OD) |
168.3 mm |
±0.75% of nominal OD |
|
Wall Thickness (WT) |
5.08 mm |
-12.5% of nominal thickness, no positive upper limit |
|
Length |
12000 mm (12m) |
+500 mm, -0 mm (Single Random Length) |
|
Straightness |
- |
≤ 3.2 mm per meter length |
|
Out-of-Roundness |
- |
≤ 1.5% of nominal outer diameter |
Mechanical Properties (API Spec 5L X56 PSL1)
|
Mechanical Property |
Standard Requirement |
|---|---|
|
Minimum Yield Strength ($$R_{eH}$$) |
386 MPa (56 ksi) |
|
Tensile Strength ($$R_m$$) |
485 – 690 MPa (70 – 100 ksi) |
|
Elongation at Break (A) |
≥ 21.5 % |
|
Hardness Control |
Compliant with API 5L PSL1 Technical Requirements |
|
Flattening Test |
Qualified, no cracks or defects after testing |
|
Hydrostatic Test |
Fully passed (Pressure & Holding Time as per API 5L Standard), no leakage or deformation |
Chemical Composition (Heat Analysis, Max. %)
|
Element |
C (Carbon) |
Mn (Manganese) |
P (Phosphorus) |
S (Sulfur) |
Si (Silicon) |
|---|---|---|---|---|---|
|
Limit |
≤0.28 |
≤1.40 |
≤0.035 |
≤0.040 |
≤0.45 |
Manufacturing Process
Raw Material: High-quality carbon steel coils (for ERW) or solid billets (for seamless), strictly inspected to meet API 5L X56 chemical composition and mechanical property requirements.
Production Flow: - ERW Process: Cold Roll Forming → High-Frequency Electric Resistance Welding → Sizing & Straightening → Non-Destructive Testing (UT) → Hydrostatic Test → Anti-Rust Treatment → End Finishing. - Seamless Process: Billet Heating → Rotary Piercing → Elongation → Sizing → Hot Finishing → Straightening → NDT → Hydrostatic Test → Anti-Rust Treatment.
Weld Quality (ERW): Full-penetration longitudinal weld, 100% Ultrasonic Testing (UT) to ensure no internal cracks, inclusions, or defects, fully compliant with API 5L weld standards.
Optional Anti-Corrosion Treatment: 3PE/3LPE External Coating, Fusion-Bonded Epoxy (FBE) Coating, Internal Lining (Epoxy/Polyurethane) on request, to enhance corrosion resistance for harsh environments.
Product Advantages
API Standard Certified: Fully compliant with API Spec 5L 45th Edition, recognized by global oil and gas engineering projects, with complete certification documents.
Higher Strength: X56 grade (386 MPa minimum yield strength) offers superior pressure-bearing capacity compared to X52, suitable for medium-pressure transmission.
Precise Dimensions: Strict dimensional tolerance control, ensuring seamless connection and installation efficiency in pipeline projects.
Cost-Effective PSL1 Level: Meets conventional onshore pipeline requirements, balancing performance and cost for general energy transmission projects.
Excellent Weldability & Workability: Easy for on-site welding and fabrication, adapting to various construction scenarios.
Full Traceability: Complete heat number and batch records, with Mill Test Report (MTR) provided for each order.
Main Applications
Widely used in global onshore oil, gas, and fluid transmission projects, including:
Onshore natural gas transmission pipelines and distribution networks.
Crude oil, refined oil, and petrochemical product transportation pipelines.
Industrial fluid delivery pipelines (water, chemical media, etc.).
Oil and gas gathering and transportation stations, pipeline auxiliary structures.
Municipal energy transmission projects and general industrial pipeline systems.
Quality Inspection & Certification
Dimensional Inspection: Full inspection of outer diameter, wall thickness, length, straightness, and out-of-roundness to meet API 5L tolerance standards.
Mechanical Property Testing: Tensile test, flattening test, and hardness test to verify yield strength, tensile strength, and ductility.
Hydrostatic Test: Conducted at specified pressure and holding time, ensuring no leakage or permanent deformation.
Non-Destructive Testing (NDT): 100% Ultrasonic Testing (UT) for ERW welds; additional PT/MT testing available on request.
Chemical Analysis: Heat analysis to confirm chemical composition meets X56 grade requirements.
Certification: API Monogram (if required) and Mill Test Report (MTR) provided, with full heat number traceability.
Packaging & Delivery
Packaging: Bundled with heavy-duty steel strips, wrapped with waterproof woven cloth to prevent rust and damage during transportation; custom packaging available for bulk orders.
Marking: Each pipe is clearly marked with API Spec 5L, grade (X56), size (168.3×5.08), PSL level (PSL1), heat number, batch number, length, and manufacturing date.
Trade Terms: FOB, CIF, CFR, DAP, DDU all available, supporting various international trade cooperation methods.
Shipping Ports: Major Chinese coastal ports (Qingdao, Tianjin, Shanghai, Ningbo), ensuring efficient and convenient global transportation.
Customization: Accept customized length, beveled ends, anti-corrosion coating, and bulk order production to meet specific project requirements.
Contact Us
For quotation, stock availability, delivery lead time, and customized anti-corrosion coating services of API Spec 5L 168.3×5.08 X56 PSL1 line pipe, please contact our sales team. We provide professional pipeline solutions with API-qualified quality, supporting your global energy engineering projects.
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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