Description: BBN steel is a well-known steel manufacturer and service provider in China, API 5L PSL2 X52 line pipe is our superior product, we are favored by customers with high quality, competitive price and excellent service
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API 5L PSL2 X52 Line Pipe (L360) | Seamless & Welded Carbon Steel Pipe | 1/2" – 48" OD
Premium Carbon Steel Line Pipe for Oil, Gas & Water Transmission | 52 Ksi (360 MPa) Min. Yield Strength | Stricter PSL2 Chemistry, Impact & NDT Requirements | MTC, EN 10204 3.1 / 3.2, Full API Inspection Reports
Stricter Than PSL1PSL2 enforces tighter chemical composition control, mandatory impact testing and non-destructive testing standards for high-safety pipeline service.
52 Ksi / 360 MPa YieldMinimum yield strength of 52 Ksi (360 MPa) delivers stable pressure resistance and structural durability for long-distance pipelines.
Seamless & Welded Full RangeSeamless (SMLS), ERW, HFW, LFW and SAW welded pipes, all supplied with complete certifications.
01Product Overview & Specifications
API 5L PSL2 X52 (also named L360) is a premium-grade carbon steel line pipe specially engineered for oil, gas and water transmission pipeline systems. As a core grade in the API 5L specification series (including A25, A, B, X42, X46, X52, X60, X65, X70 and X80), X52 features a minimum yield strength of 52 Ksi (360 MPa), delivering stable pressure resistance and structural durability for long-distance pipeline projects.
Compared with PSL1 grade, API 5L PSL2 X52 implements stricter chemical composition control, impact test requirements and non-destructive testing standards, making it suitable for high-standard, high-safety petroleum and natural gas transmission scenarios. We supply full-series seamless and welded X52 PSL2 pipes with complete certifications and customizable processing services for global pipeline engineering projects.
As-Rolled, Normalized, Q&T, Thermomechanical Rolled / Formed
Core Advantage
Strict PSL2 standard, high pressure resistance, excellent toughness, stable welding performance, high safety coefficient
Main Application
Oil, natural gas and water transmission pipelines, petrochemical pipeline systems, structural & mechanical components
MOQ
1 Ton / Negotiable
Delivery Time
In-stock: 3–7 days; custom production: 10–30 working days
Certification
MTC, EN 10204 3.1 / 3.2, full API standard inspection reports
Custom Service
Custom cutting, pipe end processing, anti-corrosion coating, personalized packaging
02API 5L Grade Series & Delivery Conditions
X52 sits in the middle of the API 5L strength ladder — the grade number indicates the minimum yield strength in Ksi, which is why X52 is also designated L360 (360 MPa).
API 5L Grade
Min. Yield (Ksi)
Min. Yield (MPa)
A25
25
172
A
30
207
B
35
241
X42
42
290
X46
46
317
X52 / L360
52
360
X60
60
414
X65
65
448
X70
70
483
X80
80
552
Acceptable delivery conditions for API 5L PSL2 line pipes (designated by suffix letter):
R — As-rolled, normalizing rolled or normalized formed
N — Normalized, or normalized formed, or normalized and tempered
Q — Quenched and tempered
M — Thermomechanical rolled, or thermomechanical formed
Note: X52N (L360N) denotes the normalized / normalized formed delivery condition — the data in sections 03 and 04 below apply to X52N. Other delivery conditions are available on request.
03Chemical Composition
Chemical composition (max, %) of API 5L PSL2 X52N steel pipe — tighter phosphorus and sulfur limits are one of the key differences from PSL1.
Element
Max %
Element
Max %
C (Carbon)
0.24
V (Vanadium)
0.10
Si (Silicon)
0.45
Nb (Niobium)
0.05
Mn (Manganese)
1.40
Ti (Titanium)
0.04
P (Phosphorus)
0.025
Other
e
S (Sulfur)
0.015
—
—
Note e: Unless otherwise agreed, Cu ≤0.50%, Ni ≤0.30%, Cr ≤0.30% and Mo ≤0.15%. Technical data is based on API Spec 5L (2007 version); the exact product analysis of each pipe is stated in its Mill Test Certificate (MTC / EN 10204 3.1 or 3.2).
04Mechanical Properties
Room-temperature mechanical properties of API 5L PSL2 X52N (L360N) line pipe — strength and ductility balanced for high-pressure pipeline service.
360 – 530Yield Strength Rt0.5MPa
460 – 760Tensile Strength RmMPa
≤0.93Ratio Rt0.5 / RmMaximum
52 KsiMin. Yield Strength360 MPa
Pipe Grade
Yield Strength Rt0.5 (MPa)
Tensile Strength Rm (MPa)
Ratio Rt0.5 / Rm Max.
L360N / X52N
360 to 530
460 to 760
0.93
Note: Values apply to both seamless and welded PSL2 pipe as specified in API Spec 5L (2007 version). Elongation and CVN impact values are verified per order agreement and recorded in the inspection reports supplied with delivery.
05Strict Testing Standards
As a PSL2-grade pipeline steel pipe, API 5L X52 requires comprehensive performance and non-destructive testing to meet high-standard pipeline safety specifications.
Test Items
Test Purpose
Chemical Product Analysis
Verify element compliance with API 5L PSL2 standards
Tensile & Bending Test
Ensure mechanical strength and ductility stability
Hydrostatic Pressure Test
Check pressure resistance and pipeline tightness
Flattening Test
Detect pipe body structural uniformity
CVN Impact Test
Guarantee low-temperature toughness for PSL2 high-standard service
MT & NDT Non-destructive Testing
Eliminate internal and surface defects, ensure full qualified rate
06Application Fields & Procurement
From long-distance transmission trunk lines to plant piping and structural components — one grade covering the full pipeline value chain.
Oil & Gas Industry
Long-distance crude oil and natural gas transmission trunk pipelines.
Fluid Transmission
Industrial water, conventional liquid and gas conveying pipeline systems.
Petrochemical Engineering
Petrochemical plant supporting pipeline and medium-pressure transmission equipment.
Structural & Mechanical
Pipeline structural supports and special mechanical component fabrication.
1
Full-Spec Stock
Seamless and welded X52 PSL2 pipes in stock, delivered within 3–7 days.
2
Custom Processing
Custom cutting, pipe end processing and beveling, completed within 10–30 working days.
3
Anti-corrosion & Packing
Anti-corrosion coating and personalized packaging for export shipment.
4
API Inspection
Strict API standard inspection with MTC and EN 10204 3.1 / 3.2 documents.
Full-spec API 5L PSL2 X52 seamless and welded line pipes from sufficient stock
NPS 1/2" – 48" OD with SCH5 to SCH XXS wall thickness options
Custom cutting, pipe end processing, anti-corrosion coating and packaging
MTC, EN 10204 3.1 / 3.2 and full API standard inspection reports
Get Your API 5L PSL2 X52 Line Pipe Quotation Now
Send us your pipe type (seamless / welded), OD and wall thickness (or schedule), length, quantity, end type and coating requirements. We will reply with the latest stock list, detailed technical parameters and competitive wholesale prices within 24 hours.
BBN Steel has established a complete set of production and supplier management system processes to ensure the improvement of product quality and better service to users.
Production Control
BBN Steel has established a complete production quality control process to ensure every link from research and development to mass production.
Supplier management
Our supplier selection will consider factors such as health and safety, ethics, environmental protection, price and quality to better serve customers.
Certification & Patent
We have successively won various international authoritative certifications, GB /T19001-ISO9001: 2000 quality management system was implemented.
After sales service
We provide booking space, shipping tracking service and after-sales service, we will always be first-class products and perfect pre-sale and after-sales service.
Get in Touch
Welcome to contact us through online consulting, emails and hotline if you are interested in our company or products. Our staff will reply you within 24 hours.
Address: HIGH-TECH DEVELOPMENT ZONE, ZHENGZHOU, CHINA
