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API 5L PSL2 X60 Line Pipe (L415N / X60N) | Seamless & Welded, 415 MPa Min Yield, 520 MPa Min Tensile, NPS 1/2" – 48" OD
ANSI / API Specification 5L, 44th Edition (1 October 2007) | PSL2 | X60 / L415N / X60N | Yield 415 MPa Min – 565 MPa Max, Tensile 520 – 760 MPa, Rt0.5/Rm ≤ 0.93 | Line pipe sizes NPS 1/2" to 48" OD, wall thickness SCH 5 to SCH XXS | Seamless, ERW, Welded, Fabricated & CDW | For Conveying Gas, Water, Oil and Other Liquids
415 MPa Min Yield, 520 MPa Min TensileX60 — written L415N / X60N at PSL2 — is the 415 MPa strength level of API 5L: a minimum yield strength of 415 MPa (60,200 psi) and a minimum tensile strength of 520 MPa (75,400 psi).
PSL2 with Mandatory CVN TestingSupplied to product specification level 2 for oil, gas, water and conventional liquid transmission. PSL2 adds mandatory Charpy V-notch impact testing, tighter chemistry and extended non-destructive testing.
A Defined Strength Window, Not Just a MinimumPSL2 X60N is quoted with both limits — yield 415–565 MPa, tensile 520–760 MPa and a yield-to-tensile ratio of 0.93 max — which is the margin a pressure-governed line design is checked against.
01Product Overview
API 5L PSL2 X60 — designated L415N in the SI system and written X60N when the delivery-condition suffix is attached — is a high-strength carbon steel line pipe for petroleum and natural gas pipeline transportation systems, supplied to product specification level 2. The required minimum yield strength is 415 MPa (60,200 psi) with a maximum of 565 MPa, and the tensile strength runs 520 to 760 MPa, with the yield-to-tensile ratio held to 0.93 maximum.
X60 is bought when the line has to carry a higher design pressure than the lower grades can carry at an economical wall, and the project wants the PSL2 package behind it: mandatory Charpy V-notch impact testing, a controlled low-impurity chemistry (C 0.24 max, P 0.025 max, S 0.015 max on the source data sheet) with carbon-equivalent control, controlled delivery conditions and extended non-destructive testing. It is supplied seamless, ERW, welded, fabricated and cold drawn welded, and is used for conveying gas, water, oil and other liquids, for oil and gas transmission, and for structural and mechanical components where a higher strength pipe is needed.
1/2" – 48"Nominal Pipe Size O.D.Line pipe size range
02Technical Specifications
API 5L PSL2 X60 (L415N / X60N) line pipe across the full size and wall programme, with end preparation, coating and inspection handled on the same order.
Item
Specification Details
Steel Grade
API 5L PSL2 X60 (L415N / X60N)
Executive Standard
Specification for Line Pipe — ANSI / API Specification 5L, 44th Edition, 1 October 2007
Product Specification Level
PSL2PSL2PSL1 on request
Product Type
Seamless, ERW, Welded, Fabricated and CDW Line Pipe
Line Pipe Sizes
Nominal Pipe Size 1/2" to 48" O.D.
Wall Thickness
SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XS, SCH XXS — all API 5L X60 pipe thicknesses available SCH 40SCH 80SCH 160SCH XXS
Conveying gas, water, oil and other liquids — oil and gas transmission, structural application and mechanical components
Surface / Coating
Supplied bare, or coated to the project specification — coating type confirmed with your enquiry BareCoated
Custom Production
Custom cutting, pipe end processing, anti-corrosion coating and personalized packaging to your specification
MOQ
From 1 metric ton (the smallest quantity band on the lead-time table below) — larger tonnages negotiable
Delivery Time
5 days for 1 – 10 metric tons, 10 days for 10 – 50 metric tons, negotiable above 50 metric tons
Certification
MTC / EN 10204 3.1 / EN 10204 3.2 / Full API PSL2 standard inspection reports
Payment Terms
L/C, T/T, D/P, Western Union, Paypal, Money Gram
Note: NPS is a size designation, not a measured dimension — the actual outside diameter and wall thickness of the pipe you receive follow the schedule and the standard’s dimensional tables. Not every NPS size is produced in every schedule or by every manufacturing route, and PSL2 supply is tied to a delivery-condition suffix, so send us the outside diameter, wall thickness (or schedule), length, manufacturing type, PSL level, delivery condition suffix and end finish and we will confirm stock status and the exact item before you order.
03Grade Designation
X60 is a numbered grade — the number is the strength level, and at PSL2 it takes a suffix letter that identifies the delivery condition.
Designation Segment
Meaning in API Specification 5L
X
The prefix of the numbered high-strength grades — the grades above the letter grades (Grade A / Grade B)
60
The specified minimum yield strength in US customary units — 60 ksi = 60,000 psi, given as 60,200 psi (415 MPa) on the source data sheet
L415
The SI designation of the same grade — L for line pipe, 415 for a specified minimum yield strength of 415 MPa
X60N
The PSL2 form of the name — the grade X60 followed by the delivery-condition suffix, so X60N and L415N are the same pipe as X60
N
Delivery-condition suffix at PSL2 — normalizing rolled, normalized formed, normalized, or normalized and tempered pipe (see chapter 07)
PSL2
Product Specification Level 2 — see chapter 04 for what the level changes
Note:X60, L415 and X60N are three ways of naming the same pipe: the US customary name where 60 is ksi, the SI name where 415 is the specified minimum yield in MPa, and the PSL2 form with the delivery-condition suffix attached. Unlike the letter grades, the number converts — take the 415 MPa minimum yield from the mechanical table as the cross-check on a mill certificate. The trailing N is not part of the strength name: at PSL2 it records the delivery condition, so the same strength level also exists as X60Q, X60M and X60R. The designation breakdown above is standard background for this grade family; the composition and mechanical data on this page are the X60N values.
04Product Specification Level: PSL2
Every API 5L grade, X60 included, can be ordered under either of two product specification levels. This page documents the PSL2 product.
Item
PSL1
PSL2 (this page)
Charpy V-Notch impact test
Not a PSL1 requirement
Mandatory CVN impact testing
Chemical composition
Basic maximum limits (C, Mn, P, S and the agreed residual limits)
Tighter limits, plus carbon-equivalent control
Strength data
Minimum yield and tensile values
Minimum and maximum yield and tensile values, with a yield-to-tensile ratio limit
Inspection & NDT
The applicable inspection for the manufacturing route
Extended mandatory non-destructive testing
Traceability & documentation
Standard mill documentation
Stricter traceability and certification package
Note: The chemical and mechanical data on this page are the PSL2 values for X60N as given in the source data sheet. PSL1 X60 can be supplied on request, but the exact PSL2 limits, carbon-equivalent requirement and test package are set by the edition of API Specification 5L (or ISO 3183) called up in your purchase order — tell us the level and the edition your project invokes and we will quote against that document.
05Chemical Composition
Chemical composition of API 5L PSL2 X60N steel pipe, given as maximum % in the source data sheet.
Grade
C max.
Si max.
Mn max.
P max.
S max.
V max.
Nb max.
Ti max.
Other
API 5L PSL2 X60N
0.24
0.45
1.40
0.025
0.015
0.10
0.05
0.04
e
Note: The last column carries footnote e of the source table, which reads unless otherwise agreed, Cu ≤ 0.50%, Ni ≤ 0.30%, Cr ≤ 0.30% and Mo ≤ 0.15% — these are the residual-element limits that apply unless your order says otherwise. Unlike the lower grades, X60N carries its own figures in the micro-alloying columns: V 0.10 max, Nb 0.05 max and Ti 0.04 max, which is how the pipe reaches 415 MPa minimum yield at 0.24 max carbon. The header of the source table is annotated “chemical composition (a, %)” but the text of that footnote was not included in the data we hold — the composition footnotes of the standard cover items such as the carbon / manganese trade-off, so confirm the applicable footnote set against the edition called up in your order and the MTC. PSL2 additionally places a carbon-equivalent requirement on the pipe, and the limit and formula (CEV / CET / Pcm) depend on the edition and the carbon level — no single value is quoted here rather than picking one for you.
06Mechanical Properties
Mechanical properties of API 5L PSL2 X60N (L415N) steel pipe, with the specified minimum values in US customary units as stated on the source page.
Pipe Grade
Yield Strength Rt0.5 Min (MPa)
Yield Strength Rt0.5 Max (MPa)
Tensile Strength Rm Min (MPa)
Tensile Strength Rm Max (MPa)
Ratio Rt0.5/Rm Max.
Specified Min Yield (psi)
Specified Min Tensile (psi)
L415N or X60N
415
565
520
760
0.93
60,200
75,400
Note: Unlike a PSL1 data sheet, this one gives both ends of the strength range — yield 415–565 MPa and tensile 520–760 MPa — together with the maximum yield-to-tensile ratio of 0.93, which is what limits how close to the tensile strength the actual yield of a length may sit. The psi figures are the specified minimum values stated on the source page (60,200 psi yield and 75,400 psi tensile, equal to 415 MPa and 520 MPa); treat any further conversion as rounded and quote the MPa values on your enquiry. No elongation figure is given in the source, so none is quoted here: elongation for line pipe is calculated from the tensile strength and the specimen dimensions under the standard. PSL2 requires Charpy V-notch impact testing, but the required energy and test temperature are set by the edition, the wall thickness and your purchase order — those values are agreed at order stage and reported on the mill certificate.
07Manufacturing Types & Delivery Conditions
X60 is produced by every standard line pipe manufacturing route, and at PSL2 the delivery condition is written into the grade name as a suffix letter.
Manufacturing Type
What It Means
Seamless
Produced from a solid billet with no weld seam — the usual route for the smaller diameters and heavier walls
ERW
Electric-resistance welded — the standard route for small and medium diameters
Welded
Welded longitudinally or helically from plate or strip for the larger diameters
Fabricated
Fabricated to order for sizes or wall thicknesses outside the standard mill programme
CDW
Cold drawn welded — cold finishing for tighter dimensional tolerance and a smoother bore
API 5L PSL2 line pipe carries a suffix letter for the delivery condition. The pipe documented on this page is X60N:
Note: The suffix is part of the order, not an afterthought: it fixes the heat treatment the pipe receives, and it is the condition the mechanical values on the MTC are measured in. The 415–565 MPa / 520–760 MPa window above is the X60N data; the other suffixes are supplied to the same grade and their values are confirmed against the item — the same strength level is also available as X60Q, X60M and X60QS. Tell us the service (low temperature, sour service, structural use), the diameter and wall and the required mechanical properties, and we will quote the delivery condition that satisfies them.
08Inspection & Testing
The tests carried out on API 5L PSL2 X60 line pipe, and what each one covers.
Test Item
Test Purpose
Chemical Composition Analysis (Product Analysis)
Verifies the chemical composition of the finished pipe complies with the PSL2 limits
Tensile Test
Confirms the 415 MPa minimum yield and 520 MPa minimum tensile strength, the maximum values and the ratio limit
Hydrostatic Test
Validates pressure resistance and the overall tightness of the line — every length is pressure tested
Bend Test
Checks the ductility of the pipe body and of the weld seam where applicable
Flattening Test
Checks pipe body uniformity and eliminates internal defects, applied per the applicable clause for the route
CVN Impact Test (PSL2 Mandatory)
Charpy V-notch impact test — mandatory for PSL2 line pipe, carried out to the temperature and energy agreed in the purchase order
MT Magnetic Particle Testing
Magnetic particle examination that removes surface defects
NDT Non-destructive Testing
Non-destructive examination that removes microscopic internal defects
Note: Which of these tests apply, and at what level, depends on the manufacturing route, the diameter and wall, the PSL level and your purchase order — not on the grade alone. Tell us the specification and inspection class your project invokes and we will confirm the exact test package and issue the MTC and, where required, EN 10204 3.1 / 3.2 or a third-party inspection report (SGS and others) with the delivery.
09Applications & Typical Uses
API 5L PSL2 X60 is a higher-strength pipeline steel — it is specified where gas, water, oil or other liquids are moved at a design pressure that the lower grades would meet only with a heavier wall, and where the project also wants the PSL2 test package.
Oil & Gas Transmission
Onshore and offshore crude oil and natural gas transmission lines where 415 MPa minimum yield is the design basis.
Gas, Water & Liquid Conveyance
Conveying gas, water, oil and other liquid media under pressure in industrial and municipal pipeline systems.
Structural & Mechanical Use
Pipeline structural components and industrial mechanical parts where a higher-strength, weldable carbon steel pipe is needed.
Higher-Pressure Trunk Lines
Long-distance trunk and gathering lines where a higher minimum yield keeps the required wall thickness and steel tonnage down.
Coated & Buried Lines
Coated line pipe for buried service, where the coating protects the line and the steel carries the pressure and the impact requirement.
Application Industry
Typical Applications
Oil & Gas Transmission
Crude oil and natural gas pipeline transportation systems in the petroleum and natural gas industries
Gas, Water & Liquid Conveyance
Conveying gas, water, oil and other liquids under pressure
Structural & Mechanical Use
Pipeline structural components and industrial mechanical parts
Higher-Pressure Trunk Lines
Long-distance trunk and gathering lines built to the line pipe specification
Note: X60 sits above the middle of the API 5L strength ladder — X52 (L360) at 360 MPa, X60 (L415) at 415 MPa and X65 (L450) at 450 MPa minimum yield (standard series values). X60 is the usual choice when the pressure calculation needs more yield than X52 but the project does not want to pay for X65; X65 is the step taken when it does. Send us the design pressure, diameter and fluid and we will tell you which grade the line actually needs.
10Processing, End Preparation & Supply
Every order can be cut, end-prepared, coated and documented to your specification, so the pipe arrives on site ready to weld.
1
Cutting to Length
Custom cutting to the exact lengths your line schedule calls for, single or double random, or fixed cut lengths.
2
End Preparation
Plain, bevel, screwed or threaded ends — bevel prepared to your welding procedure specification.
3
Coating & Packaging
Anti-corrosion coating and personalized packaging applied to the project specification before shipment.
4
Inspection & Certified Delivery
Hydrostatic test, CVN impact test, flattening test, bend test, MT and NDT carried out as specified, with MTC, EN 10204 3.1 / 3.2 and third-party inspection arranged where required.
We supply high-quality API 5L PSL2 X60 (L415N) line pipe with strict PSL2 quality control and full traceability, in seamless, ERW, welded, fabricated and CDW manufacture across the NPS 1/2" to 48" size range. We provide one-stop processing services including custom cutting, pipe end processing, anti-corrosion coating and personalized packaging. All products are equipped with official MTC test reports, with EN 10204 3.1 / 3.2 and third-party inspection supported. Welcome to contact us for professional quotations and technical support!
11Frequently Asked Questions
Short answers to the questions we are asked most often about API 5L PSL2 X60. For anything not covered here, send us your line schedule and specification.
Q1What does X60 mean, and is it the same as L415?
Yes — X60, L415 and X60N are three names for the same pipe. X60 is the US customary name, where the number is the specified minimum yield strength in ksi (60 ksi, given as 60,200 psi on the source data sheet); L415 is the SI name, where L stands for line pipe and 415 is the same minimum yield in MPa. At PSL2 the delivery-condition suffix is added, so the pipe is written X60N or L415N.
Q2What does the N in X60N stand for?
At PSL2 the grade name carries a suffix letter for the delivery condition. N covers normalizing rolled, normalized formed, normalized, and normalized and tempered pipe — the heat-treatment route the 415–565 MPa yield and 520–760 MPa tensile values on this page are measured in. The other suffixes are R (as-rolled), Q (quenched and tempered) and M (thermomechanical rolled or formed), and the same X60 strength level can be supplied in any of them — tell us which condition your specification calls up.
Q3Why would I specify PSL2 rather than PSL1?
Both levels exist for every API 5L grade, X60 included. PSL2 adds mandatory Charpy V-notch impact testing, tighter chemical limits with carbon-equivalent control, both minimum and maximum strength values with a yield-to-tensile ratio limit, extended non-destructive testing and stricter traceability. Low-temperature, sour, offshore and high-consequence lines usually call up PSL2; a standard onshore service with no impact requirement is often specified at PSL1. Tell us the service and the edition your project invokes — PSL1 X60 is supplied on request.
Q4What sizes, wall thicknesses and end finishes can you supply?
Line pipe sizes from NPS 1/2" to 48" O.D., with wall thickness in SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XS and SCH XXS, with all API 5L X60 thicknesses available. Ends are supplied plain, bevel, screwed or threaded. Not every size is produced in every schedule or by every route, so send the outside diameter, schedule or wall thickness, length, manufacturing type and end finish and we will confirm the exact item and its stock status.
Q5What tests and documents come with the pipe?
The test programme covers chemical product analysis, tensile test, hydrostatic test, bend test, flattening test, CVN impact test (mandatory at PSL2), MT magnetic particle testing and NDT non-destructive testing. Every length is hydrostatically tested before it leaves. Documentation is the MTC, with EN 10204 3.1, EN 10204 3.2 and third-party inspection (SGS and others) supported. Which tests apply, and at what impact temperature and energy, depends on the route, size, wall, PSL level and your purchase order — tell us the inspection class you need and we will confirm the package.
Q6How does X60 compare with X52 and X65?
They are neighbours on the same API 5L ladder — X52 (L360) at 360 MPa, X60 (L415) at 415 MPa and X65 (L450) at 450 MPa minimum yield, with minimum tensile rising in step. The specification level, size range, testing and coating options are handled the same way for all three, so the choice is normally a pressure and wall-thickness calculation: X60 buys yield over X52 without the step up to X65. Send us the design pressure, diameter and fluid and we will size the grade and the wall for you.
Send us your outside diameter and wall thickness (or schedule), length, manufacturing type (seamless / ERW / welded / fabricated / CDW), PSL level, delivery condition suffix (N, Q, M or R), CVN impact requirement, end finish, coating requirement and quantity. We will reply with the latest stock status, competitive wholesale price and complete certification documents within 24 hours.
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