Skip to content

API Line Pipe

API 5L X 52 PSL 1

DescripstionGRADESizeSCH
Carbon steel SMLS Pipeapi 5l x52 psl1 pipe
api 5l x52 psl2 pipe1/2” To 24”10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS
Carbon steel SMLS Pipeapi 5l x52 psl1 pipe
api 5l x52 psl2 pipe1/2” To 24”10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS
Carbon steel ERW, LSAW, SAW, EFW Pipeapi 5l x52 psl1 pipe
api 5l x52 psl2 pipe16” To 84”10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS
Carbon steel ERW, LSAW, SAW, EFW Pipeapi 5l x52 psl1 pipe
api 5l x52 psl2 pipe16” To 84”10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS

API Standard Specification for Line Pipe

API 5L X52 PSL1 Pipe Dimensional Range & Standard Specification

Sr. No.MaterialSizeSch. & Swg.Specification
1API 5l B Seamless Pipe15 NB
To
150 NB 200 NB
To
600 NBSch. 40s
to
Sch. XXs
& Sch. 20
to
Sch. 160ASTM A 53 A / B
A-106 Gr. A,B,C
2API 5l B Welded (ERW) Pipe15 NB
To
150 NB
&
200 NB
To
750 NBSch. 40s
to
Sch. XXs
&
Sch. 20
to
Sch. 160ASTM A 53 A / B
API 5L
3API 5l B Low Temperature Carbon Steel15 NB
To
500 NBSch. 40s
to
Sch. XXsA-333 Gr. 6
Seamless
Note:-
Other Specification
AvailableAPI 5L – A,B, X – 42, 46, 52, 56,
60, 65, 70, 80
Special TubeSaw Pipes & Steam Pipes
Precision Tubes
Fabricated Pipe (with radiography)
In Form ofRound
Hydraulic Tube &
Horn Tube.
In Length ofStandard
Double &
In Cut length also.
Value Added ServiceDraw & Expansion as per required Size & Length
Heat Treatment
Bending
Galvanizing
Annealed
Sand Blasting
Machining Etc.
Test CertificateManufacturer Test Certificate
IBR Test Certificate (Form III-D)
Laboratory Test Certificate from Govt. Approved Lab.
Under Third Party Inspection with Excise Gate Pass to avail
Modvat benefit.

Production Standards & Material Qualities

| API 5L L245 / Gr. B (PSL 1) API 5L L290 / X42 (PSL 1) API 5L L245 / Gr. B (PSL 2) API 5L L290 / Gr. B (PSL 2) API 5L L320 / X46 (PSL 1) API 5L L320 / X46 (PSL 2) | API 5L L360 / X52 (PSL 1) API 5L L360 / X52 (PSL 2) API 5L L415 / X60 (PSL 1) API 5L L415 / X60 (PSL 2) API 5L L450 / X65 (PSL 1) API 5L L450 / X65 (PSL 2) | |---|---| | Line Pipe API 5L, PSL 1, PSL 2 CSA Z 245.1 EN ISO 3183 GOST 20295 | Gr A, X70-(N, M) Gr 241-Gr 359 L 245-L485 (N, M, NE, ME) K34-K60 |

API 5L X52 Products

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximumCARBON EQUIVALENT a
% MAXIMUM
CbSiMnbPSVNbTiOtherCEIIWCEPcm
SEAMLESS & WELDED PIPES
L485Q or X70Q0.18f0.45f1.8f0.0250.015gggh0.430.25
WELDED PIPE
L485M OR X70M0.12f0.45f1.7f0.0250.015gggh0.43f0.25
MECHANICAL REQUIREMENTS
Y.ST.SELONGATION
Mpa(psi)Mpa(psi)
minminmin
485(70 300)635(92 100)f
IMPACT TEST
AVG. ABSORBED ENERGYIND. ABSORBED ENERGY
Min.(joules)Min.(joules)
2720
API 5L PSL-1 X52API 5L PSL-2 X52
Tensile strength, min /max, psi (MPa)66,700(460)/ n/a66,700 / 110,200
Yield strength, min /max, psi (MPa)52,000 (300)/n/a52,000 / 76,900
  1. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for manganese is permissible, up to a maximum of 1.65% for > grades B, but < X52; up to

  2. maximum of 1.75% for grades >X52, but <x70; and="" up="" to="" a="" maximum="" of="" 2.00%="" for="" grade="" x70<="" li=""> </x70;>

  3. The sum of the niobium, vanadium, and titanium concentrations shall be < 0.06%

  4. Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium, and 0.12% maximum for molybdenum.

Line pipe – types of steel

Chemical Analysis(%) For Part Standard

StandardClassGradeCSiMnPSVNbTi
maxmaxmaxmaxmaxmaxmaxmax
APL 5L
ISO 3181PSL1L245 or B0.26-1.200.0300.030---
L290 or X420.26-1.300.0300.030---
L320 or X460.26-1.400.0300.030a,ba,bb
L360 or X520.26-1.400.0300.030bbb
L390 or X560.26-1.400.0300.030bbb
L415 or X600.26-1.400.0300.030ccc
L450 or X650.26-1.450.0300.030ccc
L485 or X700.26-1.650.0300.030ccc

Mechanical Properties

| Class | Grade | Yield Strength MPa | Yield Strength MPa | Y.S/T.S | | | | |---|---|---|---|---|---|---|---| | min | max | min | max | max | | | | | API 5L ISO3183 | PSL2 | L245R or BR L245N or BN L245Q or BQ L245M or BM | 245 | 450 | 415 | 655 | 0.93 | | L290R or X42R L290N or X42N L290Q or X42Q L290M or X42M | 290 | 495 | 415 | 655 | 0.93 | | | | L320N or X46N L320Q or X46Q L320M or X46M | 320 | 525 | 435 | 655 | 0.93 | | | | L360N or X52N L360Q or X52Q L360M or X52M | 360 | 530 | 460 | 760 | 0.93 | | | | L390N or X56N L390Q or X56Q L390M or X56M | 390 | 545 | 490 | 760 | 0.93 | | | | L415N or X60N L415Q or X60Q L415M or X60M | 415 | 565 | 520 | 760 | 0.93 | | | | L450Q or X65Q L450M or X65M | 450 | 600 | 535 | 760 | 0.93 | | | | L485Q or X70Q L485M or X70M | 485 | 635 | 570 | 760 | 0.93 | | | | L555Q or X80Q L555M or X80M | 555 | 705 | 625 | 825 | 0.93 | | | | L625M or X90M L625Q or X90Q | 625 | 775 | 695 | 915 | 0.95 | | | | L690M or X100M L690Q or X100Q | 690 | 840 | 760 | 990 | 0.97 | | |

Minimum Impact Energy

Specified Outside DiameterGradeCharp Imapct Test 0℃
Impact of Pipe BodyImpact of Weld
API 5L
ISO3183D≤762mm≤L485 or X702727
L555 or X804027
762mm< td="" style=“box-sizing: border-box;”><>≤L555 or X804027
1219mm< td="" style=“box-sizing: border-box;”><>≤L415 or X604027
>L415 or X60
≤L555 or X805427
>1422mm≤L415 or X604040
>L415 or X60
≤L555 or X805440

API 5L X52 PSL1 Pipe – delivery condition and surface

API 5L X52 PSL1 Pipe – straightness

Ends of the API 5L X52 PSL1 Pipe

Marking of API 5L X52 PSL1 Pipe and tube bundles

API 5L X52 PSL1 Pipe – surface protection

Complete information about API 5L x52 pipe steel given below:

Complete information about API 5L x52 pipe steel given below:

High yield seamless Pipe API 5L grade X52 PSL 2

Grade X 52 Q PSL 2

  • The steel pipe mentioned herein is substantially modified from the API 5L, X52 standard.

  • Pipes are fully killed and fine-grain steel material

  • NACE MR0175:”Satisfactory”

  • This steel offers enhanced yield tensile ratio of 0.87 (max) and impact values verified from as low as -50°C

  • This grade is also known as L360Q in USC Units

Grade X 52 Surface

Grade X 52 NDT

Grade X 52 Hydrostatic test

Grade X 52 Certification and traceability

Grade X 52 Dimensional control

Grade X 52 Pipe end:

Grade X 52 Protection

Description API 5L X 52 PSL 2 / L360 N/Q

CMnSiSPCuNiCrMoVNbTiSnBNAl total
Heat0,141,550,450,0050,0200,200,200,200,080,060,040,020,0150,00050,0090,055
Prod0,161,600,500,0050,0220,200,200,200,080,060,040,020,0200,00050,0090,060
Wall thicknessYield stressTensil strenghtElongation
T MMR N/MM2R N/MM2%
T <= 40MIN. 360490-62022
40 70MIN. 335

API 5L X 52 PSL 1