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API 5L Grade x60 Line Pipe

Api 5l X60 Psl2 Seamless and Welded Pipe, X60 Grade PSL1 Line Pipe, Supplier Of API 5L Grade L415 X60 Pipe

API 5L Grade X60 Carbon Steel Pipes

API 5L Grade X60 Seamless Steel Pipes

API 5L X60 Pipe Specification

Product Specification : API 5L, PSL-1, PSL-2

Size: 1/2" to 24", * size above 24” NPS can be arranged on request

Schedule: SCH10, SCH 40, SCH 80, SCH 160 To SCH XXS

as per thickness mention in API 5L.

Type : Seamless, Welded, ERW, L-SAW construction

Grade : Grade X60 And L415


API 5L X60 pipes have minimum yield strength of 415 MPA and tensile strength of approximately 520 MPA which allows them to withstand extremely high and low temperatures and due to which these grade pipes are in the highest demand for cross country pipelines. When technical demands are stringent and pipes with high tensile strength are required, the client will always choose API 5L Grade X60 PSL1 pipes.

They are also combustion and shock resistant making them ideal for use in mining and drilling machinery. Due to the relatively low content of Sulphur and Phosphorus of API 5L Grade X60, these pipes also have high corrosion resistance against acids especially hydrogen sulphide which can cause cracking due to sulphur stress. Other applications include chemical, fertilizer, sugar, paper, engineering, power generation, etc.

Corrosion resistance and the ability to work in high-pressure situations makes the pipes ideal for petroleum, petrochemical, oil and gas industries. It is used to convey gas, steam and fluids. There are two differentiation levels for these pipes PSL-1 and PSL-2. PSL-1 pipes don’t require impact and non-destructive testing. This is because both levels have different requirements and even different material compositions.

Click here to request a quote for API 5L Grade X60 Seamless Pipe.

Table of Contents

We at N-Pipe Solutions Inc. stock a wide range of API 5L pipes

  • Pipes are offered in Grade X60 / L415.
  • Pipes are offered in product specification level PSL-1 and PSL-2.
  • Pipes are offered in Seamless, ERW and L-SAW construction.
  • Seamless Pipes are offered from size 1/2” NPS up to 24” NPS
  • ERW pipes are offered from size 1/2” NPS up to 24” NPS
  • SAW pipes are offered from size 16” NPS up to 100” NPS.
  • Pipes thickness range from SCH 20 up to SCH XXS and as per thickness mention in API 5L.
  • These pipes can be supplied in a single random length of 4 – 7 Meters long and double random length of 7 – 12 Meters long, if there is a client’s requirement, we can also provide fixed length pipes.
  • Pipes can be offered with Mill test certificate as per EN 10204 3.1 and 3.2
  • Pipes can be supplied with additional specifications NACE MR0175, NACE MR0103, H2 Service, Wet H2S Service.
  • Pipes can be offered under any Third-party inspection agency of client choice.

N-Pipe Solutions Inc. is a major supplier of API 5L Grade X60 pipes from India. We provide high-quality pipes to clients throughout the world. Pipes are stock in NPS/NB dimension as per API 5L in various thicknesses as per clients requirements. All pipes supplied by us are duly inspected by our in-house quality control department before being supplied to the client. All pipes are available with complete traceability and mill test certificate as per EN 10204 3.1.

We provide the best competitive prices to our clients backed by quality service.


API 5L 45th Edition Specification for Line Pipe

Scope

Specified the manufacture of two product levels (PSL1 and PSL2) of seamless and welded steel pipe for the use of a pipeline in the transportation of petroleum and natural gas. For material use in a Sour service application refer to Annex H and for offshore service application refer to Annex J of API5L 45th.


Delivery Condition

PSL Delivery Condition Pipe grade
PSL1 As-rolled, normalized, normalizing formed A
As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered or if agreed Q&T SMLS only B
As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered X42, X46, X52, X56, X60, X65, X70
PSL 2 As-rolled BR, X42R
Normalizing rolled, normalizing formed, normalized or normalized and tempered BN, X42N, X46N, X52N, X56N, X60N
Quenched and tempered BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q
Thermomechanical rolled or thermomechanical formed BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M
Thermomechanical rolled X90M, X100M, X120M
The suffice (R, N, Q or M) for PSL2 grades, belongs to the steel grade

Ordering Information

The purchase order shall include the quantity, PSL level, type or Grade, reference to API5L, outside diameter, wall thickness, length and any applicable annexes or additional requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coatings or end finish.


Process of manufacturing

Type of Pipe PSL 1 PSL 2
Grade A Grade B X42 to X70 B to X80 X80 to X100
SMLS ✔ ✔ ✔ ✔ ✔
LFW ✔ ✔ ✔
HFW ✔ ✔ ✔ ✔
LW ✔
SAWL ✔ ✔ ✔ ✔ ✔
SAWH ✔ ✔ ✔ ✔ ✔
SMLS – Seamless, without weld
LFW – Low frequency welded pipe, <70 kHz
HFW – High frequency welded pipe, >70 kHz
SAWL – Submerge-arc welding longitudinal welded
SAWH - Submerge-arc welding helical welded

Starting Material

Ingots, blooms, billets, coils or plates used for the manufacture of pipe shall be made by the following processes, basic oxygen, electric furnace or open hearth in combination with a ladle refining process. For PSL2, the steel shall be killed and melted according to a fine grain practice. Coil or plate used for PSL2 pipe shall not contain any repair welds.


Chemical Composition for PSL 1 pipe with t ≤ 0.984”

Steel Grade Mass fraction, % based on heat and product analyses a,g
C Mn P S V Nb Ti
max b max b max max max max max
Seamless Pipe
X60 0.28 e 1.40 e 0.3 0.3 f f f
Welded Pipe
X60 0.26 e 1.40 e 0.3 0.3 f f f
a. Cu ≤ = 0.50% Ni; ≤ 0.50%; Cr ≤ 0.50%; and Mo ≤ 0.15%,
b. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; and up to a maximum of 2.00% for grade L485 or X70.,
c. Unless otherwise agreed NB + V ≤ 0.06%,
d. Nb + V + TI ≤ 0.15%,
e. Unless otherwise agreed.,
f. Unless otherwise agreed, NB + V = Ti ≤ 0.15%,
g. No deliberate addition of B is permitted and the residual B ≤ 0.001%

Chemical Composition for PSL 2 pipe with t ≤ 0.984”

Steel Grade Mass fraction, % based on heat and product analyses Carbon Equiv a
C Si Mn P S V Nb Ti Other CE IIW CE Pcm
max b max max b max max max max max max max
Seamless and Welded Pipe
X60N 0.24f 0.45f 1.40f 0.025 0.015 0.10f 0.05f 0.04f g,h,l As agreed
X60Q 0.18f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25
Welded Pipe
X60M 0.12f 0.45f 1.60f 0.025 0.015 g g g h,l 0.43 0.25
a. SMLS t>0.787”, CE limits shall be as agreed. The CEIIW limits applied fi C > 0.12% and the CEPcm limits apply if C ≤ 0.12%,
b. For each reduction of 0.01% below the specified maximum for C, an increase of 0.05% above the specified maximum for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; up to a maximum of 2.00% for grades ≥ L485 or X70, but ≤ L555 or X80; and up to a maximum of 2.20% for grades > L555 or X80.,
c. Unless otherwise agreed Nb = V ≤ 0.06%,
d. Nb = V = Ti ≤ 0.15%,
e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15%,
f. Unless otherwise agreed,
g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15%,
h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50%,
i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50%,
j. B ≤ 0.004%,
k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% and MO ≤ 0.80%,
l. For all PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001%.

Tensile and Yield – PSL1 and PSL2

Pipe Grade Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 1 Seam of Welded Pipe
Yield Strength a Tensile Strength a Elongation Tensile Strength b
Rt0,5 PSI Min Rm PSI Min (in 2in Af % min) Rm PSI Min
X60 60,200 75,400 c 75,400
a. For intermediate grade, the difference between the specified minimum tensile strength and the specified minimum yield for the pipe body shall be as given for the next higher grade.
b. For the intermediate grades, the specified minimum tensile strength for the weld seam shall be the same as determined for the body using foot note a.
c. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation:
Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units
Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows
– For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces.
– For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
– For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch)
Pipe Grade Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 2 Seam of Welded Pipe
Yield Strength a Tensile Strength a Ratio a,c Elongation Tensile Strength d
Rt0,5 PSI Min Rm PSI Min R10,5IRm (in 2in) Rm (psi)
Af %
Minimum Maximum Minimum Maximum Maximum Minimum Minimum
X60N,X60Q,S60M 60,200 81,900 75,400 110,200 0.93 f 75,400
X65Q,X65M 65,300 87,000 77,600 110,200 0.93 f 76,600
X70Q,X65M 70,300 92,100 82,700 110,200 0.93 f 82,700
X80Q,X80M 80,.500 102,300 90,600 119,700 0.93 f 90,600
a. For intermediate grade, refer to the full API5L specification.
b. for grades > X90 refer to the full API5L specification.
c. This limit applies for pies with D> 12.750 in
d. For intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using foot a.
e. for pipe requiring longitudinal testing, the maximum yield strength shall be ≤ 71,800 psi
f. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation:
Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units
Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows
– For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces.
– For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
– For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch
g. Lower values fo R10,5IRm may be specified by agreement
h. for grades > x90 refer to the full API5L specification.

Tolerances Outside Diameter, Out of roundness and wall thickness

Specified Outside Diameter D (in) Diameter Tolerance, inches d Out-of-Roundness Tolerance in
Pipe except the end a Pipe end a,b,c Pipe except the End a Pipe End a,b,c
SMLS Pipe Welded Pipe SMLS Pipe Welded Pipe
< 2.375 -0.031 to + 0.016 – 0.031 to + 0.016 0.048 0.036
≥2.375 to 6.625 0.020D for 0.015D for
+/- 0.0075D – 0.016 to + 0.063 D/t≤75 D/t≤75
By agreement for By agreement for
D/t≤75 D/t≤75
>6.625 to 24.000 +/- 0.0075D +/- 0.0075D, but max of 0.125 +/- 0.005D, but max of 0.063 0.020D 0.015D
>24 to 56 +/- 0.01D +/- 0.005D but max of 0.160 +/- 0.079 +/- 0.063 0.015D for but max of 0.060 0.01D for but max of 0.500
For For
D/t≤75 D/t≤75
By agreement By agreement
for for
D/t≤75 D/t≤75
>56 As agreed
a. The pipe end includes a length of 4 in ate each of the pipe extremities
b. For SMLS pipe the tolerance apply for t≤0.984in and the tolerances for the thicker pipe shall be as agreed
c. For expanded pipe with D≥8.625in and for non-expanded pipe, the diameter tolerance and the out-of-roundness tolerance may be determined using the calculated inside diameter or measured inside diameter rather than the specified OD.
d. For determining compliance to diameter tolerance, the pipe diameter is defined as the circumference of the pipe in any circumferential plane divide by Pi.
Wall thickness Tolerances a
t inches inches
SMLS pipe b
≤ 0.157 -1.2
> 0.157 to < 0.948 + 0.150t / – 0.125t
≥ 0.984 + 0.146 or + 0.1t, whichever is the greater
– 0.120 or – 0.1t, whichever is the greater
Welded pipe c,d
≤ 0.197 +/- 0.020
> 0.197 to < 0.591 +/- 0.1t
≥ 0.591 +/- 0.060
a. If the purchase order specifies a minus tolerance for wall thickness smaller than the applicable value given in this table, the plus tolerance for wall thickness shall be increased by an amount sufficient to maintain the applicable tolerance range.
b. For pipe with D≥ 14.000 in and t≥0.984in, the wall thickness tolerance locally may exceed the plus tolerance for wall thickness by an additional 0.05t provided that the plus tolerance for mass is not exceeded.
c. The plus tolerance for wall thickens does not apply to the weld area
d. See the full API5L spec for full details

Hydrostatic test

Pipe to withstand a hydrostatic test without leakage through the weld seam or the pipe body. Jointers need not be hydrostatic tested provide the pipe sections used were successfully tested.


Bend Test

No cracks shall occur in any portion of the test piece and not opening of the weld shall occur.


Acceptance criteria for flattening test shall be

  • EW pipes D<12.750 in
  • ≥ X60 with T≥0.500in, there shall be no opening of the weld before the distance between the plates is less than 66% of the original outside diameter. For all grades and wall, 50%.
  • For pipe with a D/t > 10, there shall be no opening of the weld before the distance between the plates is less than 30% of the original outside diameter.
  • For other sizes refer to the full API5L specification


CVN impact test for PSL2

Many PSL2 pipe sizes and grades require CVN. Seamless pipe is to be tested in the body. Welded pipe is to be tested in the Body, Pipe Weld and heat affected zone (HAZ). Refer to the full API5L specification for the chart of sizes and grades and required absorbed energy values.


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