API 5L Sour Service Pipe | Grade B to X65

API 5L Sour Service / NACE Pipe

Grade B–X65 — MR0175 / HIC / SSC as ordered

Savoy Piping Inc. supplies API 5L sour-service line pipe when NACE and cracking tests are mandatory.

API 5L hub · Grade B Sour

Also see: API 5L seamless line pipe hub · Carbon seamless hub · CS buttweld.

Typical applications

Sour oil & gas gathering and transmission
H₂S process lines
Projects requiring HIC/SSC documentation

Selection guidance

State grade, PSL, product form and exact NACE/HIC/SSC annexes on every enquiry.

API 5L Seamless Line Pipe range

API 5L NACE MR 0175 Pipe Specification	API 5L / ISO 3183 Hot Rolled.
API 5L NACE MR 0175 Pipe Grades	API 5L Grade B PSL1, PSL 2 / API 5L X42 PSL1, PSL 2 / API 5L X46 PSL1, PSL 2 / API 5L X52 PSL1, PSL 2 / API 5L X56 PSL1, PSL 2 / API 5L X60 PSL1, PSL 2 / API 5L X65 PSL1, PSL 2 / X70 PSL1, PSL 2 / API 5L X70 PSL1 / PSL2 / API 5L X80 PSL1, PSL 2 / L24 PSL1, PSL 2, L29 PSL1, PSL 2, L320 PSL1, PSL 2, L360 PSL1, PSL 2, L39 PSL1, PSL 2, L415 PSL1, PSL 2, L40 PSL1, PSL 2, L485 PSL1, PSL 2
API 5L NACE MR 0175 Pipe Type	Seamless
API 5L NACE MR 0175 Pipe Outer Diameter Size	3/8" NB to 30" NB (Nominal Bore Size)
API 5L NACE MR 0175 Pipe Wall Thickness	Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thickness
API 5L NACE MR 0175 Pipe Length	5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size.
API 5L Pipe Ends	Plain Ends / Beveled Ends / Coupling
API 5L NACE MR 0175 Pipe Delivery Conditions	As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T
API 5L NACE MR 0175 Pipe Coating	Epoxy Coating / Colour Paint Coating / 3LPE Coating.
API 5L NACE MR 0175 Pipe Other Testing	NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, SWC, H2 SERVICE, IBR, Etc.
API 5L NACE MR 0175 Pipe Dimension	All Pipes Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.
API 5L NACE MR 0175 Pipe Value Added Services	Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment
API 5L NACE MR 0175 Pipe Packaging	Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
API 5L NACE MR 0175 Pipe Shipment & Transportation	By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet
API 5L NACE MR 0175 Pipe Material Test Certificate	Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab./ Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

Scope

ANSI / API 5L specifies 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; for offshore service Application, refer to Annex J of API 5L 4th Edition.

Process

Ingots, blooms, billets, coils or plates used for the manufacture of pipe shall be made via 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.

API 5L NACE MR 0175 Line Pipe PSL1 Chemical Requirement

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
A	0.22	0.9	0.3	0.3	–	–	–
B	0.28	1.2	0.3	0.3	c,	c,
X42	0.28	1.3	0.3	0.3
X46	0.28	1.4	0.3	0.3
X52	0.28	1.4	0.3	0.3
X56	0.28	1.4	0.3	0.3
X60	0.28 e	1.40 e	0.3	0.3	f	f	f
X65	0.28 e	1.40 e	0.3	0.3	f	f	f
X70	0.28 e	1.40 e	0.3	0.3	f	f	f
Welded Pipe
A	0.22	0.9	0.3	0.3	–	–	–
B	0.26	1.2	0.3	0.3	c,	c,
X42	0.26	1.3	0.3	0.3
X46	0.26	1.4	0.3	0.3
X52	0.26	1.4	0.3	0.3
X56	0.26	1.4	0.3	0.3
X60	0.26 e	1.40 e	0.3	0.3	f	f	f
X65	0.26 e	1.4 e	0.3	0.3	f	f	f
X70	0.26e	1.65 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 max. concentration for carbon, and increase of 0.05% above the specified max. concentration for Mn is permissible, up to a max. of 1.65% for grades ≥ B, but ≤ = X52; up to a max. of 1.75% for grades X52, but X70; and up to a maximum of 2.00% for 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 NACE MR 0175 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
BR	0.24	0.4		1.2		0.025		0.015		c	c	0.04	e,l	0.043	0.25
X42R	0.24	0.4		1.2		0.025		0.015		0.06	0.05	0.04	e,l	0.043	0.25
BN	0.24	0.4		1.2		0.025		0.015		c	c	0.04	e,l	0.043	0.25
X42N	0.24	0.4		1.2		0.025		0.015		0.06	0.05	0.04	e,l	0.043	0.25
X46N	0.24	0.4		1.4		0.025		0.015		0.07	0.05	0.04	d,e,l	0.043	0.25
X52N	0.24	0.4		1.4		0.025		0.015		0.1	0.05	0.04	d,e,l	0.043	0.25
X56N	0.24	0.4		1.4		0.025		0.015		0.10f	0.05	0.04	d,e,l	0.043	0.25
X60N	0.24f	0.4f		1.40f		0.025		0.015		0.10f	0.05f	0.04f	g,h,l	As agree
BQ	0.18	0.4		1.4		0.025		0.015		0.05	0.05	0.04	e,l	0.043	0.25
X42Q	0.18	0.4		1.4		0.025		0.015		0.05	0.05	0.04	e,l	0.043	0.25
X46Q	0.18	0.4		1.4		0.025		0.015		0.05	0.05	0.04	e,l	0.043	0.25
X52Q	0.18	0.4		1.5		0.025		0.015		0.05	0.05	0.04	e,l	0.043	0.25
X56Q	0.18	0.4f		1.5		0.025		0.015		0.07	0.05	0.04	e,l	0.043	0.25
X60Q	0.18f	0.4f		1.70f		0.025		0.015		g	g	g	h,l	0.043	0.25
X65Q	0.18f	0.4f		1.70f		0.025		0.015		g	g	g	h,l	0.043	0.25
X70Q	0.18f	0.4f		1.80f		0.025		0.015		g	g	g	h,l	0.043	0.25
X80Q	0.18f	0.4f		1.9f		0.025		0.015		g	g	g	i,j	As agree
X9Q	0.16f	0.4f		1.9		0.02		0.01		g	g	g	j,k	As agree
X100Q	0.16f	0.4f		1.9		0.02		0.01		g	g	g	j,k	As agree
Welded Pipe
BM		0.22	0.4		1.2		0.025		0.015	0.05	0.05	0.04	e,l	0.043	0.25
X42M		0.22	0.4		1.3		0.025		0.015	0.05	0.05	0.04	e,l	0.043	0.25
X46M		0.22	0.4		1.3		0.025		0.015	0.05	0.05	0.04	e,l	0.043	0.25
X52M		0.22	0.4		1.4		0.025		0.015	e,l	0.043	0.25
X56M		0.22	0.4f		1.4		0.025		0.015	e,l	0.043	0.25
X60M		0.12f	0.4f		1.60f		0.025		0.015	g	g	g	h,l	0.043	0.25
X65M		0.12f	0.4f		1.60f		0.025		0.015	g	g	g	h,l	0.043	0.25
X70M		0.12f	0.4f		1.70f		0.025		0.015	g	g	g	h,l	0.043	0.25
X80M		0.12f	0.4f		1.85f		0.025		0.015	g	g	g	i,j	.043f	0.25
X9M		0.1	0.55f		2.10f		0.02		0.01	g	g	g	i,j	–	0.25
X100M		0.1	0.55f		2.10f		0.02		0.01	g	g	g	i,j	–	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 max. concentration for carbon, and increase of 0.05% above the specified max. concentration for Mn is permissible, up to a max. of 1.65% for grades ≥ B, but ≤ = X52; up to a max. of 1.75% for grades X52, but X70; and up to a maximum of 2.00% for X70. 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% .

API 5L NACE MR 0175 Pipe MECHANICAL PROPERTIES

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
A	30,500	48,600	c	48,600
B	35,500	60,200	c	60,200
X42	42,100	60,200	c	60,200
X46	46,400	63,100	c	63,100
X52	52,200	66,700	c	66,700
X56	56,600	71,100	c	71,100
X60	60,200	75,400	c	75,400
X65	65,300	77,500	c	77,500
X70	70,300	82,700	c	82,700
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
	Rt0,5 PSI Min		Rm PSI Min		R10,5IRm	(in 2in)	Rm (psi)
						Af %
	Minimum	Maximum	Minimum	Maximum	Maximum	Minimum	Minimum
BR, BN,BQ,BM	35,500	65,300	60,200	95,000	0.93	f	60,200
X42,X42R,X2Q,X42M	42,100	71,800	60,200	95,000	0.93	f	60,200
X46N,X46Q,X46M	46,400	76,100	63,100	95,000	0.93	f	63,100
X52N,X52Q,X52M	52,200	76,90	66,700	110,200	0.93	f	66,700
X56N,X56Q,X56M	56,600	79,000	71,100	110,200	0.93	f	71,100
X60N,X60Q,S60M	60,200	81,90	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	9,600	119,700	0.93	f	9,600
a. for intermediate grade, refer to the full API5L Piping Specification.
b. for grades X9 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 x9 refer to the full API5L specification.

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, X9Q, X100Q
	Thermomechanical rolled or thermomechanical formed	BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M
	Thermomechanical rolled	X9M, X100M, X120M
	The suffice (R, N, Q or M) for PSL2 grades, belongs to the Stainless Steel grade

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 no opening of the weld shall occur.

Flattening test

Acceptance criteria for flattening test shall be:

EW Pipes D< 12.750 in:
X60 with T 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 API 5L specification.

CVN impact test for PSL2

Many PSL2 pipe sizes and grades require CVN. Steel Seamless Pipe is to be tested in the body. Welded pipe is to be tested in the body, pipe weld and heat-affected zone. Refer to the full API 5L specification for the chart of sizes and grades and required absorbed energy values.

Tolerances: Outside diameter, out of roundness and wall Thickness

Specified Outside Diameter D (in)	Diameter Tolerance, inches				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
	+/- 0.007		– 0.016 to + 0.063
					By agreement for	By agreement for

6.625 to 24.000	+/- 0.0075	+/- 0.0075D, but max of 0.125	+/- 0.005D, but max of 0.063		0.020	0.015
24 to 56	+/- 0.01	+/- 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

					By agreement	By agreement
					for	for

56	As agree
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 agree
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.

Tolerances: Outside diameter, out of roundness and wall thickness

Specified Outside Diameter D (in)	Diameter Tolerance, inches				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
	+/- 0.0075		– 0.016 to + 0.063
					By agreement for	By agreement for

6.625 to 24.000	+/- 0.0075	+/- 0.0075D, but max of 0.125	+/- 0.005D, but max of 0.063		0.020	0.015
24 to 56	+/- 0.01	+/- 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

					By agreement	By agreement
					for	for

56	As agree
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 agree
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,
≤ 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

API 5L NACE MR 0175 Line Pipe Comparative Specifications

The information here is summarized from ASTM Standards and API or API 5CTSpecification 5L. Please see the specific standards for more information.

Grade Range	A25 Through X70	Gr B Through X80	Table 1
Size Range	0.405 Through 80	4-2/1 Through 80	Table 1
Type Of Pipe Ends	Plain-End, Threaded-end, Bevelled-End, Special Coupling Pipe	Plain-En	Table 1
Seam Welding	All Methods Continous Welding Limited to Grade A25	All Methods Except Continous And Laser Welding	Table 1
Electric Welds: Welder Frequency	No Minimum	100 Khz Minimum	5.1.3.3.2
Heat Treatments of Electric Welds	Required For Grades > X42	Required For All Grades (Gr B Through X80)	5.1.3.3.1; J.3.3.2:6.2.7
Chemistry: Max C For Seamless Pipe	0.28% For Grades > Gr B	0.24%	tables 2a, 2b
Chemistry: Max C For Welded Pipe	0.26% For Grades > Gr B	0.22%	tables 2a, 2b
Chemistry: Max P	0.03%	0.03%	Tables 2a, 2b
Chemistry: Max S	Only When Purchases Specifies Sr18	0.02%	Tables 2a, 2b
Carbon Equivalent	None	Maximum Required for Each Grade	4.2:4.3:6.1.3: Sr15.1
Yield Strength, Maximum	None	Maximum for Each Grade	tables 3a, 3b
UTS, Maximum	None Require	Maximum For Each Grade	Tables 3a, 3b
Fracture Toughness	Only When Purchaser Specifies Sr4	Required For All Grades	6.2.6; 9.3.5: 9.8.4; 9.10.7;
Non-destructive Inspection of Seamless Pipes	Permitte	sr4 Mandatory	table 14 9.7.2.6
Repair By Welding of Pipe Body, Plate And Skelp	Permitted By Agreement	Prohibite	5.3.2;9.7.6: B.1;b.2
Certification	Certificates When Specified Per Sr15	Prohibite	4.3;9.7.4.4;9.7.6;b.1.2;b.4
Traceability	Traceable Only Until All Tests are Passed Unless Sr15 Is Specifie	Certificates (Sr15.1) Mandatory Traceable After Completion of Tests (Sr15.2) Mandatory	12.1 5.6

Permissible Variations for Seamless and Welded API 5L NACE MR 0175 Steel Pipe

	Grade A, B, A25	X42 through X80
NPS 2-1/2 and smaller --Seamless and Welded, %	+20 -- 12.5	+15 -- 12.5
NPS 3 --Seamless and Welded, %	+18 -- 12.5	+15 -- 12.5
NPS 4 through 18 --Seamless and Welded, %	+15 -- 12.5	+15 -- 12.5
NPS 20 and larger -- Welded, %	+17.5 -- 10.0	+19.5 -- 8.0
NPS 20 and larger -- Seamless, %	+15.0 -- 12.5	+17.5 -- 10.0

Typical process of manufacturing API 5L NACE MR 0175 Pipes

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

Marking Requirements

Paint-stenciled or die-stamped manufacturer’s name or mark, Spec 5L, size, weight per foot, grade, process of manufacture, type of steel, length (NPS 4 and larger only). Test pressure when higher than tabulated (NPS 2 and larger only).

Supplemental Annexes for API 5L NACE MR 0175Seamless and Welded steel Pipe

API Specification 5L contains 15 Supplemental Annexes that address special conditions and/or additional requirements.

Source: Savoy Piping Inc.

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API 5L NACE MR 0175 Line Pipes OF TOP APPROVED COMPANIES

Sabic Saudi Arabia)	Shell	ALBA (Saudi Arabia)	QAFCO(Qatar)	Maaden(Saudi Arabia)	KNPC(Kuwait)
Kuwait Oil Company(Kuwait)	Qatar Petroleum(Qatar)	Petroleum Development Oman(Oman)	ADNOC(United Arab Emirates)	Orpic(Oman)	Takreer(Abu Dhabi)
YASREF(Abu Dhabi)	Petrobras(Brazil)	Petronas(Malaysia)	NIOC(Iran)	NPDC(Nigeria)	Egyptian General petroleum Corporation(Egypt)

Frequently asked questions — API 5L NACE / Sour Service Pipe

Is PSL2 the same as sour?

No. Sour service needs explicit H₂S chemistry and HIC/SSC testing on the PO.

Which grades?

Grade B through X65 sour packages when mill route and annexes allow.

HIC vs SSC?

HIC is hydrogen-induced cracking (TM0284); SSC is sulfide stress cracking (TM0177).

Related pages?

See per-grade sour / HIC / SSC supplier pages for Grade B and X grades.

Supplying API 5L NACE MR 0175 Pipes to Countries

We Export API 5L NACE MR 0175 Pipe to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Savoy Piping Inc. is a well known worldwide exporter of API 5L NACE MR 0175 Pipe is committed to provide each and every customer with the highest standard of customer service. We deal in API 5L NACE MR 0175 Pipe in India and Overseas, offering a wide range of API 5L NACE MR 0175 Line Pipes

API 5L NACE MR 0175 Pipes

Hot Rolled Carbon Steel Pipes as per American Petroleum Institute specification API 5L cover Seamless and Welded Line Pipes