API 5L X42 Pipe | Grade L290 PSL2 Seamless Steel Pipe

Q: What is the maximum OD available in X42?

Seamless and ERW pipe go up to 24 inch OD, while LSAW/DSAW/SSAW welded X42 pipe is available up to 48 inch OD.

Why Choose Us As a Premium API 5L X42 Pipe Suppliers in India?

Same Day Quotation

X42 size/grade quote within 24 hours

Finest Materials

Mill-sourced L290 grade steel

Ready Stock

X42 PSL1/PSL2 held at Mumbai warehouse

Why
Choose
Us

Global Delivery

UAE, South Africa, Malaysia & 28+ nations

NACE / HIC Ready

Sour-service X42 chemistry on request

Expert Team

Guidance on PSL level & schedule selection

API 5L X42 Pipe Facet

Supply Range1/2″ to 48″

Spec LevelPSL1, PSL2, Sour Service (NACE)

Dimensional StandardASME B36.10

SurfaceBlack Painted, Varnished, FBE, 3LPE

Wall Thk. Tolerance± 12.5%

Manufacturing TypeSeamless, ERW, LSAW, DSAW, SSAW

TestingUltrasonic, Radiographic, Hydrotest

Material StandardAPI Spec 5L, ISO 3183

Table of Content

API 5L X42 Pipe Specification Wall Thickness of API 5L X42 QS SAW Pipe API 5L X42 PSL1 vs PSL2 Pipe Benefits of API 5L X42 Pipe Tolerance Chart of API 5L X42 Welded Pipe Heat Treatment Process of Grade X42 PSL2 Spiral Pipe API 5L X42 PSL1 Pipe Welding Defects Common Types of API 5L X42 Pipe L290 PSL2 Seamless Steel Pipe Testing Methods Size Chart of API 5L X42 PSL 2 ERW Pipe End Types of API 5L Grade X42 High Yield Pipe API 5L X42 Grade B LSAW Pipe Surface Roughness SCH 40 X42 Carbon Steel Pipe Coating Types Mechanical Properties of API 5L X42 Line Pipe X42 Grade PSL2 Pipeline Chemical Composition API 5L Grade X42 PSL2 Epoxy Coated Pipe Equivalent Pressure Rating of X42 Steel Nace Pipe L290 PSL2 Seamless Steel Pipe Manufacturing Process Industrial Applications of API 5L X42 MS HSAW Pipe Markings of X42 Pipe Documentation of API 5L Gr X42 HIC Pipeline API 5L X42 Gr B DSAW Pipe Welding Methods Brands of API 5L Grade X42 PSL1 Sour Service Pipe

Grade L290 PSL2 Seamless Steel Pipe Supplier in India

Rexal Tubes supplies API 5L X42 Pipe with decades of industry experience since 1985. We provide L290 Steel Pipe solutions for oil and gas, power, and infrastructure industries worldwide. Our API 5L Grade X42 Pipe is available in PSL1 and PSL2 specifications. We supply API 5L X42 Pipe in seamless, ERW, HSAW, LSAW, DSAW, SSAW, and welded configurations. Our X42 Pipe is available in different sizes, schedules, and end finishes. We offer SCH 40 X42 Carbon Steel Pipe, SCH 80 X42 Pipe, and SCH 160 X42 Pipe for various applications. We supply API 5L X42 PSL2 ERW Pipe for industrial project requirements.

API 5L X42 Pipe, also called L290 Pipeline, is used for sour service, offshore, and industrial applications. Rexal Tubes supplies API 5L Grade X42 PSL2 Epoxy Coated Pipe with 3LPE, FBE, and varnished coatings. Our API 5L X42 NACE Pipe provides reliable performance in challenging environments. We offer HIC-resistant pipeline solutions and High Yield X42 Pipes for critical operations. Rexal Tubes exports API 5L X42 Pipe and L290 Steel Pipe to UAE, Saudi Arabia, Europe, Africa, and global markets. We deliver quality API 5L X42 Pipe solutions with reliable service and timely delivery.

API 5L X42 Pipe Specification

Supply Range

Overall: 1/2″ – 48″
Seamless: 1/2″ – 40″
ERW/HFW: 1/2″ – 24″
SSAW/HSAW: up to 100″
Nominal Bore Size: 3/8″ – 30″

Wall Thickness / Schedule

SCH 10, 20, 40, 60, 80, 120, 160, XXS
3mm – 60mm
Custom / non-standard WT on request

PSL Level

PSL1 – General service
PSL2 – Sour Service
100% NDT for PSL2

Yield / Tensile

Yield: 290 MPa / 42,100 psi (min)
Tensile: 415 MPa / 60,200 psi (min)
Hardness: < 250 HB
Grade also called L290

Chemical Composition

Seamless C: 0.28 · Welded C: 0.26
Mn: 1.3 · P: 0.03 · S: 0.03
Nb, V, Ti: per agreement

Testing

Hydrostatic, Flattening & Bend Test
Tensile, & Hardness Test
Ultrasonic, Radiographic & DWT Test

Manufacturing Process

Seamless, ERW, LSAW, DSAW
Cold Drawn & Hot Finished

Surface / Coating

Natural, Black Painting, Varnished
3PE / 3LPE / FBE Coating
Zinc, Cement Lining, Cladding

Certificates & Documents

MTC EN 10204 3.1 / 3.2
Third-Party Inspection Report
NACE MR0175 / ISO 15156
Certificate of Origin, QAP

Packaging

Crates & Wooden Boxes
Bundled / Wrapped in Plastic
Custom Export Packing

Dimensional Standard

ASME B36.10 / B36.10M
Out-of-Roundness

Protection Caps

Iron End Caps
Plastic End Caps

Material Standard / Equivalent

API Spec 5L, ISO 3183 Compliant
PSL1: L290, X42
PSL2: L290Q, L290N, L290M, L290R

Heat Treatment (PSL2)

Normalized & Tempered (HN)
Subcritical Stress Relieved (HS)
Subcritical Age Hardened (HA)
Quench & Tempered (HQ)

Value Added Service

Bead Rolling
Threading
Coupling

Get Ready Stock of 5L X42 ERW and DSAW Pipe At Best Price in Mumbai, Check Wall Thickness

Wall Thickness of API 5L X42 QS SAW Pipe

NPS in inch	1/8	2	18	3	42	4	3/8	6	1 1/4	10	14	22	3/4	32
OD in inch	.405	2.375	18	3.5	42	4.5	.675	6.625	1.66	1 .75	14	22	1.05	32
10	-	-	.25	-	-	-	-	-	-	-	.25	.25	-	.312
30	-	-	.438	-	.625	-	-	-	-	.307	.375	.5	-	.625
120	-	-	1.375	-	-	.438	-	.562	-	.844	1.094	1.625	-	-
40	.068	.154	.562	.216	.75	.237	.091	.28	.14	.365	.438		.113	.688
160	-	.344	1.781	.438	-	.531	-	.719	.25	1.125	1.406	2.125	.219	-
80	.095	.218	.938	.3	-	.337	.126	.432	.191	.594	.75	1.125	.154	-

API 5L X42 PSL1 vs PSL2 Pipe

X42 PSL1

Yield Strength: 290 MPa min
Tensile Strength: 415 MPa min
NDT optional on request
Suited for general onshore gathering lines
Basic MTC certification
Economical & faster delivery

X42 PSL2

Yield Strength: 290 – 495 MPa
Tensile Strength: 415 – 760 MPa
100% mandatory NDT (UT/RT)
Sour service option (NACE MR0175)
Full MTC EN 10204 3.1 / 3.2
For critical & high-pressure pipelines

Benefits of API 5L X42 Pipe

Check API 5L X42 Pipe Manufacturer in India offering numerous benefits for reliable performance.

High Strength

Excellent Corrosion Resistance

Versatile

Cost Effective

Durability

Tolerance Chart of API 5L X42 Welded Pipe

OD (in)	Tolerance (in.)
	Except End A		End A, B, C
	X42 Seamless Pipe	X42 Welded Pipe	X42 Seamless Pipe	X42 Welded Pipe
≥2.375 - 6.625	-		-
	+/- 0.0075D		- 0.016 - + 0.063
	-		-
	-		-
< 2.375	-0.031 - + 0.016		- 0.031 - + 0.016
>6.625 - 24	+/- 0.0075D	+/- 0.0075D	+/- 0.005D
>24 - 56	+/- 0.01D	+/- 0.005D	+/- 0.079	+/- 0.063

Heat Treatment Process of Grade X42 PSL2 Spiral Pipe

STEP 01

Annealed

STEP 02

Normalised

STEP 03

Quenched

STEP 04

Tempered

API 5L X42 PSL1 Pipe Welding Defects

01 Undercuts Groove melted into the base metal at the weld toe, reducing wall thickness locally.

02 Arc Burns Surface damage caused by an accidental arc strike outside the weld joint.

03 Hard Spots Localized zones of increased hardness from rapid, uneven cooling.

04 Geometric Deviations Out-of-roundness or wall-thickness variation beyond tolerance limits.

05 Cracks Linear discontinuities from stress, hydrogen embrittlement or poor fusion.

06 Laminations Internal separations parallel to the surface from rolled-in inclusions.

Common Types of API 5L X42 Pipe

L290 PSL2 Seamless Steel Pipe Testing Methods

1Hydrostatic Test

2Ultrasonic (UT)

3Radiographic (RT)

4Charpy Impact Test

5Tensile & Yield Test

6Visual Inspection

API 5L X42 PSL 2 ERW Pipe Stockist in India, Offering a Wide Range of Sizes From 1/8 to 2 inch

Size Chart of API 5L X42 PSL 2 ERW Pipe

Get API 5L X42 Pipe Supplier in India providing accurate sizes with prompt delivery.

Size	DN	OD (in.)
4"	100	4.5
10"	250	10.75
6"	150	6.625
1"	25	1.315
2.1/2"	65	2.875
5"	125	5.563
3"	80	3.5
1.1/2"	40	1.9
2"	50	2.375
3/4"	20	1.05
8"	200	8.625
12"	300	12.75

End Types of API 5L Grade X42 High Yield Pipe

BE Beveled Ends

PE Plain Ends

TE Threaded Ends

API 5L X42 Grade B LSAW Pipe Surface Roughness

Condition	Roughness (in.)	Roughness (mm)
Bitumed Coated	00.002	00.05
Heavy Scaling	00.06 - 0.16	1.5 - 4
Galvanized	00.006	00.15
Lightly Corroded	00.004 - 0.016	00.1 - 0.4
Cleaned	00.006 - 0.008	00.15 - 0.2
Light Scaling	00.04 - 0.06	1 - 1.5
Welded	00.002 - 0.004	00.05 - 0.1
Severely Corroded	00.016 - 0.12	00.4 - 3
Drawn	00.0008 - 0.004	00.02 - 0.1

Stockist of FBE Coated API 5L X42 Welded Pipe Designed with Excellent Mechanical Properties

SCH 40 X42 Carbon Steel Pipe Coating Types

FBE Coating

3LPE Coating

Anti-Rust Oil

Varnish Coating

Bare / Natural

FBE CoatingFusion bond epoxy, anti-corrosion

3LPE CoatingThree-layer polyethylene wrap

Anti-Rust OilStandard transit protection coat

Varnish CoatingLight-duty surface finish

Bare / NaturalNo coating, mill-finish pipe

Mechanical Properties of API 5L X42 Line Pipe

PSL Level	Grade	Yield Strength (MPa)	Tensile Strength (MPa)
PSL1	X42 / L290R	290 min	415 min
PSL2	X42 / L290 [R,N,Q,M]	290 – 495	415 – 760

X42 Grade PSL2 Pipeline Chemical Composition

Grade	PSL1 (Max %)				PSL2 (Max %)
Grade	C	Mn	P	S	C	Mn	P	S
X42 / L290	0.26	1.30	0.03	0.03	0.22	1.40	0.025	0.015

API 5L Grade X42 PSL2 Epoxy Coated Pipe Equivalent Grades

API 5L X42 / L290

GOST 10G2 / 20295 Cat.2

EN 10208-2 L290NB

DIN 17175 St 45.8

ISO 3183 L290

ASTM A106 Gr B / A53 Gr B

Pressure Rating of X42 Steel Nace Pipe

Size (mm)	WT (mm)	Temperature (°C)
		-29 - 38	205	260	350	370	400	4301	450
		Allowed Stress (MPa)
		137.8	137.8	130.2	117.1	115.7	89.6	74.4	59.9
50	3.91	16378	16378	15468	13925	13759	10645	8847	7124
100	6.02	13187	13187	12464	11210	11079	8571	7124	5739
65	5.16	17914	17914	16929	15227	15048	11644	9674	7793
20	2.87	28070	28070	26526	23860	23578	18245	15158	12209
32	3.56	21614	21614	20421	18369	18155	14049	11672	9404
40	3.68	19444	19444	18375	16529	16329	12636	10550	8454
25	3.38	26251	26251	24804	22310	22048	17060	14173	11417
80	5.49	15558	15558	14969	13222	13063	10108	8399	6766
15	2.77	34416	34416	32528	29255	28910	22372	18589	14972

L290 PSL2 Seamless Steel Pipe Manufacturing Process

Seamless (Hot Pierced)

1Round Billet Heating

2Piercing

3Elongation & Sizing

4Straightening

5NDT & Hydrotest

6Marking & Warehousing

ERW / HFW Forming

1Coil Uncoiling

2Roll Forming

3High-Frequency Welding

4Bead Trimming & Sizing

5NDT & Hydrotest

6Marking & Warehousing

Looking for API 5L X42 Welded Pipe?

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Find X42 Pipe and API 5L X42 PSL1 Pipe in Hot-Dipped Galvanizing For Oil & Gas Transportation

Industrial Applications of API 5L X42 MS HSAW Pipe

Find API 5L X42 Pipe Supplier in India offering diverse applications for industrial needs.

Gathering & Flow Lines

Water Transmission

Low-Pressure Gas Lines

Sour Service Lines

Refinery Piping

Structural Piling

Cross-Country Pipelines

Marine & Offshore Lines

Markings of X42 Pipe

01Carbon Steel API 5L Grade X42

02Manufacturer’s name

03Monogram marking

04PSL1 / PSL2 designation

05Manufacturing process (SMLS/ERW/SAW)

06Heat / batch number

07Size & wall thickness

08Hydrostatic test pressure

09End finish type

10Supplementary requirements (if any)

Documentation of API 5L Gr X42 HIC Pipeline

Mill Test Certificate EN 10204 Type 3.1 / 3.2 heat-wise results PDF

NACE MR0175 Report Sour-service compliance for H2S lines On Request

Third-Party Inspection SGS, Bureau Veritas or TUV witnessed On Request

Certificate of Origin Chamber-attested manufacturing origin PDF

Storage & Handling Guidelines

Off-Ground StorageUse timber sleepers to keep pipe off wet ground

Grade-wise SegregationStore each heat/grade separately to avoid mix-up

Cap ProtectionKeep end caps on until installation

Covered StorageShelter from direct rain to protect coating

API 5L X42 Gr B DSAW Pipe Welding Methods

ERWElectric Resistance Welding for smaller OD X42 pipe

HFWHigh Frequency Welding, fast seam weld

LSAW / DSAWLarge diameter, thick-wall X42 line pipe

SMLSSeamless, no weld seam, hot pierced

Brands of API 5L Grade X42 PSL1 Sour Service Pipe

JFE Steel

Maharashtra Seamless

Tenaris

Jindal Steel & Power

Nippon Steel

Mannesmann Line Pipe

ISMT Limited

JFE Steel

Maharashtra Seamless

Tenaris

Jindal Steel & Power

Nippon Steel

Mannesmann Line Pipe

ISMT Limited

X42 Pipe Export Destinations

UAE

Saudi Arabia

Qatar

Oman

Kuwait

Bahrain

South Africa

Nigeria

Kenya

Malaysia

Singapore

Indonesia

Vietnam

Bangladesh

Sri Lanka

Australia

API 5L X42 Pipe Quick Facts

01Is API 5L X42 the same as L290?

Yes, X42 in API 5L corresponds to L290 under the ISO 3183 designation system, referring to the same 290 MPa minimum yield strength grade.

02Can X42 pipe be used for sour service?

Yes, with controlled chemistry and HIC testing, X42 PSL2 pipe can meet NACE MR0175 / ISO 15156 sour-service requirements.

03What is the maximum OD available in X42?

Seamless & ERW pipe go up to 24″ OD, while LSAW/DSAW/SSAW welded X42 pipe is available up to 48″ OD.

04Does X42 pipe need heat treatment?

Standard X42 PSL1/PSL2 is supplied as-rolled or normalized; heat treatment is applied only when specified for special service conditions.

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