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API 5L X56 Pipes

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API 5L X56 Pipes Specification

Connection Type
Welded, Seamless, Threaded

Temperature Range
-45C to 120C

Tolerance
0.75% on OD, 12.5% on wall thickness

Diameter
As per specification, typically 1/2 to 32

Thread Type
API threading (if threaded specified)

Tensile Strength
570 MPa

Bend Radius
Not less than 5x the pipe outer diameter

Flexibility
Standard steel pipe flexibility

Coating Type
3LPE, FBE, Black Paint, or as specified

Yield Strength
390 MPa

Sealing Type
Metal-to-metal seal or gasket-sealed

Product Type
Carbon Steel Line Pipe

Material
Carbon Steel

Connection
Beveled Ends / Plain Ends / Threaded

Shape
Round

Standard
API 5L

Surface Treatment
Black Painted, Anti-corrosion Coated

Outer Diameter
21.3 mm to 812.8 mm

Section Shape
Circular

Length
6 m, 12 m, or as required (up to 18 m)

Thickness
3 mm to 30 mm

Color
Black

Usage
Oil and Gas Transmission, Water Supply, Structural, Fluid Transportation

Rated Pressure
As per design, up to 20 MPa

Material Grade
X56 (Grade 415)

Application
Pipeline for oil, gas, natural gas, water

About API 5L X56 Pipes

What Are Specification API 5L X56 Pipes?

Product Specification Level (PSL)	API 5L X56 PSL 2 API 5L X56 PSL 1
X46 Grade PSL2 Pipe Standard	API 5L X56 (Specification for API 5L Grade X46 PSL1 Line Pipe - ANSI/API specification 5L - 44th Edition, October 1, 2007)
5L X46 Steel Pipe Sizes	Nominal API 5L Grade X46 PSL1 Pipe Size 1/2" to 48 " O.D. API 5L X56 Pipes Wall Thickness - Schedule 10 through 160, STD, XS, XXS.
X46 Carbon Steel Pipe Origin	Indian Origin, Japanese Origin, Korean Origin, European Origin, US Origin, Ukraine Origin, Russian Origin
Grade X46 Pipe Thickness	SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XS, SCH XXS, All API 5L X56 Pipes Wall Thickness available in stock
X46 PSL1 Pipe Type	Seamless / ERW / Welded / Fabricated / CDW
X46 PSL2 Pipe End	Plain, Bevel, Screwed, Threaded
L320 X46 Pipe Length	Single Random, Double Random & Required Length, Custom Size - 12 Meter lengths
Testing and Inspection Reports	EN 10204 3.1, Mill TC EN 10204 3.1, Visual Inspection Reports, Third Party Inspection Reports, Destructive Test Report, PMI Test Reports, Non Destructive Test Reports, NABL Approved Lab, Chemical and Mechanical Reports, India Boiler Regulations (IBR) Test Certificate
X46 Grade PSL1 Pipe Packing	API 5L X56 Gr B Pipe Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
API 5L Gr X46 Pipe Finishes	Bare, Oiled, Mill Varnish, Galv, FBE, FBE Dual, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap HIC Tested X46 Pipe API 5L X56 PSL1 Pipe End Finishes: Beveled, Square Cut, Threaded & Coupled.
Steel X46 Pipe Application & uses	Grade X46 PSL2 Pipe Suitable for Conveying gas, water, oil, and other liquefied media in Oil Refineries, Petrochemicals, Steel, Sugar, Boiler Equipments, Pressure Vessels, Power Generation (Nuclear/Thermal) and General Engineering Purposes
Other manufacturers of API 5L Gr X46 Seamless steel pipe	MSL, JSL, ISMT, USL, BAO, Lontrin, SMTM, TNRS, V&M and Wuxi
BS EN 10208-2:2009	X46 Grade PSL1 pipelines for combustible fluids. Suitable to use in maximum operating pressure over 16 bar.
Value added service for API 5L Grade X46 PSL2 Pipe	3LPE coated L320 X46 Pipe Fusion Bond Epoxy ARO Tar Epoxy Heat Treatment Bending Galvanizing Annealed Sand Blasting Machining Draw & Expansion as per required Size & Length etc.

Equivalent material Of API 5L X56 Pipes?

ASTM API 5L	Specification for line pipe
Material Grade	PSL1	L390 or x56
Material Grade	PSL2	L390N or X56N L390Q or X56Q L390M or X56M

Chemical Composition Of API 5L X56 Pipes?

X56 PSL1				X56 PSL2
Grade	C (Max.)	Mn (Max.)	P (Max.)	S (Max.)	C (Max.)	Mn (Max.)	P (Max.)	S (Max.)
X56	0.26	1.40	0.03	0.03	0.22	1.40	0.025	0.015

Mechanical Properties Of API 5L X56 Pipes?

Pipe Grade	Tensile Properties - X56 Pipe Body of SMLS and Welded Pipes PSL 1			Seam of X56 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
X56	56,600	71,100	c	71,100

Versatile Application Range

API 5L X56 pipes are designed for diverse uses, including oil and gas pipelines, water transportation, and structural applications. Their superior strength and handling of rated pressures up to 20 MPa make them ideal for both onshore and offshore pipelines, ensuring reliable delivery of fluids and gases over long distances in tough environments.

Comprehensive Testing and Quality Assurance

Each pipe undergoes stringent ultrasonic, hydrostatic, and non-destructive testing (NDT) in compliance with API standards. These measures, along with impact testing as per client or API requirements, guarantee the structural integrity and performance of every pipe delivered. Stencil marking and standard sea-worthy packing further ensure traceability and safe logistics.

Customizable Dimensions and Coating Options

API 5L X56 pipes come in multiple sizes (1/2" to 32" NPS, and lengths up to 18 m), end finishes (square-cut, beveled, or plain), and coating options like 3LPE, FBE, or black paint. This versatility allows customization for specific project needs, enhancing corrosion resistance and extending pipeline longevity in challenging environmental conditions.

FAQs of API 5L X56 Pipes:

Q: What are the manufacturing processes for API 5L X56 pipes?

A: API 5L X56 pipes are produced using seamless, Electric Resistance Welded (ERW), and Submerged Arc Welded (LSAW and SSAW) techniques. The choice of process depends on application requirements, with each method ensuring compliance with the strict API 5L standards.

Q: How are quality and safety ensured during the production of these pipes?

A: Every pipe undergoes ultrasonic testing, hydrostatic testing, and non-destructive testing (NDT) as per API standards. Additionally, impact tests are performed according to client or API requirements to guarantee robustness and reliability in service.

Q: Where can these pipes be used, and what types of pipelines are suitable?

A: API 5L X56 pipes are suited for both onshore and offshore pipeline applications, including oil, gas, and water transmission systems, as well as structural and fluid transportation projects due to their durability and high pressure tolerance.

Q: What end finishes and connections are available for API 5L X56 pipes?

A: They are offered with square-cut, beveled, or plain ends. Connection types include welded, seamless, or threaded (with API threading), addressing diverse installation and operational needs in pipeline networks.

Q: When is a specific coating or surface treatment recommended?

A: Choice of coating (such as 3LPE, FBE, or black paint) is based on the operating environment and corrosion protection needs. Surface treatments like black painting or anti-corrosion coatings enhance pipe longevity, especially in harsh or marine settings.

Q: What are the dimensional tolerances and weight specifications of these pipes?

A: Dimensional tolerances are maintained at 0.75% on outer diameter and 12.5% on wall thickness, as per API 5L standards. Pipe weights conform to the standard API 5L weight chart, ensuring consistency for project planning and installation.

Q: How does using API 5L X56 pipes benefit my pipeline project?

A: These pipes provide excellent mechanical strength (yield 390 MPa, tensile 570 MPa), flexibility, and robust sealing. Their stringent testing, customizable specifications, and reliable performance result in reduced maintenance and increased safety across varied pipeline applications.

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