Wholesale API 5L Grade B Seamless Steel Pipe SCH 80 for Oil & Gas Pipelines Manufacturer and Supplier

API 5L Grade B Seamless Steel Pipe SCH 80 for Oil & Gas Pipelines

Short Description:

API 5L Grade B Seamless Steel Pipe SCH 80 is a high-strength carbon steel pipe designed for demanding pipeline applications, including oil, natural gas, water transmission, and industrial fluid transportation. Manufactured according to API 5L standards, this seamless pipe offers excellent pressure resistance, durability, and reliable performance in harsh operating environments.

Standard: ASTM

Grade: Grade B X42 X46 X52 X60 X65 X70 X80

Surface: Black, FBE, 3PE (3LPE), 3PP

Product Levels: PSL 1, PSL 2

Applications: oil, gas, and water transportation

Certification:: API 5L (45th) + ISO 9001 Certification | Spanish-language MTC Report + Certificate of Origin Form B

Delivery time: 20-25 working days

Payment Term: T/T,Western Union

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Product Detail

Product Tags

Product Introduction

API 5L Steel Pipe Product Detail
Grades	API 5L Grade B, X42, X52, X56, X60, X65, X70, X80
Specification Level	PSL1, PSL2
Outer Diameter Range	1/2” to 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16 inches, 18 inches, 20 inches, 24 inches up to 40 inches.
Thickness Schedule	SCH 10. SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, to SCH 160
Manufacturing Types	Seamless, Welded ERW, SAW in LSAW, DSAW, SSAW, HSAW
Ends Type	Beveled ends, Plain ends
Length Range	SRL , DRL , 20 FT (6 meters), 40FT (12 meters) or, customized
Protection Caps	plastic or iron
Surface Treatment	Natural, Varnished, Black Painting, FBE, 3PE (3LPE), 3PP, CWC (Concrete Weight Coated) CRA Clad or Lined

Surface Finish

Black Painting

FBE

3PE (3LPE)

3PP

API 5L Grade B Steel Pipe Size Chart

Outside Diameter (OD)	Wall Thickness (WT)	Nominal Pipe Size (NPS)	Length	Steel Grade Available	Type
21.3 mm (0.84 in)	2.77 – 3.73 mm	½″	5.8 m / 6 m / 12 m	Grade B – X56	Seamless / ERW
33.4 mm (1.315 in)	2.77 – 4.55 mm	1″	5.8 m / 6 m / 12 m	Grade B – X56	Seamless / ERW
60.3 mm (2.375 in)	3.91 – 7.11 mm	2″	5.8 m / 6 m / 12 m	Grade B – X60	Seamless / ERW
88.9 mm (3.5 in)	4.78 – 9.27 mm	3″	5.8 m / 6 m / 12 m	Grade B – X60	Seamless / ERW
114.3 mm (4.5 in)	5.21 – 11.13 mm	4″	6 m / 12 m / 18 m	Grade B – X65	Seamless / ERW / SAW
168.3 mm (6.625 in)	5.56 – 14.27 mm	6″	6 m / 12 m / 18 m	Grade B – X70	Seamless / ERW / SAW
219.1 mm (8.625 in)	6.35 – 15.09 mm	8″	6 m / 12 m / 18 m	X42 – X70	ERW / SAW
273.1 mm (10.75 in)	6.35 – 19.05 mm	10″	6 m / 12 m / 18 m	X42 – X70	SAW
323.9 mm (12.75 in)	6.35 – 19.05 mm	12″	6 m / 12 m / 18 m	X52 – X80	SAW
406.4 mm (16 in)	7.92 – 22.23 mm	16″	6 m / 12 m / 18 m	X56 – X80	SAW
508.0 mm (20 in)	7.92 – 25.4 mm	20″	6 m / 12 m / 18 m	X60 – X80	SAW
610.0 mm (24 in)	9.53 – 25.4 mm	24″	6 m / 12 m / 18 m	X60 – X80	SAW

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Product Level

PSL 1 (Product Specification Level 1) : For pipelines built to a basic standard quality level.
PSL 2 (Product Specification Level 2) : Using higher mechanical properties, tighter chemical controls and NDT, more aggressive specification.

Item	PSL1	PSL2	Notes
Chemical Composition Control	Standard limits on C, Mn, P, S	Stricter limits, lower P and S; additional microalloy element control allowed	PSL2 is more suitable for low-temperature and corrosive environments
Yield Strength (MPa)	According to grade specification	Same as PSL1; slightly higher for some high-grade steels	Basic mechanical requirements are similar
Tensile Strength (MPa)	According to grade specification	Same as PSL1
Elongation (%)	According to grade specification	Same as PSL1
Low-Temperature Impact (Charpy V-Notch)	Optional or per end-use requirement	Mandatory; typically tested at -20°C or -50°C	Enhances toughness at low temperature
Weldability	Meets standard requirements	Stricter, weldability tests often required	PSL2 demands higher weld performance
Dimensional Tolerance	Standard range	Stricter	PSL2 has tighter control on diameter and wall thickness
Defect Control / NDT	Standard inspection; UT/RT optional	Mandatory UT/RT/MPI	Ensures higher pipeline safety
Application Environment	General pipeline transportation	High-pressure, low-temperature, corrosive pipelines	PSL2 is preferred for projects with high safety requirements
Cost	Relatively lower	Slightly higher	Due to stricter inspection and manufacturing requirements

Performance and Applications

API 5L Grade	Minimum Yield Strength (MPa)	Typical Applications in the Americas
Grade B	≥ 245 MPa	Low-pressure natural gas pipelines in North America; small-diameter oil gathering pipelines in Central America
X42 / X46	≥ 290 / 317 MPa	Agricultural irrigation pipelines in the U.S. Midwest; urban energy distribution networks in South America
X52 (Main Grade)	≥ 359 MPa	Onshore oil & gas gathering lines in Texas shale fields; Brazil domestic pipeline networks; cross-border natural gas pipelines (e.g., Panama region)
X60 / X65	≥ 414 / 448 MPa	Canadian oil sands transportation pipelines; Gulf of Mexico medium- to high-pressure offshore pipeline systems
X70 / X80	≥ 483 / 552 MPa	Long-distance high-pressure transmission pipelines in the U.S.; deepwater offshore oil & gas projects in Brazil

Technological Process

Raw Material Inspection – Choose and inspect the good quality steel billets or coils.

Forming – Roll or pierce into pipe form (Seamless / ERW / SAW).

Welding –In-pipe joints are made by electric resistance welding or submerged arc welding.

Heat Treatment – Enhance strength and toughness by precise heating.

api 5l Sizing & Straightening royal group_

Sizing & Straightening – Modify the diameter of the tube and confirm the size is correct.

api 5l Non-Destructive Testing royal group_

Non-Destructive Testing (NDT) – Inspect for inward and surface flaws.

api 5l Hydrostatic Test Testing royal group_

Hydrostatic Test – Test each pipe for strength and leaks.

api 5l Surface Coating Testing royal group_

Surface Coating – Apply corrosion protection layer (black varnish, FBE, 3LPE, etc.).

api 5l Marking & Inspection Testing royal group_

Marking & Inspection – Mark the specifications and do the final quality inspections.

api 5l Packaging & Delivery Testing royal group_

Packaging & Delivery – Pack, stack, and deliver with Mill Test Certificates.

Royal Steel Group Advantage（Why Royal Group Stands Out for Americas Clients?）

1.Reliable API 5L Steel Pipe Supplier

With over 10 years of steel export experience, Royal Steel Group provides high-quality API 5L steel pipes for oil & gas, energy, infrastructure, and industrial projects worldwide.

2.Stable Supply & Competitive Price

Working with reliable steel mills, we ensure stable production capacity, consistent quality, and cost-effective solutions for global customers.

3.International Standards & Quality Control

Our API 5L pipes comply with API, ASTM, EN, and other international standards, with strict inspection processes and complete documents including MTC and SGS reports.

4.Customized Solutions & Global Delivery

We offer customized pipe sizes, coatings, and packaging solutions, supported by professional export services and efficient worldwide shipping.

Packaging And Delivery

Royal Steel Group provides professional packaging and reliable delivery solutions for API 5L steel pipes to ensure safe transportation worldwide.

1.Bundled with high-strength steel straps for easy loading
2.Protected with pipe caps and waterproof materials
3.Customized packaging available for different pipe sizes and coatings
4.Flexible shipping options including container and bulk vessel transportation

Complete export documents such as MTC, Packing List, Certificate of Origin, and SGS Report are available to support smooth international delivery.

FAQ

Q1: Why choose Royal Steel Group as your API 5L steel pipe supplier?

A: Royal Steel Group has over 10 years of steel export experience, providing high-quality API 5L steel pipes with competitive prices, stable supply, strict quality control, and professional global export services.

Q2: What API 5L steel pipe grades can you supply?

A: We supply common API 5L grades including Grade B, X42, X52, X60, X65, and X70, available in seamless and welded types according to project requirements.

Q3: Can you provide customized API 5L pipes?

A: Yes. We offer customized solutions including different diameters, wall thicknesses, lengths, surface coatings, and inspection requirements to meet various pipeline projects.

Q4: What quality certificates and documents can you provide?

A: Royal Group provides complete quality documents, including Mill Test Certificate (MTC), API certificates, SGS inspection reports (if required), packing lists, and certificates of origin.

Q5: How do you ensure product quality and delivery reliability?

A: We conduct strict quality inspections during production, including material testing, dimensional inspection, hydrostatic testing, and final inspection. With reliable supply chains and professional logistics support, we ensure stable delivery for global customers.