API / ASTM / EN Certified

API 5L Seamless Pipes Manufacturer & Supplier in India

Unicorn Metal Industries stands as a premier API 5L Seamless Pipes Manufacturer in India, supplying high-performance transmission lines built to strict benchmarks. Modern energy transmission networks demand these high-integrity piping systems capable of resisting extreme pressure cycles and degradation. Standard structural profiles frequently suffer from premature rupture when managing aggressive media in high-stress pipeline environments.

Serving as a dedicated API 5L Seamless Pipes Supplier in India, we ensure your procurement pipeline receives certified stock tailored to your exact blueprints. Fabricators specify certified API 5L Carbon Steel Pipe configurations to achieve an exceptional balance between high yield strength and superior long-term utility value. Partnering with a trusted supply network guarantees reliable access to high-grade material.

Our advanced facility provides premium API 5L Grade B Seamless Pipe assets built to handle complex field bending and heavy-duty structural welding. Choosing these certified high-yield profiles ensures long-term operational integrity and complete safety across demanding pipeline operations.

Request an Instant RFQ →

Round Seamless ProfileGeometry

6m / 9m / 12mAvailable Lengths

Grade B through X70Grade Range

Industrial warehouse inventory of certified high-strength API 5L seamless pipes manufactured in India

Overview

Premium API 5L Seamless Pipes for High-Pressure Grids

This specialized high-strength steel alloy system is explicitly tailored for exceptional structural resilience across oil, natural gas, and petrochemical transmission networks. Sourcing from a certified API 5L Seamless Pipes Manufacturer in India ensures you receive high-toughness components that maintain absolute structural integrity.

The engineered microstructural matrix creates an inherent resistance to longitudinal cracking and subsurface decay without needing secondary anti-rust coatings. This material advantage keeps your structural frameworks dimensionally stable and pressure-tight over decades of rugged field service under intense operational pressure.

Our production facility utilizes controlled cold drawing and hot piercing to ensure these profiles retain uniform wall thickness. Utilizing an accurate API 5L Pipe Wall Thickness Chart allows design engineers to optimize flow dynamics while significantly lowering total assembly deadweight.

Datasheet

Technical Data Sheet & Product Specifications of API 5L Pipes

Our comprehensive API 5L line pipe manufacturing catalog accommodates global engineering criteria, providing custom thickness boundaries and precise structural dimensions tailored to your design blueprints.

Core Technical Product Details

SHEET 01

Property	Technical Specification Details
Steel Grade	API 5L (Grade B through X70)
Fulfillment Lengths	Available in 6m, 9m, 12m, and custom single/double random lengths
Geometry Configuration	Round Seamless Profile

Chemical Composition

SHEET 02

Element	Maximum / Range Percentage (PSL 2 Grades)
Carbon (C)	0.22% Maximum
Silicon (Si)	0.45% Maximum
Manganese (Mn)	1.20% – 1.45% Maximum
Phosphorus (P)	0.025% Maximum
Sulfur (S)	0.015% Maximum

Mechanical Properties

SHEET 03

Grade Profile	Yield Strength Minimum (MPa)	Tensile Strength Minimum (MPa)
API 5L Grade B	245 MPa	415 MPa
API 5L X42	290 MPa	415 MPa
API 5L X52	360 MPa	460 MPa
API 5L X60	415 MPa	520 MPa
API 5L X65	450 MPa	535 MPa

API 5L Pipe Wall Thickness Chart

Selecting the correct piping schedule is vital to ensuring safe, reliable operations in high-pressure oil and gas transmission systems. Sourcing from a certified manufacturer ensures your pipelines meet the structural integrity demands of tough engineering environments. The wall thickness values below outline standard nominal dimensions across major pipe schedules, allowing design teams to quickly cross-reference specifications for their exact layout requirements.

Nominal Pipe Size (NPS) and Wall Thickness Chart

SHEET 04

Nominal Pipe Size (NPS)	Outside Diameter (OD)	SCH 40 (Wall Thickness)	SCH 80 (Wall Thickness)
1/2"	0.840 inches	0.109 inches	0.147 inches
3/4"	1.050 inches	0.113 inches	0.154 inches
1"	1.315 inches	0.133 inches	0.179 inches
1 1/2"	1.900 inches	0.145 inches	0.200 inches
2"	2.375 inches	0.154 inches	0.218 inches
3"	3.500 inches	0.216 inches	0.300 inches
4"	4.500 inches	0.237 inches	0.337 inches
6"	6.625 inches	0.280 inches	0.432 inches
8"	8.625 inches	0.322 inches	0.500 inches
10"	10.750 inches	0.365 inches	0.594 inches
12"	12.750 inches	0.406 inches	0.688 inches
14"	14.000 inches	0.438 inches	0.750 inches
16"	16.000 inches	0.500 inches	0.844 inches
18"	18.000 inches	0.562 inches	0.938 inches
20"	20.000 inches	0.594 inches	1.031 inches
24"	24.000 inches	0.688 inches	1.219 inches

Applications

Primary Applications & Usage Fields

High-performance pressure sections are widely adopted across bulk processing industries due to their outstanding resistance to physical deformation. Utilizing specialized API 5L Carbon Steel Pipe assets eliminates rapid component degradation, ensuring long-term reliability for critical distribution loops.

APP / 01

Oil and Natural Gas Transmission

Extensively used in cross-country mainline networks, gathering lines, and upstream flowlines due to high stability under volatile pressure conditions.

APP / 02

Petrochemical Processing Grids

Ideal for refinery interconnecting lines, hydrocarbon transmission systems, and high-pressure chemical transfer setups demanding certified structural resilience.

APP / 03

Offshore Marine Pipelines

Deployed in deepwater production lines, subsea risers, and coastal platform piping arrays built to withstand severe external hydrostatic forces.

APP / 04

High-Pressure Slurry Transport

Widely integrated into mining infrastructure, heavy industrial waste lines, and power plant ash handling systems where internal abrasive wear is constant.

Working closely with a certified API 5L Seamless Pipes Supplier in India ensures that your project receives components tailored to survive aggressive environments. This material strategy protects your capital investments from premature operational decay.

Quality Assurance

Quality Testing Protocols & Corporate Credentials

Ensuring flawless performance in high-pressure systems demands a rigorous material verification approach at the factory level. Because structural components face non-stop physical fatigue, any underlying micro-fissures could compromise the system under unexpected dynamic loads.

Our advanced facility subjects all API 5L Grade B Seamless Pipe lots to strict hydrostatic evaluations, flattening checks, and ultrasonic tracking prior to warehouse clearance. Sourcing from a certified API 5L Seamless Pipes Manufacturer in India secures fully validated materials backed by an official EN 10204 3.1 Mill Test Certificate.

Proven Market Authority & Official Government Certifications

CREDENTIALS

Registration Type	Official Details / Certificate Number
Quality Management	ISO 9001:2015 Certified (Certificate: 24MEQSF98)
Government Enterprise	Registered Micro Enterprise (UDYAM-MH-27-0009247)
Global Trade Import/Export	DGFT Issued IEC Code: 0314032398
Industry Classification	NIC Code: 24109 (Basic Iron & Steel Manufacturing)

View & Download Our Full-Resolution Quality Certificates

FAQ

Frequently Asked Questions

What is the difference between PSL 1 and PSL 2 in API 5L Line Pipe?

PSL 1 provides a standard quality grade for line assets, while PSL 2 enforces stricter chemical limits, mandatory notch toughness testing, and higher mechanical performance verification parameters for severe environments.

Can API 5L Carbon Steel Pipe handle sour gas service?

Yes, provided they are specified with additional HIC (Hydrogen-Induced Cracking) and SSCC testing. Our facility manufactures dedicated sour-service pipelines that comply with strict NACE MR0175 regulatory limits.

Why is a seamless configuration preferred over welded alternatives?

Seamless options eliminate the presence of a longitudinal weld seam, drastically reducing the risk of localized weak points. This seamless design enables uniform pressure handling across the entire body of the line asset.

How do I verify the authenticity of an API 5L Grade B Seamless Pipe shipment?

Every legitimate shipment features a unique heat number stamped onto the surface, which matches the enclosed EN 10204 3.1 Mill Test Certificate. This validation ensures complete raw material traceability to the original melt batch.