Top Trusted Flanges & Pipe Fittings Supplier in Nigeria

ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in Nigeria

Trusted ASME B16.9 Buttweld Pipe Fittings, ASME B16.11 Forged Pipe Fittings, Carbon Steel, Stainless Steel, Duplex Steel and Alloy Steel Products

Prime Steel Corporation is a trusted ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in Nigeria, supplying premium-quality industrial piping products to customers across the oil & gas, petrochemical, offshore, LNG, power generation, marine, fertilizer, water treatment, and infrastructure industries. As an experienced manufacturer and global exporter, we provide high-performance flanges and pipe fittings manufactured to international standards, ensuring reliability, durability, and excellent performance in demanding industrial applications throughout Nigeria.

How To find right flanges & Pipe fittings supplier in Nigeria

  • 1. Contact Prime Steel Corporation

  • 2. Inquire on Live Chat

  • 3. Ask quotation via email

  • 4. Check product's standards

  • 5. Check Our Size and Dimensions

  • 6. Submit your requirements

  • 7. Find best offers

  • 8. Become our export partners

Major cities/regions in Nigeria we are supplying and exporting flanges and pipe fittings

Lagos 01

Top trusted flanges and pipe fittings supplier in Lagos. Nigeria's major commercial and port hub, serving marine transportation and infrastructure projects.

Port Harcourt 02

Reliable flanges and pipe fittings supplier in Port Harcourt. The center of Nigeria's oil and gas sector, serving refineries, oil fields, and engineering contractors.

Warri 03

Leading flanges and pipe fittings supplier in Warri. Catering to industrial refineries, petrochemical facilities, and offshore production firms in the Delta region.

Onne 04

Top trusted flanges and pipe fittings supplier in Onne. Home to the major oil and gas free trade zone and deepwater shipping terminals.

Kaduna 05

Premium flanges and pipe fittings supplier in Kaduna. Supplying piping components for regional refineries, textile mills, and manufacturing plants.

Abuja 06

Trusted flanges and pipe fittings supplier in Abuja. Supplying premium pipeline accessories for public utilities, infrastructure, and administrative construction.

International Standard of Flanges

ANSI/ASME

The ANSI/ASME B16.5 and B16.47 flange specifications have their origins in the earlier B16.1 specification. B16.1 primarily dealt with cast iron flanges, and as industrial needs evolved.

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DIN

Deutsches Institute fur Normung flange specification, consisting of a variety of European styles that have been unified into one code for commonality.


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API

American Petroleum Institute flanges and fittings are referenced under API 6A and utilized for high-pressure oilfield applications.



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JIS

“JIS” Stands for Japanese Industrial Standard and is published by the Japanese Standards Association (JSA), the equivalent of ANSI in the United States.

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AWWA

American Water Works Association flanges are the exact opposite of the API flanges and can be found in various assemblies in which temperature is ambient and media is not corrosive.

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GOST

GOST refers to the national standards system used in Russia and other countries that were part of the former Soviet Union. These standards are set by the Federal Agency.

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Flange Pressure Class Explained

In the realm of piping systems and engineering, terms like "Flange Pressure Class," "Flange Class Rating," and "Flange Class" are often employed interchangeably to denote the pressure rating or class designation of a flange. This class rating is a pivotal parameter, specifying the pressure at which a flange can safely operate within a given system. A typical representation includes the class number followed by symbols like ‘#’, ‘Lb’, or ‘lbs’ – for instance, a "Class 150#" flange denotes a pressure rating of 150 pounds per square inch (psi).

Flanges are classified into different pressure classes to specify their maximum working pressure and are designed to suit different pressure ratings. The pressure class is an important factor in determining the appropriate flange for a specific application. The working pressure depends on various factors, including the material, temperature, and other design considerations.

If you need precise information about the working pressure for a Class 1500 flange, it is essential to consult the industry standards ASME/ANSI B16.5 for flanges. The standards or manufacturer's documentation will provide the necessary details regarding the maximum allowable working pressure for a Class 1500 flange under specific conditions.

ASME B16.5 Class 150 Flange
"Class 150" denotes the pressure rating (150 psi).

The '#' symbol is used to indicate pounds, so it's as "150 pounds per square inch." Commonly used in low-pressure applications such as water supply, heating, and general industrial processes.

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ASME B16.5 Class 300 Flange
"Class 300" denotes the pressure rating (300 psi).

The '#' symbol is used to indicate pounds, so it's as "300 pounds per square inch." Suitable for moderate-pressure applications in industries like chemical processing and oil refineries.

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ASME B16.5 Class 600 Flange
"Class 600" denotes the pressure rating (600 psi).

The '#' symbol is used to indicate pounds, so it's as "600 pounds per square inch." Used in higher-pressure applications where increased strength and reliability are required, such as in power plants.

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ASME B16.5 Class 900 Flange
"Class 900" denotes the pressure rating (900 psi).

The '#' symbol is used to indicate pounds, so it's as "900 pounds per square inch." Employed in demanding applications with higher pressure requirements, and high-temperature processes.

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ASME B16.5 Class 1500 Flange
"Class 1500" denotes the pressure rating (1500 psi).

The '#' symbol is used to indicate pounds, so it's as "1500 pounds per square inch." Designed for severe service conditions, often found in the chemical and petrochemical industries.

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ASME B16.5 Class 2500 Flange
"Class 2500" denotes the pressure rating (2500 psi).

The '#' symbol is used to indicate pounds, so it's as "2500 pounds per square inch." Reserved for high-pressure applications, such as those found in critical processes within the oil & gas industry.

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ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in Nigeria

Prime Steel Corporation is a trusted ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in Nigeria, supplying premium-quality industrial piping products to customers across the oil & gas, petrochemical, offshore, LNG, power generation, marine, fertilizer, water treatment, and infrastructure industries. As an experienced manufacturer and global exporter, we provide high-performance flanges and pipe fittings manufactured to international standards, ensuring reliability, durability, and excellent performance in demanding industrial applications throughout Nigeria.

Nigeria is Africa's largest oil-producing nation and one of the continent's leading industrial economies. The country continues to invest heavily in upstream and downstream oil & gas projects, refineries, LNG plants, offshore developments, petrochemical facilities, power generation, and infrastructure expansion. These industries require industrial piping components capable of operating safely under high pressure, elevated temperatures, and corrosive environments. Prime Steel Corporation manufactures precision-engineered products using advanced manufacturing technology and strict quality control procedures to meet these demanding requirements.

Our manufacturing facility produces products in Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, Low Temperature Carbon Steel, Nickel Alloys, Inconel, Monel, Hastelloy, Titanium, Copper Nickel, and other specialty alloys. Every flange and pipe fitting undergoes comprehensive dimensional inspection, material verification, hydrostatic testing, and quality assurance before shipment to ensure complete compliance with international standards and customer specifications.

ASME & ANSI B16.5 Flanges

Prime Steel Corporation manufactures and exports a comprehensive range of ASME & ANSI B16.5 Flanges designed for industrial piping systems operating under low, medium, and high-pressure conditions. Our flanges provide leak-proof pipe connections, excellent sealing performance, and superior mechanical strength for critical industrial applications.

Our flange range includes:

  • Blind Flanges
  • Slip On Flanges
  • Weld Neck Flanges
  • Socket Weld Flanges
  • Lap Joint Flanges
  • Plate Flanges
  • Threaded (Screwed) Flanges
  • Reducing Flanges
  • Ring Type Joint (RTJ) Flanges
  • Long Weld Neck Flanges

Available in multiple pressure classes, dimensions, and facing configurations, our flanges are widely used in offshore oil platforms, petroleum refineries, LNG terminals, petrochemical plants, power stations, marine engineering projects, and industrial processing facilities across Nigeria. Carbon Steel flanges are preferred for high-pressure pipeline systems, while Stainless Steel, Duplex Steel, and Super Duplex Steel flanges provide exceptional corrosion resistance for offshore and chemical processing applications.

ASME B16.9 Buttweld Pipe Fittings

Prime Steel Corporation manufactures premium-quality ASME B16.9 Buttweld Pipe Fittings engineered to provide smooth fluid flow, secure pipe connections, and long operational life. Manufactured from high-quality raw materials using advanced production processes, our fittings ensure superior dimensional accuracy and dependable performance.

Our buttweld fitting range includes:

  • 45° Elbows
  • 90° Elbows
  • 180° Return Bends
  • Equal Tees
  • Reducing Tees
  • Concentric Reducers
  • Eccentric Reducers
  • Stub Ends
  • Pipe Caps
  • Pipe Crosses

These buttweld fittings are extensively supplied to Nigeria's oil & gas facilities, offshore platforms, LNG projects, petrochemical industries, fertilizer plants, power generation stations, water treatment facilities, and industrial fabrication companies.

ASME B16.11 Forged Pipe Fittings

Prime Steel Corporation also manufactures ASME B16.11 Forged Pipe Fittings for high-pressure piping systems requiring threaded or socket weld connections. Every forged fitting is precision manufactured and thoroughly tested to ensure maximum mechanical strength, leak-free performance, and long service service life.

Our forged fitting range includes:

  • Socket Weld Elbows
  • Socket Weld Tees
  • Socket Weld Couplings
  • Socket Weld Unions
  • Socket Weld Crosses
  • Threaded Elbows
  • Threaded Tees
  • Threaded Couplings
  • Threaded Unions
  • Hex Nipples
  • Bushings
  • Plugs
  • Caps

These forged fittings are widely used in instrumentation systems, hydraulic piping, steam pipelines, process industries, offshore facilities, and industrial manufacturing plants requiring dependable high-pressure piping solutions.

Types of Flanges we Export in Nigeria

Material Grades We Manufacture

Prime Steel Corporation manufactures flanges and pipe fittings in a broad range of material grades suitable for demanding industrial applications.

Available materials include:

  • Carbon Steel
  • Stainless Steel
  • Alloy Steel
  • Duplex Steel
  • Super Duplex Steel
  • Low Temperature Carbon Steel
  • Nickel Alloy
  • Inconel
  • Monel
  • Hastelloy
  • Titanium
  • Copper Nickel

Our extensive material selection enables us to provide products that offer superior corrosion resistance, excellent mechanical properties, and reliable long-term performance in harsh industrial environments.

Industries We Serve in Nigeria

Our industrial piping products are supplied to customers across Lagos, Port Harcourt, Abuja, Warri, Kano, Kaduna, Onne, and other major industrial regions throughout Nigeria.

Major industries include:

  • Oil & Gas Industry
  • Offshore Oil Production
  • LNG Processing Plants
  • Petrochemical Plants
  • Refineries
  • Fertilizer Industry
  • Power Generation
  • Marine Engineering
  • Water & Wastewater Treatment
  • Infrastructure Projects
  • EPC Contractors
  • Industrial Fabrication

Our products are manufactured to deliver dependable performance while complying with international quality and safety standards.

Why Choose Prime Steel Corporation?

Prime Steel Corporation combines advanced manufacturing technology, experienced engineers, and rigorous quality management systems to deliver industrial piping products trusted by customers worldwide.

Our strengths include:

  • Complete Range of Flanges, Buttweld Pipe Fittings & Forged Pipe Fittings
  • Manufactured as per ASME, ANSI, ASTM, MSS & DIN Standards
  • Carbon Steel, Stainless Steel, Duplex Steel & Specialty Alloys
  • ISO-Compliant Manufacturing
  • Third-Party Inspection Available
  • Mill Test Certificates (EN 10204 3.1)
  • PMI, Hydrostatic & Dimensional Testing
  • Competitive Pricing
  • Ready Stock for Standard Sizes
  • Custom Manufacturing Solutions
  • Export-Quality Packaging
  • Fast Worldwide Delivery

Conclusion

Prime Steel Corporation is a dependable ASME & ANSI B16.5 Flanges & Pipe Fittings Manufacturer & Supplier in Nigeria, supplying premium-quality ASME B16.5 Flanges, ASME B16.9 Buttweld Pipe Fittings, and ASME B16.11 Forged Pipe Fittings for oil & gas, offshore, LNG, petrochemical, fertilizer, power generation, marine, and industrial applications. Manufactured in Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel, and specialty alloys, our products comply with international standards and are engineered for reliable performance in demanding industrial environments. With our commitment to quality, competitive pricing, and efficient worldwide delivery, Prime Steel Corporation continues to be a trusted partner for industrial piping solutions throughout Nigeria.

ANSI B16.5 Suppliers Nigeria

The ANSI/ASME B16.5 standard serves as a comprehensive guide for the dimensions and tolerances of pipe flanges, covering a size range from ½" to 24" Nominal Pipe Size (NPS).

ASME B16.36 Flanges Supplier Nigeria

ANSI/ASME B16.36 standard stands as a specialized guide, addressing the dimensions and tolerances for a distinct category of flanges known as orifice flanges. Comparable to the widely used ANSI B16.5 standard, B16.36 distinguishes itself by placing a particular emphasis on orifice pressure differential connections.

ASME B16.47 Series A Suppliers Nigeria

The ANSI/ASME B16.47 standard is specifically designed to address the dimensions and tolerances of large-diameter pipe flanges, catering to sizes ranging from 26 to 60 inches Nominal Pipe Size (NPS). This standard is instrumental in ensuring the precise specifications for flanges intended for heavy-duty applications where larger diameters are required.

ASME B16.47 Series B Manufacturers Nigeria

The ASME B16.47 Series B standard emerges as a cornerstone in the realm of large-diameter pipe flanges, offering meticulous guidance on dimensions and tolerances for sizes spanning from 26 to 60 inches in Nominal Pipe Size (NPS). Tailored to meet the demands of robust industrial applications, this standard stands out for its comprehensive coverage of pressure ratings, including Class 75, 150, 300, 400, 600, and 900 lbs.

Check ANSI/ASME B16.5, B 16.47 Series A & B, B16.48 Flange Dimensions Download

We manufacture Blind Flanges, Slip On Flanges, Weld Neck Flanges, Socket Weld Flanges, Lap Joint Flanges, Plate Flanges, Threaded Flanges, RTJ Flanges, Long Weld Neck Flanges, and Reducing Flanges in accordance with ASME & ANSI B16.5 standards.
Yes. We manufacture ASME B16.9 Buttweld Pipe Fittings including 45° Elbows, 90° Elbows, Equal Tees, Reducing Tees, Concentric Reducers, Eccentric Reducers, Stub Ends, Pipe Caps, and Pipe Crosses.
Our forged fitting range includes Socket Weld and Threaded Elbows, Tees, Couplings, Unions, Bushings, Hex Nipples, Plugs, Caps, and Crosses for high-pressure industrial piping systems.
We manufacture products in Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, Low Temperature Carbon Steel, Nickel Alloy, Inconel, Monel, Hastelloy, Titanium, and Copper Nickel.
Our products are widely supplied to oil & gas companies, offshore production facilities, LNG plants, refineries, petrochemical industries, fertilizer plants, marine engineering projects, power generation stations, EPC contractors, and industrial fabrication companies throughout Nigeria.
Yes. All products are supplied with EN 10204 3.1 Mill Test Certificates, and third-party inspection services can be arranged according to customer specifications and project requirements.
Yes. We manufacture both standard and custom flanges and pipe fittings according to customer drawings, pressure ratings, dimensions, material specifications, and international standards.
Yes. Prime Steel Corporation exports industrial flanges and pipe fittings throughout Nigeria with export-quality packaging, efficient logistics, and timely worldwide delivery for offshore, oil & gas, LNG, petrochemical, power generation, and industrial engineering projects.

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