Stainless Steel Flanges for Nigeria

Leading Manufacturer of Precision Stainless Steel Flanges for Nigeria’s Oil & Gas Industry

Werner Flanges is a globally recognized manufacturer and exporter of stainless steel flanges, proudly serving Nigeria's rapidly expanding industrial sector with precision-engineered piping components backed by over two decades of manufacturing expertise. As Nigeria continues to develop its oil and gas infrastructure, petrochemical complexes, and power generation capacity, the demand for high-integrity, corrosion-resistant stainless steel flanges has never been greater — and Werner Flanges is positioned to meet that demand with speed, reliability, and technical excellence.

We supply stainless steel flanges across Nigeria’s major industrial and commercial centers, including Lagos, Port Harcourt, Warri, Aba, Kaduna, Kano, and Abuja. Our products reach upstream oil fields in the Niger Delta, offshore platforms in the Bight of Benin, and petrochemical facilities along the Port Harcourt industrial corridor.

Our stainless steel flange range covers all major types — weld neck, slip-on, blind, socket weld, threaded, and lap joint — manufactured in grades 304, 304L, 316, 316L, and 321 to ASME B16.5, ASME B16.47, DIN, and BS standards. Every flange we produce is manufactured from certified raw materials with full traceability, third-party inspection-ready documentation, and compliance with NACE MR0175 for sour service environments — critical for Nigeria’s H₂S-rich oil and gas applications.

Whether you are an EPC contractor procuring materials for an NNPC-licensed project, a downstream refinery upgrading process piping, or an engineering firm managing a power plant expansion, Werner Flanges provides a single-source solution with competitive pricing, fast lead times, and expert technical support.

Werner Flanges is a leading stainless steel flanges manufacturer in Nigeria, supplying 316L flanges for oil and gas Nigeria, ASME B16.5 stainless flanges Port Harcourt, duplex flanges supplier Lagos, NACE MR0175 flanges Nigeria, weld neck stainless steel flanges Niger Delta, stainless steel blind flanges exporter Nigeria, A182 F316L flanges Dangote Refinery, and sour service stainless flanges NNPC projects. Our products are trusted by EPC contractors, procurement companies, and engineering firms across Lagos, Port Harcourt, Warri, Aba, Abuja, Kano, and Kaduna.

Specifications

Specification	Details
Pressure Rating	Class 150 to Class 2500
Flange Type	Plate Flange
Facing Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Size Range	½” to 24” (DN 15 to DN 600)
Temperature Range	-29°C to +593°C (Depending on Material & Pressure Class)
Applications	Oil & Gas, Petrochemical, Power Generation, Water Treatment, Marine & Industrial Sectors
Manufacturing Process	Forged / Machined
Certification	EN 10204 3.1 / 3.2, IBR, NACE MR0175 / ISO 15156 (as applicable)

Matel and Grade

Type of Materials	Common Specifications / Customization Available on Request
Duplex Steel	ASTM/ASME A182 F51, F60, F61, UNS S31803, UNS S32205
Super Duplex Steel	ASTM/ASME A182 F53, F55, UNS S32750, UNS S32760, F44 (6Mo)
Stainless Steel	ASTM/ASME A182 F304, F304L, F316, F316L, F310, F317L, F321, F347
Carbon Steel	ASTM A105, A350 LF1, LF2, LF3, A266 Class 1/2, A694 F42 to F70, A765 Gr. II
Alloy Steel	ASTM/ASME A182 F1, F5, F9, F11, F12, F22
Non-Ferrous Alloys	Titanium, Brass, Admiralty Brass, Copper Nickel, Nickel Alloys, Hastelloy
Titanium	ASTM/ASME B381 Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16
Copper Nickel	ASTM B151 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30)
Brass, Al-Brass	ASTM B152 UNS C26000, C27200, C28000; ASTM B111 for Al-Brass
Nickel Alloys	ASTM B160, B161, B564 – UNS N02200, N02201, N04400, N08800, N08825, N06600, N06601, N06625, Monel K500
Alloy 20	ASTM B462 UNS N08020
Hastelloy	ASTM B564 UNS N10276 (Hastelloy C276), N06022 (Hastelloy C22)
Cladded Materials	ASTM B898, B265, B424 or custom explosion/clad bonding using dissimilar metals
Cladded Materials	Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations

Types of Flanges

Slip On Flanges	Weld Neck Flanges	Blind Flanges	Socket Weld Flanges	Threaded Flanges
Lap Joint Flanges	Reducing Flanges	Orifice Flanges	Long Weld Neck Flanges	Plate Flanges

Industries and Applications We Supply

Industry	Applications
Oil & Gas Industry	Nigeria is Africa’s largest oil producer, with proven reserves exceeding 37 billion barrels and a gas reserve base of approximately 200 trillion cubic feet. The oil and gas sector accounts for the vast majority of Nigeria’s stainless steel flange consumption.Upstream Applications: In onshore and offshore production, stainless steel flanges are used in wellhead assemblies, Christmas tree connections, production manifolds, and test separator piping. The H₂S and CO₂ content of Nigeria’s crude — particularly in the Niger Delta basin — demands NACE-compliant materials with strict hardness limits. F316L and duplex F51 are extensively used.Midstream Applications: Nigeria’s growing gas gathering and processing infrastructure — including the Nigeria LNG (NLNG) complex at Bonny Island and numerous gas processing plants — relies on stainless steel flanges in cryogenic service (F304L for LNG), sour gas scrubbing, and lean/rich amine piping.Downstream Applications: Port Harcourt Refinery, Warri Refinery, and the Dangote Refinery & Petrochemicals Complex (the world’s largest single-train refinery, located in Lagos Free Trade Zone) represent major demand centers for stainless steel flanges in crude distillation, hydrotreating, catalytic cracking, and product blending service. Offshore Applications: Nigeria’s deepwater blocks (OML 118, 130, 132, 133, and others) operated by Shell, TotalEnergies, ExxonMobil, Chevron, and NNPC use stainless steel and super duplex flanges extensively in topsides piping, riser systems, and subsea manifolds.
Petrochemical & Refining	The Eleme Petrochemicals complex (Port Harcourt), Notore Chemical Industries, and the emerging Lekki Free Zone chemical cluster represent major consumers of stainless steel flanges in chemical reactor systems, distillation columns, corrosive chemical piping, and storage vessel nozzles. F316L is the standard material for chloride and acid service.
Power Generation	Nigeria has an installed power generation capacity of approximately 13,000 MW, with significant expansion underway through gas-fired combined cycle plants, hydroelectric facilities (Kainji, Jebba, Shiroro), and the growing off-grid solar sector. Stainless steel flanges are used in boiler feed water systems, steam headers, turbine extraction lines, and cooling water circuits. F321 is specified for high-temperature steam service.
Water & Wastewater Treatment	Nigeria’s federal and state water authorities, as well as large industrial facilities, use stainless steel flanges in municipal water treatment plants, desalination units (particularly in Lagos State), industrial effluent treatment systems, and potable water distribution networks. Grade 316L is preferred for its resistance to chlorine-based disinfection chemicals.

Frequently Asked Questions (FAQs)

q1: are your stainless steel flanges nace mr0175 compliant for use in nigeria’s sour oil and gas environments?: yes. werner flanges supplies nace mr0175 / iso 15156 compliant stainless steel flanges with hardness-controlled manufacturing and certified hardness test reports included in the documentation package. this is standard practice for all stainless and duplex grades supplied for nigerian sour service.
q2: what is the typical lead time for stainless steel flanges delivered to port harcourt or lagos?: standard sizes in grades 304l and 316l are typically available from stock and can be shipped within 7–10 working days. sea freight transit from our facility to apapa port (lagos) or onne port (port harcourt) takes approximately 18–22 days. for urgent requirements, air freight to lagos or port harcourt airports reduces total delivery time to 12–17 days from order confirmation.
q3: can you supply stainless steel flanges for the dangote refinery or other major nigerian petrochemical projects?: yes. we supply epc contractors and procurement agents working on major nigerian industrial projects, including large-scale refinery and petrochemical developments. we can provide vendor qualification documentation, project-specific quality plans, and third-party inspection arrangements through internationally recognized inspection agencies.
q4: do you offer duplex and super duplex stainless steel flanges for nigeria’s offshore sector?: yes. we manufacture flanges in duplex f51 (2205) and super duplex f53 (2507) and f55 (zeron 100), compliant with astm a182 and tested per astm g48 for pitting resistance. these are widely used in nigeria’s offshore production systems, produced water handling, and subsea equipment.
q5: can you provide material certificates with heat traceability for nnpc-approved projects?: yes. we maintain full heat-to-component traceability from raw material to finished product. all mtcs are issued per en 10204 type 3.1 as standard; type 3.2 (third-party witnessed) is available upon request. heat numbers are permanently marked on each flange per mss sp-25.
q6: do you supply custom stainless steel flanges to non-standard sizes or specifications?: yes. custom manufacturing is a core capability at werner flanges. we produce flanges to customer-specific drawings, non-standard bore schedules, special facings, and project-unique marking requirements. our engineering team reviews custom rfqs within 24 hours and provides feasibility confirmation promptly.
q7: are your flanges compatible with din piping systems used in some nigerian industrial facilities?: yes. werner flanges manufactures stainless steel flanges to din 2633 (pn 16) and din 2634 (pn 25) standards in addition to asme b16.5, making us a versatile supplier for nigerian facilities with mixed-standard piping systems.