Stainless Steel Flanges Supplier to Turkey

Leading Manufacturer & Exporter of
Stainless Steel Flanges to Turkey

Werner Flanges is a premier manufacturer and global exporter of high-quality stainless steel flanges to Turkey, serving the country's rapidly expanding industrial infrastructure for over two decades. As Turkey positions itself as a manufacturing and energy hub bridging Europe and Asia, we supply corrosion-resistant stainless steel flanges that meet the demanding requirements of Turkish industries, from petrochemical complexes in Izmir to oil refineries in Kırıkkale and power plants across Anatolia.
Our extensive range of stainless steel flanges is manufactured in full compliance with international standards including ASME B16.5, ASME B16.47, DIN 2527-2637, EN 1092-1, and BS 4504, ensuring seamless integration with Turkey's diverse industrial projects. We specialize in austenitic grades including ASTM A182 F304/F304L, F316/F316L, and F321, as well as duplex and super duplex grades F51, F53, and F55 for applications requiring superior strength and corrosion resistance.

Turkey’s strategic location as a trade corridor and its booming industries—including TÜPRAŞ refineries, BOTAŞ natural gas infrastructure, STAR Refinery in Aliağa, and numerous automotive and food processing facilities—demand reliable, high-performance piping components. Werner Flanges addresses these needs with precision-engineered stainless steel flanges available in all pressure classes from 150# to 2500# and sizes ranging from 1/2″ to 60″.

Our manufacturing facility employs state-of-the-art forging, heat treatment, and machining processes to produce flanges that withstand Turkey’s diverse operating conditions—from the corrosive marine environments of the Marmara and Mediterranean coasts to high-temperature applications in thermal power stations and chemical plants. Every flange undergoes rigorous quality testing including PMI analysis, mechanical testing, dimensional inspection, and non-destructive examination to ensure compliance with Turkish regulatory requirements and international quality standards.

With efficient logistics networks connecting to major Turkish ports including Ambarlı, Mersin, Izmir, and Gemlik, we ensure timely delivery of stainless steel flanges to industrial zones across Turkey including Gebze, Kocaeli, Aliağa, Bursa, and Gaziantep. Our technical support team provides expert guidance on material selection, pressure class specifications, and application-specific requirements for the Turkish market.

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	Turkey’s strategic position as an energy corridor and its domestic oil and gas production create substantial demand for corrosion-resistant stainless steel flanges.TÜPRAŞ Refineries (Izmit, Izmir, Kırıkkale, Batman): Stainless steel flanges serve critical applications in crude distillation units, catalytic reformers, and hydrotreaters where corrosive sulfur compounds and high temperatures demand F316L and F321 materials. Desulfurization units processing high-sulfur crude from Iraq and Russia require flanges resistant to sulfidic corrosion. Naphtha and aromatics processing units use F304L flanges for moderate corrosive service with excellent cleanability.STAR Refinery (Aliağa, Izmir): This 10 million ton-per-year refinery, one of Turkey’s largest investments, utilizes extensive stainless steel piping with F316L flanges in seawater cooling systems, F321 flanges in high-temperature catalytic cracking units, and duplex F51 flanges in offshore crude oil receiving terminals exposed to marine environments. BOTAŞ Natural Gas Infrastructure: Turkey’s extensive natural gas transmission network connecting Iranian, Russian, and Azerbaijani supplies requires stainless steel flanges at compressor stations, pressure reduction stations, and metering facilities. F316 flanges provide corrosion resistance against moisture and acid gases, while F304 serves dry gas applications in distribution networks serving Istanbul, Ankara, Izmir, and other major Turkish cities. Offshore Black Sea Exploration: Turkey’s recent natural gas discoveries in the Black Sea (Sakarya gas field) demand subsea-grade super duplex F53/F55 flanges for production equipment, wellhead connections, and subsea manifolds resistant to seawater corrosion and high pressures.
Petrochemical & Chemical Processing	PetKim Petrochemical Complex (Aliağa): Turkey’s largest integrated petrochemical facility producing ethylene, propylene, polyethylene, and PVC utilizes stainless steel flanges extensively in corrosive chemical service. Ethylene cracking furnaces require F321 high-temperature flanges, while chlorine handling systems demand F316L for chloride resistance.SOCAR Turkey Petrochemical Complex (Aliağa): This Azerbaijani-Turkish joint venture processing Caspian crude requires F316L flanges in naphtha treatment, F321 in thermal crackers, and F304 in intermediate chemical storage and transfer systems. Chemical Manufacturing (Istanbul, Kocaeli, Gebze Industrial Zones): Turkish chemical plants producing sulfuric acid, caustic soda, fertilizers, and specialty chemicals rely on stainless steel flanges for corrosion resistance. Fertilizer plants in Kütahya and Samsun use F316L flanges in phosphoric acid service, while caustic soda producers employ F304 flanges resistant to alkaline corrosion.
Power Generation	Thermal Power Plants: Turkey’s coal-fired power stations (Afşin-Elbistan, Çatalağzı, Yatağan, Kemerköy) and natural gas combined cycle plants require F321 stainless steel flanges in superheater and reheater steam lines operating at 540-565°C. Main steam lines use Class 600 or 900 F321 flanges, while lower-temperature feedwater systems employ F304L flanges.Akkuyu Nuclear Power Plant (Under Construction): Turkey’s first nuclear power station under development in Mersin province will require extensive stainless steel flanges in reactor cooling systems, steam generators, and auxiliary systems with stringent quality requirements including RT examination and nuclear-grade certification. Geothermal Power Stations (Denizli, Aydın, Manisa): Turkey ranks among global leaders in geothermal energy, with power plants requiring F316L flanges resistant to geothermal brine containing chlorides, hydrogen sulfide, and other corrosive components at 150-250°C.
Water & Wastewater Treatment	Desalination Plants (Coastal Cities): Mediterranean and Aegean coastal desalination facilities use duplex F51 or super duplex F53 flanges in seawater intake systems and high-pressure reverse osmosis units where chloride pitting resistance is critical.Municipal Water Treatment (Istanbul, Ankara, Izmir): Turkey’s expanding urban infrastructure requires F304 and F316L flanges in drinking water treatment plants, wastewater treatment facilities, and distribution networks. The Istanbul Metropolitan Municipality’s massive water infrastructure serving 15+ million people extensively uses stainless steel flanges for durability and hygiene. Industrial Wastewater Treatment: Textile plants in Denizli and Bursa, automotive factories in Kocaeli, and food processing facilities across Turkey employ F316L flanges in wastewater treatment systems handling corrosive effluents before discharge to municipal systems.

Frequently Asked Questions (FAQs)

Q1. What stainless steel grades are suitable for Turkey’s coastal and marine applications?

For Turkish coastal facilities along the Mediterranean, Aegean, and Black Sea, we recommend ASTM A182 F316L as the minimum grade due to its enhanced molybdenum content (2-3%) providing superior resistance to chloride pitting and crevice corrosion. Desalination plants, offshore platforms, and seawater cooling systems should specify duplex F51 (2205) or super duplex F53/F55 (2507) grades offering twice the yield strength and exceptional resistance to stress corrosion cracking in seawater. F304L is suitable for inland facilities with atmospheric exposure but insufficient for direct seawater contact or marine spray zones.

Q2. How long does delivery take to major Turkish cities and ports?

Standard sea freight delivery from our manufacturing facility to Turkish ports takes 18-22 days: 14-16 days ocean transit plus 2-3 days port handling and customs clearance. Major ports (Ambarlı-Istanbul, Mersin, Alsancak-Izmir, Gemlik) receive container shipments efficiently. Inland cities like Ankara or Konya add 1-2 days truck transport. Expedited air freight delivers to Istanbul, Ankara, or Izmir airports in 5-7 days, recommended for urgent replacement flanges. Complete logistics support including freight forwarding, customs brokerage, and delivery tracking is provided.

Q3. Do your stainless steel flanges comply with European standards used in Turkey?

Yes, our stainless steel flanges conform to both American and European standards prevalent in Turkish industry. We manufacture to ASME B16.5, DIN 2527-2637, EN 1092-1, and BS 4504 specifications. Turkish facilities with German engineering often specify DIN flanges with PN pressure ratings, while EU-funded infrastructure projects require EN 1092-1 compliance. We provide flanges marked per specified standard with corresponding pressure-temperature ratings. PED 2014/68/EU certification is available for pressure equipment directive compliance. Material grades cross-reference between ASTM and EN systems (F316L = 1.4404, F304L = 1.4307).

Q4. Can you provide NACE MR0175 certified flanges for Turkish sour gas applications?

Yes. For Turkish oil and gas facilities handling hydrogen sulfide (H₂S), including sour gas processing plants, we provide NACE MR0175/ISO 15156 compliant stainless steel flanges. F316L grade meets NACE requirements for most sour service conditions with proper hardness control (max 22 HRC). For severe sour service with high H₂S partial pressures, we recommend super duplex F53/F55 grades with supplementary sulfide stress cracking resistance testing. Complete NACE documentation, including hardness verification, chemical analysis confirmation, and compliance certification, is provided. Third-party witness testing is available through SGS Turkey or TÜV.

Q5. What documentation is required for customs clearance in Turkey?

Turkish customs requires comprehensive documentation for stainless steel flange imports. Essential documents include:

Commercial invoice (detailed description, value, origin)
Packing list (gross/net weight, dimensions, piece count)
Bill of Lading (original or telex release)
Certificate of Origin (preferential tariff treatment under trade agreements)
Material Test Certificates (EN 10204 3.1 minimum)

Additional documents often required:

Inspection certificate from Turkish-recognized body (SGS, Bureau Veritas)
Manufacturer’s declaration of conformity
Safety data sheet (for hazardous material classification)
Insurance certificate (if CIF delivery)

Turkish regulatory requirements:

TSE conformity mark (for certain applications)
CE marking (for PED compliance when applicable)

Complete documentation packages are provided, and our export team coordinates with Turkish customs brokers for smooth clearance.

Q6. Do you offer customized stainless steel flanges for non-standard Turkish applications?

Yes. Werner Flanges specializes in custom stainless steel flange manufacturing for unique Turkish requirements. Custom capabilities include:

Non-standard dimensions per customer drawings (special OD, thickness, bolt circle)
Special material grades (904L, 254 SMO, AL-6XN, Alloy 20, Hastelloy)
Modified facing types (tongue-and-groove, male-female, lens ring)
Integral components (reducing flanges, spectacle blinds, orifice flanges)
Special coatings (PTFE lining, rubber lining, epoxy coating)
Extra-heavy wall thickness for high-pressure applications
Compact flanges for offshore weight reduction
Insulation sets (gaskets, sleeves, washers for cathodic protection isolation)

Typical lead time for custom flanges: 6-8 weeks from drawing approval including manufacturing, testing, and inspection. Prototype quantities available for Turkish customer testing before full production runs.

Q7. What quality inspections can be arranged at Turkish ports or facilities?

Third-party inspection is available at multiple stages:
At Manufacturer’s Works (India):

Witness raw material verification
Witness heat treatment process
Dimensional inspection
Mechanical testing witness
NDT examination
Final release inspection

Upon Arrival in Turkey:

Port inspection at Ambarlı, Mersin, Izmir (material verification, external condition, quantity)
Destination inspection at Turkish customer facility (receiving inspection, dimensional verification)
Installation inspection (fit-up verification, weld preparation examination)

Inspection agencies with Turkey operations: SGS Turkey, Bureau Veritas Turkey, TÜV SÜD Turkey, Intertek Turkey, DNV Turkey. Inspection reports provided in English and Turkish when specified.