DIPTI METAL INDUSTRIES
ASTM A182 F347 Forged Stainless Steel Flanges: Largest Global F347 Manufacturer in Mumbai, India, F347 Supplier & F347 Exporter
Dipti Metal Industries is your premier worldwide ASTM A182 F347 Flange Manufacturer in Mumbai, India, Global A182 F347 Supplier, Dealer, and Top A182 F347 Stockist and Exporter from India. ASTM A182 F347 is a Niobium-stabilized austenitic stainless steel engineered for high-temperature service where intergranular corrosion is a concern. By adding Niobium (Columbium), the material is protected against chromium carbide precipitation during welding and exposure to temperatures up to 816°C. We manufacture a comprehensive range of F347 Slip On Flanges, F347 Weld Neck Flanges, F347 Blind Flanges, and F347 Socket Weld Flanges. Available in sizes 1/2″ to 48″, pressure ratings from Class 150 to 2500. As a leading F347 Flange Manufacturer in Mumbai, we ensure exceptional forging structural safety and 100% material traceability.
Dipti Metal Industries: Excellence in Niobium-Stabilized ASTM A182 F347 Forged Flanges
Dipti Metal Industries stands as the largest global ASTM A182 F347 Manufacturer in Mumbai, India. ASTM A182 F347 (UNS S34700) is the "Niobium-stabilized" equivalent to Type 304 stainless steel. In standard austenitic steels, welding or high-temperature exposure leads to chromium carbide precipitation at the grain boundaries, which causes intergranular corrosion (sensitization). The addition of Niobium (Columbium) in F347 reacts with carbon to form stable niobium carbides, keeping chromium in solution and ensuring that our ASTM A182 F347 Forged Flanges retain their maximum corrosion resistance even in high-heat zones.
We maintain a significant inventory as the leading F347 Flange Stockist in India. F347 forged components are highly valued in refineries, power generation, and aerospace industries for their excellent creep strength and resistance to weld decay. Whether your project requires F347 Slip On (SORF) flanges or high-pressure F347 Weld Neck (WNRF) flanges for refinery cracking units, our Mumbai-based facility produces parts that meet rigorous ASME B16.5 and B16.47 specifications. As a global F347 Exporter from India, we provide full EN 10204 3.1 certification, confirming the precise Niobium content (Min 10 x C) required for true stabilization.
Looking for the titanium-stabilized alternative? See our ASTM A182 F321 Flanges or for high-carbon high-temp service, explore F347H Flanges.
ASTM A182 F347 Flange Standards & Design Codes
| Specification | Standard Description | Flange Types | Pressure Class |
|---|---|---|---|
| ASTM A182 | Forged SS Components for High-Temp Service | F347 / UNS S34700 | Standard Spec |
| ASME B16.5 | Pipe Flanges and Flanged Fittings | WN, SO, BL, SW, LJ, Threaded | Class 150# to 2500# |
| ASME B16.47 | Large Diameter Steel Flanges (26"-60") | Series A (MSS SP-44) & B (API 605) | Class 75# to 900# |
| EN 1092-1 | European Flange Standards | PN 6 to PN 160 | Type 01, 05, 11, 12 |
| JIS B2220 | Japanese Industrial Standard Flanges | 5K, 10K, 16K, 20K, 30K | SOP, SOH, BL |
F347 Technical Specifications & Chemical Properties
Chemical Composition (F347)
- Niobium (Nb): 10 x Carbon Min / 1.10% Max
- Chromium (Cr): 17.0 - 19.0%
- Nickel (Ni): 9.0 - 12.0%
- Carbon (C): 0.08% Max
- Manganese (Mn): 2.0% Max
Mechanical Properties
- Tensile Strength: 515 MPa (Min)
- Yield Strength: 205 MPa (Min)
- Elongation: 30% (Min)
- Hardness (HBW): 201 Max
- Operating Temp: Up to 816°C
Industrial Applications of ASTM A182 F347 Flanges
Niobium stabilization makes Dipti Metal's F347 flanges essential for high-heat zones in corrosive media:
- Refinery Fluid Catalytic Cracking (FCCU)
- Petrochemical High-Temp Reactors
- Aircraft Exhaust Manifolds
- Steam Superheaters & Boiler Piping
- Chemical Processing Heat Exchangers
- Nuclear Power Plant Components
- Exhaust Gas Recovery Systems
- High-Pressure Autoclaves
Our Global Reach: Serving Countries Worldwide
DIPTI Metal Industries is a truly global exporter, proudly supplying certified industrial piping materials, fasteners, gaskets, and valves to a vast network of clients across every continent. Our extensive logistics capabilities ensure reliable and on-time delivery to major industrial hubs and ports around the world.
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad
- UAE: Dubai, Abu Dhabi, Sharjah, Jebel Ali
- Saudi Arabia: Riyadh, Jeddah, Dammam, Jubail
- Qatar: Doha, Ras Laffan
- Oman: Muscat, Sohar, Salalah
- Kuwait: Kuwait City, Ahmadi
- Bahrain: Manama, Sitra
- Iraq: Baghdad, Basra, Erbil
- Iran: Tehran, Bandar Abbas, Isfahan
- Singapore: Singapore City
- Malaysia: Kuala Lumpur, Port Klang, Johor Bahru
- Indonesia: Jakarta, Surabaya, Balikpapan
- Thailand: Bangkok, Rayong, Laem Chabang
- Vietnam: Ho Chi Minh City, Hanoi, Haiphong
- Philippines: Manila, Cebu, Davao
- China: Shanghai, Beijing, Guangzhou, Tianjin, Qingdao
- Japan: Tokyo, Osaka, Nagoya, Yokohama
- South Korea: Seoul, Busan, Ulsan, Incheon
- Bangladesh: Dhaka, Chittagong
- Sri Lanka: Colombo, Kandy
- Myanmar: Yangon, Mandalay
- Kazakhstan: Nur-Sultan, Almaty, Atyrau
- Uzbekistan: Tashkent, Samarkand
- Turkmenistan: Ashgabat, Turkmenbashi
- Azerbaijan: Baku, Ganja
- Jordan: Amman, Aqaba
- Lebanon: Beirut, Tripoli
- Syria: Damascus, Aleppo (subject to trade regulations)
- Yemen: Sana'a, Aden (subject to trade regulations)
- Mongolia: Ulaanbaatar
- Nepal: Kathmandu
- Cambodia: Phnom Penh
- Laos: Vientiane
- Brunei: Bandar Seri Begawan
- Taiwan: Taipei, Kaohsiung
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf, Berlin
- United Kingdom: London, Aberdeen, Manchester, Glasgow, Liverpool
- Netherlands: Rotterdam, Amsterdam, The Hague
- France: Paris, Marseille, Lyon, Le Havre, Bordeaux
- Italy: Milan, Rome, Genoa, Venice, Naples
- Spain: Madrid, Barcelona, Valencia, Bilbao
- Russia: Moscow, Saint Petersburg, Kazan, Novorossiysk
- Poland: Warsaw, Krakow, Gdansk
- Belgium: Antwerp, Brussels, Ghent
- Sweden: Stockholm, Gothenburg, Malmö
- Norway: Oslo, Bergen, Stavanger, Trondheim
- Finland: Helsinki, Tampere, Turku
- Denmark: Copenhagen, Aarhus, Odense
- Portugal: Lisbon, Porto, Sines
- Greece: Athens, Thessaloniki, Patras
- Turkey: Istanbul, Ankara, Izmir
- Switzerland: Zurich, Geneva, Basel
- Austria: Vienna, Salzburg, Linz
- Ireland: Dublin, Cork
- Czech Republic: Prague, Brno
- Romania: Bucharest, Constanta
- Ukraine: Kyiv, Odesa (subject to current events)
- Hungary: Budapest, Debrecen
- Croatia: Zagreb, Split
- Serbia: Belgrade, Novi Sad
- Bulgaria: Sofia, Varna
- Slovakia: Bratislava, Kosice
- Lithuania: Vilnius, Kaunas
- Latvia: Riga, Liepāja
- Estonia: Tallinn, Tartu
- Slovenia: Ljubljana, Maribor
- Cyprus: Nicosia, Limassol
- Malta: Valletta, Birkirkara
- Iceland: Reykjavik
- Luxembourg: Luxembourg City
- Belarus: Minsk, Gomel (subject to trade regulations)
- Bosnia and Herzegovina: Sarajevo
- North Macedonia: Skopje
- Albania: Tirana, Durres
- Moldova: Chisinau
- Montenegro: Podgorica
- Kosovo: Pristina
- USA: Houston, Los Angeles, New York, Chicago, New Orleans, Philadelphia
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal, Halifax
- Mexico: Mexico City, Monterrey, Guadalajara, Veracruz, Ciudad del Carmen
- Panama: Panama City, Colón
- Trinidad & Tobago: Port of Spain, San Fernando
- Costa Rica: San José, Puerto Limón
- Guatemala: Guatemala City, Puerto Quetzal
- Honduras: Tegucigalpa, Puerto Cortés
- Nicaragua: Managua, Corinto
- El Salvador: San Salvador, Acajutla
- Jamaica: Kingston, Montego Bay
- Dominican Republic: Santo Domingo, Santiago
- Cuba: Havana, Santiago de Cuba (subject to trade regulations)
- Bahamas: Nassau, Freeport
- Barbados: Bridgetown
- Puerto Rico: San Juan
- Belize: Belize City
- Brazil: São Paulo, Rio de Janeiro, Salvador, Curitiba, Santos
- Argentina: Buenos Aires, Cordoba, Rosario, Bahia Blanca
- Chile: Santiago, Valparaíso, Concepción, Antofagasta
- Colombia: Bogotá, Medellín, Cartagena, Barranquilla
- Peru: Lima, Callao, Arequipa, Trujillo
- Venezuela: Caracas, Maracaibo, Puerto La Cruz (subject to trade regulations)
- Ecuador: Quito, Guayaquil, Manta
- Bolivia: La Paz, Santa Cruz, Cochabamba
- Uruguay: Montevideo, Salto
- Paraguay: Asunción, Ciudad del Este
- Guyana: Georgetown
- Suriname: Paramaribo
- French Guiana: Cayenne
- South Africa: Johannesburg, Durban, Cape Town, Sasolburg
- Nigeria: Lagos, Port Harcourt, Abuja, Kano
- Egypt: Cairo, Alexandria, Port Said, Suez
- Algeria: Algiers, Oran, Skikda
- Morocco: Casablanca, Rabat, Tangier
- Angola: Luanda, Lobito
- Kenya: Nairobi, Mombasa
- Tanzania: Dar es Salaam, Mwanza
- Ghana: Accra, Tema, Kumasi
- Mozambique: Maputo, Beira
- Cameroon: Douala, Yaoundé
- Libya: Tripoli, Benghazi (subject to current events)
- Tunisia: Tunis, Sfax
- Ethiopia: Addis Ababa, Dire Dawa
- Côte d'Ivoire: Abidjan
- Senegal: Dakar
- Zambia: Lusaka, Ndola
- Zimbabwe: Harare, Bulawayo
- DR Congo: Kinshasa, Lubumbashi
- Sudan: Khartoum, Port Sudan (subject to current events)
- Uganda: Kampala, Entebbe
- Gabon: Libreville, Port-Gentil
- Mauritius: Port Louis
- Reunion: Saint-Denis
- Djibouti: Djibouti City
- Eritrea: Asmara, Massawa
- Somalia: Mogadishu (subject to current events)
- Australia: Sydney, Melbourne, Perth, Brisbane, Adelaide, Darwin
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae
- Fiji: Suva, Nadi
- New Caledonia: Nouméa
- Solomon Islands: Honiara
- Vanuatu: Port Vila
- Samoa: Apia
- Tonga: Nukuʻalofa
- Kiribati: South Tarawa
- Micronesia: Palikir
- Marshall Islands: Majuro
- Palau: Ngerulmud
- Tuvalu: Funafuti
- Nauru: Yaren
ASTM A182 F347 Global Customer Ratings
Based on 138 Verified Global Reviews
Niobium Check
Every F347 batch verified for Niobium content to ensure zero intergranular decay after high-heat service.
Export Handling
F347 SORF and Weld Neck flanges shipped in reinforced seaworthy crates to Italy and USA.
"Supplied high-integrity F347 flanges for our petrochemical refinery overhaul in Italy. Perfect material stability and structural safety."
"Best F347 manufacturer from Mumbai. The Niobium-stabilized SORF flanges for our chemical project in Singapore arrived with impeccable certification."
Why Choose Dipti Metal Industries for F347 Flanges?
- Largest Global F347 Manufacturer in Mumbai: Massive production capacity and stock availability for urgent projects.
- Niobium Stabilization Guarantee: Guaranteed Nb:C ratio compliance to prevent intergranular sensitization (weld decay).
- Advanced Forging Integrity: Superior structural strength and fatigue resistance compared to cast components.
- Heat Treatment Precision: Solution annealing in automated furnaces for peak mechanical performance at heat.
- Global Certification: Every shipment includes MTC as per EN 10204 3.1/3.2 and supports TPI by Lloyd's or TUV.
Request a Quote for ASTM A182 F347 Flanges
Contact the largest global ASTM A182 F347 Manufacturer in Mumbai today for competitive pricing and project-specific technical support.
F347 Flanges — Frequently Asked Questions
Standard 304 stainless steel is prone to sensitization (carbide precipitation) in the temperature range of 427°C - 816°C. F347, through the addition of Niobium, prevents this sensitization, allowing the flange to remain corrosion-resistant after welding or long-term high-temperature exposure.
Yes, F347 offers slightly superior resistance to strong oxidizing environments and high-temperature aqueous solutions compared to F321. It is often the preferred choice for petrochemical and refinery acids at heat.
F347H is the high-carbon version (0.04 - 0.10%). It is specifically engineered to provide even higher creep strength at temperatures exceeding 537°C compared to standard F347.
Contact Dipti Metal Industries — Your F347 Flange Manufacturer
High-temperature project specialists: Mill-certified F347 components • Line-wise tagging • Global export documentation. We are a premier manufacturer in Mumbai, India.