DIPTI METAL INDUSTRIES
ASTM A182 F304N Forged Stainless Steel Flanges: Largest Global F304N Manufacturer in Mumbai, India, F304N Supplier & F304N Exporter
Dipti Metal Industries is your premier worldwide ASTM A182 F304N Flange Manufacturer in Mumbai, India, Global A182 F304N Supplier, Dealer, and Top A182 F304N Stockist and Exporter from India. ASTM A182 F304N is a Nitrogen-strengthened version of standard 304 stainless steel. By adding 0.10% to 0.16% Nitrogen, the material achieves significantly higher yield and tensile strength while maintaining the excellent ductility and general corrosion resistance of austenitic steel. We manufacture a comprehensive range of F304N Slip On Flanges, F304N Weld Neck Flanges, F304N Blind Flanges, and F304N Socket Weld Flanges. Available in sizes 1/2″ to 48″, Classes 150 to 2500. As a leading F304N Flange Manufacturer in Mumbai, we guarantee superior forged structural integrity and 100% material compliance for high-stress industrial projects.
Dipti Metal Industries: Expertise in High-Strength ASTM A182 F304N Forged Flanges
Dipti Metal Industries stands as the largest global ASTM A182 F304N Manufacturer in Mumbai, India. While standard 304 is the most versatile stainless steel, the F304N grade (UNS S30451) is specifically engineered for applications that demand higher mechanical strength. By alloying Nitrogen into the austenitic matrix, we are able to provide ASTM A182 F304N Forged Flanges that offer nearly 1.5 times the yield strength of standard 304. This allows for thinner wall sections and lighter piping components without compromising safety or structural stability in high-pressure systems.
We maintain a significant inventory as the top F304N Flange Stockist in India, supporting global projects in heavy industrial equipment and structural pressure systems. Our forging process refines the grain structure, providing superior impact toughness even at low temperatures. Whether your project requires F304N Slip On (SORF) flanges or high-pressure F304N Weld Neck (WNRF) flanges, our Mumbai-based facility ensures precision manufacturing as per ASME B16.5 and B16.47 standards. As a global F304N Exporter from India, we provide full traceability with Mill Test Certificates according to EN 10204 3.1, verifying the precise Nitrogen and Chromium balance required for high-strength integrity.
Need the standard low-carbon version for welding ease? See our ASTM A182 F304L Flanges or for molybdenum-bearing high strength, see F316N Flanges.
ASTM A182 F304N Flange Standards & Design Codes
| Specification | Material Grade | Types Available | Pressure Class |
|---|---|---|---|
| ASME B16.5 | F304N / UNS S30451 | SORF, WNRF, BLRF, SWRF | Class 150 to 2500 |
| ASME B16.47 | F304N / UNS S30451 | Series A & B (Large Diameter) | Class 75 to 900 |
| EN 1092-1 | 1.4311 (Approx. Eq.) | Plate, Blind, Neck, Loose | PN 6 to PN 400 |
| JIS B2220 | SUS 304N1 / 304N2 | SOP, SOH, BL | 5K to 30K |
| MSS SP-44 | F304N Forgings | High-Pressure Pipeline Flanges | DN 650 to DN 1500 |
F304N Technical Specifications & Material Characteristics
Chemical Composition (F304N)
- Nitrogen (N): 0.10 - 0.16% (Strengthening)
- Chromium (Cr): 18.0 - 20.0%
- Nickel (Ni): 8.0 - 10.5%
- Carbon (C): 0.08% Max
- Manganese (Mn): 2.0% Max
Mechanical Properties
- Tensile Strength: 550 MPa (Min)
- Yield Strength: 240 MPa (Min)
- Elongation: 30% (Min)
- Hardness (Brinell): 201 Max
- Yield (0.2% Offset): ~1.2x Higher than 304
Industrial Applications of ASTM A182 F304N Flanges
The Nitrogen-strengthened chemistry makes Dipti Metal's F304N flanges essential for:
- High-Pressure Process Piping
- Heavy Industrial Tanks & Vessels
- Structural Piping Components
- Chemical Reactor Internals
- Desalination Plant Infrastructure
- Offshore Drilling Equipment
- Oil & Gas Gathering Systems
- Aerospace Structural Forgings
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 F304N Global Customer Ratings
Based on 120 Verified Global Reviews
High Strength
The F304N flanges met all our load-bearing requirements for a structural gas assembly in Singapore.
Nitrogen Analysis
Strict adherence to 0.12% avg Nitrogen content verified by every batch’s Mill Test Report.
"Supplied high-quality F304N WNRF flanges for our project in Singapore. Outstanding strength-to-weight ratio compared to standard 304."
"Best F304N manufacturer from Mumbai. The Nitrogen strengthened SORF flanges for our gas plant in UAE were delivered with full 3.1 documentation."
Why Choose Dipti Metal Industries for F304N Flanges?
- Largest Global F304N Manufacturer in Mumbai: Massive production capacity for specialized nitrogen-added grades.
- Strength Guarantee: Guaranteed higher yield strength compliance through precise nitrogen alloying.
- Precision Forged Integrity: Refined grain structure providing better fatigue resistance than standard casting.
- Solution Annealed Quality: Every flange undergoes documented heat treatment for peak grain structure.
- Global Certification: Every shipment includes MTC as per EN 10204 3.1 and supports TPI handling.
Request a Quote for ASTM A182 F304N Flanges
F304N Flanges — Frequently Asked Questions
The primary advantage is increased mechanical strength. Nitrogen is a potent interstitial strengthener in austenitic stainless steels. F304N provides significantly higher yield strength (approx. 240 MPa min) than standard F304 (approx. 205 MPa min), while maintaining the same corrosion resistance.
Yes, F304N maintains its austenitic structure and excellent ductility at cryogenic temperatures. However, for specialized cryogenic welding, the F304LN (Low Carbon Nitrogen) grade is often preferred to prevent sensitization.
Yes, F304N is weldable using standard austenitic stainless steel welding techniques. However, because it has standard carbon levels (up to 0.08%), long periods of exposure during welding can lead to sensitization. For heavy-gauge welding without post-weld annealing, 304LN is often utilized.
Contact Dipti Metal Industries — Your F304N Flange Manufacturer
High-strength export specialists: Mill-certified F304N components • Line-wise tagging • Global export documentation. We are a premier manufacturer in Mumbai, India.