DIPTI METAL INDUSTRIES
DIPTI® Stainless Steel Welded Tubes Manufacturer & Pipes Exporter: Global Supplier of ASTM A249/A312, EN 10217-7 Grades
Dipti Metal Industries is a Leading Stainless Steel Welded Tubes Manufacturer and Biggest Stainless Steel Welded Tubes Exporter of high-integrity Stainless Steel Welded Tubes and pipes from Mumbai, India, serving as your Global Stainless Steel Welded Tubes Supplier for petrochemical, power, and desalination projects. We specialize in grades like TP304L stainless steel pipe manufacturer, TP316L stainless steel pipe exporter, duplex 2205 stainless steel welded pipe, and super duplex 2507 (UNS S32750/S32760) products. Our extensive inventory includes 304L stainless steel welded tube and 316L stainless steel welded pipe conforming to ASTM A312, ASTM A249 welded boiler tubes manufacturer, and EN 10217-7 welded stainless steel pipe standards. We offer competitive 304L stainless steel welded tube price per kg with rapid worldwide delivery to major industrial markets like Saudi Arabia, UAE, Qatar, and the USA. Our focus is on providing reliable stainless steel EFW pipe manufacturer and stainless steel ERW pipe manufacturer products, ensuring perfect dimensional stability and compliance for all stainless steel welded pipe for oil and gas projects.
Global Standards for Stainless Steel Welded Pipes & Tubes
As a Stainless Steel Welded Tubes Manufacturer and Stainless Steel Welded Pipes Exporter, all our products comply with major international specifications, ensuring quality and global compatibility. This includes adherence to the toughest standards for high-pressure and corrosive service applications like stainless steel welded pipe for power plants and stainless steel welded condenser tubes.
📌 ASTM / ASME (USA) - Pressure & Mechanical
📌 EN / DIN (Europe) - Pressure & Structural
📌 JIS (Japan) & GB (China) - Asia Supply
📌 Other Global & Legacy Standards
Worldwide Stainless Steel Grade Equivalents (Welded Pipes & Tubes)
Navigating global projects requires accurate cross-referencing. Below are the international equivalents for our most commonly supplied welded stainless steel grades. Click on the UNS or Grade to see related welding material options and pricing (e.g. 304 stainless steel welded pipe price, 316L stainless steel welded tube price, 304L stainless steel welded pipe dimensions).
Austenitic Stainless Steel – Standard Grades
304 / 304L (UNS S30400 / S30403)
- EN / DIN: 1.4301 / 1.4307
- JIS: SUS 304 / SUS 304L
- Related Filler Metal: ER308L
316 / 316L (UNS S31600 / S31603)
- EN / DIN: 1.4401 / 1.4404
- JIS: SUS 316 / SUS 316L
- Related Filler Metal: ER316L
321 / 347 Stabilized Grades
- 321 (TP321): EN 1.4541 (X6CrNiTi18-10)
- 347 (TP347): EN 1.4550 (X6CrNiNb18-10)
- Related Filler Metal: ER347
Duplex & Ferritic Stainless Steel (Welded Tubes for Corrosion)
2205 Duplex (UNS S32205 / S31803)
- EN / DIN: 1.4462
- Application: Offshore, Corrosive Service
- Related Filler Metal: ER2209
Super Duplex 2507 (UNS S32750 / S32760)
- EN / DIN: 1.4410
- Application: Desalination, Severe Chloride Service
- Related Filler Metal: ER2594
Detailed Material Comparison Table (ASTM A213/A312 Pipe/Tube Grades)
This table provides comprehensive cross-references for common stainless steel and alloy steel pipe/tube grades (per A213/A312) across major global standards including JIS, DIN, BS, AFNOR, and UNI. This data is essential for engineering and procurement matching.
| ASTM Standard | UNS No. | KOREA/JAPANESE | GERMAN | BRITISH | FRENCH | ITALIAN | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KS/JIS Symbol | JIS Number | DIN Type | Material Number | Number | B.S. Number | B.S. Grade | AFNOR Type | AFNOR Number | UNI Type | UNI Number | ||
| A 213 Seamless Alloy Steel Boiler and Heat Exchanger Tubes / A 312 Stainless Pipes |
K41545 (T5) | STHA 24 / STBA 25 | D3572 / G3462 | 12 CrMo 19 5 | 1.7362 | (3a) | 3606 | 625 | (30) | TU12C / A49-213 | (3a)(32) | Dalmine 234(3b) |
| K11597 (T11) | STHA 22 / STBA 24 | D3572 / G3462 | 13 CrMo 44 | 1.7335 | (8)(32) | 3606 | 621 | (30) | 5.05 | (3b)(32) | Dalmine 227(3b) | |
| K11562 (T12) | STHA 21 / STBA 23 | D3572 / G3462 | 13 CrMo 44 | 1.7175 | (32) | 3606 | 620 | (30) | TU 10 CD 5.05 | (3b)(32) | Dalmine 235(3b) | |
| K21590 (T22) | STMA 23 / STS 24 | D3572 / G3462 | 10 CrMo 9 10 | 1.7380 | (32) | 3606 | 622 | (30)(32) | TU 12 CD 9.10 | (3a)(32) | Dalmine 5462 | |
| S30400 (TP 304) | STS 304 / SUS 304TB | D3577 / G3463 | X5 CrNi 18 9 | 1.4301 | (3b) | 3606 | 304S31 | (30) | Z 6 CN 18.09 | A49-218 | X5 CrNi 18 10 | |
| S30403 (TP 304L) | STS 304LTB / SUS 304LTB | D3577 / G3463 | X2 CrNi 18 9 | 1.4306 | (3b) | 3606 | 304S11 | (30) | Z 2 CN 18.09 | A49-218 | X2 CrNi 18 11 | |
| S31600 (TP 316) | STS 316 / SUS 316TB | D3577 / G3463 | X5 CrNiMo 17 12 | 1.4401 | (3b) | 3606 | 316S31 | (30) | Z 6 CND 17.12 | A49-218 | X5 CrNiMo 17 12 | |
| S31603 (TP 316L) | STS 316LTB / SUS 316LTB | D3577 / G3463 | X2 CrNiMo 17 12 | 1.4404 | (3b) | 3606 | 316S11 | (30) | Z 2 CND 17.12 | A49-218 | X2 CrNiMo 17 12 | |
| S32100 (TP 321) | STS 321 / SUS 321TB | D3577 / G3463 | X10 CrNiTi 18 10 | 1.4541 | (3b) | 3606 | 321S22 | (30) | Z 6 CND 17.13 | A49-218 | X6 CrNiTi 18 11 | |
| S34700 (TP 347) | STS 347 / SUS 347TB | D3577 / G3463 | X10 CrNiNb 18 9 | 1.4550 | (3b) | 3606 | 347S17 | (30) | Z 6 CN Nb 18.11 | A49-218 | X6 CrNiNb 18 11 | |
Note: The alloy steel Grades (T5, T11, T12, T22) listed are typically manufactured via the seamless method, referencing corresponding pipe fittings standards.
Welding Processes & Corresponding Standards for Pipes & Tubes
As a leading Stainless Steel Welded Tubes Manufacturer, the integrity and application of our products depend on strict adherence to welding process standards. We offer various welding options including stainless steel ERW pipe manufacturer capabilities and stainless steel EFW pipe manufacturer services for large diameters.
| Welding Type | Full Name | Typical Product Standards |
|---|---|---|
| ERW | Electric-Resistance Welded | ASTM A312, EN 10296-2, JIS G3459 (304 ERW Pipe Supplier, 316L ERW Tubes) |
| EFW | Electric-Fusion Welded | ASTM A358, ASTM A928 (Used for large diameters/heavy wall - ASTM A358 electric fusion welded stainless pipe) |
| LSAW | Long-Seam Submerged Arc Welded | API 5L, EN 10217-7 (Longitudinally Welded Stainless Steel Pipe) |
| SSAW | Spiral Submerged Arc Welded | EN 10224, ISO 3183 (Spiral Welded Stainless Steel Pipe, SSAW Pipe Supplier) |
| High-Finish | Decorative/Sanitary Tubes | ASTM A554 (Sanitary, Rectangular/Square Tubes) |
We stock common sizes like schedule 40 stainless steel welded pipe and schedule 10 stainless steel welded pipe, adhering to precise 304 stainless steel welded pipe dimensions. We also supply Welding Electrodes and Rods for field joining.
Welded Pipes & Tubes Global Export Markets: We are the Biggest Manufacturer & Top Exporter Supplying from Mumbai, India
Dipti Metal Industries is a proud Stainless Steel Welded Tubes Exporter, Largest Exporter, and Stainless Steel Welded Pipes Distributors. We serve as a reliable Stainless Steel Welded Tubes Supplier in India and a major Stainless Steel Welded Pipe Exporter from Mumbai, ensuring timely and compliant delivery to major industrial hubs across over 190 countries globally. We are an international exporter of stainless steel welded tubes.
Explore Our Extensive Global Reach (Illustrative Markets)
- USA: Houston, Los Angeles, New York, Chicago, New Orleans (Stainless Steel Welded Pipe Exporter to USA)
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal (Stainless Steel Welded Pipe Exporter to Canada)
- Mexico: Mexico City, Monterrey, Guadalajara, Veracruz (Stainless Steel Welded Pipe Exporter to Mexico)
- Panama: Panama City, Colón
- Trinidad and Tobago: Port of Spain, San Fernando
- Costa Rica: San José, Puerto Limón
- Guatemala: Guatemala City, Puerto Quetzal
- Honduras: Tegucigalpa, San Pedro Sula
- Nicaragua: Managua, Corinto
- El Salvador: San Salvador, Acajutla
- Jamaica: Kingston, Montego Bay
- Dominican Republic: Santo Domingo, Santiago
- Cuba: Havana, Santiago de Cuba
- Bahamas: Nassau, Freeport
- Barbados: Bridgetown
- Haiti: Port-au-Prince
- Puerto Rico: San Juan
- Belize: Belize City
- Brazil: São Paulo, Rio de Janeiro, Salvador, Curitiba (Stainless Steel Welded Pipe Exporter to Brazil)
- Argentina: Buenos Aires, Cordoba, Rosario
- Chile: Santiago, Valparaíso, Concepción, Antofagasta
- Colombia: Bogotá, Medellín, Cartagena, Barranquilla
- Peru: Lima, Callao, Arequipa, Trujillo
- Venezuela: Caracas, Maracaibo, Puerto La Cruz, Valencia
- Ecuador: Quito, Guayaquil, Manta, Esmeraldas
- Bolivia: La Paz, Santa Cruz, Cochabamba
- Uruguay: Montevideo, Salto
- Paraguay: Asunción, Ciudad del Este
- Guyana: Georgetown
- Suriname: Paramaribo
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf, Berlin (Stainless Steel Welded Pipe Exporter to Germany)
- United Kingdom: London, Manchester, Aberdeen, Glasgow, Liverpool (Stainless Steel Welded Pipe Exporter to UK)
- Netherlands: Rotterdam, Amsterdam, The Hague
- France: Paris, Marseille, Lyon, Le Havre, Bordeaux
- Italy: Milan, Rome, Genoa, Venice, Naples (Stainless Steel Welded Pipe Exporter to Italy)
- Spain: Madrid, Barcelona, Valencia, Bilbao, Seville
- Russia: Moscow, Saint Petersburg, Kazan, Novorossiysk, Sochi
- Poland: Warsaw, Krakow, Gdańsk, Wrocław
- Belgium: Antwerp, Brussels, Ghent, Zeebrugge
- Sweden: Stockholm, Gothenburg, Malmö, Uppsala
- Norway: Oslo, Bergen, Stavanger, Trondheim
- Finland: Helsinki, Tampere, Turku, Oulu
- Turkey: Istanbul, Ankara, Izmir, Adana
- Portugal: Lisbon, Porto, Sines
- Greece: Athens, Thessaloniki, Patras
- Ireland: Dublin, Cork
- Austria: Vienna, Salzburg, Linz
- Switzerland: Zurich, Geneva, Basel, Bern
- Czech Republic: Prague, Brno, Ostrava
- Romania: Bucharest, Cluj-Napoca, Constanța
- Ukraine: Kyiv, Kharkiv, Odesa, Lviv
- Hungary: Budapest, Debrecen, Szeged
- Croatia: Zagreb, Split, Rijeka
- Denmark: Copenhagen, Aarhus, Odense
- Slovakia: Bratislava, Košice, Žilina
- Lithuania: Vilnius, Kaunas, Klaipėda
- Latvia: Riga, Daugavpils, Liepāja
- Estonia: Tallinn, Tartu, Narva
- Bulgaria: Sofia, Plovdiv, Varna
- Serbia: Belgrade, Novi Sad
- Slovenia: Ljubljana, Maribor
- Cyprus: Nicosia, Limassol
- Malta: Valletta, Birkirkara
- Saudi Arabia: Riyadh, Jeddah, Dammam, Al Khobar, Jubail (Welded Pipe Exporter to Saudi Arabia)
- UAE: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah (Welded Tubes for UAE from India)
- Qatar: Doha, Ras Laffan (Welded Pipe Exporter to Qatar)
- Oman: Muscat, Sohar, Salalah (Welded Pipe Exporter to Oman)
- Kuwait: Kuwait City, Ahmadi
- Bahrain: Manama, Sitra
- Iraq: Baghdad, Basra, Erbil
- Iran: Tehran, Mashhad, Bandar Abbas, Isfahan
- India: Mumbai (Welded Pipe Supplier in India), Delhi, Chennai, Kolkata, Bangalore, Hyderabad (Local Markets)
- China: Shanghai, Guangzhou, Tianjin, Shenzhen, Qingdao, Hong Kong
- Japan: Tokyo, Osaka, Nagoya, Yokohama, Kobe
- South Korea: Seoul, Busan, Ulsan, Incheon, Daegu
- Indonesia: Jakarta, Surabaya, Balikpapan, Medan
- Singapore: Singapore City (Welded Pipes Supplier in Singapore)
- Malaysia: Kuala Lumpur, Johor Bahru, Port Klang, Penang (Welded Pipes Supplier in Malaysia)
- Thailand: Bangkok, Rayong, Laem Chabang, Chiang Mai
- Vietnam: Ho Chi Minh City, Hanoi, Da Nang, Haiphong
- Philippines: Manila, Cebu, Davao, Batangas
- Bangladesh: Dhaka, Chittagong, Khulna
- Pakistan: Karachi, Lahore, Islamabad, Faisalabad
- Taiwan: Taipei, Kaohsiung, Taichung
- Myanmar: Yangon, Mandalay
- Sri Lanka: Colombo, Kandy
- Kazakhstan: Nur-Sultan, Almaty, Atyrau
- Uzbekistan: Tashkent, Samarkand, Bukhara
- Jordan: Amman, Irbid, Zarqa
- Lebanon: Beirut, Tripoli
- Mongolia: Ulaanbaatar, Erdenet
- Nepal: Kathmandu, Biratnagar
- Yemen: Sana'a, Aden
- South Africa: Johannesburg, Durban, Cape Town, Sasolburg (Welded Pipe Exporter to South Africa)
- Nigeria: Lagos, Port Harcourt, Abuja, Kano (Welded Pipe Exporter to Nigeria)
- 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
- Tunisia: Tunis, Sfax
- Ethiopia: Addis Ababa, Dire Dawa
- Australia: Sydney, Melbourne, Perth, Brisbane, Darwin, Adelaide
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae
- Fiji: Suva, Nadi
- Zambia: Lusaka, Ndola
- Zimbabwe: Harare, Bulawayo
- Namibia: Windhoek, Walvis Bay
- Democratic Republic of Congo: Kinshasa, Lubumbashi
- Cote d'Ivoire: Abidjan
- Senegal: Dakar
- Mali: Bamako
- Malawi: Lilongwe, Blantyre
- Mauritius: Port Louis
- Reunion: Saint-Denis
Get a Quote Today for Your Stainless Steel Welded Pipe & Tube Requirements!
Are you searching to buy ASTM A312 Welded Pipe, EN 10217-7 Tube, or confirm the 304 stainless steel welded pipe price? Contact Dipti Metal Industries, your expert Biggest Manufacturer and Stainless Steel Welded Tubes Global Supplier in Mumbai, India, today to discuss your specific requirements or to request a personalized, custom quote. Our team is dedicated to providing you with the most effective, safest, and most reliable DIPTI® Stainless Steel Piping Solutions.
Price guidance (non-binding): Prices are highly variable based on grade, standard (A312 vs A249), Schedule/Wall Thickness, welding method (ERW/EFW), quantity, and global delivery terms. We aim to provide the best 304L stainless steel welded tube price per kg. Final prices are quotation-based.
Stainless Steel Welded Pipes & Tubes — Frequently Asked Questions
Find answers to common questions about 304 stainless steel welded tube sizes, 316 stainless steel welded pipe dimensions, and applications like stainless steel welded sanitary tubes and 310S stainless steel heat resistant tube.
ASTM A312 covers general, seamless, and straight-seam welded pipes for high-temperature and general corrosive service. ASTM A249 specifically covers welded austenitic steel boiler, superheater, heat-exchanger, and condenser tubes, including applications like 304L stainless steel heat exchanger tubes and 316 stainless steel welded heat exchanger tubes.
Yes, our stainless steel welded pipes conform to rigorous standards like ASTM A312 and EN 10217-7. They are widely used for critical duties such as stainless steel welded pipe for petrochemical plants and stainless steel welded pipe for oil and gas projects. We supply both schedule 40 stainless steel welded pipe and schedule 10 stainless steel welded pipe to meet diverse pressure demands.
Duplex stainless steel (like UNS S32205) is an alloy with a mixed microstructure of approximately equal parts austenite and ferrite. It is specified for its superior strength and corrosion resistance, making our duplex 2205 stainless steel welded pipe ideal for applications like super duplex stainless steel welded pipe for desalination plants.
We are a leading 310S stainless steel welded tube manufacturer for high-temperature use, such as 310 stainless steel boiler tubes and 310S stainless steel furnace tubes. We also specialize in sanitary applications, offering stainless steel sanitary welded tubes and stainless steel hygienic welded tubing for dairy in grades like 304L and 316L, manufactured to ASTM A554 for a high finish.
Contact Dipti Metal Industries, Your Stainless Steel Welded Pipe Supplier in India & Worldwide Supplier
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality Stainless Steel Welded Pipes & Tubes from Mumbai, India, serving as a Stainless Steel Welded Tubes Dealer and Distributors.