DIPTI METAL INDUSTRIES
ASTM SB-338 Manufacturer, Supplier, & Exporter of Seamless & Welded Titanium Tubes
DIPTI METAL INDUSTRIES is a leading ASTM SB-338 Manufacturer, reliable ASTM SB-338 Supplier, and authorized ASTM SB-338 Exporter under the DIPTI® brand. We specialize in all 28 grades of Titanium and Titanium Alloy Tubes for critical Condensers and Heat Exchangers, providing seamless and welded options with full compliance to ASME SB-338 (and ASTM B338). As a trusted ASTM SB-338 Stockiest and ASTM SB-338 Importer with a robust supply chain, we offer competitive pricing and expert support across ASTM SB-338 in Mumbai and globally as a ASTM SB-338 Distributor.
Standards, Manufacturing, and Quality Assurance
Our ASTM SB-338 Seamless Tubes and ASTM SB-338 Welded Tubes are produced under strict quality control protocols, ensuring every length of tubing is suitable for critical heat transfer service. We are a certified ASTM SB-338 Manufacturer based in Mumbai, India.
Primary Manufacturing Methods
We offer tubes using the three methods permitted under SB-338.
- Seamless Tube (SMLS): Made from hollow billet via cold reducing or drawing. High integrity for pressure vessels (e.g., Gr 2H). We are a leading ASTM SB-338 Seamless Tubes Seamless Supplier.
- Welded Tube (WLD): Arc-welded from flat-rolled strip, followed by minimum stress relief. We are a primary SB338 Welded Tubes Manufacturer.
- Welded/Cold Worked (WCS): Welded tube is cold-worked to final size, giving properties closely matching seamless tubing.
Quality & Inspection (Required by SB-338)
We provide full documentation, including all required NDT reports, as a responsible ASTM SB-338 Supplier.
- Non-Destructive Testing: Ultrasonic Testing (UT) & Electromagnetic Testing.
- Leak Testing: Hydrostatic Test or Pneumatic Test.
- Mechanical Testing: Tension, Flattening, Reverse Flattening, and Flaring Tests.
- Certification: EN 10204 3.1 / TPI (Third Party Inspection) available on request.
All 28 ASTM SB-338 Grades Available from Stock
We are a highly reliable ASTM SB-338 Exporter and ASTM SB-338 Importer, stocking the full spectrum of unalloyed (CP) and alloy grades for specialized heat transfer applications.
| Grade Designation | Description / Key Composition | Primary Type |
|---|---|---|
| ASTM SB-338 Gr. 1 Tubes | Unalloyed titanium (CP) | CP Titanium |
| ASTM SB-338 Gr. 2 Tubes | Unalloyed titanium (CP) - The "workhorse" | CP Titanium |
| ASTM SB-338 Gr. 2H Tubes | Grade 2 with 58 ksi minimum UTS (Pressure Vessel Use) | CP Titanium |
| ASTM SB-338 Gr. 3 Tubes | Unalloyed titanium (CP) | CP Titanium |
| ASTM SB-338 Gr. 7 Tubes | Unalloyed titanium + 0.12 to 0.25 % palladium | Ti-Pd Alloy (High Corrosion Resistance) |
| ASTM SB-338 Gr. 7H Tubes | Grade 7 with 58 ksi minimum UTS (Pressure Vessel Use) | Ti-Pd Alloy |
| ASTM SB-338 Gr. 9 Tubes | Titanium alloy (3 % aluminum, 2.5 % vanadium) | Ti-Al-V Alloy (Medium Strength) |
| ASTM SB-338 Gr. 11 Tubes | Unalloyed titanium + 0.12 to 0.25 % palladium | Ti-Pd Alloy |
| ASTM SB-338 Gr. 12 Tubes | Titanium alloy (0.3 % molybdenum, 0.8 % nickel) | Ti-Mo-Ni Alloy (Crevice Corrosion Resistant) |
| ASTM SB-338 Gr. 13 Tubes | Titanium alloy (0.5 % nickel, 0.05 % ruthenium) | Ti-Ni-Ru Alloy |
| ASTM SB-338 Gr. 14 Tubes | Titanium alloy (0.5 % nickel, 0.05 % ruthenium) | Ti-Ni-Ru Alloy |
| ASTM SB-338 Gr. 15 Tubes | Titanium alloy (0.5 % nickel, 0.05 % ruthenium) | Ti-Ni-Ru Alloy |
| ASTM SB-338 Gr. 16 Tubes | Unalloyed titanium + 0.04 to 0.08 % palladium | Ti-Pd Alloy |
| ASTM SB-338 Gr. 16H Tubes | Grade 16 with 58 ksi minimum UTS (Pressure Vessel Use) | Ti-Pd Alloy |
| ASTM SB-338 Gr. 17 Tubes | Unalloyed titanium + 0.04 to 0.08 % palladium | Ti-Pd Alloy |
| ASTM SB-338 Gr. 18 Tubes | Ti alloy (3 % aluminum, 2.5 % vanadium) + 0.04 to 0.08 % palladium | Ti-Al-V-Pd Alloy |
| ASTM SB-338 Gr. 26 Tubes | Unalloyed titanium + 0.08 to 0.14 % ruthenium | Ti-Ru Alloy |
| ASTM SB-338 Gr. 26H Tubes | Grade 26 with 58 ksi minimum UTS (Pressure Vessel Use) | Ti-Ru Alloy |
| ASTM SB-338 Gr. 27 Tubes | Unalloyed titanium + 0.08 to 0.14 % ruthenium | Ti-Ru Alloy |
| ASTM SB-338 Gr. 28 Tubes | Ti alloy (3 % aluminum, 2.5 % vanadium) + 0.08 to 0.14 % ruthenium | Ti-Al-V-Ru Alloy |
| ASTM SB-338 Gr. 30 Tubes | Titanium alloy (0.3 % cobalt, 0.05 % palladium) | Ti-Co-Pd Alloy |
| ASTM SB-338 Gr. 31 Tubes | Titanium alloy (0.3 % cobalt, 0.05 % palladium) | Ti-Co-Pd Alloy |
| ASTM SB-338 Gr. 33 Tubes | Complex Alloy (Ni, Pd, Ru, Cr) | Complex Alloy |
| ASTM SB-338 Gr. 34 Tubes | Complex Alloy (Ni, Pd, Ru, Cr) | Complex Alloy |
| ASTM SB-338 Gr. 35 Tubes | Ti alloy (4.5% Al, 2% Mo, 1.6% V, 0.5% Fe, 0.3% Si) | High-Strength Alloy |
| ASTM SB-338 Gr. 36 Tubes | Titanium alloy (45 % niobium) | Ti-Nb Alloy |
| ASTM SB-338 Gr. 37 Tubes | Titanium alloy (1.5 % aluminum) | Ti-Al Alloy |
| ASTM SB-338 Gr. 38 Tubes | Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron) | Ti-Al-V-Fe Alloy |
Chemical Composition of ASTM SB-338 Tubes (Table 1)
We guarantee chemical composition as per Table 1 of the specification. This composition is key to performance in applications like desalination, where ASTM SB-338 Gr. 2 Tubes are common.
| Grade | Carbon, max. | Oxygen, range or max. | Nitrogen, max. | Hydrogen, max. | Iron, range or max. | Aluminum | Vanadium | Palladium | Ruthenium | Nickel | Molybdenum | Niobium | Other Elements, max. total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASTM SB-338 Gr. 1 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | - | - | - | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 2 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | - | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 2H | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | - | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 3 | 0.08 | 0.35 | 0.05 | 0.015 | 0.30 | - | - | - | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 7 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | 0.12-0.25 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 7H | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | 0.12-0.25 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 9 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.5-3.5 | 2.0-3.0 | - | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 11 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | - | - | 0.12-0.25 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 12 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | - | - | 0.6-0.9 | 0.2-0.4 | - | 0.4 | |
| ASTM SB-338 Gr. 13 | 0.08 | 0.10 | 0.03 | 0.015 | 0.20 | - | - | - | 0.04-0.06 | 0.4-0.6 | - | - | - | 0.4 |
| ASTM SB-338 Gr. 14 | 0.08 | 0.15 | 0.03 | 0.015 | 0.30 | - | - | - | 0.04-0.06 | 0.4-0.6 | - | - | - | 0.4 |
| ASTM SB-338 Gr. 15 | 0.08 | 0.25 | 0.05 | 0.015 | 0.30 | - | - | - | 0.04-0.06 | 0.4-0.6 | - | - | - | 0.4 |
| ASTM SB-338 Gr. 16 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | 0.04-0.08 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 16H | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | 0.04-0.08 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 17 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | - | - | 0.04-0.08 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 18 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.5-3.5 | 2.0-3.0 | 0.04-0.08 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 26 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | - | 0.08-0.14 | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 26H | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | - | 0.08-0.14 | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 27 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | - | - | - | 0.08-0.14 | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 28 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.5-3.5 | 2.0-3.0 | - | 0.08-0.14 | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 31 | 0.08 | 0.35 | 0.05 | 0.015 | 0.30 | - | - | 0.04-0.08 | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 33 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | - | - | 0.01-0.02 | 0.02-0.04 | 0.35-0.55 | - | - | - | 0.4 |
| ASTM SB-338 Gr. 34 | 0.08 | 0.35 | 0.05 | 0.015 | 0.30 | - | - | 0.01-0.02 | 0.02-0.04 | 0.35-0.55 | - | - | - | 0.4 |
| ASTM SB-338 Gr. 35 | 0.08 | 0.25 | 0.05 | 0.015 | 0.20-0.80 | 4.0-5.0 | 1.1-2.1 | - | - | - | 1.5-2.5 | - | 0.4 | |
| ASTM SB-338 Gr. 36 | 0.04 | 0.16 | 0.03 | 0.015 | 0.03 | - | - | - | - | - | - | 42.0-47.0 | 0.4 | |
| ASTM SB-338 Gr. 37 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | 1.0-2.0 | - | - | - | - | - | - | 0.4 | |
| ASTM SB-338 Gr. 38 | 0.08 | 0.20-0.30 | 0.03 | 0.015 | 1.2-1.8 | 3.5-4.5 | 2.0-3.0 | - | - | - | - | - | - | 0.4 |
*(Note: Ti percentage is determined by difference. Final product hydrogen content is always reported.)*
Value-Added Services & Global Supply Chain
As a key ASTM SB-338 Dealer and ASTM SB-338 Wholesaler, we are equipped to handle large-scale supply projects, ensuring timely delivery and quality processing for all our ASTM SB-338 Seamless Tubes and ASTM SB-338 Welded Tubes.
Commercial Expertise
- Competitive Pricing as a direct ASTM SB-338 Manufacturer
- Global Shipping as an ASTM SB-338 Exporter
- Full Traceability and Mill Test Certificates (MTC)
Processing & Customization
- Custom Cut-to-Length, U-Bending, and Coiling
- Beveling, End-Capping, and Line-Wise Tagging
- Mechanical Testing for Tensile and Yield Strength
Sourcing & Distribution
- Extensive stock maintained as ASTM SB-338 Stockiest
- Sourcing and supply support as an ASTM SB-338 Importer
- Distribution services across India as ASTM SB-338 Distributors
Key Global Applications of Our ASTM SB-338 Tubes
Titanium's unique properties make it indispensable in extreme environments. We are a trusted ASTM SB-338 Welded Tubes Exporter for these critical sectors:
Power Generation & Desalination
- Surface Condenser Tubing (Gr 2, Gr 7)
- Evaporator and Heat Exchanger Bundles in MSF/MED Plants
Chemical & Petrochemical
- Processing Heat Exchangers handling chlorides and acids (Gr 12)
- Corrosive Fluid Conveyance Lines (Gr 2, Gr 7)
Marine & Offshore
- Seawater Cooling Systems and Piping
- Subsea Heat Transfer Units
Other Industrial
- Hydraulic Lines (Gr 9/18)
- Cryogenic Systems (Ti alloys retain strength at low temperatures)
ASTM SB-338 Global Export Markets: ASTM SB-338 Supplier in India Supplying from Mumbai
Dipti Metal Industries is a proud ASTM SB-338 Exporter, serving as a reliable ASTM SB-338 Supplier in Mumbai and a ASTM SB-338 Distributor to OEMs, EPC contractors, and end-users worldwide. We are highly proficient as a ASTM SB-338 Welded Tubes Exporter.
- USA: Houston, Los Angeles, New York, Chicago, New Orleans
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal
- Mexico: Mexico City, Monterrey, Guadalajara, Veracruz
- 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
- 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 (Supplier of Gr 2 Tubes)
- United Kingdom: London, Manchester, Aberdeen, Glasgow, Liverpool
- Netherlands: Rotterdam, Amsterdam, The Hague
- France: Paris, Marseille, Lyon, Le Havre, Bordeaux
- Italy: Milan, Rome, Genoa, Venice, Naples (Supplier of Gr 2 Tubes)
- 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
- UAE: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah
- Qatar: Doha, Ras Laffan
- Oman: Muscat, Sohar, Salalah
- Kuwait: Kuwait City, Ahmadi
- Bahrain: Manama, Sitra
- Iraq: Baghdad, Basra, Erbil
- Iran: Tehran, Mashhad, Bandar Abbas, Isfahan
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad
- 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
- Malaysia: Kuala Lumpur, Johor Bahru, Port Klang, Penang
- 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
- 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
- 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 ASTM SB-338 in India and Global Requirements!
Are you searching for the most competitive ASTM SB-338 Exporter price or need guaranteed ASME/ASTM B338 certification? Contact Dipti Metal Industries, your expert ASTM SB-338 Manufacturer and ASTM SB-338 Wholesaler in Mumbai, India, today. We provide full documentation and the best DIPTI® ASTM SB-338 Supplier solutions.
Important: When requesting a quote, please specify the required ASTM SB-338 Grade (e.g., Gr 2, Gr 7, Gr 12), required NDT (UT/ET/Hydro), and if you require Seamless, Welded, or WCS tubes.
ASTM SB-338 Titanium Tubes — Frequently Asked Questions
Find answers to common questions about ASTM SB-338 Manufacturer production, grades, standards, and applications.
The primary application is for surface condensers, evaporators, and heat exchangers, especially in industries dealing with highly corrosive media like seawater (e.g., power plants, desalination, marine, and chemical processing). This is why ASTM SB-338 Gr. 2 Tubes are so popular.
Seamless tubes are extruded or cold drawn without a weld, typically used for higher pressures. Welded tubes (WLD) are formed and arc-welded from flat strip, often followed by cold-work and stress relief (WCS) to achieve properties comparable to seamless, making them economical for large-volume heat exchanger applications. We supply both as a reliable ASTM SB-338 Seamless Tubes Supplier and ASTM SB-338 Welded Tubes Manufacturer.
Grades 7, 11 (Palladium-enhanced CP Ti), Grade 12 (Ti-Mo-Ni), and the Ruthenium-enhanced Grades (26, 27, 28) are specifically designed for environments prone to crevice corrosion, such as those found under deposits in heat exchangers, providing a distinct advantage over pure CP Grades 2 and 3.
The 'H' grades are essentially the corresponding numeric grade but with a higher guaranteed minimum Ultimate Tensile Strength (58 ksi). These grades are primarily intended for pressure vessel use where higher guaranteed minimum mechanical properties are required for design calculations, while retaining the same corrosion resistance as the base grade.
Contact Dipti Metal Industries, Your ASTM SB-338 Supplier & ASTM SB-338 Welded Tubes Manufacturer
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide ASTM SB-338 Exporter and a key ASTM SB-338 Stockiest in Mumbai, India.