DIPTI METAL INDUSTRIES
DIPTIINOX® ER309LMo TIG Rod (AWS A5.9): Leading Molybdenum-Bearing Manufacturer & Exporter for Chloride-Corrosion Critical Cladding
Dipti Metal Industries is a Leading ER309LMo TIG Rod Manufacturer, ER309LMo TIG Rod Supplier in Mumbai, and Molybdenum-Enhanced Dissimilar Metal Welding Wire ER309LMo Exporter in Mumbai, India, specializing in high-performance AWS A5.9 ER309LMo GTAW filler metal under the DIPTIINOX® brand. This specialized grade combines the benefits of ER309L (high dilution tolerance, low carbon) with a significant addition of 2.0% to 3.0% Molybdenum. This alloying strategy is crucial for two main reasons: 1) It ensures the weld deposit is highly resistant to pitting and crevice corrosion in environments containing chlorides (e.g., seawater or process fluids). 2) It is the industry's preferred choice for the first layer (barrier/buttering) when cladding carbon or low-alloy steels with more corrosion-resistant alloys like ER316L or ER317L, as it compensates for the dilution from the base metal, guaranteeing the entire overlay system achieves the necessary alloy content for the service environment. We are a reliable ER309LMo TIG Rod Stockiest and Wholesaler. We guarantee full conformance to AWS A5.9 for critical industrial applications globally.
DIPTIINOX® ER309LMo: The Specialized Consumable for Molybdenum-Rich Dissimilar Joints
The AWS A5.9 ER309LMo Filler Metal is a high-performance austenitic stainless steel grade designed for highly specialized welding tasks. It is fundamentally an ER309L (high-Cr/Ni, low-C for dilution control and heat treatment) but enriched with Molybdenum (Mo). This added Mo content significantly improves the alloy's resistance to pitting and crevice corrosion, especially in environments involving chlorides. Its main application is serving as a transition layer when joining carbon or low-alloy steel to stainless steel, or more critically, as the buttering layer in multi-layer cladding where the subsequent weld layers need a minimum Molybdenum content (e.g., in a 316L or 317L overlay) to meet service environment requirements. Dipti Metal Industries ensures every rod provides a robust, low-carbon weld deposit with exceptional resistance to sensitization and corrosive attack.
Key Features, Benefits, and Conformances of ER309LMo TIG Rods
Key Features & Service Performance (As per Datasheet)
- Molybdenum Content: Contains 2.0-3.0% Mo for vastly improved resistance to pitting and crevice corrosion.
- Low-Carbon (L) Grade: Ensures resistance to intergranular corrosion, particularly after Post-Weld Heat Treatment (PWHT).
- Cladding Buffer: Ideal first layer (buttering) on carbon steel when cladding with Mo-bearing top layers (ER316L, ER317L).
- Dissimilar Joints: Excellent for welding Mo-bearing stainless steels (like 316L) to carbon/low-alloy steels.
- Dilution Compensation: High Cr (23-25%) and Ni (12-14%) compensate for base metal dilution while the Mo compensates for cladding alloy requirements.
International Conformances and Quality
- Form: Solid Rod for TIG (GTAW). Also available as wire for MIG (GMAW).
- Finish: Bright finish, essential for high-purity TIG welding applications.
AWS A5.9 ER309LMo - Chemical Composition and Mechanical Properties
AWS Chemical Composition Requirements (%)
| C max | Cr | Ni | Mo | Mn | Si | P max | S max | Cu max |
|---|---|---|---|---|---|---|---|---|
| 0.03 | 23.0 – 25.0 | 12.0 – 14.0 | 2.0 – 3.0 | 1.0 – 2.5 | 0.30 – 0.65 | 0.03 | 0.03 | 0.75 |
Deposited Chemical Composition % (Typical)
| C | Cr | Ni | Mo | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|
| 0.02 | 23.75 | 13.10 | 2.40 | 1.75 | 0.40 | 0.012 | 0.010 |
Mechanical Properties (R.T.) of Deposited All Weld Metal (Typical)
| Yield Strength (psi) | Tensile Strength (psi) | Elongation % | Reduction of Area % |
|---|---|---|---|
| 58,000 | 85,000 | 36% | 55% |
Data is typical for ER309LMo weld metal deposited by TIG (GTAW) using 100% Argon as the shielding gas.
Welding Parameters, Diameter Range, and Packaging Options
Our ER309LMo TIG Rod is supplied in straight lengths for GTAW, and can be provided as spooled wire for Gas Metal Arc Welding (GMAW) on request. We are a leading ER309LMo TIG Rod Supplier with large inventory.
Recommended Welding Parameters (GTAW - TIG Process) - DCSP
| Wire Diameter (in) | Wire Diameter (mm) | Amps (DCSP) | Volts | Shielding Gas |
|---|---|---|---|---|
| .035 | 0.9 | 60-90 | 12-15 | Argon 100% |
| .045 | 1.2 | 80-110 | 13-16 | |
| 1/16 | 1.6 | 90-130 | 14-16 | |
| 3/32 | 2.4 | 120-175 | 15-20 |
Note: Parameters are general guidance and are highly dependent upon plate thickness, welding position, and specific joint design.
Standard Diameters & Packaging (GTAW - TIG Rods)
| Diameter (in) | Diameter (mm) | Length (in) | Length (mm) | Packaging (kgs) |
|---|---|---|---|---|
| .030 | 0.8 | 36 | 914 | 5 kgs (Plastic Container) |
| .035 | 0.9 | 36 | 914 | 5 kgs (Plastic Container) |
| .045 | 1.2 | 36 | 914 | 5 kgs (Plastic Container) |
| 1/16 | 1.6 | 36 | 914 | 5 kgs (Plastic Container) |
| 3/32 | 2.4 | 36 | 914 | 5 kgs (Plastic Container) |
| 1/8 | 3.2 | 36 | 914 | 5 kgs (Plastic Container) |
| 5/32 | 4.0 | 36 | 914 | 5 kgs (Plastic Container) |
| 3/16 | 4.8 | 36 | 914 | 5 kgs (Plastic Container) |
Each 5 kgs quantity is packed in an air-tight polythene bag and then secured in a durable plastic container for export. AWS code is punched on each wire for clear identification.
Primary Applications for DIPTIINOX® ER309LMo TIG Rod
The ER309LMo classification is an essential consumable for advanced welding applications requiring both dilution tolerance and elevated corrosion resistance:
- Cladding Layer (First Pass): The critical first layer (buttering layer) on carbon or low-alloy steels when the final overlay is a Molybdenum-bearing alloy like ER316L or ER317L.
- Dissimilar Joints (Mo-Bearing): Joining any molybdenum-bearing stainless steel (e.g., 316L or 317L) to carbon or low-alloy steel base metals.
- Pitting & Crevice Corrosion: Used in applications exposed to moderate chloride or mild reducing environments (e.g., in some chemical process or pulp & paper applications).
- High-Temperature Stress: Fabrication of pressure vessels and components operating at elevated temperatures that require both high strength and a protective, Molybdenum-bearing low-carbon weld.
ER309LMo TIG Rods Global Export Markets: We are the Biggest ER309LMo Manufacturer Supplying from Mumbai, India
Dipti Metal Industries is a proud ER309LMo TIG Rod Manufacturer, ER309LMo TIG Rod Supplier in India, ER309LMo TIG Rod Exporter, ER309LMo TIG Rod Trader, ER309LMo TIG Rod Stockiest, and ER309LMo TIG Rod Distributors from our base in TIG rod ER309LMo manufacturer Mumbai, India. We serve as an ER309LMo manufacturer in Asia and a reliable ER309LMo manufacturer in Europe, ensuring timely and compliant delivery to major industrial hubs across over 190 countries globally.
Explore Our Extensive Global Reach (Illustrative Markets)
- 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
- 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
- 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 (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
- 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 ER309LMo Filler Metal Requirements!
Are you searching to buy ER309LMo TIG Rod that is dependable, high-quality, and AWS A5.9 certified for your Molybdenum-enhanced dissimilar metal joints or specialized cladding projects? Contact Dipti Metal Industries, your expert ER309LMo TIG Rod Manufacturer, ER309LMo TIG Rod Stockiest, ER309LMo TIG Rod Dealer, and ER309LMo TIG Rod Distributors in Mumbai, India, today to discuss your specific requirements or to request a personalized, custom quote. We are your reliable ER309LMo TIG Rod wholesaler for the fastest bulk supply. Our team is dedicated to providing you with the most effective, safest, and most reliable DIPTIINOX® ER309LMo solutions.
Price guidance (non-binding): USD 8.00–60.00 per kg depending on grade, diameter, packaging (Spool/Coil/Tube), quantity, and delivery terms. Final prices are quotation-based.
ER309LMo TIG Rod & Wire — Frequently Asked Questions
The Molybdenum (Mo) content (2.0-3.0%) dramatically increases the weld metal's resistance to pitting and crevice corrosion, particularly in chloride-bearing environments. It is essentially a high-alloy ER309L designed for environments requiring 316-level corrosion protection.
When cladding carbon steel (CS) with ER316L, the first weld layer is diluted by the CS, reducing its alloy content. Using ER309LMo (a hyper-alloyed base metal) for the first layer compensates for this dilution, ensuring the final cap layer (ER316L or ER317L) maintains the required low-carbon and Mo-bearing corrosion resistance properties.
Yes, ER309LMo is an excellent choice for joining 316L stainless steel to carbon steel or low-alloy steel in a single pass. The high Cr/Ni content manages the dilution, and the Molybdenum ensures the weld deposit has enhanced pitting corrosion resistance, often outperforming the base 316L in terms of corrosion integrity at the fusion line.
The Unified Numbering System (UNS) designation for the ER309LMo filler metal is UNS S30990.
Contact Dipti Metal Industries, Your ER309LMo TIG Rod Manufacturer, TIG Rod ER309LMo Exporter, TIG Rod ER309LMo Supplier in Mumbai, TIG Rod ER309LMo in India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality ER309LMo TIG Rod Manufacturer, ER309LMo TIG Rod Supplier in India, and ER309LMo TIG Rod Wholesaler from Mumbai, India.