DIPTI METAL INDUSTRIES
DIPTIINOX® ER309L TIG Rod (AWS A5.9): Leading Low-Carbon Manufacturer & Exporter for Heat-Treated Dissimilar Joints
Dipti Metal Industries is a Leading ER309L TIG Rod Manufacturer and Low-Carbon Dissimilar Metal Welding Wire ER309L TIG Rod Exporter in Mumbai, India, specializing in high-performance AWS A5.9 ER309L GTAW filler metal under the DIPTIINOX® brand. This solid wire maintains the high alloy content of ER309 (23% Chromium and 13% Nickel) for superior dilution control, but with a critical difference: the carbon is restricted to a 0.03% maximum. This low-carbon feature makes it the premium consumable for joining dissimilar metals (mild steel/low-alloy steel to stainless steel) and for stainless steel cladding applications, specifically when Post-Weld Heat Treatment (PWHT) will be performed. Using ER309L prevents sensitization and subsequent intergranular corrosion (weld decay) in heat-affected zones. We guarantee full conformance to AWS A5.9 for critical industrial applications globally.
DIPTIINOX® ER309L: The Low-Carbon Solution for Corrosion-Critical Dissimilar Welds
The AWS A5.9 ER309L Filler Metal is engineered to meet the stringent demands of chemical, petrochemical, and power generation industries. While its primary function remains dissimilar metal welding (joining carbon steel or low-alloy steel to austenitic stainless steel), the addition of the 'L' designation (low carbon, 0.03% maximum) elevates its performance dramatically. This low carbon content prevents the precipitation of chromium carbides during the heating and cooling cycles, particularly when a Post-Weld Heat Treatment (PWHT) is mandated for the carbon steel component. ER309L is thus the preferred electrode for these applications, guaranteeing a weld deposit with a corrosion resistance profile superior to that of standard ER309. It is available as TIG Rod (GTAW), MIG Wire (GMAW), and Submerged Arc Coil (SAW).
Key Features, Benefits, and Conformances of ER309L Filler Metal
Key Features & Service Performance (As per Datasheet)
- Low-Carbon Content: Carbon restricted to 0.03% max to avoid carbide precipitation.
- Primary Use: Welding dissimilar materials that require Post-Weld Heat Treatment (PWHT).
- Cladding: Preferred barrier/buttering layer in multi-pass stainless steel weld overlays on carbon/low-alloy steels.
- Dilution Control: High Cr (23-25%) and Ni (12-14%) content provides excellent tolerance to dilution from carbon steel base metal.
- Corrosion Resistance: High resistance to intergranular corrosion (weld decay) in critical environments.
International Conformances and Quality
- Form: Solid Wire for TIG (GTAW), MIG (GMAW), and SAW.
- Finish: Bright finish for TIG, and layer-wound spools for consistent feed in automated processes.
AWS A5.9 ER309L - Chemical Composition and Mechanical Properties
AWS Chemical Composition Requirements (%)
| C max | Cr | Ni | Mo max | Mn | Si | P max | S max | Cu max |
|---|---|---|---|---|---|---|---|---|
| 0.03 | 23.0 – 25.0 | 12.0 – 14.0 | 0.75 | 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 |
|---|---|---|---|---|---|---|---|
| 0.015 | 23.50 | 13.50 | 0.25 | 2.0 | 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 | 87,000 | 40% | 60% |
Data is typical for ER309L weld metal deposited by MIG (GMAW) using Argon + 2% oxygen as the shielding gas.
Welding Parameters, Diameter Range, and Packaging Options
Our ER309L Filler Metal is available in cut lengths for TIG (GTAW) and various spools and coils for automated MIG (GMAW) and Submerged Arc (SAW) processes. Below are the recommended parameters for automated welding.
Recommended Welding Parameters (GMAW - MIG Process) - Reversed Polarity
| Process | Wire Diameter (in) | Wire Feed (in/min) | Amps | Volts | Shielding Gas | Gas CFH |
|---|---|---|---|---|---|---|
| Short Arc Welding | .030 | 13-26 | 40-120 | 16-20 | Argon+2% O2 | 25 |
| .035 | 13-26 | 60-140 | 16-22 | |||
| Spray Arc Welding | .035 | 20-39 | 140-220 | 24-29 | 38 | |
| .045 | 16-30 | 160-260 | 25-30 | |||
| 1/16 | 10-16 | 230-350 | 27-31 |
Note: Other shielding gases can be used, taking quality, cost, and operability into consideration. Always follow preheat and interpass temperature limits for the base material.
Recommended Welding Parameters (SAW - Submerged Arc Welding Process) - Reversed Polarity Suggested
| Wire Diameter | Amps | Volts | Note |
|---|---|---|---|
| 3/32 | 250-450 | 28-32 | Flux chemical composition greatly affects weld metal chemistry and properties. Consult our flux specialists. |
| 1/8 | 300-500 | 29-34 | |
| 5/32 | 400-600 | 30-35 | |
| 3/16 | 500-700 | 30-35 |
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) |
We also supply ER309L in spools (2#, 10#, 25#, 30#, 33#) for MIG/GMAW and coils (60#, mill coil) for SAW.
Primary Applications for DIPTIINOX® ER309L TIG Rod & Wire
The ER309L filler metal is critical for environments where intergranular corrosion resistance is paramount, often following high heat exposure. Its key uses include:
- Heat-Treated Dissimilar Welding: Essential for joining carbon steel or low-alloy steel to stainless steel (e.g., 304, 316) where the finished component will be subjected to Post-Weld Heat Treatment (PWHT).
- Cladding and Overlay: Used as the initial buttering pass on carbon or low-alloy steels to create a corrosion-resistant stainless layer in pressure vessels and tanks for chemical processing and petrochemicals.
- Chemical Applications: Utilized in the fabrication of equipment for the chemical industry where strict low-carbon requirements are specified to maintain corrosion resistance in service.
- High-Temperature Service: Welding similar high-alloy 309L base materials in applications involving elevated operating temperatures or thermal cycling.
ER309L TIG Rods Global Export Markets: We are the Biggest ER309L TIG Rod Manufacturer Supplying from Mumbai, India
Dipti Metal Industries is a proud ER309L TIG Rod Exporter, ER309L TIG Rod Trader, and ER309L TIG Rod Distributors from our base in TIG rod ER309L TIG Rod manufacturer Mumbai, India. We serve as an ER309L manufacturer in Asia and a reliable ER309L 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 ER309L Filler Metal Requirements!
Are you searching to buy ER309L TIG Rod or ER309L MIG Wire that is dependable, high-quality, and AWS A5.9 certified for your low-carbon, heat-treated dissimilar metal joints or stainless cladding projects? Contact Dipti Metal Industries, your expert biggest manufacturer and ER309L TIG Rod Manufacturer, Stainless Steel GTAW/GMAW Filler Metal 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 DIPTIINOX® ER309L 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.
ER309L TIG Rod & Wire — Frequently Asked Questions
The key difference is the carbon content. ER309L has a maximum carbon content of 0.03%, compared to 0.12% max for ER309. This 'L' designation ensures the weld metal is highly resistant to intergranular corrosion (weld decay), especially when the weld joint is subjected to post-weld heat treatment.
ER309L is preferred in two critical scenarios: 1) For welding dissimilar joints (SS to CS) that will undergo Post-Weld Heat Treatment (PWHT). 2) As a barrier layer in stainless steel cladding (overlay) of carbon steel for chemical or high-temperature service where an 'L' grade is specified to prevent carbide precipitation.
Yes, ER309L is a solid wire specification (AWS A5.9) and is commonly manufactured in spool and coil forms for both Gas Metal Arc Welding (GMAW/MIG) and Submerged Arc Welding (SAW), in addition to TIG (GTAW) rod form.
No, the low carbon content is independent of the primary alloying elements (Chromium and Nickel). ER309L maintains the same high Cr (23-25%) and Ni (12-14%) levels as ER309, ensuring excellent tolerance to dilution from the mild steel base metal while adding resistance to sensitization.
Contact Dipti Metal Industries, Your ER309L TIG Rod Manufacturer, TIG Rod ER309L Exporter, TIG Rod ER309L Supplier in Mumbai, TIG Rod ER309L in India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality ER309L Filler Metal for export from Mumbai, India.