DIPTI METAL INDUSTRIES
DIPTIINOX® ER309 TIG Rod (AWS A5.9): Leading Manufacturer & Exporter for Dissimilar Metals and Cladding Applications
Dipti Metal Industries is a Leading ER309 TIG Rod Manufacturer and Dissimilar Metal Welding Wire Exporter in Mumbai, India, specializing in high-performance AWS A5.9 ER309 GTAW filler metal under the DIPTIINOX® brand. This solid wire features a significantly higher alloy content (approx. **23% Chromium and 13% Nickel**) compared to ER308, giving it superior **dilution tolerance**. This characteristic makes it the primary consumable choice for joining **dissimilar metals**, specifically welding **mild steel or low-alloy steel to any austenitic stainless steel** (e.g., 304, 316). It is also widely used as the **barrier layer or buttering layer** when overlaying carbon steel with stainless steel for corrosion protection. As a trusted Stainless Steel TIG Rod ER309 Supplier, we guarantee full conformance to AWS A5.9 for critical industrial applications globally.
DIPTIINOX® ER309: The Go-To Filler for Dissimilar Metals and Stainless Cladding
The AWS A5.9 ER309 TIG Rod is an essential consumable recognized for its robust, high-alloy content (approx. **23% Cr, 13% Ni**), which is significantly higher than that of standard 308. This enrichment is intentional, providing the weld metal with the capacity to absorb the dilution from **mild steel or low-alloy steel** base metals without becoming brittle or losing its corrosion-resistant austenitic structure. The primary function of ER309 is therefore **dissimilar metal welding** (joining carbon steel to stainless steel) and as a **barrier layer in stainless steel overlays** (cladding) on carbon steel vessels. It can also be used to weld similar high-alloy austenitic stainless steels in their wrought or cast form, and in some cases, to weld straight chromium steels. Dipti Metal Industries manufactures every ER309 rod to ensure a crack-resistant weld deposit with high tensile strength and excellent ductility.
Key Features, Benefits, and Conformances of ER309 TIG Rods
Key Features & Service Performance (As per Datasheet)
- Primary Use: Welding **dissimilar materials** (Mild/Low-Alloy Steel to Austenitic Stainless Steel).
- Alloy Content: High Chromium (23.0–25.0%) and Nickel (12.0–14.0%) for **dilution tolerance**.
- Cladding: Essential as a **barrier layer** or **buttering layer** in stainless steel weld overlays.
- Corrosion Resistance: Good corrosion resistance in the as-welded condition, suitable for many industrial applications.
- Base Metal Match: Welding similar high-alloy AISI 309 base materials in wrought or cast forms.
International Conformances and Quality
- Form: Solid Wire for TIG (GTAW) and MIG (GMAW).
- Finish: Bright finish, essential for high-purity TIG welding applications.
AWS A5.9 ER309 - Chemical Composition and Mechanical Properties
AWS Chemical Composition Requirements (%)
| C max | Mn | Si | P max | S max | Cr | Ni | Mo max | Cu max |
|---|---|---|---|---|---|---|---|---|
| 0.12 | 1.0 – 2.5 | 0.30 – 0.65 | 0.03 | 0.03 | 23.0 – 25.0 | 12.0 – 14.0 | 0.75 | 0.75 |
Deposited Chemical Composition % (Typical)
| C | Mo | P | Cr | Mn | S | Ni | Si | Cu |
|---|---|---|---|---|---|---|---|---|
| 0.06 | 0.25 | 0.018 | 23.50 | 1.80 | 0.015 | 13.0 | 0.40 | 0.20 |
Mechanical Properties (R.T.) of Deposited All Weld Metal (Typical)
| Yield Strength (psi) | Tensile Strength (psi) | Elongation % | Reduction of Area % |
|---|---|---|---|
| 57,000 | 86,000 | 47% | 68% |
Data is typical for ER309 weld metal deposited by TIG (GTAW) using 100% Argon as the shielding gas.
Welding Parameters, Diameter Range, and Packaging Options
Our ER309 TIG Rod is optimized for consistent feed and arc performance, crucial when managing the complexities of dissimilar metal welding. It is supplied in standard cut lengths for GTAW and spools for GMAW (MIG).
Recommended Welding Parameters (GTAW - Tig Process)
| 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 | Argon 100% |
| 1/16 | 1.6 | 90-130 | 14-16 | Argon 100% |
| 3/32 | 2.4 | 120-175 | 15-20 | Argon 100% |
Note: When welding dissimilar joints, preheat and post-weld heat treatment requirements for the lower alloyed (e.g., carbon steel) material should be followed.
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® ER309 TIG Rod
The **ER309** TIG rod is critical in heavy industry, chemical, and energy sectors for its ability to bridge the gap between different material types and provide protective stainless layers:
- Dissimilar Welding: Essential for joining carbon steel or low-alloy steel equipment to stainless steel components (e.g., in piping systems, transitions, or structural supports).
- Stainless Cladding: Used as the initial **buttering** pass on carbon steel when creating a corrosion-resistant stainless steel overlay in pressure vessels, heat exchangers, and tanks.
- Welding Similar Alloys: Welding wrought or cast materials of similar high-alloy composition (e.g., UNS S30900, ASTM A296 Grade CF-8A).
- Straight Chromium Steels: Sometimes used to weld straight chromium stainless steels (e.g., 400 series) that are not hardened by air cooling.
ER309 TIG Rods Global Export Markets: We are the Biggest Manufacturer Supplying from Mumbai, India
Dipti Metal Industries is a proud ER309 TIG Rod Exporter, ER309 TIG Rod Trader, and ER309 TIG Rod Distributors from our base in TIG rod manufacturer Mumbai, India. We serve as an ER309 manufacturer in Asia and a reliable ER309 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 ER309 TIG Rod Requirements!
Are you searching to buy ER309 TIG Rod that is dependable, high-quality, and AWS A5.9 certified for your most challenging dissimilar metal joints or stainless cladding projects? Contact Dipti Metal Industries, your expert biggest manufacturer and ER309 TIG Rod Manufacturer, Stainless Steel GTAW Filler Metal Supplier in Mumbai, India, TIG Rod Stockiest, Welding Wire Dealer, and Stainless Steel Welding Wire Exporter, 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® ER309 TIG Rod solutions.
Price guidance (non-binding): USD 8.00–60.00 per kg depending on grade, diameter, packaging (Spool/Tube), quantity, and delivery terms. Final prices are quotation-based.
ER309 TIG Rod — Frequently Asked Questions
The main application for **ER309 is welding dissimilar materials**, specifically joining stainless steel (e.g., 304, 308) to non-alloyed or low-alloyed carbon steel. Its high alloy content helps the weld tolerate dilution from the carbon steel base metal.
ER309 is typically used as the 'barrier layer' or 'buttering layer' when cladding carbon steel with stainless steel. Its high Cr/Ni content ensures that even after dilution with the carbon steel, the weld deposit remains fully austenitic and resistant to cracking.
ER309 contains significantly higher chromium and nickel (23Cr-13Ni) compared to ER308 (20Cr-10Ni). This higher alloy content allows ER309 to tolerate a higher degree of dilution from base metals like mild steel without losing its austenitic structure or corrosion resistance.
Yes, while ER309 contains up to **0.12% Carbon**, the extra high chromium and nickel content helps to suppress the formation of harmful carbides in the weld metal, making it suitable for welding similar high-alloy components that require crack resistance.
Contact Dipti Metal Industries, Your ER309 TIG Rod Manufacturer, TIG Rod ER309 Exporter, TIG Rod ER309 Supplier in Mumbai, TIG Rod ER309 in India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality ER309 TIG Rod ER309 for export from Mumbai, India.