DIPTI METAL INDUSTRIES
DIPTIINOX® ER312 TIG Rod (AWS A5.9): Leading Manufacturer & Exporter for High-Ferrite, Crack-Resistant Dissimilar Welding
Dipti Metal Industries is a Leading ER312 TIG Rod Manufacturer, ER312 TIG Rod Supplier in Mumbai, and ER312 TIG Rod Stockiest in Mumbai, India, specializing in high-performance AWS A5.9 ER312 GTAW filler metal under the DIPTIINOX® brand. This wire features an exceptionally high level of Chromium (28.0% to 32.0%) and Nickel (8.0% to 10.5%), which results in a weld deposit with very high Delta Ferrite content. This high ferrite provides outstanding resistance to micro-cracking and hot cracking, making ER312 the "universal" filler metal for joining difficult combinations of dissimilar metals (e.g., carbon steel to stainless steel, mild steel to high-strength steels, and stainless to various cast alloys). It is also used for welding cast alloys of similar composition and as a first-layer weld overlay. We are a reliable ER312 TIG Rod Wholesaler and guarantee full conformance to AWS A5.9 for critical industrial applications globally.
DIPTIINOX® ER312: The High-Ferrite, High-Strength Consumable for Dissimilar & Cast Alloys
The AWS A5.9 ER312 TIG Rod is a unique, highly alloyed consumable engineered specifically for strength and crack resistance in demanding situations. With chromium levels between 28.0% and 32.0%, its weld deposit is stabilized by an exceptionally high volume of Delta Ferrite (often over 20 Ferrite Number). This robust Ferrite network acts as a buffer against stress, making it highly tolerant to joint dilution, thermal shock, and base metal variations. This makes ER312 the ultimate dissimilar metal joining solution, particularly effective when the composition of the base metals is uncertain or when joining materials of drastically different properties, like stainless steel to high-carbon or tool steels. Its high strength also makes it an excellent choice for weld overlays requiring superior wear and abrasion resistance.
Key Features, Benefits, and Conformances of ER312 TIG Rods
Key Features & Service Performance (As per Datasheet)
- Exceptional Ferrite Content: Produces a high-ferrite weld deposit for superior resistance to hot cracking and micro-fissuring.
- Ultimate Dissimilar Welding: The ideal universal filler for joining virtually any combination of stainless, carbon, and low-alloy steels.
- High Strength: Provides a weld metal with very high tensile strength (typical 105,000 psi).
- Base Metal Match: Welding cast alloys of similar 29Cr-9Ni composition (e.g., CD-4MCu).
- Weld Overlays: Used for hard-facing and surfacing applications demanding high abrasion resistance.
International Conformances and Quality
- Form: Solid Rod for TIG (GTAW). Also available as wire for MIG/SAW.
- Finish: Bright finish, essential for high-purity TIG welding applications.
AWS A5.9 ER312 - Chemical Composition and Mechanical Properties
AWS Chemical Composition Requirements (%)
| C max | Cr | Ni | Mo max | Mn | Si | P max | S max | Cu max |
|---|---|---|---|---|---|---|---|---|
| 0.15 | 28.0 – 32.0 | 8.0 – 10.5 | 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 |
|---|---|---|---|---|---|---|---|
| 0.11 | 29.00 | 9.25 | 0.15 | 1.60 | 0.40 | 0.013 | 0.013 |
Mechanical Properties (R.T.) of Deposited All Weld Metal (Typical)
| Yield Strength (psi) | Tensile Strength (psi) | Elongation % | Reduction of Area % |
|---|---|---|---|
| 75,000 | 105,000 | 25% | 30% |
Data is typical for ER312 weld metal deposited by TIG (GTAW) using 100% Argon as the shielding gas.
Welding Parameters, Diameter Range, and Packaging Options
Our ER312 TIG Rod is supplied in straight lengths, optimized for manual and automated Gas Tungsten Arc Welding (GTAW). It is essential to manage heat input carefully when welding with high-ferrite consumables. We are a leading ER312 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. Weld with controlled heat input and adhere to interpass temperature limits to prevent micro-fissuring and to control ferrite levels.
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® ER312 TIG Rod
The ER312 filler metal is uniquely formulated for situations that defeat conventional stainless steel fillers, offering maximum strength and crack resistance:
- Dissimilar Metal Joints: The most common application, used for welding virtually all stainless steel grades to carbon steels, low-alloy steels, tool steels, and other complex metal combinations.
- Cast Alloys: Welding cast stainless steel alloys of similar composition, though multi-pass layers should be limited to prevent excessive ferrite and embrittlement.
- Maintenance and Repair: Widely used for joining or repairing steels of uncertain or unknown composition (the "universal rod") due to its tolerance for impurities and resistance to cracking.
- High-Strength Components: Applications requiring very high tensile and yield strength, often exceeding that of the base metals it is joining.
ER312 TIG Rods Global Export Markets: We are the Biggest Manufacturer Supplying from Mumbai, India
Dipti Metal Industries is a proud ER312 TIG Rod Manufacturer, ER312 TIG Rod Supplier in India, ER312 TIG Rod Exporter, ER312 TIG Rod Trader, ER312 TIG Rod Stockiest, and ER312 TIG Rod Distributors from our base in TIG rod manufacturer Mumbai, India. We serve as an ER312 manufacturer in Asia and a reliable ER312 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 ER312 Filler Metal Requirements!
Are you searching to buy ER312 TIG Rod that is dependable, high-quality, and AWS A5.9 certified for your highly demanding dissimilar metal joints and high-strength applications? Contact Dipti Metal Industries, your expert ER312 TIG Rod Manufacturer, ER312 TIG Rod Stockiest, ER312 TIG Rod Dealer, and ER312 TIG Rod Distributors in Mumbai, India, today to discuss your specific requirements or to request a personalized, custom quote. We are your reliable ER312 TIG Rod wholesaler for the fastest bulk supply. Our team is dedicated to providing you with the most effective, safest, and most reliable DIPTIINOX® ER312 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.
ER312 TIG Rod & Wire — Frequently Asked Questions
The ER312 filler metal has an exceptionally high chromium content (28-32%) which results in a high ferrite content (often 20-30+ FN) in the weld deposit. This high ferrite provides excellent resistance to micro-cracking and hot cracking, making it a universal choice for welding dissimilar metals and steels with uncertain compositions.
ER312 is frequently used to join carbon or low-alloy steels to stainless steels, tool steels to stainless steels, and even certain high-strength nickel alloys where other fillers would be prone to cracking. It is considered the strongest of the general-purpose dissimilar welding consumables.
When welding similar high-ferrite cast alloys, the very high ferrite content of the ER312 weld metal, while great for crack resistance, can lead to undesirable brittle phases (like Sigma phase) when reheated repeatedly (multi-pass welding). Limiting layers minimizes the heat cycles and preserves ductility.
The typical tensile strength of an ER312 weld deposit is around 105,000 psi, which is considerably higher than most standard austenitic stainless steel fillers, reinforcing its use in high-strength, difficult joints.
Contact Dipti Metal Industries, Your ER312 TIG Rod Manufacturer, TIG Rod ER312 Exporter, TIG Rod ER312 Supplier in Mumbai, TIG Rod ER312 in India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality ER312 TIG Rod Manufacturer, ER312 TIG Rod Supplier in India, and ER312 TIG Rod Wholesaler from Mumbai, India.