DIPTI METAL INDUSTRIES
DIPTIINOX® ER630 TIG Rod (AWS A5.9): Leading Manufacturer & Exporter of 17-4PH Precipitation Hardening Filler Metals
Dipti Metal Industries is a Leading ER630 TIG Rod Manufacturer and 17-4PH Stainless Steel Welding Wire Exporter in Mumbai, India, specializing in high-performance AWS A5.9 ER630 GTAW filler metal under the DIPTIINOX® brand. ER630 (UNS S63080) is a copper-modified martensitic stainless steel designed for welding 17-4PH (Type 630) precipitation-hardening base metals. This grade is uniquely formulated to provide high strength and hardness through a combination of martensitic transformation and precipitation aging. As a premier Precipitation Hardening TIG Rod ER630 Supplier, we provide rods that deliver exceptional fatigue strength and resistance to high-temperature oxidation for critical aerospace, nuclear, and chemical industries globally.
DIPTIINOX® ER630: The High-Strength Solution for Hardening Alloys
The AWS A5.9 ER630 TIG Rod is specifically engineered for joining precipitation-hardening stainless steels, where the mechanical properties of the weld must match or approach those of the base metal. The addition of Copper (3.25-4.00%) is the critical alloying element that enables the weld deposit to respond to age-hardening (aging) heat treatments. In the as-welded condition, ER630 provides a strong martensitic structure, but following heat treatment (such as condition H900 or H1150), it achieves remarkable tensile strength exceeding 140 ksi and high impact resistance. Dipti Metal Industries ensures that every ER630 rod is manufactured with precise control over impurities to ensure smooth arc characteristics and sound, crack-free weld deposits in high-stress applications.
Key Features, Benefits, and Conformances of ER630 TIG Rods
Key Features & Service Performance (As per Datasheet)
- Age-Hardenable: Respond to precipitation hardening to achieve high strength.
- Metallurgical Match: Designed specifically for 17-4PH base metals.
- Corrosion Resistance: Superior to standard martensitic grades like 410.
- Surface Finish: Excellent resistance to erosion and cavitation.
- Magnetic: Fully magnetic in both as-welded and aged conditions.
International Conformances and Quality
- Fabrication: Solid Rod for TIG (GTAW) applications.
- Traceability: Heat number stamped or flagged on each rod.
AWS A5.9 ER630 - Chemical Composition and Mechanical Properties
AWS Chemical Composition Requirements (%)
| C max | Mn | Si max | P max | S max | Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|---|---|---|---|---|
| 0.05 | 0.25 – 0.75 | 0.75 | 0.03 | 0.03 | 16.0 – 16.75 | 4.5 – 5.0 | 3.25 – 4.0 | 0.15 – 0.30 |
Deposited Chemical Composition % (Typical)
| C | Mn | Si | Cr | Ni | Cu | Nb |
|---|---|---|---|---|---|---|
| 0.038 | 0.50 | 0.45 | 16.40 | 4.80 | 3.60 | 0.22 |
Mechanical Properties (Post-Weld Aged - H900 Typical)
| Yield Strength (psi) | Tensile Strength (psi) | Elongation % | Hardness (Rockwell C) |
|---|---|---|---|
| 160,000 | 190,000 | 12% | 40 - 44 HRC |
Mechanical properties depend significantly on the post-weld aging temperature and duration. Data shown is for the H900 condition (480°C/900°F for 1 hour).
Welding Parameters, Diameter Range, and Packaging Options
Our ER630 TIG Rod is manufactured with consistent drawing to ensure stability during the GTAW process. For heavy sections of 17-4PH, a pre-heat of 100°C - 150°C may be recommended to prevent hydrogen-induced cracking in the martensitic weld metal.
Recommended Welding Parameters (GTAW - Tig Process)
| Wire Diameter (mm) | Amps (DCSP) | Shielding Gas | Gas Flow (CFH) | Tungsten Type |
|---|---|---|---|---|
| 1.6mm (1/16") | 90-130 | Argon 100% | 15-20 | 2% Thoriated/Ceriated |
| 2.4mm (3/32") | 120-175 | Argon 100% | 20-25 | 2% Thoriated/Ceriated |
| 3.2mm (1/8") | 150-220 | Argon 100% | 25-30 | 2% Thoriated/Ceriated |
Note: Interpass temperature should be maintained below 150°C to ensure a uniform transformation to martensite prior to post-weld aging.
Standard Diameters & Export Packaging (TIG Rods)
| Diameter (mm) | Diameter (in) | Length (mm) | Packaging (kg) | Marking |
|---|---|---|---|---|
| 1.6 mm | 1/16 | 1000 | 5 kg (Box/Tube) | AWS ER630 Embossed |
| 2.0 mm | 5/64 | 1000 | 5 kg (Box/Tube) | AWS ER630 Embossed |
| 2.4 mm | 3/32 | 1000 | 5 kg (Box/Tube) | AWS ER630 Embossed |
| 3.2 mm | 1/8 | 1000 | 5 kg (Box/Tube) | AWS ER630 Embossed |
| 4.0 mm | 5/32 | 1000 | 5 kg (Box/Tube) | AWS ER630 Embossed |
Each 5 kg unit is vacuum-sealed or plastic-wrapped and packed in heavy-duty cartons for global shipment. Each rod features identification for end-to-traceability.
Primary Applications for DIPTIINOX® ER630 TIG Rod
The **ER630** TIG rod is the essential filler metal for industries requiring a unique combination of high mechanical strength and good corrosion resistance:
- Aerospace: Welding of engine parts, landing gears, and structural bolts where 17-4PH is standard.
- Nuclear Industry: Critical components requiring high strength and resistance to radiation-induced embrittlement.
- Marine Engineering: Propeller shafts, pump hardware, and valve seats exposed to high-velocity seawater.
- Chemical Processing: High-pressure reactors, agitators, and fasteners for aggressive chemical media.
- Food Machinery: Components requiring high surface hardness to resist abrasion while maintaining hygiene.
- Surgical Tools: High-strength medical instruments requiring autoclave durability and hardness.
Our Global Reach: Serving Countries Worldwide
DIPTI Metal Industries is a truly global exporter, proudly supplying to a vast network of clients across every continent. Our extensive logistics capabilities ensure reliable and on-time delivery to major industrial hubs and ports around the world.
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad
- UAE: Dubai, Abu Dhabi, Sharjah, Jebel Ali
- Saudi Arabia: Riyadh, Jeddah, Dammam, Jubail
- Qatar: Doha, Ras Laffan
- Oman: Muscat, Sohar, Salalah
- Kuwait: Kuwait City, Ahmadi
- Bahrain: Manama, Sitra
- Iraq: Baghdad, Basra, Erbil
- Iran: Tehran, Bandar Abbas, Isfahan
- Singapore: Singapore City
- Malaysia: Kuala Lumpur, Port Klang, Johor Bahru
- Indonesia: Jakarta, Surabaya, Balikpapan
- Thailand: Bangkok, Rayong, Laem Chabang
- Vietnam: Ho Chi Minh City, Hanoi, Haiphong
- Philippines: Manila, Cebu, Davao
- China: Shanghai, Beijing, Guangzhou, Tianjin, Qingdao
- Japan: Tokyo, Osaka, Nagoya, Yokohama
- South Korea: Seoul, Busan, Ulsan, Incheon
- Bangladesh: Dhaka, Chittagong
- Sri Lanka: Colombo, Kandy
- Myanmar: Yangon, Mandalay
- Kazakhstan: Nur-Sultan, Almaty, Atyrau
- Uzbekistan: Tashkent, Samarkand
- Turkmenistan: Ashgabat, Turkmenbashi
- Azerbaijan: Baku, Ganja
- Jordan: Amman, Aqaba
- Lebanon: Beirut, Tripoli
- Syria: Damascus, Aleppo (subject to trade regulations)
- Yemen: Sana'a, Aden (subject to trade regulations)
- Mongolia: Ulaanbaatar
- Nepal: Kathmandu
- Cambodia: Phnom Penh
- Laos: Vientiane
- Brunei: Bandar Seri Begawan
- Taiwan: Taipei, Kaohsiung
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf, Berlin
- United Kingdom: London, Aberdeen, Manchester, 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
- Russia: Moscow, Saint Petersburg, Kazan, Novorossiysk
- Poland: Warsaw, Krakow, Gdansk
- Belgium: Antwerp, Brussels, Ghent
- Sweden: Stockholm, Gothenburg, Malmö
- Norway: Oslo, Bergen, Stavanger, Trondheim
- Finland: Helsinki, Tampere, Turku
- Denmark: Copenhagen, Aarhus, Odense
- Portugal: Lisbon, Porto, Sines
- Greece: Athens, Thessaloniki, Patras
- Turkey: Istanbul, Ankara, Izmir
- Switzerland: Zurich, Geneva, Basel
- Austria: Vienna, Salzburg, Linz
- Ireland: Dublin, Cork
- Czech Republic: Prague, Brno
- Romania: Bucharest, Constanta
- Ukraine: Kyiv, Odesa (subject to current events)
- Hungary: Budapest, Debrecen
- Croatia: Zagreb, Split
- Serbia: Belgrade, Novi Sad
- Bulgaria: Sofia, Varna
- Slovakia: Bratislava, Kosice
- Lithuania: Vilnius, Kaunas
- Latvia: Riga, Liepāja
- Estonia: Tallinn, Tartu
- Slovenia: Ljubljana, Maribor
- Cyprus: Nicosia, Limassol
- Malta: Valletta, Birkirkara
- Iceland: Reykjavik
- Luxembourg: Luxembourg City
- Belarus: Minsk, Gomel (subject to trade regulations)
- Bosnia and Herzegovina: Sarajevo
- North Macedonia: Skopje
- Albania: Tirana, Durres
- Moldova: Chisinau
- Montenegro: Podgorica
- Kosovo: Pristina
- USA: Houston, Los Angeles, New York, Chicago, New Orleans, Philadelphia
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal, Halifax
- Mexico: Mexico City, Monterrey, Guadalajara, Veracruz, Ciudad del Carmen
- Panama: Panama City, Colón
- Trinidad & Tobago: Port of Spain, San Fernando
- Costa Rica: San José, Puerto Limón
- Guatemala: Guatemala City, Puerto Quetzal
- Honduras: Tegucigalpa, Puerto Cortés
- Nicaragua: Managua, Corinto
- El Salvador: San Salvador, Acajutla
- Jamaica: Kingston, Montego Bay
- Dominican Republic: Santo Domingo, Santiago
- Cuba: Havana, Santiago de Cuba (subject to trade regulations)
- Bahamas: Nassau, Freeport
- Barbados: Bridgetown
- Puerto Rico: San Juan
- Belize: Belize City
- Brazil: São Paulo, Rio de Janeiro, Salvador, Curitiba, Santos
- Argentina: Buenos Aires, Cordoba, Rosario, Bahia Blanca
- Chile: Santiago, Valparaíso, Concepción, Antofagasta
- Colombia: Bogotá, Medellín, Cartagena, Barranquilla
- Peru: Lima, Callao, Arequipa, Trujillo
- Venezuela: Caracas, Maracaibo, Puerto La Cruz (subject to trade regulations)
- Ecuador: Quito, Guayaquil, Manta
- Bolivia: La Paz, Santa Cruz, Cochabamba
- Uruguay: Montevideo, Salto
- Paraguay: Asunción, Ciudad del Este
- Guyana: Georgetown
- Suriname: Paramaribo
- French Guiana: Cayenne
- 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 (subject to current events)
- Tunisia: Tunis, Sfax
- Ethiopia: Addis Ababa, Dire Dawa
- Côte d'Ivoire: Abidjan
- Senegal: Dakar
- Zambia: Lusaka, Ndola
- Zimbabwe: Harare, Bulawayo
- DR Congo: Kinshasa, Lubumbashi
- Sudan: Khartoum, Port Sudan (subject to current events)
- Uganda: Kampala, Entebbe
- Gabon: Libreville, Port-Gentil
- Mauritius: Port Louis
- Reunion: Saint-Denis
- Djibouti: Djibouti City
- Eritrea: Asmara, Massawa
- Somalia: Mogadishu (subject to current events)
- Australia: Sydney, Melbourne, Perth, Brisbane, Adelaide, Darwin
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae
- Fiji: Suva, Nadi
- New Caledonia: Nouméa
- Solomon Islands: Honiara
- Vanuatu: Port Vila
- Samoa: Apia
- Tonga: Nukuʻalofa
- Kiribati: South Tarawa
- Micronesia: Palikir
- Marshall Islands: Majuro
- Palau: Ngerulmud
- Tuvalu: Funafuti
- Nauru: Yaren
Get a Quote Today for Your ER630 TIG Rod Requirements!
Are you looking to buy ER630 TIG Rod for high-strength aerospace or marine hardware projects? Contact Dipti Metal Industries, the biggest manufacturer and ER630 TIG Rod Exporter in Mumbai, India. Our expert technical team provides custom solutions for precision 17-4PH welding applications.
Price guidance (non-binding): USD 15.00–95.00 per kg depending on grade purity, quantity, and certification needs. Final prices are provided via a formal quotation.
ER630 TIG Rod — Frequently Asked Questions
ER630 is primarily used for welding 17-4PH (Precipitation Hardening) stainless steel. It is meticulously designed to match the specific chemistry and mechanical potential of the base metal, providing extreme strength and high hardness after the appropriate aging heat treatment.
Yes, while the weld is sound in the as-welded state, to achieve the high tensile strength (160+ ksi) and hardness (40+ HRC) typical of 17-4PH, weldments made with ER630 filler metal must undergo a precipitation hardening (aging) heat treatment, such as the H900 or H1150 conditions.
Yes, ER630 is strongly magnetic in both the as-welded and heat-treated conditions. This is due to its martensitic structure, which differentiates it from the 300-series austenitic stainless steels.
The Copper (Cu) addition in ER630 is the primary precipitation-hardening agent. During the aging heat treatment, copper precipitates within the martensitic matrix, creating a significant increase in the hardness and yield strength of the weld bead.
Contact Dipti Metal Industries, Your Global ER630 TIG Rod Manufacturer, Exporter, and Supplier in India
Specialists in high-strength precipitation hardening alloys. We offer individual rod tagging, vacuum packaging, and comprehensive MTC 3.1 for all military and aerospace orders.