Inconel 617 Welding Wire (ERNiCrCoMo-1) -TIG & MIG Filler Metal Supplier in India
Nicorex Alloys is an ISO 9001 and ISO 14001 certified supplier and stockist of ERNiCrCoMo-1 (Filler Metal 617) TIG filler rods and MIG wire in Mumbai, India. We ensure that all standard diameters comply with AWS A5.14. We are an authorised trader of welding consumables made from nickel alloy markets.
We supply a ready stock of AWS A5.14-compliant Inconel 617 welding wire in all standard diameters as an authorised exporter of nickel alloy consumables.
ERNiCrCoMo-1 is a high-performance alloy designed to create incredibly strong welds that won’t weaken or stretch under extreme heat. This Ni-Cr-Co-Mo filler carries approximately 53% Ni, 23% Cr, 12% Co, 9% Mo, and 1% Al. It remains stable and reliable between 800°C and 1100°C, resisting the typical rust and damage caused by high-temperature gases. Classified under AWS A5.14 ERNiCrCoMo-1 (UNS N06617, F-43). Typical tensile strength reaches 620 MPa (90 ksi) with optimum performance between 815 and 1150°C (1500 and 2100°F). The 12% cobalt provides solid-solution strengthening that persists where Mo-only alloys soften, while 1% aluminium forms a protective sub-layer beneath the Cr₂O₃ scale.
ERNiCrCoMo-1 is the specified matching filler for Inconel 617 base metal under ASME Code Case 1956 (Sections I and VIII) and a candidate filler for Gen IV VHTR nuclear applications. Nicorex Alloys stocks TIG rods (1.6–3.2 mm), MIG spools (0.9–1.6 mm), SAW wire, and ENiCrCoMo-1 SMAW electrodes. Industries in which it is utilised include AUSC and sCO₂ power generating, aircraft gas turbines, petrochemical reformers, and nuclear manufacturing. Each shipment includes an MTC 3.1 in accordance with EN 10204.
Inconel Filler Metal 617 Specifications
| Specification | TIG/MIG/SAW Wire | SMAW Electrode |
|---|---|---|
| AWS Specification | A5.14/A5.14M | A5.11 |
| UNS Number | N06617 | W86117 |
| AMS | 5889 | — |
| Welding Processes | GTAW, GMAW, SAW, PAW | SMAW |
| Polarity – TIG | DCEN | — |
| Polarity – MIG | DCEP | DCEP |
| Shielding Gas | TIG: 100% Argon MIG: Ar, Ar/He blends (no pure CO₂) |
N/A |
TIG rods come in diameters from 1.6 to 3.2 mm, MIG wires from 0.9 to 1.6 mm, and SAW wires vary by project.
AWS Classification Explained: ERNiCrCoMo-1
| Designation Element | Meaning |
|---|---|
| ER | Electrode/Rod: bare filler for GTAW, GMAW, SAW |
| Ni | Nickel base (~53% Ni) |
| Cr | Chromium (20–24%) |
| Co | Cobalt (10–15%): the defining element providing solid-solution strengthening above 800°C |
| Mo | Molybdenum (8–10%) |
| -1 | First alloy in the NiCrCoMo series |
ERNiCrCoMo-1 was the first AWS A5.14 filler to carry “Co” in its classification, reflecting the high cobalt content. ENiCrCoMo-1 (AWS A5.11, UNS W86117) is the SMAW electrode equivalent with F-43 grouping.
ERNiCrCoMo-1 vs ERNiCrMo-3 (Inconel 625): ERNiCrCoMo-1 contains 12% cobalt, whereas ERNiCrMo-3 has zero cobalt. ERNiCrCoMo-1 is optimised for creep resistance above 815°C; ERNiCrMo-3 is optimised for corrosion resistance below 600°C.
ERNiCrCoMo-1 vs ERNiCrWMo-1 (Haynes 230-W): Both target high-temperature service. 230-W uses tungsten (14%) for strengthening; 617 uses cobalt (12%). Haynes 230-W offers better thermal stability; Inconel 617 delivers better creep-rupture strength above 815°C.
Chemical Composition of ERNiCrCoMo-1 Weld Deposit (%)
| Specification | Nickel (Ni) | Chromium (Cr) | Cobalt (Co) | Molybdenum (Mo) | Iron (Fe) | Aluminium (Al) | Carbon (C) | Titanium (Ti) | Silicon (Si) | Manganese (Mn) | Copper (Cu) | Boron (B) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AWS A5.14 Requirement | 44.5 min | 20.0–24.0 | 10.0–15.0 | 8.0–10.0 | 3.0 max | 0.8–1.5 | 0.05–0.15 | 0.60 max | 1.0 max | 1.0 max | 0.50 max | 0.006 max | 0.03 max | 0.015 max |
| Typical | 53.0 | 22.0 | 12.5 | 9.0 | 1.0 | 1.0 | 0.07 | 0.30 | 0.1 | 0.3 | 0.05 | 0.002 | 0.005 | 0.002 |
Cobalt (10–15%) lowers stacking fault energy in the FCC nickel matrix, impeding dislocation climb and increasing creep-rupture life at elevated temperature. Aluminium (0.8-1.5%) creates an Al-rich sub-layer beneath the Cr₂O₃ scale, improving cyclic oxidation resistance. Carbon (0.05-0.15%) creates M₆C and M₂₃C₆ carbides at grain boundaries, improving creep resistance.
All-Weld-Metal Mechanical Properties of ERNiCrCoMo-1 (Inconel 617)
| Specification | Tensile Strength | Yield Strength (0.2%) | Elongation | Stress-Rupture |
|---|---|---|---|---|
| Typical (GTAW) | ~90,000 psi (~620 MPa) | ~50,000 psi (~345 MPa) | 35–40% | Optimum 815–1150°C |
Base Metal Compatibility for ERNiCrCoMo-1
Nicorex Alloys provides ERNiCrCoMo-1 filler wire for welding these base metals and dissimilar combinations.
Similar and Matching Base Metals
| Base Metal | UNS | P-No. | Application |
|---|---|---|---|
| Inconel 617 | N06617 | P-43 | Primary matching filler -ASME Code Case 1956 |
| Incoloy 800H/HT | N08810/N08811 | P-45 | High-temp creep service above 815°C |
| Inconel 600 | N06600 | P-43 | High-temperature service |
| Inconel 601 | N06601 | P-43 | Oxidation service |
Dissimilar Joints
| Joint Combination | Notes |
|---|---|
| 617 to Grade 91 (P-5B) | AUSC DMW transition -critical application |
| 617 to HP/HK cast alloys | Reformer tube joints |
| 617 to stainless steel | High-temp plant transitions |
| 617 to CrMo steels | Power plant DMW |
Recommended Welding Parameters for Inconel 617 Filler Wire
| Welding Process | Polarity | Shielding Gas / Flux | Technical Requirements |
|---|---|---|---|
| GTAW (TIG) | DCEN | 100% Argon | Current: 15–200 A. Use stringer beads and argon back-purge for root passes. |
| GMAW (MIG) | DCEP | Ar or Ar/He Blends | Transfer: Short or Spray arc. Warning: Never use pure CO2. |
| SAW / PAW | Process Dependent | Appropriate matched flux | Suitable for submerged arc and Plasma Arc Welding (PAW) overlays. |
Get INCONEL 617 Welding Wire at Competitive Prices
Industries and Applications of ERNiCrCoMo-1 Filler Metal
- AUSC boiler superheater and reheater tubing at 700°C+ rely on ERNiCrCoMo-1 for matching 617 tube-to-tube welds and DMW transitions to Grade 91. sCO₂ Brayton cycle recuperators and turbine components at 550–750°C also use this filler under ASME Code Case 1956.
- Combustor liners, transition ducts, afterburner components, and turbine seals operating to 1050°C in combustion gas environments for military and commercial engine programmes.
- Steam-methane reformer catalyst tubes and ethylene cracker radiant tubes demand carburisation and creep resistance at 850–1000°C.
- Radiant tubes, retorts, muffles, and heat treatment fixtures in carburising and nitriding atmospheres with service temperatures reaching 1150°C in oxidising environments.
- ERNiCrCoMo-1 is a candidate filler for VHTR intermediate heat exchangers operating at 850–950°C in helium coolant, joining 617 base metal in nuclear-grade fabrication.
Storage and Handling of Inconel 617 Welding Wire
Nicorex Alloys supplies ERNiCrCoMo-1 welding wire with proper packaging to maintain surface integrity. As a filler metal, ERNiCrCoMo-1 does not need rebaking. If damp, ENiCrCoMo-1 (AWS A5.11) needs drying.
Store TIG rods in sealed tubes and MIG/SAW spools in sealed packaging in a clean, dry environment (15–25°C, <60% RH). Avoid wire near carbon steel storage and grinding. Fingerprint oils contain sulphur and chlorides, which produce porosity and hot breaking.
Sulphur (cutting fluids, fingerprints), lead (paints, anti-seize), zinc (galvanised steel, zinc-rich primers), copper (backing bars, brass fittings), and low-melting-point metals need to be removed. Manage grinding dust with 10–15% cobalt in ERNiCrCoMo-1 per plant requirements.
Available Forms and Packaging of INCONEL 617 Wire
| Form | Diameter | Packaging |
|---|---|---|
| TIG Cut Lengths (rods) | 1.6, 2.0, 2.4, 3.2 mm | Sealed tubes, 914 mm (36″) standard |
| MIG Spools | 0.9, 1.0, 1.2, 1.6 mm | Standard spools (sealed) |
| SAW Wire | Per project specification | Coils/drums |
| SMAW Electrodes | ENiCrCoMo-1 (AWS A5.11) | Standard packs |
How to Order Inconel 617 Wire from Nicorex Alloys
- Specification — AWS A5.14 ERNiCrCoMo-1 or AWS A5.11 ENiCrCoMo-1; state AMS 5889 if required
- Form — TIG rod, MIG spool, SAW wire, or SMAW electrode
- Diameter — TIG 1.6–3.2 mm; MIG 0.9–1.6 mm; SAW per project spec
- Quantity — In kg or number of tubes/spools; state single-heat if needed
- Heat/Lot Traceability — Required for AUSC, VHTR, and Code Case 1956 work
- Testing — MTC 3.1 per EN 10204 standard; additional mechanical or creep testing on request
- ASME Code Case 1956 — State if compliance is required
- Packaging — Sealed tubes (TIG), sealed spools (MIG); vacuum-sealed on request
- Delivery — Domestic (India) or export; specify port or site