Inconel 625 Filler Wire
ERNiCrMo-3 / AWS A5.14 – Inconel 625 Welding Wire, TIG Rod, and MIG Wire Supplier in India – UNS N06625 / WNR 2.4856
Kalpataru Piping Solutions supplies Inconel 625 filler wire (AWS A5.14 ERNiCrMo-3) from stock in Mumbai for TIG, MIG, plasma arc, and SAW welding of UNS N06625 / WNR 2.4856 base material. Our Inconel 625 welding wire is manufactured to ASTM B166 / ASME SB166 and is available as bare wire (coil and spool for MIG/MAG), cut TIG rod (straight lengths), and spooled MIG wire from 0.8 mm to 4.0 mm diameter. This inconel welding wire range covers TIG rod, MIG spool wire, and SMAW electrodes for all Inconel 625 welding applications.
Inconel 625 filler wire does not need post-weld heat treatment. Niobium stabilisation stabilisation eliminates the sensitisation of the heat-affected area and is therefore the choice of consumable when it comes to offshore, chemical manufacturing, and aerospace weld repair. The reason why these Inconel 625 filler wires are used is that they are not sensitive to intergranular corrosion following heating in the carbide precipitation range between 425 degrees C and 850 degrees C.
UNS N06625 Inconel 625 is a wire alloy that is strengthened through solid-solution hardening by molybdenum and niobium. It does not need any precipitation hardening heat treatment. This is because the 625 Inconel welding wires were suitable in use in the application that demanded good mechanical properties at high temperatures due to the high carbon content. Inconel 625 wires have a high level of resistance to various atmospheric, chemical, textile, petroleum industry and food industry exposures.
We are also selling UNS N06625 filler wires which do not need to be annealed after welding and are commonly used in heavy-gauge parts where they must be immune to carbide precipitation. We have stocked TIG rod and MIG spool sizes of most common sizes in ready inventory that can be dispatched within the same week in Mumbai as an Inconel 625 wires stockist. Exporting since 1995 to 40 or more countries with EN 10204 3.1 MTC and NABL-approved test report on each order.
Inconel 625 Wire – Diameters, Forms and Packaging
Inconel 625 wire comes in bare TIG rod (0.8 mm to 4.0 mm), MIG spool wire (0.8 mm to 1.6 mm) and coiled wire. Inconel 625 strip wire (flat wire) comes in 10 mm wide and 0.5 mm to 2.0 mm thick to allow automated overlay cladding. Filler wire Inconel 625 filler wire (also known by other terms such as filler wire and as an alternate term to filler wire) is offered in GTAW, GMAW and plasma arc processes ranging in diameter between 0.8 mm and 4.0 mm. The welding wire of choice in overlaying carbon steel parts in chemical processing and offshore use is alloy 625 (ERNiCrMo-3).
Inconel 625 is a corrosion resistant alloy wire, and as a weld overlay cladding material, it is used in the weld overlay of seawater-exposed surfaces, equipment used in acid resistant chemical processes. Filler metal Inconel 625 filler metal (ERNiCrMo-3) is the standard filler metal used to weld UNS N06625 base material used in offshore welding, chemical welding, and aerospace welding. Inconel filler metal 625 is also used in oil and gas and offshore fabrication standards such as NACE MR0175 of sour service weld repairs.
| Wire Form | Diameter / Size | Standard Length / Spool | Primary Application |
| TIG Rod (GTAW) | 1.0, 1.6, 2.4, 3.2, 4.0 mm | 914 mm or 1000 mm per rod | Root and precision TIG passes |
| MIG Spool Wire (GMAW) | 0.8, 1.0, 1.2, 1.6 mm | 1 kg, 5 kg, 15 kg, 33 kg spools | Fill and cap MIG passes |
| Coil Wire | 0.8 mm to 4.0 mm | As per client requirement | Automated welding systems |
| Flat Wire (Strip) | Width up to 10 mm, thickness 0.5-2.0 mm | Coil form | Automated overlay cladding |
Inconel 625 Filler Wire Specifications
The AWS filler wire classification for Inconel 625 is ERNiCrMo-3 per AWS A5.14 / SFA5.14. All material is supplied with EN 10204 3.1 mill test certificates and NABL-approved test reports confirming chemical composition and mechanical properties to specification.
| AWS Classification | ERNiCrMo-3 per AWS A5.14 / SFA5.14 |
| ASTM Standard | ASTM B166 / ASME SB166 |
| Dimensions | ANSI/AWCI-01-1992 and ASTM E2016-11 |
| Process Compatibility | GTAW (TIG), GMAW (MIG), FCAW, Plasma Arc |
| Diameter Range | 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm, 4.0 mm |
| Rod Length (TIG) | 914 mm (36″) or 1000 mm standard |
| Spool Sizes (MIG) | 1 kg, 5 kg, 15 kg, 33 kg |
| Length (Cut Rod) | 100 mm to 6000 mm |
| Packaging | Vacuum-sealed with inert gas purge, moisture-proof |
| Shielding Gas (GTAW) | 100% Argon |
| Shielding Gas (GMAW) | Argon/He mix (75/25) or 100% Argon |
| Specialize | Filler Wire, Coil Wire, Spool Wire, Flat Wire |
Inconel 625 Filler Wire Chemical Composition
The Inconel 625 filler wire chemical composition is defined by AWS A5.14 ERNiCrMo-3. Molybdenum (Mo: 8.0-10.0%) and Niobium plus Tantalum (Nb+Ta: 3.15-4.15%) are the defining alloying elements that differentiate Inconel 625 from lower-alloy nickel grades. Note: No copper (Cu) or nitrogen (N) specification applies for UNS N06625.
| Grade | Ni | Cr | Mo | Nb+Ta | Fe | C | Mn | Si | S | Al/Ti |
| Inconel 625 | 58.0% min | 20.0-23.0% | 8.0-10.0% | 3.15-4.15% | 5.0% max | 0.10% max | 0.50% max | 0.50% max | 0.015% max | 0.40% max each |
Inconel 625 Filler Wire Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
| 8.4 g/cm3 | 1350 deg C (2460 deg F) | Psi: 135,000 | MPa: 930 | Psi: 75,000 | MPa: 517 | 42.5% |
Welding Inconel 625 – TIG, MIG and SMAW Process Guide
Inconel 625 TIG wire (ERNiCrMo-3) is the first-choice consumable for root and precision passes. Inconel 625 MIG wire is used for fill and cap passes on heavier sections. For field repair welding, ENiCrMo-3 coated electrode is used.
Inconel 625 welding does not require post-weld heat treatment. The niobium content stabilises the heat-affected zone against sensitisation, maintaining full corrosion resistance at the weld. Welding Inconel 625 to itself or to carbon steel, stainless steel, or copper-nickel alloys is straightforward using ERNiCrMo-3 filler wire with no preheat requirements for most applications.
Inconel 625 TIG wire is available in 1.0 mm, 1.6 mm, 2.4 mm, and 3.2 mm diameters. Shielding gas for GTAW: 100% Argon. No preheat required for most applications. Inconel 625 MIG wire on 15 kg spool in 0.8 mm to 1.6 mm diameter. Shielding gas for GMAW: Argon/He 75/25 mix recommended for spray transfer on sections over 6 mm.
| Parameter | GTAW (TIG) | GMAW (MIG) | SMAW (Electrode) |
| AWS Designation | ERNiCrMo-3 | ERNiCrMo-3 | ENiCrMo-3 |
| Wire/Rod Form | Straight cut rod | Spool wire | Coated electrode |
| Diameter Range | 1.0 mm to 4.0 mm | 0.8 mm to 1.6 mm | 2.5 mm to 5.0 mm |
| Shielding Gas | 100% Argon | Ar/He 75/25 mix | Not required |
| Current Type | DCEN | DCEP | DCEP |
| Best Use | Root and precision passes | Fill and cap passes | Field and maintenance |
| Preheat Required | No (most applications) | No (most applications) | No (most applications) |
Inconel 625 Welding Electrode (ENiCrMo-3) vs Filler Wire (ERNiCrMo-3)
Inconel 625 welding electrode (ENiCrMo-3) is the SMAW coated electrode form, distinct from ERNiCrMo-3 filler wire used in TIG and MIG processes. Users searching for the welding electrode form should note: ENiCrMo-3 is the AWS designation for the coated SMAW electrode, while ERNiCrMo-3 is the designation for the bare wire or rod used in GTAW and GMAW processes.
Both ERNiCrMo-3 and ENiCrMo-3 deposit the same Inconel 625 weld metal. The choice of form depends on the welding process: TIG and MIG processes use filler wire (ERNiCrMo-3), while on-site field and maintenance welding typically uses the coated SMAW electrode (ENiCrMo-3). For SMAW coated electrodes (ENiCrMo-3), please contact us for availability and pricing.
Inconel 625 Filler Rod Applications
Inconel 625 filler rods and welding wires are widely used in demanding industries due to their excellent corrosion resistance, high strength, and superior performance in extreme environments.
- Used for TIG (GTAW) welding of offshore piping, chemical reactor vessels, heat exchangers, and aerospace components
- Inconel 625 TIG rod (ERNiCrMo-3) supplied in 914 mm and 1000 mm straight lengths, vacuum-sealed in plastic tubes
- Available as alloy 625 wire in coil form for automated TIG welding systems
- Inconel 625 wire alloy (UNS N06625) specified for oil & gas fabrication and subsea piping
- Suitable for NACE MR0175 sour service applications
- Offshore pipeline and riser welding
- Heat exchanger tube-to-tubesheet joint welding
- Aerospace exhaust and combustion component repair
- Chemical process reactor vessel fabrication
- Seawater system cladding and overlay welding on carbon steel substrates
Inconel 625 Filler Wire Code and AWS Designation
AWS A5.14 / SFA5.14 Inconel 625 has an AWS filler wire code of ERNiCrMo-3. The break down of the inconel filler wire code is as follows; the prefix ER represents electrode or rod to be welded; Ni means nickel base alloy; CrMo means chromium and molybdenum as the primary alloying additions and 3 is the sequential code used to represent this type of composition in the nickel alloy welding electrode and rod classification.
In European standards, the corresponding name of Inconel 625 filler wire is W NiCr21Mo9Nb per EN ISO 18274. Inconel 625 base material and filler metal have a UNS number of N06625. The Werkstoff number is 2.4856. The standard classification which includes nickel and nickel-alloy bare welding electrodes and rods, including ERNiCrMo-3 wire, is AWS A5.14.
Equivalent Grades for Inconel 625 Filler Wire
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NA 21 | XH75MBТЮ | NC22DNB4M | NiCr22Mo9Nb |
Inconel 625 Filler Wire Price in India – April 2026
Indicative Inconel 625 filler wire prices per kg are listed below. Prices are LME-linked and reviewed monthly. As a stocking Inconel 625 filler wire dealer and direct manufacturer in India, we offer competitive per-kg pricing with 1-business-day quotation turnaround. Submit an RFQ for a firm price valid 7 to 14 business days.
| Wire Form | INR per kg (Indicative) | USD per kg (Indicative) |
| TIG Rod 1.6 mm to 3.2 mm | INR 4,500 to 6,500 | USD 54 to 78 |
| MIG Spool Wire 1.2 mm | INR 5,000 to 7,000 | USD 60 to 84 |
| Flat / Strip Wire | Price on request | Price on request |
Note: Prices are indicative only and subject to LME fluctuation. Final pricing is provided on the RFQ. Minimum order quantities may apply for flat wire and specialty forms.
As a certified Inconel 625 wire supplier and ERNiCrMo-3 exporter, we supply to 40 plus countries with EN 10204 3.1 MTC. Contact us as your Inconel 625 wires supplier in India with ex-stock inventory. As an Inconel 625 wires stockist in Mumbai, we maintain ready inventory of common TIG rod and MIG spool sizes for same-week dispatch.
Enquire Now - Get a Quote for Inconel 625 Filler Wire
As an Inconel 625 wires stockist and ERNiCrMo-3 exporter in India, Kalpataru Piping Solutions maintains ready inventory of all standard wire diameters and spool sizes. Same-week dispatch for ex-stock sizes. EN 10204 3.1 MTC on every order. Export to 40 plus countries. Submit your RFQ for firm pricing valid 7 to 14 business days.
Contact Us: https://kalpatarupiping.com/contact-us/
FAQs – Inconel 625 Filler Wire
What is the AWS filler wire of Inconel 625 filler wire?
ERNiCrMo-3 per AWS A5.14 / SFA5.14. In European standards, this is named W NiCr21Mo9Nb according to EN ISO 18274.
What is the difference between ERNiCrMo-3 and ENiCrMo-3?
The wire and rod version of the TIG and MIG processes (GTAW/GMAW) is called EERNiCrMo-3. ENiCrMo-3 is the electrode coated form that is used as a SMAW ( Stick ) field welding electrode. They both lay the same Inconel 625 weld metal composition.
Should Inconel 625 be post-weld heat treated (PWHT)?
No. Inconel 625 filler wire contains niobium that stabilises the heat-affected zone against sensitisation. Standard applications do not need any PWHT and therefore it is the consumable of choice in repair welding of offshore and chemical processes.
What is the code of the filler wire of Inconel 625?
ERNiCrMo-3 is the filler wire code of inconel. The prefix ER refers to electrode or rod welding, Ni refers to nickel base, CrMo refers to chromium-molybdenum alloying and 3 is the sequence designation of this type of composition.
Which is the correct Inconel 625 chemical composition of the filler wire?
Ni: 58.0% min, Cr: 20.0-23.0%, Mo: 8.0-10.0%, Nb+Ta: 3.15-4.15%, Fe: 5.0% max, C: 0.10% max, Mn: 0.50% max, Si: 0.50% max, S: 0.015% max, Al: 0.40% max, Ti: 0.40% max.
Which shielding gas is suggested with Inconel 625 TIG welding?
With Inconel 625 TIG wire, 100% Argon is suggested in GTAW (TIG) welding. In the case of GMAW (MIG) welding, a mix of Argon/Helium 75/25 should be used on areas that are more than 6 mm in spray transfer.
Is Inconel 625 filler wire synonymous with Inconel 625 welding electrode?
No. Inconel 625 welding electrode (ENiCrMo-3) is on-site and maintenance SMAW welding electrode. Inconel 625 filler wire (ERNiCrMo-3) is a TIG and MIG wire that is not coated. They both deposit the same weld metal.
What are the sizes and spool choices?
TIG rod is available in 1.0 mm, 1.6 mm, 2.4 mm, 3.2 mm, and 4.0 mm diameters in 914 mm and 1000 mm lengths. MIG spool wire is available in 0.8 mm, 1.0 mm, 1.2 mm, and 1.6 mm diameters on 1 kg, 5 kg, 15 kg, and 33 kg spools.
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