INCONEL® 82 Welding Wire

ERNiCr-3 Welding Wire (Filler Metal 82) Supplier in Mumbai, India

Name: INCONEL® 82 Welding Wire
Brand: Nicorex Alloys

Nicorex Alloys is an ISO 9001 and ISO 14001 certified supplier and stockist of ERNiCr-3 (Filler Metal 82) welding wire in Mumbai, India. We provide these welding wires as classified under AWS A5.14 (UNS N06082, AMS 5836, ASME SFA-5.14, EN ISO 18274 S Ni 6082, DIN W.Nr 2.4806, F-43).

This Ni-Cr system contains ~72% Ni, 20% Cr, 3% Mn, and 2.5% Nb with no intentional molybdenum. High manganese at 2.5–3.5% sets ERNiCr-3 apart from every other nickel filler. Niobium at 2–3% strengthens the weld deposit and resists hot cracking, while service temperature reaches ~760°C (1400°F) in oxidising environments. It improves wetting, fluidity, and bead appearance while reducing porosity risk. The filler supports GTAW, GMAW, SAW, and PAW, the widest process range of any nickel alloy consumable. ERNiCr-3 welds Inconel 600, 601, 690, Incoloy 800/800H/800HT, Alloy 330, Nickel 200, Monel 400, stainless steels, and carbon steels, making it one of the most versatile nickel fillers for dissimilar metal joints. We stock this nickel chromium filler wire as TIG rods, MIG spools, and SAW coils for immediate dispatch with MTC 3.1 per EN 10204.

Nicorex Alloys exports ERNiCr-3 filler wire for nuclear power, petrochemical, power generation, oil and gas, cryogenic LNG, and chemical processing fabricators. Low cobalt (≤0.12%) makes the wire suitable for nuclear-grade service. Every shipment carries MTC 3.1 per EN 10204, with PMI and third-party inspection available on request.

Alloy 82 Welding Wire Specifications

The specifications of ERNiCr- Welding Wire (Alloy 82), along with its AWS classification, shielding gas and AMS, are listed below:

AWS Classification	A5.14 ERNiCr-3
ASME SFA	SFA-5.14 ERNiCr-3
AMS	5836
UNS Number	N06082
Welding Processes	GTAW (DCEN), GMAW (DCEP), SAW, PAW
Shielding Gas	100% Ar (GTAW/PAW); Ar or Ar/He (GMAW)
SAW Flux	INCOFLUX NT100 (groove and surfacing)

AWS Classification Explained: ERNiCr-3 (TIG/MIG Wire)

The AWS A5.14 designation ERNiCr-3 breaks down as follows:

Designation Element	Meaning
ER	Electrode/Rod: bare filler metal for GTAW, GMAW, and SAW
Ni	Nickel base: 67% minimum Ni content
Cr	Chromium as primary alloying element: 18-22%
-3	Third alloy in the NiCr series, matching Inconel 82 (Ni-20Cr-3Mn-2.5Nb)

ERNiCr-7 (Inconel 52) has ~30% Cr. ERNiCr-3 contains no molybdenum and costs less than ERNiCrMo-3 (625): preferred when Mo-bearing corrosion resistance is not required, which covers most structural DMW applications.

Chemical Composition of ERNiCr-3 Weld Deposit (%)

The chemical composition of the ERNiCR-3 Weld Deposit, along with its proportion in percentage, is listed below in the table:

Specification	Nickel (Ni)	Chromium (Cr)	Manganese (Mn)	Iron (Fe)	Niobium + Tantalum (Nb+Ta)	Titanium (Ti)	Silicon (Si)	Carbon (C)	Copper (Cu)	Cobalt (Co)	Phosphorus (P)	Sulfur (S)
AWS Requirement	67.0 min	18.0–22.0	2.5–3.5	3.0 max	2.0–3.0 (Ta 0.30 max)	0.75 max	0.50 max	0.10 max	0.50 max	0.12 max	0.03 max	0.015 max
Typical	~72%	20.0	3.0	1.5	2.5	0.3	0.25	0.05	0.1	0.05	0.01	0.005

*Co restricted to 0.12% max for nuclear applications (Co-60 activation concern). Standard commercial heats may contain higher Co. ERNiCr-3 contains high manganese and niobium for smooth welding, strong deposits, and reduced hot cracking. It has no molybdenum, so it does not resist pitting or crevice corrosion. Low iron keeps it a nickel-base alloy, and very low cobalt makes it suitable for nuclear applications.

All-Weld-Metal Mechanical Properties of ERNiCr-3

Nicorex Alloys provides ERNiCr-3 filler wire meeting the minimum and typical mechanical values mentioned below in the table.

Specification	Tensile Strength	Yield Strength (0.2%)	Elongation
Minimum (AWS A5.14)	80,000 psi (552 MPa)	—	30%
Typical	85,000–95,000 psi (586–655 MPa)	45,000–55,000 psi (310–379 MPa)	35–45%

ERNiCr-3 (80 ksi / 552 MPa) has lower tensile strength than ERNiCrMo-3/625 (110 ksi) by design, prioritising broad base-metal compatibility. Its FCC austenitic structure provides excellent cryogenic toughness for 9% Ni LNG steels. Above 760°C, use HAYNES 230-W or HASTELLOY X fillers.

Base Metal Compatibility for ERNiCr-3 Filler Metal

ERNiCr-3 includes a wider base metal range of any nickel alloy filler in our portfolio.

Matching and Similar Base Metals

Base Metal	UNS	P-No.	Application
Inconel 600	N06600	P-43	Primary matching filler
Inconel 601	N06601	P-43	Matching
Inconel 690	N06690	P-43	Compatible (FM 52 also used)
Incoloy 800	N08800	P-45	Matching
Incoloy 800H/800HT	N08810/N08811	P-45	Matching
Incoloy 825	N08825	P-45	Compatible
Alloy 330	N08330	P-45	Compatible
Nickel 200/201	N02200/N02201	P-41	Compatible

Dissimilar Metal Joints (Primary Application of ERNiCr-3)

Joint Combination	Notes
Inconel alloys to carbon steel	Standard application: petrochemical, power
Inconel alloys to stainless steel	Standard application
Stainless steel to carbon steel	Via Ni alloy butter/overlay
Incoloy alloys to stainless steel	Standard application
Monel 400 to carbon steel	Marine and chemical service
Nickel 200 to stainless steel	Chemical processing equipment
9% Ni steel to 9% Ni steel	Cryogenic LNG service
Weld overlay on carbon steel	Corrosion/oxidation protection layer

WPS Note: F-43 grouping, same as ERNiCrMo-3 (625) and ERNiCrMo-4 (C-276). A welder qualified on any F-43 filler is qualified for ERNiCr-3.

Recommended Welding Parameters for ERNiCr-3 Filler Wire

Nicorex Alloys supplies ERNiCr-3 filler wire for four welding processes: GTAW, GMAW, SAW, and PAW, with a wide process range of any nickel alloy filler in our range.

Parameter	Details
GTAW (TIG)	DCEN polarity; 100% Argon shielding at 25 cfh (≈12 L/min); back purge required for root passes
GMAW (MIG)	DCEP polarity; Argon or Argon/Helium blends; short-arc or spray transfer
SAW	Used with INCOFLUX NT100 flux for groove welding and surfacing; ERNiCr-3 is one of the few nickel fillers approved for SAW
PAW	Suitable for overlay and joining applications
Preheat	Not required
Interpass Temperature	≤175 °C (350 °F); higher than the ≤93 °C limit used for most Ni-Cr-Mo fillers due to improved hot-cracking resistance from higher Mn
PWHT (Post-Weld Heat Treatment)	Not required; if stress relief is needed, follow the lower-alloy base material requirements
Joint Preparation & Cleaning	Clean with solvent, then stainless steel brushes only; do not use carbon steel brushes

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Industries and Applications of ERNiCr-3 Filler Metal

Nicorex Alloys exports ERNiCr-3 welding wire to fabricators across nuclear, petrochemical, power, oil and gas, cryogenic, and chemical processing sectors.

Nuclear Power: Reactor vessel cladding, steam generator tube-to-tubesheet welds, pressuriser nozzle welds, and safe-end dissimilar metal welds.
Petrochemical and Refining: Furnace tube welding on Incoloy 800H/800HT superheater tubes, reformer pigtails, and dissimilar joints between Inconel alloys and carbon steel piping.
Power Generation: Superheater and reheater tube welding, boiler tube overlay, and dissimilar metal welds between ferritic and austenitic materials in fossil and combined-cycle plants.
Oil and Gas: Weld overlay cladding of carbon steel vessels, piping, and valves for sour service. Dissimilar joints in subsea and topside equipment.
Cryogenic and LNG: Welding 9% Ni steels (ASTM A553) for LNG storage tanks per API 620 Appendix Q. ERNiCr-3 provides impact toughness exceeding 135 J at –196°C (77 K).
Chemical Processing: Heat exchangers, reactor vessels, and piping in alkaline and mildly oxidising environments. Incoloy 825 welding for sulfuric acid plants.

Storage and Handling of ERNiCr-3 Welding Wire

ERNiCr-3 is a bare (uncoated) nickel alloy filler wire that requires no re-baking. The SMAW equivalent ENiCrFe-3 (Filler Metal 182) does require drying if exposed to moisture.

Store at 15–25°C, below 60% RH, sealed and away from carbon steel storage areas. Handle with clean gloves and dedicated stainless steel tools. When storing and handling ERNiCr-3 welding wire, you must guard against contamination from sulfur, lead, zinc, copper, and tin/bismuth/antimony. Clean the base metal 25 mm on each side of the joint with solvent, then mechanical abrasion. Shelf life is indefinite if sealed.

For nuclear-grade ERNiCr-3, maintain heat-lot segregation and chain-of-custody documentation per ASME III NCA-3800 / NB-2400 throughout storage.

Available Forms and Packaging of ERNiCr-3 Welding Wire

Nicorex Alloys stocks ERNiCr-3 filler wire in all standard product forms, including SAW coils that are rarely offered with other nickel fillers.

Form	Diameter Range	Packaging
TIG Cut Lengths	0.76–4.70 mm	914 mm (36″) tubes, 5 kg packs
MIG Spools	0.76–2.40 mm	15 kg spools, 12.5 kg reels
SAW Coils	1.6–3.2 mm	27 kg (60 lb) coils, drums
Reels	0.76–4.00 mm	Standard reels
Coils	0.76–4.00 mm	Standard coils

How to Order ERNiCr-3 Welding Wire from Nicorex Alloys

To order ERNiCr-3 (Filler Metal 82) welding wire, provide these 10 important details:

Specification: AWS A5.14 ERNiCr-3 or AMS 5836. State if ASME III nuclear grade is required.
Form — TIG rod, MIG spool, SAW coil/reel, or standard coil
Diameter — TIG 0.76–4.70 mm; MIG 0.76–2.40 mm; SAW per project specification
Quantity — In kg or number of tubes/spools/coils; single-heat lots if required
Cobalt Restriction — State if Co ≤0.12% max is required (nuclear applications)
Heat/Lot Traceability — Required for nuclear, ASME III, and critical service
Testing — MTC 3.1 per EN 10204 (standard); additional PMI, mechanical testing, or TPI on request
Nuclear Requirements — ASME III NCA-3800 / NB-2400 compliance, CMTR with full traceability
Packaging — Sealed tubes (TIG), sealed spools (MIG), coils (SAW); vacuum-sealed if required
Delivery — Domestic India

Frequently Asked Questions

What is the price of Inconel 82 Welding Wire per kg in India?

ERNiCr-3 (Inconel 82) welding wire in India typically costs ₹2,400–₹3,500 per kg, depending on diameter, form (TIG/MIG/SAW), and quantity, with discounts available from Nicorex Alloys.

What is the difference between ERNiCr-3 (Alloy 82) and ENiCrFe-3 (Alloy 182)?

ERNiCr-3 is a low-iron, bare nickel‑chromium wire for TIG, MIG, and SAW, with more niobium and manganese for cleaner, more corrosion‑resistant welds. ENiCrFe-3 is a higher‑iron, flux‑coated stick electrode for SMAW, suited to portable welding.

Can ERNiCr-3 be used for Welding 9% Nickel Steel (ASTM A553) for LNG Tanks?

Yes, ERNiCr-3 is a standard filler for 9% Ni steel LNG tanks (API 620 Appendix Q), giving Charpy impact toughness above 135 J at –196°C.

Why is ERNiCr-3 preferred over Stainless Steel Fillers for Dissimilar Metal Welds?

ERNiCr-3’s intermediate CTE (~13–14×10⁻⁶/°C) and resistance to carbon migration reduce thermal stresses and brittle zones compared with stainless fillers like ER309L.

What Shielding Gas is recommended for GMAW with ERNiCr-3?

Use 100% Ar, Ar/He blends, or Ar tri-mixes with ≤2.5% CO₂ (never pure CO₂), typically at 35–50 cfh (16–24 L/min), with inter-pass grinding if CO₂ is present.

Does Nicorex Alloys supply ERNiCr-3 with Nuclear Quality Documentation?

Yes, Nicorex Alloys supplies ERNiCr-3 with MTC 3.1 and, for nuclear projects, NQA-1 compliant CMTRs, full heat traceability, extra chemistry, and witnessed tests.

When not to use ERNiCr-3 Welding Wire?

Avoid ERNiCr-3 in aggressive reducing acids, high-temperature oxidation above 760°C, PWSCC-critical Inconel 690 welds, and chloride-pitting seawater service; use Mo-bearing or high-temperature nickel alloys instead.