Nickel Alloy ERNi-1
UNS N02061 · also Nickel Filler Metal 61, Filler Metal 61
ERNi-1 is a commercially pure, titanium-deoxidized nickel filler wire (N02061, Nickel Filler Metal 61) for GTAW and GMAW of Nickel 200/201, plus surfacing and dissimilar joints that require a pure nickel deposit.
Reference datasheet — ERNi-1 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the AW condition
ERNi-1 tempers and conditions
ERNi-1 is supplied in 4 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Stress relieved | Use when the fabrication is annealed or stress-relieved after welding; strength drops toward annealed Nickel 200 with ductility gain. | 165 | 420 | 45 | 90 HB | 14 % IACS |
As-welded deposit made by GMAW (MIG) spool wire | Pick for higher deposition rate on thicker Nickel 200/201 sections and pure-nickel overlay cladding. | 305 | 460 | 33 | 108 HB | 12.5 % IACS |
AWDefault As-welded deposit | Default condition: properties of the undiluted as-deposited weld metal, no post-weld heat treatment. | 310 | 470 | 35 | 105 HB | 13 % IACS |
As-welded deposit made by GTAW (TIG) with Ar shielding | Pick for thin sections, root passes and highest-purity low-porosity nickel deposits. | 320 | 480 | 37 | 105 HB | 13 % IACS |
Supply forms, finishes and certifications
Ways ERNi-1 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
WIRE-CD | Wire/rod as supplied, cold drawn and cleaned | Supply form |
What is ERNi-1?
ERNi-1 is a commercially pure, titanium-deoxidized nickel filler wire (N02061, Nickel Filler Metal 61) for GTAW and GMAW of Nickel 200/201, plus surfacing and dissimilar joints that require a pure nickel deposit. Engineers use it for caustic and alkali resistance; as-welded deposits give about 310 MPa yield, 470 MPa tensile, 35% elongation and 105 HB, and the wire is stocked as cold-drawn spools and cut lengths. Maximum service temperature is about 425 °C and deposits are very sensitive to sulfur, lead and oil contamination. Where higher strength or oxidation resistance is needed, a Ni-Cr filler such as ERNiCr-3 is the usual step up. ERNi-1 has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,435°C (2,615 °F). ERNi-1 has a yield strength of 310 MPa (45 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 74% of nickel alloy grades. Elongation at break is 35% and the elastic modulus is 205 GPa (29.7 Msi).
What is ERNi-1 used for?
- Nickel 200/201 vessels
- caustic soda handling equipment
- electronic and battery component welding
- cladding overlays
Advantages
- Conducts heat well — 55 W/m·K (31.8 BTU/hr·ft·°F), better than 97% of nickel alloy grades
- High electrical conductivity — 13 % IACS, better than 97% of nickel alloy grades
- Easy to machine — 35/100, better than 97% of nickel alloy grades
- Readily welded — 88/100, better than 92% of nickel alloy grades
- Forms and bends easily — 78/100, better than 87% of nickel alloy grades
Limitations
- Limited service temperature — 425°C (797 °F), worse than 90% of nickel alloy grades
- Needs corrosion protection — 66/100, worse than 84% of nickel alloy grades
ERNi-1 properties
Typical room-temperature values for ERNi-1-AW; bars are the position among nickel alloy grades.
Physical3
ERNi-1 has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,435°C (2,615 °F).
Mechanical16
ERNi-1 has a yield strength of 310 MPa (45 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 74% of nickel alloy grades. Elongation at break is 35% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
ERNi-1 is rated for continuous service to 425°C (797 °F). It conducts heat at 55 W/m·K (31.8 BTU/hr·ft·°F), better than 97% of nickel alloy grades. Thermal expansion is 13.3 µm/m·K (7.39 µin/in·°F).
Electrical3
ERNi-1 conducts electricity at 13 % IACS, better than 97% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is good (66/100), worse than 84% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNi-1 takes about 165 MJ of energy and emits 14.5 kg of CO₂ — more than 54% of nickel alloy grades. Typical recycled content is 25%.
Manufacturability8
ERNi-1's machinability is fair (35/100, better than 97% of nickel alloy grades); weldability excellent (88/100); formability very good (78/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the nickel alloy family
Yield strength against density for every nickel alloy grade FabDigit runs. ERNi-1 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ERNi-1
Is ERNi-1 easy to machine?
Nickel deposits are gummy and work-hardening — use sharp positive-rake carbide, heavy rigid setups, low speed with high feed and flood coolant; avoid dwelling.
Can ERNi-1 be welded?
Use DCEN GTAW or spray/pulsed GMAW with pure Ar (Ar+He for thick sections), stringer beads, low heat input, interpass below ~150 °C; joints must be ground bright and degreased since sulfur, lead, paint or oil cause severe hot cracking.
Can ERNi-1 be formed, bent or molded?
Supplied as cold-drawn wire/rod; straighten gently and keep spools clean and dry — kinks and surface contamination are the main feedability and porosity causes.
ERNi-1 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Tideoxidizer / nitride former, controls porosity | 2 – 3.5 | 2.8 |
| C | ≤ 0.15 | 0.05 |
| Mn | ≤ 1 | 0.3 |
| Fe | ≤ 1 | 0.4 |
| Si | ≤ 0.75 | 0.2 |
| Cu | ≤ 0.25 | 0.05 |
| Al | ≤ 1.5 | 0.3 |
| S | ≤ 0.02 | 0.01 |
| P | ≤ 0.03 | 0.01 |
| Other elements, total | ≤ 0.5 | |
| NiNi + Co, 93.0 % min per AWS A5.14 | ≥ 93 (balance) |
What surface finishes work on ERNi-1?
Pickle or wire-brush (stainless brush) to remove Ti-rich oxide before further passes; weld metal takes a good polish and can be electroplated, but is not anodizable and remains ferromagnetic.
Surface treatments FabDigit runs on nickel alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Plating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Nickel Alloy ERNi-1 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- N02061
- Trade names
- Nickel Filler Metal 61Filler Metal 61
- Also called
- AWS A5.14 ERNi-1
How much does ERNi-1 cost?
ERNi-1 is a high-cost nickel alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
ERNi-1 — frequently asked
What is ERNi-1 used for?
ERNi-1 is typically used for nickel 200/201 vessels, caustic soda handling equipment, electronic and battery component welding and cladding overlays. In short: pure nickel weld deposit; first choice for caustic service; lowest-strength nickel filler.
What is the yield strength of ERNi-1?
ERNi-1 has a typical yield strength of 310 MPa (45 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 74% of nickel alloy grades. Strength varies by condition: see the 4 listed tempers.
Is ERNi-1 easy to machine?
Not especially — machinability is rated fair (35/100, better than 97% of nickel alloy grades). Nickel deposits are gummy and work-hardening — use sharp positive-rake carbide, heavy rigid setups, low speed with high feed and flood coolant; avoid dwelling.
Can ERNi-1 be welded?
Yes — weldability is rated excellent (88/100). Use DCEN GTAW or spray/pulsed GMAW with pure Ar (Ar+He for thick sections), stringer beads, low heat input, interpass below ~150 °C; joints must be ground bright and degreased since sulfur, lead, paint or oil cause severe hot cracking.
What surface finishes work on ERNi-1?
Pickle or wire-brush (stainless brush) to remove Ti-rich oxide before further passes; weld metal takes a good polish and can be electroplated, but is not anodizable and remains ferromagnetic.
Can ERNi-1 be formed, bent or molded?
Supplied as cold-drawn wire/rod; straighten gently and keep spools clean and dry — kinks and surface contamination are the main feedability and porosity causes.
What is the maximum service temperature of ERNi-1?
ERNi-1 is rated for continuous use to about 425°C (797 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ERNi-1-AW and ERNi-1-SR?
AW is the default condition — default condition: properties of the undiluted as-deposited weld metal, no post-weld heat treatment. SR: use when the fabrication is annealed or stress-relieved after welding; strength drops toward annealed Nickel 200 with ductility gain. Yield strength is 310 MPa in AW versus 165 MPa in SR.
How much does ERNi-1 cost?
ERNi-1 is a high-cost nickel alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- AWS A5.14/A5.14M — Nickel and Nickel-Alloy Bare Welding Electrodes and Rods — American Welding Society (2018)
- ASTM B863 / UNS N02061 designation data — ASTM (2020)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (Nickel and Nickel Alloys) — ASM International (2005)
- ASM Handbook Vol.6 — Welding, Brazing, and Soldering (Nickel alloy welding) — ASM International (1993)
- Nickel Filler Metal 61 (ERNi-1) welding consumable datasheet — Special Metals Welding Products / Voestalpine Böhler Welding (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.