Nickel Alloy ERNiCrMo-3
UNS N06625 · ASTM A5.14 ERNiCrMo-3 · EN 2.4831 · ISO Ni 6625 · also Inconel Filler Metal 625, Filler Metal 625
ERNiCrMo-3 is a bare Ni-Cr-Mo-Nb filler wire matching Alloy 625 composition (UNS N06625, 2.4831) under AWS A5.14, used for GTAW, GMAW, PAW and SAW of 625, stainless steels and dissimilar joints.
Reference datasheet — ERNiCrMo-3 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
ERNiCrMo-3 tempers and conditions
ERNiCrMo-3 is supplied in 5 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
weld metal solution annealed ≈1100–1150 °C, water quenched | Choose when the fabrication is solution annealed after welding to homogenize Nb segregation and maximize ductility/corrosion resistance. | 400 | 760 | 50 | 180 HB | 1.4 % IACS |
AW | For thick-section joints and large-area cladding; flux choice controls Nb/Si pickup and hot-cracking risk. | 470 | 770 | 33 | 200 HB | 1.3 % IACS |
Stress relieved weld metal | Used when the base metal dictates a stress-relief cycle; mild strength drop, watch for carbide/δ-phase toughness loss on long holds. | 470 | 790 | 38 | 200 HB | 1.3 % IACS |
AW | Pick for high-deposition semi-automatic/robotic welding and overlay; slightly lower ductility than GTAW due to higher heat input. | 490 | 780 | 36 | 205 HB | 1.3 % IACS |
AWDefault As-welded deposit | Default condition: properties of the as-deposited GTAW weld metal, no post-weld heat treatment. | 500 | 800 | 40 | 210 HB | — |
Supply forms, finishes and certifications
Ways ERNiCrMo-3 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 | Supply form |
What is ERNiCrMo-3?
ERNiCrMo-3 is a bare Ni-Cr-Mo-Nb filler wire matching Alloy 625 composition (UNS N06625, 2.4831) under AWS A5.14, used for GTAW, GMAW, PAW and SAW of 625, stainless steels and dissimilar joints. As-welded deposits reach about 500 MPa yield, 800 MPa tensile, 40% elongation and 210 HB (95 HRB), with service to 900 °C and a corrosion resistance rating of 90/100. It is the default consumable for corrosion-resistant overlay on carbon steel, though deposits work-harden severely and dilution must be controlled. ENiCrMo-3 is the covered-electrode equivalent for manual SMAW. ERNiCrMo-3 has a density of 8.44 g/cm³ (0.305 lb/in³), heavier than 60% of nickel alloy grades. It melts at 1,290°C (2,354 °F). ERNiCrMo-3 has a yield strength of 500 MPa (72.5 ksi) and a tensile strength of 800 MPa (116 ksi) — stronger than 73% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 205 GPa (29.7 Msi).
What is ERNiCrMo-3 used for?
- pipe welding root passes
- overlay cladding on carbon steel
- subsea equipment welding
- dissimilar metal joining
Advantages
- Readily welded — 95/100, better than 100% of nickel alloy grades
- Tough — resists crack growth — 130 MPa·√m (118.3 ksi·√in), better than 85% of nickel alloy grades
- Good corrosion resistance — 90/100, better than 85% of nickel alloy grades
Limitations
- Poor heat conductor — 9.8 W/m·K (5.66 BTU/hr·ft·°F), worse than 92% of nickel alloy grades
ERNiCrMo-3 properties
Typical room-temperature values for ERNiCrMo-3-AW; bars are the position among nickel alloy grades.
Physical3
ERNiCrMo-3 has a density of 8.44 g/cm³ (0.305 lb/in³), heavier than 60% of nickel alloy grades. It melts at 1,290°C (2,354 °F).
Mechanical15
ERNiCrMo-3 has a yield strength of 500 MPa (72.5 ksi) and a tensile strength of 800 MPa (116 ksi) — stronger than 73% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
ERNiCrMo-3 is rated for continuous service to 900°C (1,652 °F). It conducts heat at 9.8 W/m·K (5.66 BTU/hr·ft·°F), worse than 92% of nickel alloy grades. Thermal expansion is 12.8 µm/m·K (7.11 µin/in·°F).
Electrical3
ERNiCrMo-3 conducts electricity at 1.3 % IACS, worse than 89% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (90/100), better than 85% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrMo-3 takes about 170 MJ of energy and emits 13 kg of CO₂ — more than 61% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability7
ERNiCrMo-3's machinability is poor (15/100, worse than 76% of nickel alloy grades); weldability excellent (95/100); formability good (60/100).
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. ERNiCrMo-3 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ERNiCrMo-3
Is ERNiCrMo-3 easy to machine?
Weld deposit machines like alloy 625: low speed, heavy positive-rake carbide, rigid setup and flood coolant to beat severe work hardening and built-up edge.
Can ERNiCrMo-3 be welded?
GTAW/GMAW/PAW/SAW with Ar or Ar-He shielding, low interpass (<150 °C) and stringer beads; keep dilution and sulfur/phosphorus pickup low to avoid hot cracking, no preheat needed.
Can ERNiCrMo-3 be formed, bent or molded?
Consumable is cold drawn and layer-wound; deposits are ductile but strongly work hardening, so any cold straightening/forming of weldments needs generous bend radii.
ERNiCrMo-3 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 |
|---|---|---|
| Cr | 20 – 23 | 21.5 |
| Mo | 8 – 10 | 9 |
| NbNb + Ta | 3.15 – 4.15 | 3.6 |
| Fe | ≤ 5 | 2 |
| C | ≤ 0.1 | 0.03 |
| Mn | ≤ 0.5 | 0.2 |
| Si | ≤ 0.5 | 0.2 |
| Al | ≤ 0.4 | 0.15 |
| Ti | ≤ 0.4 | 0.15 |
| Cu | ≤ 0.5 | 0.05 |
| Cowhen specified | ≤ 0.12 | 0.05 |
| P | ≤ 0.02 | 0.01 |
| S | ≤ 0.02 | 0 |
| Other, total | ≤ 0.5 | |
| Niplus incidental Co | ≥ 58 (balance) |
What surface finishes work on ERNiCrMo-3?
Pickle or mechanically remove heat tint and remove residual Nb-rich films before service; electropolish or passivate for cleanliness — do not anodize.
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 ERNiCrMo-3 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- N06625
- ASTM
- A5.14 ERNiCrMo-3
- EN / DIN / Werkstoff-Nr.
- 2.4831
- ISO
- Ni 6625
- Trade names
- Inconel Filler Metal 625Filler Metal 625Inconel 625 Filler
- Also called
- Inconel 625 bare wireAWS A5.14 ERNiCrMo-3
- Similar grades
- NiCr22Mo9Nb
How much does ERNiCrMo-3 cost?
ERNiCrMo-3 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.
ERNiCrMo-3 — frequently asked
What is ERNiCrMo-3 used for?
ERNiCrMo-3 is typically used for pipe welding root passes, overlay cladding on carbon steel, subsea equipment welding and dissimilar metal joining. In short: most versatile nickel filler; service to 900 °C; standard CRA overlay wire.
What is the yield strength of ERNiCrMo-3?
ERNiCrMo-3 has a typical yield strength of 500 MPa (72.5 ksi) and a tensile strength of 800 MPa (116 ksi) — stronger than 73% of nickel alloy grades. Strength varies by condition: see the 5 listed tempers.
Is ERNiCrMo-3 easy to machine?
Not especially — machinability is rated poor (15/100, worse than 76% of nickel alloy grades). Weld deposit machines like alloy 625: low speed, heavy positive-rake carbide, rigid setup and flood coolant to beat severe work hardening and built-up edge.
Can ERNiCrMo-3 be welded?
Yes — weldability is rated excellent (95/100). GTAW/GMAW/PAW/SAW with Ar or Ar-He shielding, low interpass (<150 °C) and stringer beads; keep dilution and sulfur/phosphorus pickup low to avoid hot cracking, no preheat needed.
What surface finishes work on ERNiCrMo-3?
Pickle or mechanically remove heat tint and remove residual Nb-rich films before service; electropolish or passivate for cleanliness — do not anodize.
Can ERNiCrMo-3 be formed, bent or molded?
Consumable is cold drawn and layer-wound; deposits are ductile but strongly work hardening, so any cold straightening/forming of weldments needs generous bend radii.
What is the maximum service temperature of ERNiCrMo-3?
ERNiCrMo-3 is rated for continuous use to about 900°C (1,652 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ERNiCrMo-3-AW and ERNiCrMo-3 PWHT-SA?
AW is the default condition — default condition: properties of the as-deposited GTAW weld metal, no post-weld heat treatment. PWHT-SA: choose when the fabrication is solution annealed after welding to homogenize Nb segregation and maximize ductility/corrosion resistance. Yield strength is 500 MPa in AW versus 400 MPa in PWHT-SA.
How much does ERNiCrMo-3 cost?
ERNiCrMo-3 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 — AWS (2018)
- ASTM B443 / UNS N06625 chemistry basis — ASTM (2019)
- INCONEL Filler Metal 625 product datasheet — Special Metals Corporation (2020)
- ASM Handbook Vol.6 Welding, Brazing and Soldering; Vol.2 Nonferrous Alloys — ASM International (1993)
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.