Nickel Alloy ERNiCrMo-1
UNS N10004 · ISO S Ni 1004
ERNiCrMo-1 is a legacy nickel-chromium-molybdenum filler wire (UNS N10004) matched to Hastelloy W base metal, valued for as-welded ductility in strong reducing acid service.
Reference datasheet — ERNiCrMo-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
ERNiCrMo-1 tempers and conditions
ERNiCrMo-1 is supplied in 2 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Weld deposit solution annealed ~1150 °C, water quenched | Choose when overlay or fabrication is given a full solution anneal to dissolve interdendritic Nb/Mo phases and maximize corrosion uniformity. | 300 | 620 | 50 | 165 HB | 1.4 % IACS |
AWDefault As-welded deposit | Standard condition for pressure-vessel and piping joints in mixed acid service; Nb stabilization means no PWHT is required. | 400 | 655 | 40 | 195 HB | 1.4 % IACS |
Supply forms, finishes and certifications
Ways ERNiCrMo-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 | Cold-drawn bare filler wire / cut-length rod as supplied | Supply form |
What is ERNiCrMo-1?
ERNiCrMo-1 is a legacy nickel-chromium-molybdenum filler wire (UNS N10004) matched to Hastelloy W base metal, valued for as-welded ductility in strong reducing acid service. It is supplied as drawn wire and cut rod for GTAW and GMAW, with as-welded deposits around 400 MPa yield, 655 MPa tensile, 40% elongation and 195 HB. Service is limited to about 550 °C and the corrosion rating (80) is below modern Ni-Cr-Mo fillers, and availability is restricted because the base alloy is largely obsolete. For new construction, ERNiCrMo-4 (C-276 type) is the usual replacement. ERNiCrMo-1 has a density of 8.31 g/cm³ (0.3 lb/in³), heavier than 51% of nickel alloy grades. It melts at 1,260°C (2,300 °F). ERNiCrMo-1 has a yield strength of 400 MPa (58 ksi) and a tensile strength of 655 MPa (95 ksi) — stronger than 56% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 196 GPa (28.4 Msi).
What is ERNiCrMo-1 used for?
- chemical process equipment
- reducing acid environments
- Hastelloy W piping repair
Advantages
- Readily welded — 90/100, better than 96% of nickel alloy grades
ERNiCrMo-1 properties
Typical room-temperature values for ERNiCrMo-1-AW; bars are the position among nickel alloy grades.
Physical3
ERNiCrMo-1 has a density of 8.31 g/cm³ (0.3 lb/in³), heavier than 51% of nickel alloy grades. It melts at 1,260°C (2,300 °F).
Mechanical16
ERNiCrMo-1 has a yield strength of 400 MPa (58 ksi) and a tensile strength of 655 MPa (95 ksi) — stronger than 56% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 196 GPa (28.4 Msi).
Thermal6
ERNiCrMo-1 is rated for continuous service to 550°C (1,022 °F). It conducts heat at 10.1 W/m·K (5.84 BTU/hr·ft·°F), worse than 84% of nickel alloy grades. Thermal expansion is 14 µm/m·K (7.78 µin/in·°F).
Electrical3
ERNiCrMo-1 conducts electricity at 1.4 % IACS, worse than 65% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 61% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrMo-1 takes about 150 MJ of energy and emits 13 kg of CO₂ — less than 68% of nickel alloy grades. Typical recycled content is 30%.
Manufacturability7
ERNiCrMo-1's machinability is poor (22/100, better than 64% of nickel alloy grades); weldability excellent (90/100); 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-1 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ERNiCrMo-1
Is ERNiCrMo-1 easy to machine?
Weld deposits machine like a solution-annealed Ni-Cr-Mo alloy: low speed, heavy positive-rake carbide, rigid setup and flood coolant to avoid work hardening and built-up edge.
Can ERNiCrMo-1 be welded?
Use GTAW/GMAW with 100 % Ar (or Ar-He) shielding, low heat input, stringer beads and interpass below ~120 °C; keep the deposit free of sulfur/lead contamination to avoid hot cracking.
Can ERNiCrMo-1 be formed, bent or molded?
Supplied as drawn wire or cut rod; deposits are ductile enough for cold straightening but heavy cold work on overlays should be followed by solution anneal.
ERNiCrMo-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 |
|---|---|---|
| CAWS A5.14 max | ≤ 0.05 | 0.02 |
| Mn | 1 – 2 | 1.5 |
| Si | ≤ 1 | 0.4 |
| P | ≤ 0.04 | |
| S | ≤ 0.03 | |
| Cr | 21 – 23.5 | 22 |
| Mo | 5.5 – 7.5 | 6.5 |
| Fe | 18 – 21 | 19.5 |
| Cuimproves resistance in reducing acids | 1.5 – 2.5 | 2 |
| Nb+Tastabilizer against intergranular attack | 1.75 – 2.5 | 2.1 |
| W | ≤ 1 | 0.4 |
| Co | ≤ 2.5 | |
| Ti | ≤ 0.05 | |
| Nibalance, approx. 44–46 % | balance |
What surface finishes work on ERNiCrMo-1?
Pickle or mechanically remove weld heat tint and Cr-rich oxide before service; passivation or electropolish restores the full corrosion performance of the deposit.
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-1 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- N10004
- ISO
- S Ni 1004
How much does ERNiCrMo-1 cost?
ERNiCrMo-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.
ERNiCrMo-1 — frequently asked
What is ERNiCrMo-1 used for?
ERNiCrMo-1 is typically used for chemical process equipment, reducing acid environments and hastelloy W piping repair. In short: legacy Hastelloy W filler; ductile as-welded deposit; reducing-acid service.
What is the yield strength of ERNiCrMo-1?
ERNiCrMo-1 has a typical yield strength of 400 MPa (58 ksi) and a tensile strength of 655 MPa (95 ksi) — stronger than 56% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ERNiCrMo-1 easy to machine?
Not especially — machinability is rated poor (22/100, better than 64% of nickel alloy grades). Weld deposits machine like a solution-annealed Ni-Cr-Mo alloy: low speed, heavy positive-rake carbide, rigid setup and flood coolant to avoid work hardening and built-up edge.
Can ERNiCrMo-1 be welded?
Yes — weldability is rated excellent (90/100). Use GTAW/GMAW with 100 % Ar (or Ar-He) shielding, low heat input, stringer beads and interpass below ~120 °C; keep the deposit free of sulfur/lead contamination to avoid hot cracking.
What surface finishes work on ERNiCrMo-1?
Pickle or mechanically remove weld heat tint and Cr-rich oxide before service; passivation or electropolish restores the full corrosion performance of the deposit.
Can ERNiCrMo-1 be formed, bent or molded?
Supplied as drawn wire or cut rod; deposits are ductile enough for cold straightening but heavy cold work on overlays should be followed by solution anneal.
What is the maximum service temperature of ERNiCrMo-1?
ERNiCrMo-1 is rated for continuous use to about 550°C (1,022 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ERNiCrMo-1-AW and ERNiCrMo-1-SA?
AW is the default condition — standard condition for pressure-vessel and piping joints in mixed acid service; Nb stabilization means no PWHT is required. SA: choose when overlay or fabrication is given a full solution anneal to dissolve interdendritic Nb/Mo phases and maximize corrosion uniformity. Yield strength is 400 MPa in AW versus 300 MPa in SA.
How much does ERNiCrMo-1 cost?
ERNiCrMo-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 — AWS (2018)
- ASME BPVC Section II Part C — SFA-5.14 — ASME (2023)
- ISO 18274 — Welding consumables, wire and strip electrodes for nickel and nickel alloys (S Ni 6007) — ISO (2010)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- Nickel alloy G / G-3 filler metal technical data — Haynes International / Special Metals (2020)
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.