Nickel Alloy ENiCrCoMo-1-AW (As-welded deposit)
Heat-treated state · default condition
UNS W86117
Standard supply/qualification condition for the electrode: deposit used directly in the as-welded state for high-temperature piping and combustor repair.
Values for the AW condition
Other ENiCrCoMo-1 tempers and conditions
ENiCrCoMo-1 is listed in 3 conditions; see the grade overview at ENiCrCoMo-1.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution annealed after welding | Choose when the fabrication receives a full solution anneal (e.g. weld-overlay clad plate or tube assemblies) to dissolve interdendritic carbides and restore ductility/creep uniformity. | 350 | 700 | 48 | 175 HB | 1.5 % IACS |
AWDefaultThis page As-welded deposit | Standard supply/qualification condition for the electrode: deposit used directly in the as-welded state for high-temperature piping and combustor repair. | 430 | 720 | 38 | 17 HRC | 1.4 % IACS |
Service-exposed / aged 700–800 °C long term | Reference condition for assessing weld metal after long high-temperature exposure: strength rises slightly from γ′/carbide precipitation while room-temperature toughness and ductility fall. | 500 | 780 | 20 | 24 HRC | 1.5 % IACS |
What is ENiCrCoMo-1-AW?
ENiCrCoMo-1-AW is ENiCrCoMo-1 heat treated to AW — standard supply/qualification condition for the electrode: deposit used directly in the as-welded state for high-temperature piping and combustor repair. ENiCrCoMo-1-AW has a yield strength of 430 MPa (62.4 ksi) and a tensile strength of 720 MPa (104 ksi) — stronger than 64% of nickel alloy grades. Elongation at break is 38% and the elastic modulus is 211 GPa (30.6 Msi). ENiCrCoMo-1-AW has a density of 8.36 g/cm³ (0.302 lb/in³), heavier than 54% of nickel alloy grades. It melts at 1,332°C (2,430 °F).
Advantages
- High service temperature — 1,100°C (2,012 °F), better than 88% of nickel alloy grades
- Readily welded — 85/100, better than 83% of nickel alloy grades
- Conducts heat well — 13.6 W/m·K (7.86 BTU/hr·ft·°F), better than 75% of nickel alloy grades
Limitations
- Hard to polish — 60/100, worse than 84% of nickel alloy grades
ENiCrCoMo-1-AW properties
Typical room-temperature values for ENiCrCoMo-1-AW; 23 are specific to this condition. Other listed values are ENiCrCoMo-1 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ENiCrCoMo-1-AW has a density of 8.36 g/cm³ (0.302 lb/in³), heavier than 54% of nickel alloy grades. It melts at 1,332°C (2,430 °F).
Mechanical17
ENiCrCoMo-1-AW has a yield strength of 430 MPa (62.4 ksi) and a tensile strength of 720 MPa (104 ksi) — stronger than 64% of nickel alloy grades. Elongation at break is 38% and the elastic modulus is 211 GPa (30.6 Msi).
Thermal6
ENiCrCoMo-1-AW is rated for continuous service to 1,100°C (2,012 °F). It conducts heat at 13.6 W/m·K (7.86 BTU/hr·ft·°F), better than 75% of nickel alloy grades. Thermal expansion is 11.6 µm/m·K (6.44 µin/in·°F).
Electrical3
ENiCrCoMo-1-AW 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 ENiCrCoMo-1-AW takes about 175 MJ of energy and emits 14 kg of CO₂ — more than 65% of nickel alloy grades. Typical recycled content is 30%.
Manufacturability7
ENiCrCoMo-1-AW's machinability is poor (20/100, better than 53% of nickel alloy grades); weldability excellent (85/100); formability fair (35/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ENiCrCoMo-1-AW
Is ENiCrCoMo-1 easy to machine?
Weld deposits machine like alloy 617 — low speed, heavy positive-rake carbide tooling, rigid setup and flood coolant; grind rather than mill where possible.
Can ENiCrCoMo-1 be welded?
Redry electrodes (300–350 °C) before use, weld DCEP with stringer beads, low heat input and interpass ≤150 °C; no preheat needed but keep dilution from carbon/low-alloy base metals low to avoid hot cracking.
Can ENiCrCoMo-1 be formed, bent or molded?
Not a wrought product form — the deposit is used as-welded; joint groove design should allow small beads and easy slag removal.
What surface finishes work on ENiCrCoMo-1?
Remove slag completely between passes, then wire-brush/pickle-passivate; the Al-bearing oxide must be ground off before any coating or braze operation.
ENiCrCoMo-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 |
|---|---|---|
| C | 0.05 – 0.15 | 0.08 |
| Cr | 21 – 26 | 22 |
| Co | 10 – 15 | 12 |
| Mo | 8 – 10 | 9 |
| Al | 0.8 – 1.5 | 1.1 |
| Ti | ≤ 0.6 | 0.3 |
| Fe | ≤ 5 | 1.5 |
| Mn | ≤ 1 | 0.3 |
| Si | ≤ 0.75 | 0.3 |
| Cu | ≤ 0.5 | 0.05 |
| S | ≤ 0.02 | 0.01 |
| P | ≤ 0.03 | 0.01 |
| Nibalance, ~50–55 %; total other elements 0.50 max | balance | — |
ENiCrCoMo-1-AW — frequently asked
What is ENiCrCoMo-1-AW used for?
ENiCrCoMo-1-AW is typically used for gas turbine combustor welding, high-temperature furnace fabrication and aerospace superalloy repair. In short: highest-temperature Ni electrode; oxidation resistant to 1100 °C; superalloy repair filler.
What is the yield strength of ENiCrCoMo-1-AW?
ENiCrCoMo-1-AW has a typical yield strength of 430 MPa (62.4 ksi) and a tensile strength of 720 MPa (104 ksi) — stronger than 64% of nickel alloy grades. Strength varies by condition: see the 3 listed tempers.
Is ENiCrCoMo-1-AW easy to machine?
Not especially — machinability is rated poor (20/100, better than 53% of nickel alloy grades). Weld deposits machine like alloy 617 — low speed, heavy positive-rake carbide tooling, rigid setup and flood coolant; grind rather than mill where possible.
Can ENiCrCoMo-1-AW be welded?
Yes — weldability is rated excellent (85/100). Redry electrodes (300–350 °C) before use, weld DCEP with stringer beads, low heat input and interpass ≤150 °C; no preheat needed but keep dilution from carbon/low-alloy base metals low to avoid hot cracking.
What surface finishes work on ENiCrCoMo-1-AW?
Remove slag completely between passes, then wire-brush/pickle-passivate; the Al-bearing oxide must be ground off before any coating or braze operation.
Can ENiCrCoMo-1-AW be formed, bent or molded?
Not a wrought product form — the deposit is used as-welded; joint groove design should allow small beads and easy slag removal.
What is the maximum service temperature of ENiCrCoMo-1-AW?
ENiCrCoMo-1-AW is rated for continuous use to about 1,100°C (2,012 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ENiCrCoMo-1-AW and ENiCrCoMo-1-SA?
AW is the default condition — standard supply/qualification condition for the electrode: deposit used directly in the as-welded state for high-temperature piping and combustor repair. SA: choose when the fabrication receives a full solution anneal (e.g. weld-overlay clad plate or tube assemblies) to dissolve interdendritic carbides and restore ductility/creep uniformity. Yield strength is 430 MPa in AW versus 350 MPa in SA.
Sources
- AWS A5.11/A5.11M — Nickel and Nickel-Alloy Welding Electrodes for Shielded Metal Arc Welding — AWS (2018)
- ASME BPVC Section II Part C — SFA-5.11 — ASME (2023)
- INCONEL alloy 617 technical bulletin — Special Metals Corporation (2005)
- VDM Alloy 617 / Nicrofer 5520 Co material data sheet — VDM Metals (2019)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering (Ni-alloy consumables) — ASM International (1993)
- ASM Specialty Handbook: Nickel, Cobalt and Their Alloys — ASM International (2000)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.