Nickel Alloy ERNiCrCoMo-1-AW (As-welded deposit)
Heat-treated state · default condition
UNS N06617 · also Inconel Filler Metal 617
Default condition of deposited weld metal used directly in service; highest strength, retains dendritic solidification structure.
Values for the AW condition
Other ERNiCrCoMo-1 tempers and conditions
ERNiCrCoMo-1 is listed in 2 conditions; see the grade overview at ERNiCrCoMo-1.
- SA
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Post-weld solution annealed | Pick when the weldment is solution annealed with the component to homogenise the deposit, dissolve carbides and restore maximum ductility/creep life. | 340 | 720 | 50 | 165 HB | — |
AWDefaultThis page As-welded deposit | Default condition of deposited weld metal used directly in service; highest strength, retains dendritic solidification structure. | 430 | 740 | 40 | 185 HB | — |
What is ERNiCrCoMo-1-AW?
ERNiCrCoMo-1-AW is ERNiCrCoMo-1 heat treated to AW — default condition of deposited weld metal used directly in service; highest strength, retains dendritic solidification structure. ERNiCrCoMo-1-AW has a yield strength of 430 MPa (62.4 ksi) and a tensile strength of 740 MPa (107 ksi) — stronger than 64% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 211 GPa (30.6 Msi). ERNiCrCoMo-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
- Conducts heat well — 13.6 W/m·K (7.86 BTU/hr·ft·°F), better than 75% of nickel alloy grades
ERNiCrCoMo-1-AW properties
Typical room-temperature values for ERNiCrCoMo-1-AW; 11 are specific to this condition. Other listed values are ERNiCrCoMo-1 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ERNiCrCoMo-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).
Mechanical14
ERNiCrCoMo-1-AW has a yield strength of 430 MPa (62.4 ksi) and a tensile strength of 740 MPa (107 ksi) — stronger than 64% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 211 GPa (30.6 Msi).
Thermal6
ERNiCrCoMo-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
ERNiCrCoMo-1-AW conducts electricity at 1.4 % IACS, worse than 65% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 51% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrCoMo-1-AW takes about 155 MJ of energy and emits 13 kg of CO₂ — less than 58% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability7
ERNiCrCoMo-1-AW's machinability is poor (20/100, better than 53% of nickel alloy grades); weldability very good (80/100); formability good (55/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ERNiCrCoMo-1-AW
Is ERNiCrCoMo-1 easy to machine?
Weld deposit machines like a solid-solution superalloy — rigid setup, sharp positive-rake carbide, low speed (15–25 m/min) and heavy constant feed to avoid work hardening.
Can ERNiCrCoMo-1 be welded?
GTAW/GMAW/PAW with 100 % Ar (or Ar+He for GMAW); stringer beads, heat input <1.5 kJ/mm, interpass <150 °C to limit ductility-dip and HAZ liquation cracking; normally no PWHT.
Can ERNiCrCoMo-1 be formed, bent or molded?
Supplied as drawn wire; cold bending of the deposit is possible but springback is high and cold work below 1000 °C should be followed by solution annealing.
What surface finishes work on ERNiCrCoMo-1?
Pickle or abrasive-blast to remove chromia scale before service; no anodising — passivate or electropolish for clean-gas/high-purity duty.
ERNiCrCoMo-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 |
|---|---|---|
| Ccarbon kept high for creep strength | 0.05 – 0.15 | 0.08 |
| Cr | 20 – 24 | 22 |
| Co | 10 – 15 | 12.5 |
| Mo | 8 – 10 | 9 |
| Aloxide former / γ′ contribution | 0.8 – 1.5 | 1.1 |
| Ti | ≤ 0.6 | 0.3 |
| Fe | ≤ 3 | 1 |
| Mn | ≤ 1 | 0.2 |
| Si | ≤ 1 | 0.2 |
| Cu | ≤ 0.5 | 0.05 |
| B | ≤ 0.01 | 0 |
| S | ≤ 0.02 | 0 |
| P | ≤ 0.03 | 0.01 |
| Ni44.5 % min, balance | balance | — |
ERNiCrCoMo-1-AW — frequently asked
What is ERNiCrCoMo-1-AW used for?
ERNiCrCoMo-1-AW is typically used for gas turbine combustion components, high-temperature process piping, boiler superheater welds and alloy 617 fabrication. In short: highest service temperature filler; creep-rupture nickel filler; cobalt-bearing, high cost.
What is the yield strength of ERNiCrCoMo-1-AW?
ERNiCrCoMo-1-AW has a typical yield strength of 430 MPa (62.4 ksi) and a tensile strength of 740 MPa (107 ksi) — stronger than 64% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ERNiCrCoMo-1-AW easy to machine?
Not especially — machinability is rated poor (20/100, better than 53% of nickel alloy grades). Weld deposit machines like a solid-solution superalloy — rigid setup, sharp positive-rake carbide, low speed (15–25 m/min) and heavy constant feed to avoid work hardening.
Can ERNiCrCoMo-1-AW be welded?
Yes — weldability is rated very good (80/100). GTAW/GMAW/PAW with 100 % Ar (or Ar+He for GMAW); stringer beads, heat input <1.5 kJ/mm, interpass <150 °C to limit ductility-dip and HAZ liquation cracking; normally no PWHT.
What surface finishes work on ERNiCrCoMo-1-AW?
Pickle or abrasive-blast to remove chromia scale before service; no anodising — passivate or electropolish for clean-gas/high-purity duty.
Can ERNiCrCoMo-1-AW be formed, bent or molded?
Supplied as drawn wire; cold bending of the deposit is possible but springback is high and cold work below 1000 °C should be followed by solution annealing.
What is the maximum service temperature of ERNiCrCoMo-1-AW?
ERNiCrCoMo-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 ERNiCrCoMo-1-AW and ERNiCrCoMo-1-SA?
AW is the default condition — default condition of deposited weld metal used directly in service; highest strength, retains dendritic solidification structure. SA: pick when the weldment is solution annealed with the component to homogenise the deposit, dissolve carbides and restore maximum ductility/creep life. Yield strength is 430 MPa in AW versus 340 MPa in SA.
Sources
- AWS A5.14/A5.14M — Nickel and Nickel-Alloy Bare Welding Electrodes and Rods — AWS (2018)
- ASTM B166 / UNS N06617 chemistry — ASTM (2019)
- INCONEL alloy 617 / filler metal 617 technical bulletin — Special Metals Corporation (2022)
- Thermanit / UTP filler metals for high-temperature nickel alloys — voestalpine Böhler Welding (2021)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering (Ni-alloy weld metals) — 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.