Nickel Alloy ENiCrMo-14-AW (As-welded deposit)
Heat-treated state · default condition
UNS W86686
Standard condition for corrosion-service joints and overlays; use low heat input and interpass ≤150 °C.
Values for the AW condition
Other ENiCrMo-14 tempers and conditions
ENiCrMo-14 is listed in 2 conditions; see the grade overview at ENiCrMo-14.
- SA
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution Annealed | Used when clad/overlaid components receive a full solution anneal; homogenises the dendritic deposit, softens it and restores maximum corrosion resistance. | 380 | 720 | 50 | 172 HB | 1.4 % IACS |
AWDefaultThis page As-welded deposit | Standard condition for corrosion-service joints and overlays; use low heat input and interpass ≤150 °C. | 490 | 780 | 40 | 13 HRC | 1.4 % IACS |
What is ENiCrMo-14-AW?
ENiCrMo-14-AW is ENiCrMo-14 heat treated to AW — standard condition for corrosion-service joints and overlays; use low heat input and interpass ≤150 °C. ENiCrMo-14-AW has a yield strength of 490 MPa (71.1 ksi) and a tensile strength of 780 MPa (113 ksi) — stronger than 71% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 205 GPa (29.7 Msi). ENiCrMo-14-AW has a density of 8.73 g/cm³ (0.315 lb/in³), heavier than 77% of nickel alloy grades. It melts at 1,338°C (2,440 °F).
Advantages
- Good corrosion resistance — 96/100, better than 99% of nickel alloy grades
- Readily welded — 88/100, better than 92% of nickel alloy grades
- Tough — resists crack growth — 120 MPa·√m (109.2 ksi·√in), better than 75% of nickel alloy grades
Limitations
- Poor heat conductor — 8.7 W/m·K (5.03 BTU/hr·ft·°F), worse than 99% of nickel alloy grades
- Limited service temperature — 400°C (752 °F), worse than 94% of nickel alloy grades
ENiCrMo-14-AW properties
Typical room-temperature values for ENiCrMo-14-AW; 23 are specific to this condition. Other listed values are ENiCrMo-14 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ENiCrMo-14-AW has a density of 8.73 g/cm³ (0.315 lb/in³), heavier than 77% of nickel alloy grades. It melts at 1,338°C (2,440 °F).
Mechanical17
ENiCrMo-14-AW has a yield strength of 490 MPa (71.1 ksi) and a tensile strength of 780 MPa (113 ksi) — stronger than 71% of nickel alloy grades. Elongation at break is 40% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal5
ENiCrMo-14-AW is rated for continuous service to 400°C (752 °F). It conducts heat at 8.7 W/m·K (5.03 BTU/hr·ft·°F), worse than 99% of nickel alloy grades. Thermal expansion is 12.2 µm/m·K (6.78 µin/in·°F).
Electrical3
ENiCrMo-14-AW conducts electricity at 1.4 % IACS, worse than 79% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (96/100), better than 99% of nickel alloy grades.
Sustainability4
Producing a kilogram of ENiCrMo-14-AW takes about 180 MJ of energy and emits 14 kg of CO₂ — more than 69% of nickel alloy grades. Typical recycled content is 25%.
Manufacturability7
ENiCrMo-14-AW's machinability is poor (18/100, worse than 61% of nickel alloy grades); weldability excellent (88/100); formability fair (45/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ENiCrMo-14-AW
Is ENiCrMo-14 easy to machine?
Deposit work-hardens strongly — use sharp carbide, heavy positive rake, low speed / high feed, rigid setup and flood coolant; grinding of weld caps needs non-ferrous wheels.
Can ENiCrMo-14 be welded?
SMAW DCEP, stringer beads, low heat input (<1.5 kJ/mm) and interpass ≤150 °C; redry electrodes ~250–300 °C, clean between passes, no PWHT normally required.
Can ENiCrMo-14 be formed, bent or molded?
Not a wrought product form; deposits are ductile and can tolerate weld-repair and light peening but should not be cold-worked heavily.
What surface finishes work on ENiCrMo-14?
Pickle/passivate or blast with clean non-iron media then final brush/polish; never anodize — protect surface from iron contamination for full corrosion performance.
ENiCrMo-14 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 | ≤ 0.02 | 0.01 |
| Mn | ≤ 1 | 0.4 |
| Si | ≤ 0.5 | 0.3 |
| P | ≤ 0.02 | — |
| S | ≤ 0.02 | — |
| Cr | 19 – 23 | 20.5 |
| Mo | 15 – 17 | 16 |
| W | 3 – 4.4 | 3.8 |
| Fe | ≤ 5 | 1.5 |
| Ti | ≤ 0.25 | 0.05 |
| Cu | ≤ 0.5 | — |
| Al | ≤ 0.5 | — |
| Comax, where specified | ≤ 2.5 | — |
| Others (total) | ≤ 0.5 | — |
| Niremainder, typically ~55–58 % | balance | — |
ENiCrMo-14-AW — frequently asked
What is ENiCrMo-14-AW used for?
ENiCrMo-14-AW is typically used for manual repair of pollution control equipment, extreme corrosion service field welding, scrubber and absorber tower welds, chloride-bearing process vessels, acid process piping repairs and weld overlay on carbon steel components. In short: alloy 686 covered electrode; chloride and acid service; corrosion rating 96.
What is the yield strength of ENiCrMo-14-AW?
ENiCrMo-14-AW has a typical yield strength of 490 MPa (71.1 ksi) and a tensile strength of 780 MPa (113 ksi) — stronger than 71% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ENiCrMo-14-AW easy to machine?
Not especially — machinability is rated poor (18/100, worse than 61% of nickel alloy grades). Deposit work-hardens strongly — use sharp carbide, heavy positive rake, low speed / high feed, rigid setup and flood coolant; grinding of weld caps needs non-ferrous wheels.
Can ENiCrMo-14-AW be welded?
Yes — weldability is rated excellent (88/100). SMAW DCEP, stringer beads, low heat input (<1.5 kJ/mm) and interpass ≤150 °C; redry electrodes ~250–300 °C, clean between passes, no PWHT normally required.
What surface finishes work on ENiCrMo-14-AW?
Pickle/passivate or blast with clean non-iron media then final brush/polish; never anodize — protect surface from iron contamination for full corrosion performance.
Can ENiCrMo-14-AW be formed, bent or molded?
Not a wrought product form; deposits are ductile and can tolerate weld-repair and light peening but should not be cold-worked heavily.
What is the maximum service temperature of ENiCrMo-14-AW?
ENiCrMo-14-AW is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ENiCrMo-14-AW and ENiCrMo-14-SA?
AW is the default condition — standard condition for corrosion-service joints and overlays; use low heat input and interpass ≤150 °C. SA: used when clad/overlaid components receive a full solution anneal; homogenises the dendritic deposit, softens it and restores maximum corrosion resistance. Yield strength is 490 MPa in AW versus 380 MPa in SA.
Sources
- AWS A5.11/A5.11M — Nickel and Nickel-Alloy Welding Electrodes for Shielded Metal Arc Welding — AWS (2018)
- ASME SFA-5.11 (Section II Part C) — ASME (2023)
- INCONEL alloy 686 / 686CPT welding products data — Special Metals Welding Products (2020)
- VDM Alloy 59 / 686 type Ni-Cr-Mo filler metals — VDM Metals (2021)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering (Ni-alloy consumables) — ASM International (1993)
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.