Nickel Alloy ENiCrFe-2-AW (As-welded deposit)
Heat-treated state · default condition
UNS W86133
Default condition for SMAW deposits: use as-welded for Alloy 600/800 and dissimilar Ni-alloy-to-steel joints where no PWHT is required.
Values for the AW condition
Other ENiCrFe-2 tempers and conditions
ENiCrFe-2 is listed in 3 conditions; see the grade overview at ENiCrFe-2.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Used when the whole fabrication (e.g. Alloy 600 vessel or overlay) is solution annealed after welding for maximum ductility and corrosion resistance. | 300 | 570 | 45 | 155 HB | 1.7 % IACS |
As Welded + PWHT / stress relief | Pick when the ferritic base metal side of a dissimilar joint requires code-mandated PWHT; slightly lowers weld-metal strength and raises ductility. | 380 | 590 | 40 | 185 HB | 1.6 % IACS |
AWDefaultThis page As-welded deposit | Default condition for SMAW deposits: use as-welded for Alloy 600/800 and dissimilar Ni-alloy-to-steel joints where no PWHT is required. | 420 | 620 | 38 | 12 HRC | 1.6 % IACS |
What is ENiCrFe-2-AW?
ENiCrFe-2-AW is ENiCrFe-2 heat treated to AW — default condition for SMAW deposits: use as-welded for Alloy 600/800 and dissimilar Ni-alloy-to-steel joints where no PWHT is required. ENiCrFe-2-AW has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 62% of nickel alloy grades. Elongation at break is 38% and the elastic modulus is 205 GPa (29.7 Msi). ENiCrFe-2-AW has a density of 8.3 g/cm³ (0.3 lb/in³), lighter than 52% of nickel alloy grades. It melts at 1,345°C (2,453 °F).
Advantages
- 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
ENiCrFe-2-AW properties
Typical room-temperature values for ENiCrFe-2-AW; 23 are specific to this condition. Other listed values are ENiCrFe-2 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ENiCrFe-2-AW has a density of 8.3 g/cm³ (0.3 lb/in³), lighter than 52% of nickel alloy grades. It melts at 1,345°C (2,453 °F).
Mechanical17
ENiCrFe-2-AW has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 62% of nickel alloy grades. Elongation at break is 38% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
ENiCrFe-2-AW is rated for continuous service to 650°C (1,202 °F). It conducts heat at 12 W/m·K (6.93 BTU/hr·ft·°F), better than 65% of nickel alloy grades. Thermal expansion is 14 µm/m·K (7.78 µin/in·°F).
Electrical3
ENiCrFe-2-AW conducts electricity at 1.6 % IACS, better than 70% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (74/100), worse than 66% of nickel alloy grades.
Sustainability4
Producing a kilogram of ENiCrFe-2-AW takes about 145 MJ of energy and emits 13 kg of CO₂ — less than 77% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability7
ENiCrFe-2-AW's machinability is poor (28/100, better than 82% of nickel alloy grades); weldability excellent (88/100); formability good (60/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ENiCrFe-2-AW
Is ENiCrFe-2 easy to machine?
Weld deposit machines like Alloy 600: low speed, heavy positive-rake carbide, rigid setup and flood coolant to avoid work hardening and glazing.
Can ENiCrFe-2 be welded?
SMAW with DCEP (some brands AC-capable); keep electrodes dry (re-bake ~300 °C), stringer beads, low heat input, interpass ≤150 °C, and clean slag fully between passes.
Can ENiCrFe-2 be formed, bent or molded?
Not a wrought product form; deposits are ductile enough for weld-bend qualification but should not be relied on for cold forming.
What surface finishes work on ENiCrFe-2?
Grind/brush with dedicated stainless or Ni-alloy tooling, then pickle or passivate; electropolish where high-purity or nuclear cleanliness is required.
ENiCrFe-2 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 | 13 – 17 | 15 |
| Fe | ≤ 12 | 8 |
| Mn | ≤ 3.5 | 2 |
| Nb+Tacolumbium + tantalum | 0.5 – 3 | 1.8 |
| Mo | 0.5 – 2.5 | 1.5 |
| C | ≤ 0.1 | 0.05 |
| Si | ≤ 0.75 | 0.4 |
| Cu | ≤ 0.5 | 0.1 |
| Ti | ≤ 1 | 0.3 |
| S | ≤ 0.02 | 0.01 |
| P | ≤ 0.03 | 0.01 |
| other, each/totaltotal of other elements | ≤ 0.5 | — |
| NiNi + Co, 62 % min per AWS A5.11 | ≥ 62 (balance) | — |
ENiCrFe-2-AW — frequently asked
What is ENiCrFe-2-AW used for?
ENiCrFe-2-AW is typically used for dissimilar metal welding, alloy 600 fabrication and nuclear steam generator repair. In short: standard dissimilar-joint Ni electrode; alloy 600 and 800 welding; service to 650 °C.
What is the yield strength of ENiCrFe-2-AW?
ENiCrFe-2-AW has a typical yield strength of 420 MPa (60.9 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 62% of nickel alloy grades. Strength varies by condition: see the 3 listed tempers.
Is ENiCrFe-2-AW easy to machine?
Not especially — machinability is rated poor (28/100, better than 82% of nickel alloy grades). Weld deposit machines like Alloy 600: low speed, heavy positive-rake carbide, rigid setup and flood coolant to avoid work hardening and glazing.
Can ENiCrFe-2-AW be welded?
Yes — weldability is rated excellent (88/100). SMAW with DCEP (some brands AC-capable); keep electrodes dry (re-bake ~300 °C), stringer beads, low heat input, interpass ≤150 °C, and clean slag fully between passes.
What surface finishes work on ENiCrFe-2-AW?
Grind/brush with dedicated stainless or Ni-alloy tooling, then pickle or passivate; electropolish where high-purity or nuclear cleanliness is required.
Can ENiCrFe-2-AW be formed, bent or molded?
Not a wrought product form; deposits are ductile enough for weld-bend qualification but should not be relied on for cold forming.
What is the maximum service temperature of ENiCrFe-2-AW?
ENiCrFe-2-AW is rated for continuous use to about 650°C (1,202 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ENiCrFe-2-AW and ENiCrFe-2-ANN?
AW is the default condition — default condition for SMAW deposits: use as-welded for Alloy 600/800 and dissimilar Ni-alloy-to-steel joints where no PWHT is required. ANN: used when the whole fabrication (e.g. Alloy 600 vessel or overlay) is solution annealed after welding for maximum ductility and corrosion resistance. Yield strength is 420 MPa in AW versus 300 MPa in ANN.
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)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering (nickel alloy welding) — ASM International (1993)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys (Ni-Cr-Fe alloys) — ASM International (1990)
- Ni-Cr-Fe covered electrode (Inconel 132 type) datasheets — Special Metals / Böhler / (2022)
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.