Nickel Alloy ERNiCrFe-6 AW-PWHT
Heat-treated state
UNS N07092 · also IN-92 Filler Wire
AW-PWHT = as Welded + PWHT
Choose when the joint must be stress-relieved or matched to a solution-annealed Alloy 600/800H base metal; slightly lowers strength and raises ductility.
Values for the AW-PWHT condition
Other ERNiCrFe-6 tempers and conditions
ERNiCrFe-6 is listed in 2 conditions; see the grade overview at ERNiCrFe-6.
- AW-PWHT
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AW-PWHTThis page As Welded + PWHT | Choose when the joint must be stress-relieved or matched to a solution-annealed Alloy 600/800H base metal; slightly lowers strength and raises ductility. | 320 | 610 | 42 | 160 HB | 1.8 % IACS |
AWDefault As-welded deposit | Default condition for any filler metal: properties of the as-deposited, undiluted weld metal used for procedure qualification. | 410 | 655 | 35 | 185 HB | — |
What is ERNiCrFe-6 AW-PWHT?
ERNiCrFe-6 AW-PWHT is ERNiCrFe-6 heat treated to AW-PWHT — choose when the joint must be stress-relieved or matched to a solution-annealed Alloy 600/800H base metal; slightly lowers strength and raises ductility. ERNiCrFe-6 AW-PWHT has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 610 MPa (88.5 ksi) — weaker than 69% of nickel alloy grades. Elongation at break is 42% and the elastic modulus is 200 GPa (29 Msi). ERNiCrFe-6 AW-PWHT has a density of 8.2 g/cm³ (0.296 lb/in³), lighter than 63% of nickel alloy grades. It melts at 1,355°C (2,471 °F). AW is the default condition FabDigit quotes; AW-PWHT is available on request or by drawing note.
Advantages
- Readily welded — 85/100, better than 83% of nickel alloy grades
- High electrical conductivity — 1.8 % IACS, better than 81% of nickel alloy grades
- Conducts heat well — 14.8 W/m·K (8.55 BTU/hr·ft·°F), better than 80% of nickel alloy grades
- High service temperature — 1,000°C (1,832 °F), better than 79% of nickel alloy grades
Limitations
- Hard to polish — 60/100, worse than 84% of nickel alloy grades
ERNiCrFe-6 AW-PWHT properties
Typical room-temperature values for ERNiCrFe-6 AW-PWHT; 22 are specific to this condition. Other listed values are ERNiCrFe-6 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ERNiCrFe-6 AW-PWHT has a density of 8.2 g/cm³ (0.296 lb/in³), lighter than 63% of nickel alloy grades. It melts at 1,355°C (2,471 °F).
Mechanical13
ERNiCrFe-6 AW-PWHT has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 610 MPa (88.5 ksi) — weaker than 69% of nickel alloy grades. Elongation at break is 42% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
ERNiCrFe-6 AW-PWHT is rated for continuous service to 1,000°C (1,832 °F). It conducts heat at 14.8 W/m·K (8.55 BTU/hr·ft·°F), better than 80% of nickel alloy grades. Thermal expansion is 13.3 µm/m·K (7.39 µin/in·°F).
Electrical3
ERNiCrFe-6 AW-PWHT conducts electricity at 1.8 % IACS, better than 81% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (79/100), better than 58% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrFe-6 AW-PWHT takes about 200 MJ of energy and emits 14 kg of CO₂ — more than 78% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability7
ERNiCrFe-6 AW-PWHT's machinability is poor (22/100, better than 64% of nickel alloy grades); weldability excellent (85/100); formability good (68/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ERNiCrFe-6 AW-PWHT
Is ERNiCrFe-6 easy to machine?
Weld deposits machine like Alloy 600 — gummy and work-hardening; use rigid setups, sharp positive-rake carbide, heavy feed, low SFM and flood coolant.
Can ERNiCrFe-6 be welded?
GTAW or short-arc GMAW with argon (add He for wider penetration); keep interpass below ~150 °C, low heat input, stringer beads and no weaving, and back-purge to avoid Ti/Cr oxide entrapment.
Can ERNiCrFe-6 be formed, bent or molded?
Supplied only as drawn wire/rod; the alloy cold-draws well but requires frequent intermediate annealing due to rapid work hardening.
What surface finishes work on ERNiCrFe-6?
Do not anodize; remove Ti-rich oxide by stainless brushing or pickling before subsequent passes, then passivate or leave bright — accepts electropolishing and nickel/chrome plating.
ERNiCrFe-6 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 | 14 – 17 | 15.5 |
| Tideoxidizer, hot-crack control | 2.5 – 3.5 | 3 |
| Mn | 2 – 2.7 | 2.4 |
| Fe | ≤ 8 | 7 |
| Si | ≤ 0.35 | 0.2 |
| C | ≤ 0.08 | 0.04 |
| Cu | ≤ 0.5 | 0.1 |
| S | ≤ 0.02 | 0.01 |
| P | ≤ 0.03 | 0.01 |
| other, totalsum of unspecified residuals | ≤ 0.5 | — |
| NiNi + incidental Co, 67.0 % min per AWS A5.14 | ≥ 67 (balance) | — |
ERNiCrFe-6 AW-PWHT — frequently asked
What is ERNiCrFe-6 AW-PWHT used for?
ERNiCrFe-6 AW-PWHT is typically used for incoloy 800H furnace tubing, petrochemical reformer components and heat-resistant fabrication. In short: expansion-matched to Alloy 800H; heat-resistant Ni-Fe-Cr filler; wire and rod only.
What is the yield strength of ERNiCrFe-6 AW-PWHT?
ERNiCrFe-6 AW-PWHT has a typical yield strength of 320 MPa (46.4 ksi) and a tensile strength of 610 MPa (88.5 ksi) — weaker than 69% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ERNiCrFe-6 AW-PWHT easy to machine?
Not especially — machinability is rated poor (22/100, better than 64% of nickel alloy grades). Weld deposits machine like Alloy 600 — gummy and work-hardening; use rigid setups, sharp positive-rake carbide, heavy feed, low SFM and flood coolant.
Can ERNiCrFe-6 AW-PWHT be welded?
Yes — weldability is rated excellent (85/100). GTAW or short-arc GMAW with argon (add He for wider penetration); keep interpass below ~150 °C, low heat input, stringer beads and no weaving, and back-purge to avoid Ti/Cr oxide entrapment.
What surface finishes work on ERNiCrFe-6 AW-PWHT?
Do not anodize; remove Ti-rich oxide by stainless brushing or pickling before subsequent passes, then passivate or leave bright — accepts electropolishing and nickel/chrome plating.
Can ERNiCrFe-6 AW-PWHT be formed, bent or molded?
Supplied only as drawn wire/rod; the alloy cold-draws well but requires frequent intermediate annealing due to rapid work hardening.
What is the maximum service temperature of ERNiCrFe-6 AW-PWHT?
ERNiCrFe-6 AW-PWHT is rated for continuous use to about 1,000°C (1,832 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ERNiCrFe-6-AW and ERNiCrFe-6 AW-PWHT?
AW is the default condition — default condition for any filler metal: properties of the as-deposited, undiluted weld metal used for procedure qualification. AW-PWHT: choose when the joint must be stress-relieved or matched to a solution-annealed Alloy 600/800H base metal; slightly lowers strength and raises ductility. Yield strength is 410 MPa in AW versus 320 MPa in AW-PWHT.
Sources
- AWS A5.14/A5.14M — Specification for Nickel and Nickel-Alloy Bare Welding Electrodes and Rods — American Welding Society (2018)
- ASME BPVC Section II Part C — SFA-5.14 — ASME (2023)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys (Ni-Cr-Fe alloys) — ASM International (1990)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering (nickel alloy filler metals) — ASM International (1993)
- Nickel-alloy filler metal datasheets (FM 92 / N07092 class) — Special Metals Welding Products / Böhler Welding (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.