Nickel Alloy N06219 HF-A
Heat-treated state
UNS N06219
HF-A = hot finished and annealed
For thick sections, forged flanges and vessel heads where hot forming precedes a final solution anneal.
Values for the HF-A condition
Other N06219 tempers and conditions
N06219 is listed in 5 conditions; see the grade overview at N06219.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
HF-AThis page Hot finished and annealed | For thick sections, forged flanges and vessel heads where hot forming precedes a final solution anneal. | 350 | 730 | 55 | 185 HB | 1.4 % IACS |
SADefault Solution annealed | Standard corrosion-service condition for plate, sheet, bar, pipe and fittings; maximum ductility and corrosion resistance. | 380 | 760 | 60 | 90 HRB | — |
As-welded deposit | Property set for all-weld-metal deposits made with matching Ni-Cr-Mo filler, used as-welded without post-weld heat treatment. | 450 | 740 | 40 | 205 HB | 1.4 % IACS |
Cold drawn and stress relieved bar | Straight, dimensionally stable bar for machined valve/pump parts where some cold-work strength is retained. | 620 | 900 | 28 | 22 HRC | 1.4 % IACS |
Cold worked | Choose for fasteners, shafts and springs where higher strength is needed and full annealed corrosion performance is not critical. | 760 | 1,000 | 20 | 30 HRC | 1.4 % IACS |
What is N06219 HF-A?
N06219 HF-A is N06219 heat treated to HF-A — for thick sections, forged flanges and vessel heads where hot forming precedes a final solution anneal. N06219 HF-A has a yield strength of 350 MPa (50.8 ksi) and a tensile strength of 730 MPa (106 ksi) — weaker than 60% of nickel alloy grades. Elongation at break is 55% and the elastic modulus is 205 GPa (29.7 Msi). N06219 HF-A has a density of 8.7 g/cm³ (0.314 lb/in³), heavier than 75% of nickel alloy grades. It melts at 1,325°C (2,417 °F). SA is the default condition FabDigit quotes; HF-A is available on request or by drawing note.
Advantages
- Ductile — tolerates forming and impact — 55%, better than 93% of nickel alloy grades
- Good corrosion resistance — 92/100, better than 91% of nickel alloy grades
- High service temperature — 1,000°C (1,832 °F), better than 79% of nickel alloy grades
- Readily welded — 82/100, better than 77% of nickel alloy grades
- Forms and bends easily — 72/100, better than 77% of nickel alloy grades
N06219 HF-A properties
Typical room-temperature values for N06219 HF-A; 22 are specific to this condition. Other listed values are N06219 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
N06219 HF-A has a density of 8.7 g/cm³ (0.314 lb/in³), heavier than 75% of nickel alloy grades. It melts at 1,325°C (2,417 °F).
Mechanical14
N06219 HF-A has a yield strength of 350 MPa (50.8 ksi) and a tensile strength of 730 MPa (106 ksi) — weaker than 60% of nickel alloy grades. Elongation at break is 55% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
N06219 HF-A is rated for continuous service to 1,000°C (1,832 °F). It conducts heat at 10.5 W/m·K (6.07 BTU/hr·ft·°F), worse than 73% of nickel alloy grades. Thermal expansion is 12.4 µm/m·K (6.89 µin/in·°F).
Electrical3
N06219 HF-A conducts electricity at 1.4 % IACS, worse than 65% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of nickel alloy grades.
Sustainability4
Producing a kilogram of N06219 HF-A takes about 140 MJ of energy and emits 13 kg of CO₂ — less than 81% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability8
N06219 HF-A's machinability is poor (18/100, worse than 61% of nickel alloy grades); weldability very good (82/100); formability very good (72/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with N06219 HF-A
Is N06219 easy to machine?
Rigid setups, positive-rake carbide, heavy constant feed and flood coolant; low surface speed (20–35 m/min) to avoid work hardening and never dwell in the cut.
Can N06219 be welded?
GTAW/GMAW with matching Ni-Cr-Mo filler, low heat input, interpass under ~120 °C, no preheat or PWHT; keep weld pool clean to avoid hot cracking and grind out heat tint before service.
Can N06219 be formed, bent or molded?
Very ductile but high work-hardening rate — expect 2× the press force of 304 stainless, use generous radii and intermediate solution anneals for severe draws.
What surface finishes work on N06219?
Pickle (HNO3-HF) or abrasive-blast plus passivation to restore the chromium oxide film; electropolishing gives best crevice-corrosion performance; not anodizable.
N06219 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 |
|---|---|---|
| Crindicative Ni-Cr-Mo family range — verify against purchase specification / UNS listing | 20 – 23 | 21.5 |
| Moindicative Ni-Cr-Mo family range — verify against purchase specification | 12 – 16 | 14 |
| Wmay or may not be specified for this UNS number | 0 – 3.5 | 2.5 |
| Feresidual/controlled | 0 – 5 | 2 |
| Clow-carbon melt practice | 0 – 0.02 | 0.01 |
| Si | 0 – 0.1 | 0.05 |
| Mn | 0 – 0.5 | 0.25 |
| P | 0 – 0.03 | — |
| S | 0 – 0.01 | — |
| Nibalance, Ni-Cr-Mo (C-type) matrix | balance | — |
N06219 HF-A — frequently asked
What is N06219 HF-A used for?
N06219 HF-A is typically used for chemical reactors, flue-gas desulfurization, acid handling piping and pulp bleaching equipment. In short: top-tier wet corrosion resistance; very ductile, hard to machine; weldable without PWHT.
What is the yield strength of N06219 HF-A?
N06219 HF-A has a typical yield strength of 350 MPa (50.8 ksi) and a tensile strength of 730 MPa (106 ksi) — weaker than 60% of nickel alloy grades. Strength varies by condition: see the 5 listed tempers.
Is N06219 HF-A easy to machine?
Not especially — machinability is rated poor (18/100, worse than 61% of nickel alloy grades). Rigid setups, positive-rake carbide, heavy constant feed and flood coolant; low surface speed (20–35 m/min) to avoid work hardening and never dwell in the cut.
Can N06219 HF-A be welded?
Yes — weldability is rated very good (82/100). GTAW/GMAW with matching Ni-Cr-Mo filler, low heat input, interpass under ~120 °C, no preheat or PWHT; keep weld pool clean to avoid hot cracking and grind out heat tint before service.
What surface finishes work on N06219 HF-A?
Pickle (HNO3-HF) or abrasive-blast plus passivation to restore the chromium oxide film; electropolishing gives best crevice-corrosion performance; not anodizable.
Can N06219 HF-A be formed, bent or molded?
Very ductile but high work-hardening rate — expect 2× the press force of 304 stainless, use generous radii and intermediate solution anneals for severe draws.
What is the maximum service temperature of N06219 HF-A?
N06219 HF-A 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 N06219-SA and N06219-CW?
SA is the default condition — standard corrosion-service condition for plate, sheet, bar, pipe and fittings; maximum ductility and corrosion resistance. CW: choose for fasteners, shafts and springs where higher strength is needed and full annealed corrosion performance is not critical. Yield strength is 380 MPa in SA versus 760 MPa in CW.
Sources
- ASTM B575 — Ni-Cr-Mo(-W) Alloy Plate, Sheet, and Strip — ASTM International (2023)
- ASTM B574 / B622 / B619 — Ni-Cr-Mo Alloy Rod, Seamless Pipe and Welded Pipe — ASTM International (2023)
- SAE/ASTM Metals & Alloys in the Unified Numbering System (UNS) — SAE International / ASTM (2022)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- 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.