Nickel Alloy N06210-HF
Grade
UNS N06210
HF = hot Finished / Hot Worked and Annealed
Heavy sections, forgings and thick plate supplied hot worked then annealed and descaled; slightly coarser grain, best creep life.
Values for the HF condition
Other N06210 tempers and conditions
N06210 is listed in 5 conditions; see the grade overview at N06210.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
HFThis page Hot Finished / Hot Worked and Annealed | Heavy sections, forgings and thick plate supplied hot worked then annealed and descaled; slightly coarser grain, best creep life. | 300 | 680 | 42 | 175 HB | 1.4 % IACS |
SADefault Solution Annealed | Standard supply condition for all product forms: maximum ductility, homogeneous solid solution, best creep and oxidation performance. | 320 | 700 | 45 | 180 HB | 1.4 % IACS |
As-welded deposit | Properties of matching-composition weld metal or overlay in the as-deposited condition, before any post-weld anneal. | 380 | 660 | 30 | 200 HB | 1.4 % IACS |
Cold drawn | Choose for close-tolerance bar/wire and higher room-temperature strength where service temperature stays below the recrystallisation range. | 620 | 860 | 25 | 22 HRC | 1.4 % IACS |
Cold worked | Spring-temper strip and hard-drawn tube for springs, clips and thin-wall parts that will not see high temperature. | 780 | 980 | 12 | 29 HRC | 1.4 % IACS |
What is N06210-HF?
N06210-HF is N06210 in the HF grade — heavy sections, forgings and thick plate supplied hot worked then annealed and descaled; slightly coarser grain, best creep life. N06210-HF has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 680 MPa (98.6 ksi) — weaker than 78% of nickel alloy grades. Elongation at break is 42% and the elastic modulus is 210 GPa (30.5 Msi). N06210-HF has a density of 7.9 g/cm³ (0.285 lb/in³), lighter than 92% of nickel alloy grades. It melts at 1,350°C (2,462 °F). SA is the default condition FabDigit quotes; HF is available on request or by drawing note.
Advantages
- High service temperature — 1,150°C (2,102 °F), better than 95% of nickel alloy grades
Limitations
- Low strength — 300 MPa (43.5 ksi), worse than 78% of nickel alloy grades
N06210-HF properties
Typical room-temperature values for N06210-HF; 21 are specific to this condition. Other listed values are N06210 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
N06210-HF has a density of 7.9 g/cm³ (0.285 lb/in³), lighter than 92% of nickel alloy grades. It melts at 1,350°C (2,462 °F).
Mechanical15
N06210-HF has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 680 MPa (98.6 ksi) — weaker than 78% of nickel alloy grades. Elongation at break is 42% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
N06210-HF is rated for continuous service to 1,150°C (2,102 °F). It conducts heat at 11.5 W/m·K (6.64 BTU/hr·ft·°F), better than 57% of nickel alloy grades. Thermal expansion is 13 µm/m·K (7.22 µin/in·°F).
Electrical3
N06210-HF conducts electricity at 1.4 % IACS, worse than 65% of nickel alloy grades.
Chemical & Environmental2
Corrosion resistance is very good (77/100), worse than 56% of nickel alloy grades.
Sustainability4
Producing a kilogram of N06210-HF takes about 200 MJ of energy and emits 14 kg of CO₂ — more than 78% of nickel alloy grades. Typical recycled content is 40%.
Manufacturability7
N06210-HF's machinability is poor (18/100, worse than 61% of nickel alloy grades); weldability very good (70/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with N06210-HF
Is N06210 easy to machine?
Machine like a gummy solid-solution nickel alloy: rigid setup, positive-rake sharp carbide or ceramic tooling, low speed and heavy positive feed to cut under the work-hardened layer, flood high-pressure coolant, never dwell.
Can N06210 be welded?
Readily joined by GTAW/GMAW/PAW with matching or Ni-Cr filler; keep interpass temperature low, restrict heat input to limit grain growth, no preheat needed, and clean off all oxide/sulphur-bearing contaminants before welding.
Can N06210 be formed, bent or molded?
Cold formable but work-hardens rapidly — allow generous bend radii and interstage anneals near 1100 °C with rapid cooling; hot work in the roughly 1150–1200 °C range and finish above 950 °C.
What surface finishes work on N06210?
Not anodisable; pickle in HNO3-HF or grit blast plus pickle to remove the tenacious high-temperature scale, then passivate, grind or electropolish for a clean furnace-ready surface.
N06210 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 for this Ni-Cr-Fe furnace-alloy class; confirm registered limits in the UNS/ASTM listing | 23 – 27 | 25 |
| Feindicative | 8 – 12 | 10 |
| Alforms the protective alumina-bearing scale; indicative | 1.5 – 2.6 | 2.1 |
| Ccarbon kept high for carbide creep strengthening; indicative | 0.1 – 0.25 | 0.18 |
| Si | ≤ 0.5 | 0.2 |
| Mn | ≤ 0.5 | 0.15 |
| Ti | ≤ 0.25 | 0.12 |
| S | ≤ 0.02 | — |
| Nibalance, nominally 60–65 % | balance | — |
N06210-HF — frequently asked
What is N06210-HF used for?
N06210-HF is typically used for furnace muffles, radiant tubes, heat-treating fixtures and combustion equipment. In short: 1150 °C furnace alloy; nitridation-resistant Ni-Cr-Fe; solid-solution, no ageing needed.
What is the yield strength of N06210-HF?
N06210-HF has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 680 MPa (98.6 ksi) — weaker than 78% of nickel alloy grades. Strength varies by condition: see the 5 listed tempers.
Is N06210-HF easy to machine?
Not especially — machinability is rated poor (18/100, worse than 61% of nickel alloy grades). Machine like a gummy solid-solution nickel alloy: rigid setup, positive-rake sharp carbide or ceramic tooling, low speed and heavy positive feed to cut under the work-hardened layer, flood high-pressure coolant, never dwell.
Can N06210-HF be welded?
Yes — weldability is rated very good (70/100). Readily joined by GTAW/GMAW/PAW with matching or Ni-Cr filler; keep interpass temperature low, restrict heat input to limit grain growth, no preheat needed, and clean off all oxide/sulphur-bearing contaminants before welding.
What surface finishes work on N06210-HF?
Not anodisable; pickle in HNO3-HF or grit blast plus pickle to remove the tenacious high-temperature scale, then passivate, grind or electropolish for a clean furnace-ready surface.
Can N06210-HF be formed, bent or molded?
Cold formable but work-hardens rapidly — allow generous bend radii and interstage anneals near 1100 °C with rapid cooling; hot work in the roughly 1150–1200 °C range and finish above 950 °C.
What is the maximum service temperature of N06210-HF?
N06210-HF is rated for continuous use to about 1,150°C (2,102 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between N06210-SA and N06210-CW?
SA is the default condition — standard supply condition for all product forms: maximum ductility, homogeneous solid solution, best creep and oxidation performance. CW: spring-temper strip and hard-drawn tube for springs, clips and thin-wall parts that will not see high temperature. Yield strength is 320 MPa in SA versus 780 MPa in CW.
Sources
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Specialty Handbook — Heat-Resistant Materials — ASM International (1997)
- ASTM B168 / B166 / B167 — Ni-Cr-Fe alloy plate, sheet, strip, rod, bar and tube — ASTM International (2019)
- Metals & Alloys in the Unified Numbering System (UNS) — SAE International / ASTM International (2017)
- High-temperature Ni-Cr-Fe furnace alloy datasheets (VDM Metals, Special Metals, Haynes International) — various producers (2023)
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.