Aluminum 8009 F-EXT
Temper · default condition
AA 8009
Standard supplied condition for bar, profile and forging stock; highest longitudinal strength.
Values for the F-EXT condition
Other 8009 tempers and conditions
8009 is listed in 3 conditions; see the grade overview at 8009.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
F | Billet or near-net P/M preform condition; use only where subsequent hot working is not possible, as ductility is lowest. | 320 | 365 | 7 | 108 HB | 32 % IACS |
isothermally forged from extruded stock | For net-shape structural fittings; slightly lower strength than extrusion but more uniform through-thickness. | 345 | 390 | 12 | 112 HB | 33 % IACS |
F-EXTDefaultThis page F | Standard supplied condition for bar, profile and forging stock; highest longitudinal strength. | 385 | 415 | 12 | 120 HB | 33 % IACS |
What is 8009 F-EXT?
8009 F-EXT is 8009 in the F-EXT temper — standard supplied condition for bar, profile and forging stock; highest longitudinal strength. 8009 F-EXT has a yield strength of 385 MPa (55.8 ksi) and a tensile strength of 415 MPa (60.2 ksi) — stronger than 87% of aluminum grades. Elongation at break is 12% and the elastic modulus is 88 GPa (12.8 Msi). 8009 F-EXT has a density of 2.94 g/cm³ (0.106 lb/in³), heavier than 99% of aluminum grades. It melts at 645°C (1,193 °F).
Advantages
- High service temperature — 315°C (599 °F), better than 99% of aluminum grades
- Stiff — 88 GPa (12.8 Msi), better than 98% of aluminum grades
- High strength — 385 MPa (55.8 ksi), better than 87% of aluminum grades
Limitations
- High embodied carbon — 16 kg CO₂/kg, worse than 98% of aluminum grades
- Difficult to machine — 40/100, worse than 81% of aluminum grades
- Difficult to weld — 25/100, worse than 76% of aluminum grades
8009 F-EXT properties
Typical room-temperature values for 8009 F-EXT; 22 are specific to this condition. Other listed values are 8009 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical2
8009 F-EXT has a density of 2.94 g/cm³ (0.106 lb/in³), heavier than 99% of aluminum grades. It melts at 645°C (1,193 °F).
Mechanical16
8009 F-EXT has a yield strength of 385 MPa (55.8 ksi) and a tensile strength of 415 MPa (60.2 ksi) — stronger than 87% of aluminum grades. Elongation at break is 12% and the elastic modulus is 88 GPa (12.8 Msi).
Thermal6
8009 F-EXT is rated for continuous service to 315°C (599 °F). It conducts heat at 130 W/m·K (75.1 BTU/hr·ft·°F), worse than 65% of aluminum grades. Thermal expansion is 21.5 µm/m·K (11.9 µin/in·°F).
Electrical3
8009 F-EXT conducts electricity at 33 % IACS, worse than 57% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (50/100), worse than 56% of aluminum grades.
Sustainability4
Producing a kilogram of 8009 F-EXT takes about 260 MJ of energy and emits 16 kg of CO₂ — more than 99% of aluminum grades. Typical recycled content is 0%.
Manufacturability7
8009 F-EXT's machinability is fair (40/100, worse than 81% of aluminum grades); weldability poor (25/100); formability poor (30/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 8009 F-EXT
Is 8009 easy to machine?
Machine like a high-silicon Al: PCD or fine-grain uncoated carbide, high speed, light feed and flood coolant — the Al12(Fe,V)3Si particles wear HSS quickly.
Can 8009 be welded?
Avoid fusion welding (dispersoid coarsening kills elevated-temperature strength); use friction/inertia welding, FSW, diffusion bonding or mechanical fastening.
Can 8009 be formed, bent or molded?
Produced only by rapid-solidification powder/ribbon consolidation plus hot extrusion or hot rolling; warm-form sheet at 200–350 °C, cold formability is poor.
What surface finishes work on 8009?
Anodizing gives dark, patchy films; prefer chromate-free conversion coating plus high-temperature primer, or bare use with a thin sol-gel/paint system.
8009 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 |
|---|---|---|
| Febound in Al12(Fe,V)3Si dispersoids | 8 – 9 | 8.5 |
| V | 1.1 – 1.5 | 1.3 |
| Si | 1.5 – 2 | 1.7 |
| Opowder-route surface oxide, typical | ≤ 0.3 | 0.15 |
| Al | balance | — |
8009 F-EXT — frequently asked
What is 8009 F-EXT used for?
8009 F-EXT is typically used for aerospace elevated-temperature components, turbine engine parts and high-temperature airframe structures. In short: 315 °C service aluminum; dispersion-strengthened, not age-hardened; specialty aerospace availability.
What is the yield strength of 8009 F-EXT?
8009 F-EXT has a typical yield strength of 385 MPa (55.8 ksi) and a tensile strength of 415 MPa (60.2 ksi) — stronger than 87% of aluminum grades. Strength varies by condition: see the 3 listed tempers.
Is 8009 F-EXT easy to machine?
Not especially — machinability is rated fair (40/100, worse than 81% of aluminum grades). Machine like a high-silicon Al: PCD or fine-grain uncoated carbide, high speed, light feed and flood coolant — the Al12(Fe,V)3Si particles wear HSS quickly.
Can 8009 F-EXT be welded?
Not readily — weldability is rated poor (25/100). Avoid fusion welding (dispersoid coarsening kills elevated-temperature strength); use friction/inertia welding, FSW, diffusion bonding or mechanical fastening.
What surface finishes work on 8009 F-EXT?
Anodizing gives dark, patchy films; prefer chromate-free conversion coating plus high-temperature primer, or bare use with a thin sol-gel/paint system.
Can 8009 F-EXT be formed, bent or molded?
Produced only by rapid-solidification powder/ribbon consolidation plus hot extrusion or hot rolling; warm-form sheet at 200–350 °C, cold formability is poor.
What is the maximum service temperature of 8009 F-EXT?
8009 F-EXT is rated for continuous use to about 315°C (599 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 8009 F-EXT and 8009 F-HIP?
F-EXT is the default condition — standard supplied condition for bar, profile and forging stock; highest longitudinal strength. F-HIP: billet or near-net P/M preform condition; use only where subsequent hot working is not possible, as ductility is lowest. Yield strength is 385 MPa in F-EXT versus 320 MPa in F-HIP.
Sources
- FVS0812 (Alloy 8009) Rapidly Solidified Aluminium Alloy Data — Allied-Signal Inc. (Metals Div.) (1990)
- ASM Handbook Vol. 2: Properties and Selection — Nonferrous Alloys and Special-Purpose Materials (P/M and RS aluminium alloys) — ASM International (1990)
- ASM Handbook Vol. 7: Powder Metal Technologies and Applications — ASM International (1998)
- Aluminum Association International Alloy Designations (Teal Sheets) — 8000-series registrations — The Aluminum Association (2015)
- Elevated-temperature behaviour of Al-Fe-V-Si dispersion-strengthened alloys (NASA/technical literature summaries) — NASA Langley Research Center (1992)
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.