Aluminum 2065
AA 2065 · UNS A92065
2065 is an Al-Cu-Li plate alloy (A92065) in the 2000-series family, developed for lower wing skins that need high compressive strength together with better corrosion behaviour than earlier Al-Li grades.
Reference datasheet — 2065 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the T851 condition
2065 tempers and conditions
2065 is supplied in 7 conditions, soft to hard. T851 is the default FabDigit quotes; the values on this page are for it.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, supplied only for forming or intermediate processing before re-solution treatment. | 140 | 250 | 18 | 70 HB | 38 % IACS |
Solution heat treated, cold worked and naturally aged | Naturally aged sheet/thin plate condition with high toughness and residual formability before final artificial ageing. | 300 | 430 | 15 | 115 HB | 28 % IACS |
T3, stress relieved by stretching | Low-residual-stress plate for rough machining of large parts prior to artificial ageing to T8. | 305 | 435 | 15 | 118 HB | 28 % IACS |
Solution heat treated and cold worked to a controlled high level | Heavily cold-worked pre-age condition used to raise strength of the subsequent T8 temper in thin plate. | 380 | 470 | 11 | 132 HB | 28 % IACS |
Solution heat treated, cold worked and artificially aged | Lower-wing-skin condition balancing tensile strength with high toughness and slow fatigue crack growth. | 445 | 495 | 10 | 143 HB | 30 % IACS |
T851Default T8, stress relieved by stretching | Standard stocked plate temper: low residual stress for machining plus peak-aged strength and good exfoliation resistance. | 460 | 505 | 9 | 145 HB | 31 % IACS |
Solution heat treated, cold worked and artificially aged | Generic peak/near-peak aged condition; use where the specific stress-relief route is not called out. | 470 | 510 | 8 | 148 HB | 31 % IACS |
What is 2065?
2065 is an Al-Cu-Li plate alloy (A92065) in the 2000-series family, developed for lower wing skins that need high compressive strength together with better corrosion behaviour than earlier Al-Li grades. Supplied as plate in O, T3/T351, T39 and T8/T84/T851 tempers, the default condition provides 460 MPa yield, 505 MPa tensile, 9% elongation, 145 HB, 100 W/m·K and 31% IACS. Service is limited to 120 °C, elongation is modest, and fusion welding is not viable, so structures are friction stir welded or riveted. 2024-T351 plate is the conventional substitute where density is less critical. 2065 has a density of 2.7 g/cm³ (0.0975 lb/in³), lighter than 59% of aluminum grades. It melts at 535°C (995 °F). 2065 has a yield strength of 460 MPa (66.7 ksi) and a tensile strength of 505 MPa (73.2 ksi) — stronger than 92% of aluminum grades. Elongation at break is 9% and the elastic modulus is 78 GPa (11.3 Msi).
What is 2065 used for?
- Lower wing skin plate
- Machined wing panels with integral stiffeners
- Aerospace structural plate
- Fuselage frames machined from plate
- Riveted airframe primary structure
- Friction-stir-welded panel assemblies
Advantages
- Tough — resists crack growth — 40 MPa·√m (36.4 ksi·√in), better than 98% of aluminum grades
- High strength — 460 MPa (66.7 ksi), better than 92% of aluminum grades
Limitations
- Poor heat conductor — 100 W/m·K (57.8 BTU/hr·ft·°F), worse than 93% of aluminum grades
- Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades
- Difficult to weld — 25/100, worse than 76% of aluminum grades
2065 properties
Typical room-temperature values for 2065-T851; bars are the position among aluminum grades.
Physical3
2065 has a density of 2.7 g/cm³ (0.0975 lb/in³), lighter than 59% of aluminum grades. It melts at 535°C (995 °F).
Mechanical13
2065 has a yield strength of 460 MPa (66.7 ksi) and a tensile strength of 505 MPa (73.2 ksi) — stronger than 92% of aluminum grades. Elongation at break is 9% and the elastic modulus is 78 GPa (11.3 Msi).
Thermal6
2065 is rated for continuous service to 120°C (248 °F). It conducts heat at 100 W/m·K (57.8 BTU/hr·ft·°F), worse than 93% of aluminum grades. Thermal expansion is 22.6 µm/m·K (12.6 µin/in·°F).
Electrical3
2065 conducts electricity at 31 % IACS, worse than 68% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (48/100), worse than 58% of aluminum grades.
Sustainability4
Producing a kilogram of 2065 takes about 215 MJ of energy and emits 13.5 kg of CO₂ — more than 93% of aluminum grades. Typical recycled content is 8%.
Manufacturability7
2065's machinability is good (62/100, better than 55% of aluminum grades); weldability poor (25/100); formability poor (30/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. 2065 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 2065
Is 2065 easy to machine?
Machines like a hard 2000 series: sharp polished carbide, high speed, generous coolant and full stress-relieved (T×51) stock to control distortion in thin-web wing panels.
Can 2065 be welded?
Not suited to fusion welding (hot cracking, Li burn-off); join by friction stir welding, laser-FSW hybrid or riveting/bolting.
Can 2065 be formed, bent or molded?
Form in O/T3/T351 before final ageing; T8 plate has limited cold formability and is normally machined or age-formed to contour.
2065 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 |
|---|---|---|
| Cuprincipal strengthening addition | 3.1 – 4.2 | 3.7 |
| Lidensity reduction, modulus increase | 0.6 – 1.1 | 0.9 |
| Mg | 0.2 – 0.6 | 0.4 |
| Agpromotes T1 precipitation in T8 tempers | 0.1 – 0.5 | 0.3 |
| Mn | 0.1 – 0.5 | 0.3 |
| Zrgrain-structure control | 0.05 – 0.15 | 0.1 |
| Zn | ≤ 0.5 | |
| Ti | ≤ 0.1 | |
| Fekept low for toughness | ≤ 0.1 | |
| Sikept low for toughness | ≤ 0.1 | |
| Others (each) | ≤ 0.05 | |
| Others (total) | ≤ 0.15 | |
| Al | balance |
What surface finishes work on 2065?
Alkaline-etch/deoxidize then tartaric-sulfuric or chromic anodize plus chromate-free primer; keep bare Al-Li electrically isolated from carbon-fibre and steel fasteners.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Equivalent designations
Standards and trade names that resolve to Aluminum 2065 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A92065
How much does 2065 cost?
2065 is a high-cost aluminum ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
2065 — frequently asked
What is 2065 used for?
2065 is typically used for lower wing skin plate, machined wing panels with integral stiffeners, aerospace structural plate, fuselage frames machined from plate, riveted airframe primary structure and friction-stir-welded panel assemblies. In short: high-compression Al-Li plate; better corrosion than 2090; wing-skin plate grade.
What is the yield strength of 2065?
2065 has a typical yield strength of 460 MPa (66.7 ksi) and a tensile strength of 505 MPa (73.2 ksi) — stronger than 92% of aluminum grades. Strength varies by condition: see the 7 listed tempers.
Is 2065 easy to machine?
Reasonably — machinability is rated good (62/100, better than 55% of aluminum grades). Machines like a hard 2000 series: sharp polished carbide, high speed, generous coolant and full stress-relieved (T×51) stock to control distortion in thin-web wing panels.
Can 2065 be welded?
Not readily — weldability is rated poor (25/100). Not suited to fusion welding (hot cracking, Li burn-off); join by friction stir welding, laser-FSW hybrid or riveting/bolting.
What surface finishes work on 2065?
Alkaline-etch/deoxidize then tartaric-sulfuric or chromic anodize plus chromate-free primer; keep bare Al-Li electrically isolated from carbon-fibre and steel fasteners.
Can 2065 be formed, bent or molded?
Form in O/T3/T351 before final ageing; T8 plate has limited cold formability and is normally machined or age-formed to contour.
What is the maximum service temperature of 2065?
2065 is rated for continuous use to about 120°C (248 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 2065-T851 and 2065-O?
T851 is the default condition — standard stocked plate temper: low residual stress for machining plus peak-aged strength and good exfoliation resistance. O: softest condition, supplied only for forming or intermediate processing before re-solution treatment. Yield strength is 460 MPa in T851 versus 140 MPa in O.
How much does 2065 cost?
2065 is a high-cost aluminum ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- AIRWARE Al-Cu-Li plate product information — Constellium (2021)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- MMPDS-18 Metallic Materials Properties Development and Standardization — Battelle/FAA (2023)
- AMS 4472 / ASTM B209 aluminium plate practices (analogous Al-Li products) — SAE / ASTM (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.