Aluminum 8011A-O (Annealed)
Temper
AA 8011A · EN AW-8011A
Pick for maximum ductility: household foil, cold-formable (Alu-Alu) blister base web, laminating and deep-draw work.
Values for the O condition
Other 8011A tempers and conditions
8011A is listed in 10 conditions; see the grade overview at 8011A.
Compare all 10 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
OThis page Annealed | Pick for maximum ductility: household foil, cold-formable (Alu-Alu) blister base web, laminating and deep-draw work. | 40 | 105 | 28 | 26 HB | 57 % IACS |
Slightly strain hardened | Use where near-O ductility is needed but the coil has been levelled/straightened, e.g. light-gauge strip and fin stock. | 50 | 115 | 22 | 29 HB | 56 % IACS |
Strain hardened and partially annealed, quarter hard | Stabilised soft-intermediate temper: better bendability and flatter coil than H12 at similar strength. | 80 | 125 | 14 | 32 HB | 56 % IACS |
Strain hardened, quarter hard | Lightly work-hardened strip when O is too limp but full forming ductility is still required. | 90 | 120 | 10 | 34 HB | 56 % IACS |
Strain hardened and partially annealed, half hard | Best strength/ductility compromise for deep-drawn foil containers, semi-rigid trays and stamped closures. | 105 | 145 | 9 | 38 HB | 55.5 % IACS |
Strain hardened, half hard | Most common semi-rigid strip temper: closures, caps, lamp caps, stamped light-gauge parts. | 115 | 140 | 6 | 40 HB | 55.5 % IACS |
Strain hardened and partially annealed, three-quarter hard | Higher-strength stabilised temper for rigid containers and closures that still need moderate flanging. | 125 | 158 | 6 | 44 HB | 55 % IACS |
Strain hardened, three-quarter hard | Choose when higher stiffness/strength is needed with only mild bending, e.g. rigid closures and shallow-formed strip. | 135 | 160 | 4 | 45 HB | 55 % IACS |
H18Default Strain hardened, full hard | Default supply condition for hard foil: pharmaceutical blister lidding, container/food foil stock and lacquered laminates needing puncture resistance. | 155 | 175 | 3 | 50 HB | 55 % IACS |
Strain hardened, extra hard | Extra-hard rolled foil/strip for maximum tensile strength where formability is not required. | 175 | 195 | 2 | 54 HB | 55 % IACS |
What is 8011A-O?
8011A-O is 8011A in the O temper — pick for maximum ductility: household foil, cold-formable (Alu-Alu) blister base web, laminating and deep-draw work. 8011A-O has a yield strength of 40 MPa (5.8 ksi) and a tensile strength of 105 MPa (15.2 ksi) — weaker than 96% of aluminum grades. Elongation at break is 28% and the elastic modulus is 69 GPa (10 Msi). 8011A-O has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 640°C (1,184 °F). H18 is the default condition FabDigit quotes; O is available on request or by drawing note.
Advantages
- Ductile — tolerates forming and impact — 28%, better than 96% of aluminum grades
- Forms and bends easily — 95/100, better than 96% of aluminum grades
- High electrical conductivity — 57 % IACS, better than 94% of aluminum grades
- Conducts heat well — 218 W/m·K (126 BTU/hr·ft·°F), better than 93% of aluminum grades
- High service temperature — 180°C (356 °F), better than 86% of aluminum grades
Limitations
- Low strength — 40 MPa (5.8 ksi), worse than 96% of aluminum grades
- Difficult to machine — 28/100, worse than 94% of aluminum grades
- Hard to polish — 40/100, worse than 91% of aluminum grades
8011A-O properties
Typical room-temperature values for 8011A-O; 15 are specific to this condition. Other listed values are 8011A reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
8011A-O has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 640°C (1,184 °F).
Mechanical11
8011A-O has a yield strength of 40 MPa (5.8 ksi) and a tensile strength of 105 MPa (15.2 ksi) — weaker than 96% of aluminum grades. Elongation at break is 28% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
8011A-O is rated for continuous service to 180°C (356 °F). It conducts heat at 218 W/m·K (126 BTU/hr·ft·°F), better than 93% of aluminum grades. Thermal expansion is 23.4 µm/m·K (13 µin/in·°F).
Electrical3
8011A-O conducts electricity at 57 % IACS, better than 94% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (60/100), better than 62% of aluminum grades.
Sustainability4
Producing a kilogram of 8011A-O takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 30%.
Manufacturability7
8011A-O's machinability is poor (28/100, worse than 94% of aluminum grades); weldability very good (80/100); formability excellent (95/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 8011A-O
Is 8011A easy to machine?
Rarely machined; in soft tempers it is gummy and needs polished high-rake tools, high speed and flood lubricant — blank, slit or die-cut instead.
Can 8011A be welded?
Non-heat-treatable and readily GTAW/GMAW welded with 4043 or 1100 filler in strip gauges, but foil is joined by heat-sealing lacquer, adhesive lamination or ultrasonic/resistance methods.
Can 8011A be formed, bent or molded?
Excellent in O/H2x tempers for deep drawing, embossing and cold-form blister; H18/H19 hard foil should only be lightly bent as it cracks, and interanneal or specify H24 for severe draws.
What surface finishes work on 8011A?
Normally supplied degreased and coil-coated, printed or lacquered; conversion coating gives good paint/lacquer adhesion, while anodising is only protective (grey, non-decorative) because of the Fe/Si intermetallics.
8011A 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 |
|---|---|---|
| Si | 0.4 – 0.8 | 0.6 |
| FeFe-bearing intermetallics control grain size in foil | 0.5 – 1 | 0.75 |
| Cu | ≤ 0.1 | — |
| Mn | ≤ 0.1 | — |
| Mg | ≤ 0.1 | — |
| Cr | ≤ 0.1 | — |
| Zn | ≤ 0.1 | — |
| Ti | ≤ 0.05 | — |
| Others (each)total 0.15 max | ≤ 0.05 | — |
| Al | balance | — |
8011A-O — frequently asked
What is 8011A-O used for?
8011A-O is typically used for foil packaging, closures & bottle caps, heat exchanger fin stock and flexible packaging laminates. In short: formable foil-gauge aluminum; good sealing and heat transfer; non-heat-treatable Al-Fe-Si.
What is the yield strength of 8011A-O?
8011A-O has a typical yield strength of 40 MPa (5.8 ksi) and a tensile strength of 105 MPa (15.2 ksi) — weaker than 96% of aluminum grades. Strength varies by condition: see the 10 listed tempers.
Is 8011A-O easy to machine?
Not especially — machinability is rated poor (28/100, worse than 94% of aluminum grades). Rarely machined; in soft tempers it is gummy and needs polished high-rake tools, high speed and flood lubricant — blank, slit or die-cut instead.
Can 8011A-O be welded?
Yes — weldability is rated very good (80/100). Non-heat-treatable and readily GTAW/GMAW welded with 4043 or 1100 filler in strip gauges, but foil is joined by heat-sealing lacquer, adhesive lamination or ultrasonic/resistance methods.
What surface finishes work on 8011A-O?
Normally supplied degreased and coil-coated, printed or lacquered; conversion coating gives good paint/lacquer adhesion, while anodising is only protective (grey, non-decorative) because of the Fe/Si intermetallics.
Can 8011A-O be formed, bent or molded?
Excellent in O/H2x tempers for deep drawing, embossing and cold-form blister; H18/H19 hard foil should only be lightly bent as it cracks, and interanneal or specify H24 for severe draws.
What is the maximum service temperature of 8011A-O?
8011A-O is rated for continuous use to about 180°C (356 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 8011A-H18 and 8011A-O?
H18 is the default condition — default supply condition for hard foil: pharmaceutical blister lidding, container/food foil stock and lacquered laminates needing puncture resistance. O: pick for maximum ductility: household foil, cold-formable (Alu-Alu) blister base web, laminating and deep-draw work. Yield strength is 155 MPa in H18 versus 40 MPa in O.
Sources
- EN 573-3 — Chemical composition of wrought aluminium alloys — CEN (2019)
- EN 485-2 — Aluminium sheet, strip and plate: mechanical properties — CEN (2021)
- EN 546-2 — Aluminium foil: mechanical properties — CEN (2007)
- GB/T 3198 — Aluminium and aluminium alloy foil — SAC (2020)
- ASM Handbook Vol. 2 — Properties of Nonferrous Alloys — ASM International (1990)
- International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
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.