Aluminum 1080A
AA 1080A · EN AW-1080A, 3.0285 · BS 1A
1080A is a refined commercially pure aluminum grade (99.8% Al) in the EN 573 1000-series family, corresponding to the former British 1A designation, and is strengthened only by cold work.
Reference datasheet — 1080A 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 O condition
1080A tempers and conditions
1080A is supplied in 11 conditions, soft to hard. O is the default FabDigit quotes; the values on this page are for it.
Compare all 11 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Pick for maximum ductility, deep drawing, spinning and highest reflectivity/conductivity. | 20 | 70 | 40 | 19 HB | 62 % IACS |
Slightly strain hardened | Use where near-O ductility is wanted but the product has been levelled/stretched after annealing. | 25 | 72 | 35 | 20 HB | 62 % IACS |
Strain hardened from hot working only | Standard condition for hot-rolled plate and extruded/hot-formed product of this grade. | 30 | 75 | 25 | 21 HB | 62 % IACS |
Strain hardened and partially annealed, quarter hard | Stabilised soft-side temper: H12-level strength but noticeably better ductility for forming. | 60 | 85 | 14 | 23 HB | 62 % IACS |
Strain hardened, quarter hard | Light cold work for slightly stiffer sheet that still bends and forms readily. | 70 | 85 | 12 | 24 HB | 61.5 % IACS |
Strain hardened and partially annealed, half hard | Best strength/bendability compromise for sheet that will still be roll-formed or hemmed. | 75 | 100 | 10 | 26 HB | 61.5 % IACS |
Strain hardened, half hard | The common general-purpose cold-rolled sheet temper: adequate stiffness with usable bend performance. | 85 | 100 | 8 | 27 HB | 61.5 % IACS |
Strain hardened and partially annealed, three-quarter hard | For stiff strip/panel with more residual ductility than H16 of the same strength level. | 90 | 115 | 7 | 30 HB | 61 % IACS |
Strain hardened, three-quarter hard | Choose for flat panels and strip needing higher stiffness with only mild bending. | 100 | 115 | 5 | 30 HB | 61 % IACS |
Strain hardened, full hard | Maximum strength temper — typical for hard foil, strip and flat springs where no forming follows. | 115 | 130 | 4 | 35 HB | 61 % IACS |
Strain hardened, extra hard | Extra-hard rolled foil condition when maximum as-rolled strength and flatness are required. | 130 | 145 | 3 | 38 HB | 61 % IACS |
What is 1080A?
1080A is a refined commercially pure aluminum grade (99.8% Al) in the EN 573 1000-series family, corresponding to the former British 1A designation, and is strengthened only by cold work. It is specified for reflective surfaces, corrosion service and electronic foil, with 231 W/m·K thermal conductivity, 62% IACS electrical conductivity and the highest formability rating in the series; forms include foil, sheet, strip and plate in O and H1x/H2x tempers. Annealed strength is low (20 MPa yield, 70 MPa tensile, 19 HB) and machinability is poor at 20, so heavy machining is best avoided. Service temperature is limited to about 200 °C; 1070A or 1050A are the usual choices when purity requirements are less strict. 1080A has a density of 2.7 g/cm³ (0.0975 lb/in³), lighter than 59% of aluminum grades. It melts at 646°C (1,195 °F). 1080A has a yield strength of 20 MPa (2.9 ksi) and a tensile strength of 70 MPa (10.2 ksi) — weaker than 100% of aluminum grades. Elongation at break is 40% and the elastic modulus is 69 GPa (10 Msi).
What is 1080A used for?
- mirror-finish reflectors
- chemical vessels
- electronic foil
- decorative anodizing
Advantages
- Forms and bends easily — 100/100, better than 100% of aluminum grades
- Polishes to a fine finish — 95/100, better than 100% of aluminum grades
- High electrical conductivity — 62 % IACS, better than 99% of aluminum grades
- Ductile — tolerates forming and impact — 40%, better than 98% of aluminum grades
- Conducts heat well — 231 W/m·K (133.5 BTU/hr·ft·°F), better than 97% of aluminum grades
Limitations
- Low strength — 20 MPa (2.9 ksi), worse than 100% of aluminum grades
- Difficult to machine — 20/100, worse than 99% of aluminum grades
1080A properties
Typical room-temperature values for 1080A-O; bars are the position among aluminum grades.
Physical3
1080A has a density of 2.7 g/cm³ (0.0975 lb/in³), lighter than 59% of aluminum grades. It melts at 646°C (1,195 °F).
Mechanical11
1080A has a yield strength of 20 MPa (2.9 ksi) and a tensile strength of 70 MPa (10.2 ksi) — weaker than 100% of aluminum grades. Elongation at break is 40% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
1080A is rated for continuous service to 200°C (392 °F). It conducts heat at 231 W/m·K (133.5 BTU/hr·ft·°F), better than 97% of aluminum grades. Thermal expansion is 23.5 µm/m·K (13.1 µin/in·°F).
Electrical3
1080A conducts electricity at 62 % IACS, better than 99% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 97% of aluminum grades.
Sustainability4
Producing a kilogram of 1080A takes about 215 MJ of energy and emits 13 kg of CO₂ — more than 93% of aluminum grades. Typical recycled content is 2%.
Manufacturability8
1080A's machinability is poor (20/100, worse than 99% of aluminum grades); weldability excellent (92/100); formability excellent (100/100).
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. 1080A is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1080A
Is 1080A easy to machine?
Very gummy — use polished high-rake carbide, high speed, sharp edges and generous lubricant/air blast to avoid built-up edge and smearing; harder H16/H18 tempers cut cleaner than O.
Can 1080A be welded?
Excellent with TIG/MIG using 1188 or 1100 filler; resistance and friction-stir welding also work, but the weld zone anneals back to O-temper strength.
Can 1080A be formed, bent or molded?
Outstanding cold formability — deep drawing, spinning, foil rolling and tight-radius bending in O/H1x2 tempers; expect strong work hardening and interstage annealing at 340–410 °C.
1080A 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 |
|---|---|---|
| SiSi + Fe ≤ 0.20 for some producer specs | ≤ 0.15 | 0.06 |
| Fe | ≤ 0.15 | 0.08 |
| Cu | ≤ 0.03 | 0.01 |
| Mn | ≤ 0.02 | 0.01 |
| Mg | ≤ 0.02 | 0.01 |
| Zn | ≤ 0.06 | 0.01 |
| Tigrain refiner residual | ≤ 0.02 | 0.01 |
| Ga | ≤ 0.03 | 0.01 |
| V | ≤ 0.05 | 0.01 |
| Others (each)total per EN 573-3 | ≤ 0.02 | |
| AlAl99.8(A) | ≥ 99.8 (balance) |
What surface finishes work on 1080A?
Bright dips and specular polishes to very high reflectivity; clear/bright anodizing gives water-clear films, and the soft substrate needs care to avoid handling scratches before coating.
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 1080A in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- AW-1080A3.0285
- BS
- 1A
How much does 1080A cost?
1080A is a premium-cost aluminum ($$$), cheaper than about 51% 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.
1080A — frequently asked
What is 1080A used for?
1080A is typically used for mirror-finish reflectors, chemical vessels, electronic foil and decorative anodizing. In short: highest formability in family; reflector-grade purity; cold-work strengthening only.
What is the yield strength of 1080A?
1080A has a typical yield strength of 20 MPa (2.9 ksi) and a tensile strength of 70 MPa (10.2 ksi) — weaker than 100% of aluminum grades. Strength varies by condition: see the 11 listed tempers.
Is 1080A easy to machine?
Not especially — machinability is rated poor (20/100, worse than 99% of aluminum grades). Very gummy — use polished high-rake carbide, high speed, sharp edges and generous lubricant/air blast to avoid built-up edge and smearing; harder H16/H18 tempers cut cleaner than O.
Can 1080A be welded?
Yes — weldability is rated excellent (92/100). Excellent with TIG/MIG using 1188 or 1100 filler; resistance and friction-stir welding also work, but the weld zone anneals back to O-temper strength.
What surface finishes work on 1080A?
Bright dips and specular polishes to very high reflectivity; clear/bright anodizing gives water-clear films, and the soft substrate needs care to avoid handling scratches before coating.
Can 1080A be formed, bent or molded?
Outstanding cold formability — deep drawing, spinning, foil rolling and tight-radius bending in O/H1x2 tempers; expect strong work hardening and interstage annealing at 340–410 °C.
What is the maximum service temperature of 1080A?
1080A is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1080A-O and 1080A-H19?
O is the default condition — pick for maximum ductility, deep drawing, spinning and highest reflectivity/conductivity. H19: extra-hard rolled foil condition when maximum as-rolled strength and flatness are required. Yield strength is 20 MPa in O versus 130 MPa in H19.
How much does 1080A cost?
1080A is a premium-cost aluminum ($$$), cheaper than about 51% 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
- EN 573-3 Aluminium and aluminium alloys — Chemical composition of wrought products — CEN (2019)
- EN 485-2 Aluminium and aluminium alloys — Sheet, strip and plate: Mechanical properties — CEN (2016)
- International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
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.