Aluminum 1080A-H16
Temper
AA 1080A · EN AW-1080A, 3.0285 · BS 1A
H16 = strain hardened, three-quarter hard
Choose for flat panels and strip needing higher stiffness with only mild bending.
Values for the H16 condition
Other 1080A tempers and conditions
1080A is listed in 11 conditions; see the grade overview at 1080A.
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 |
H16This page 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-H16?
1080A-H16 is 1080A in the H16 temper — choose for flat panels and strip needing higher stiffness with only mild bending. 1080A-H16 has a yield strength of 100 MPa (14.5 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 84% of aluminum grades. Elongation at break is 5% and the elastic modulus is 69 GPa (10 Msi). 1080A-H16 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). O is the default condition FabDigit quotes; H16 is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 95/100, better than 100% of aluminum grades
- Good corrosion resistance — 80/100, better than 97% of aluminum grades
- Conducts heat well — 229 W/m·K (132.3 BTU/hr·ft·°F), better than 96% of aluminum grades
- High electrical conductivity — 61 % IACS, better than 96% of aluminum grades
- Readily welded — 92/100, better than 95% of aluminum grades
Limitations
- Difficult to machine — 30/100, worse than 92% of aluminum grades
- Limited service temperature — 100°C (212 °F), worse than 91% of aluminum grades
- Low strength — 100 MPa (14.5 ksi), worse than 84% of aluminum grades
1080A-H16 properties
Typical room-temperature values for 1080A-H16; 11 are specific to this condition. Other listed values are 1080A reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
1080A-H16 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-H16 has a yield strength of 100 MPa (14.5 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 84% of aluminum grades. Elongation at break is 5% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
1080A-H16 is rated for continuous service to 100°C (212 °F). It conducts heat at 229 W/m·K (132.3 BTU/hr·ft·°F), better than 96% of aluminum grades. Thermal expansion is 23.5 µm/m·K (13.1 µin/in·°F).
Electrical3
1080A-H16 conducts electricity at 61 % IACS, better than 96% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 97% of aluminum grades.
Sustainability4
Producing a kilogram of 1080A-H16 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-H16's machinability is poor (30/100, worse than 92% of aluminum grades); weldability excellent (92/100); formability good (65/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 1080A-H16
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.
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.
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) | — |
1080A-H16 — frequently asked
What is 1080A-H16 used for?
1080A-H16 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-H16?
1080A-H16 has a typical yield strength of 100 MPa (14.5 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 84% of aluminum grades. Strength varies by condition: see the 11 listed tempers.
Is 1080A-H16 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 92% 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-H16 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-H16?
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-H16 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-H16?
1080A-H16 is rated for continuous use to about 100°C (212 °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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.