Aluminum 1080-H24
Temper
AA 1080 · EN AW-1080, AW 1080 · JIS A1080
H24 = strain hardened and partially annealed, half hard
Half-hard temper with retained bendability; widely used for formed sheet parts and roll-formed profiles.
Values for the H24 condition
Other 1080 tempers and conditions
1080 is listed in 12 conditions; see the grade overview at 1080.
Compare all 12 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Default stock condition: choose for deep drawing, spinning, foil, gaskets, cryogenic parts and maximum conductivity. | 25 | 70 | 43 | 20 HB | 59.5 % IACS |
Slightly strain hardened | Essentially annealed sheet that has picked up slight work from levelling or straightening; use where O-temper properties plus flatness are needed. | 28 | 75 | 38 | 21 HB | 59.5 % IACS |
Strain hardened from hot working only | High-purity aluminium (Al 99.8) in the as-hot-worked H112 condition — slightly above annealed strength with guaranteed minimums, retaining excellent formability, conductivity and bright anodizing response. | 30 | 75 | 26 | 21 HB | 59 % IACS |
Strain hardened and partially annealed, quarter hard | Stabilised quarter-hard sheet with better ductility than H12 at the same strength level — good for bending after slitting. | 65 | 90 | 14 | 24 HB | 59 % IACS |
Strain hardened, quarter hard | Light cold work for slightly stiffer sheet that still bends and forms readily. | 70 | 90 | 12 | 25 HB | 59 % IACS |
H24This page Strain hardened and partially annealed, half hard | Half-hard temper with retained bendability; widely used for formed sheet parts and roll-formed profiles. | 80 | 105 | 10 | 27 HB | 59 % IACS |
Strain hardened, half hard | Common general-purpose sheet temper: better handling stiffness with usable bend performance. | 85 | 105 | 9 | 28 HB | 59 % IACS |
Strain hardened and partially annealed, three-quarter hard | Stabilised three-quarter hard strip for stiffer formed components. | 95 | 120 | 7 | 31 HB | 58.5 % IACS |
Strain hardened, three-quarter hard | Choose for flat, springy strip and shallow forming where higher strength matters more than bend radius. | 100 | 120 | 6 | 32 HB | 58.5 % IACS |
Strain hardened and partially annealed, full hard | Stabilised full-hard strip/foil temper for high-strength, dimensionally stable thin gauges. | 120 | 140 | 5 | 34 HB | 58 % IACS |
Strain hardened, full hard | Fully work-hardened strip/foil temper; pick for maximum strength, flatness and slitting quality with minimal bending. | 125 | 140 | 5 | 35 HB | 58 % IACS |
Strain hardened, extra hard | Extra-hard foil and thin strip temper used where the highest cold-worked strength of pure aluminium is required. | 145 | 160 | 4 | 38 HB | 58 % IACS |
What is 1080-H24?
1080-H24 is 1080 in the H24 temper — half-hard temper with retained bendability; widely used for formed sheet parts and roll-formed profiles. 1080-H24 has a yield strength of 80 MPa (11.6 ksi) and a tensile strength of 105 MPa (15.2 ksi) — weaker than 90% of aluminum grades. Elongation at break is 10% and the elastic modulus is 69 GPa (10 Msi). 1080-H24 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).
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 — 59 % IACS, better than 95% of aluminum grades
- Forms and bends easily — 83/100, better than 91% of aluminum grades
Limitations
- Low strength — 80 MPa (11.6 ksi), worse than 90% of aluminum grades
- Limited service temperature — 110°C (230 °F), worse than 89% of aluminum grades
- Difficult to machine — 34/100, worse than 87% of aluminum grades
1080-H24 properties
Typical room-temperature values for 1080-H24; 18 are specific to this condition. Other listed values are 1080 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
1080-H24 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).
Mechanical10
1080-H24 has a yield strength of 80 MPa (11.6 ksi) and a tensile strength of 105 MPa (15.2 ksi) — weaker than 90% of aluminum grades. Elongation at break is 10% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
1080-H24 is rated for continuous service to 110°C (230 °F). It conducts heat at 229 W/m·K (132.3 BTU/hr·ft·°F), better than 96% of aluminum grades. Thermal expansion is 23.6 µm/m·K (13.1 µin/in·°F).
Electrical3
1080-H24 conducts electricity at 59 % IACS, better than 95% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 97% of aluminum grades.
Sustainability4
Producing a kilogram of 1080-H24 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 5%.
Manufacturability7
1080-H24's machinability is poor (34/100, worse than 87% of aluminum grades); weldability excellent (90/100); formability very good (83/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 1080-H24
Is 1080 easy to machine?
Very soft and gummy — use sharp polished high-rake carbide, high speed, generous flood or mist lubrication and avoid dwell to prevent built-up edge and smearing.
Can 1080 be welded?
Excellent by GTAW/GMAW with 1188 or 1100 filler; joint softens to near-O properties in cold-worked tempers and weld strength is limited to ~60–70 MPa.
Can 1080 be formed, bent or molded?
Outstanding cold formability in O/H1x2 tempers — deep drawing, spinning, foil rolling and tight bends; springback is minimal but tearing risk rises sharply in H18/H19.
What surface finishes work on 1080?
Ideal for bright/clear anodizing, chemical brightening and mechanical polishing; accepts conversion coating and paint, but soft surface scratches easily so hard anodize or a protective film is advised for handling.
1080 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 in EN AW-1080A | ≤ 0.15 | 0.05 |
| Fe | ≤ 0.15 | 0.08 |
| Cu | ≤ 0.03 | 0.01 |
| Mn | ≤ 0.02 | 0.01 |
| Mg | ≤ 0.02 | 0.01 |
| Zn | ≤ 0.03 | 0.01 |
| Ti | ≤ 0.03 | 0.01 |
| Ga | ≤ 0.03 | 0.01 |
| V | ≤ 0.05 | 0.01 |
| Others (each)unspecified impurities, each | ≤ 0.02 | — |
| Al99.80 % Al minimum | ≥ 99.8 (balance) | — |
1080-H24 — frequently asked
What is 1080-H24 used for?
1080-H24 is typically used for reflective surfaces and lighting reflectors, electrical capacitor foil, bright-anodized trim, decorative sheet and nameplates, conductor strip and foil and foil for laminates. In short: super pure; ultra conductivity.
What is the yield strength of 1080-H24?
1080-H24 has a typical yield strength of 80 MPa (11.6 ksi) and a tensile strength of 105 MPa (15.2 ksi) — weaker than 90% of aluminum grades. Strength varies by condition: see the 12 listed tempers.
Is 1080-H24 easy to machine?
Not especially — machinability is rated poor (34/100, worse than 87% of aluminum grades). Very soft and gummy — use sharp polished high-rake carbide, high speed, generous flood or mist lubrication and avoid dwell to prevent built-up edge and smearing.
Can 1080-H24 be welded?
Yes — weldability is rated excellent (90/100). Excellent by GTAW/GMAW with 1188 or 1100 filler; joint softens to near-O properties in cold-worked tempers and weld strength is limited to ~60–70 MPa.
What surface finishes work on 1080-H24?
Ideal for bright/clear anodizing, chemical brightening and mechanical polishing; accepts conversion coating and paint, but soft surface scratches easily so hard anodize or a protective film is advised for handling.
Can 1080-H24 be formed, bent or molded?
Outstanding cold formability in O/H1x2 tempers — deep drawing, spinning, foil rolling and tight bends; springback is minimal but tearing risk rises sharply in H18/H19.
What is the maximum service temperature of 1080-H24?
1080-H24 is rated for continuous use to about 110°C (230 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 1080-H24?
Yes — 1080-H24 is available for CNC machining and sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- EN 573-3 / EN 485-2 — Aluminium and aluminium alloys: chemical composition and mechanical properties of sheet, strip and plate — CEN (2019)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — 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.