Aluminum 8079-H24
Temper
AA 8079 · EN AW-8079, AW 8079
H24 = strain hardened and partially annealed, half hard
Half-hard but more ductile than H14 — cable-wrap and semi-rigid foil that must still be folded.
Values for the H24 condition
Other 8079 tempers and conditions
8079 is listed in 7 conditions; see the grade overview at 8079.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Standard soft household/packaging foil: maximum ductility, deep-drawable, heat-sealable laminates. | 35 | 85 | 25 | 22 HB | 58 % IACS |
Strain hardened and partially annealed, quarter hard | Slightly stiffer than O while keeping good elongation — semi-rigid container and lidding foil. | 75 | 105 | 10 | 30 HB | 58 % IACS |
H24This page Strain hardened and partially annealed, half hard | Half-hard but more ductile than H14 — cable-wrap and semi-rigid foil that must still be folded. | 100 | 125 | 8 | 34 HB | 57.5 % IACS |
Strain hardened, half hard | Half-hard strip/foil where some springback and handling stiffness are needed. | 105 | 125 | 6 | 35 HB | 57 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter hard foil/strip for cable shielding tape and stiffer laminate carriers. | 125 | 145 | 5 | 39 HB | 57 % IACS |
Strain hardened, full hard | As-rolled full-hard foil: highest strength and tear resistance, used for thin gauge laminating and capacitor/cable foil. | 145 | 160 | 2.5 | 44 HB | 57 % IACS |
Strain hardened, extra hard | Extra-hard as-rolled gauge (typically 6–12 µm) for high-speed lamination and capacitor foil. | 160 | 175 | 2 | 47 HB | 56.5 % IACS |
What is 8079-H24?
8079-H24 is 8079 in the H24 temper — half-hard but more ductile than H14 — cable-wrap and semi-rigid foil that must still be folded. 8079-H24 has a yield strength of 100 MPa (14.5 ksi) and a tensile strength of 125 MPa (18.1 ksi) — weaker than 84% of aluminum grades. Elongation at break is 8% and the elastic modulus is 69 GPa (10 Msi). 8079-H24 has a density of 2.72 g/cm³ (0.0983 lb/in³), heavier than 57% of aluminum grades. It melts at 645°C (1,193 °F).
Advantages
- High electrical conductivity — 57.5 % IACS, better than 95% of aluminum grades
- Conducts heat well — 221 W/m·K (127.7 BTU/hr·ft·°F), better than 94% of aluminum grades
- Forms and bends easily — 75/100, better than 86% of aluminum grades
- Good corrosion resistance — 72/100, better than 83% of aluminum grades
Limitations
- Difficult to machine — 34/100, worse than 87% of aluminum grades
- Low strength — 100 MPa (14.5 ksi), worse than 84% of aluminum grades
8079-H24 properties
Typical room-temperature values for 8079-H24; 18 are specific to this condition. Other listed values are 8079 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
8079-H24 has a density of 2.72 g/cm³ (0.0983 lb/in³), heavier than 57% of aluminum grades. It melts at 645°C (1,193 °F).
Mechanical10
8079-H24 has a yield strength of 100 MPa (14.5 ksi) and a tensile strength of 125 MPa (18.1 ksi) — weaker than 84% of aluminum grades. Elongation at break is 8% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
8079-H24 is rated for continuous service to 130°C (266 °F). It conducts heat at 221 W/m·K (127.7 BTU/hr·ft·°F), better than 94% of aluminum grades. Thermal expansion is 23.6 µm/m·K (13.1 µin/in·°F).
Electrical3
8079-H24 conducts electricity at 57.5 % IACS, better than 95% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), better than 83% of aluminum grades.
Sustainability4
Producing a kilogram of 8079-H24 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 25%.
Manufacturability8
8079-H24's machinability is poor (34/100, worse than 87% of aluminum grades); weldability very good (72/100); formability very good (75/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 8079-H24
Is 8079 easy to machine?
Rarely machined — extremely soft and gummy; foil is slit, die-cut or laser-cut rather than turned or milled.
Can 8079 be welded?
Ultrasonic, resistance seam and foil-to-foil heat sealing work well; fusion welding is impractical at foil gauge.
Can 8079 be formed, bent or molded?
Outstanding cold formability in O temper — deep-drawn smoothwall containers, blister push-through lidding and crimped edges without cracking.
What surface finishes work on 8079?
Normally supplied bright- or matte-rolled and then lacquered, printed or laminated to PET/PE; anodizing is poor due to high Fe.
8079 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 | 0.05 – 0.3 | 0.15 |
| Feprimary strengthening/grain-refining element | 0.7 – 1.3 | 1 |
| Cu | ≤ 0.05 | — |
| Zn | ≤ 0.1 | — |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Alremainder, ≥98.5 % | balance | — |
8079-H24 — frequently asked
What is 8079-H24 used for?
8079-H24 is typically used for household aluminium foil, flexible packaging laminate foil, pharmaceutical blister push-through lidding, air-conditioner fin stock, cable shielding tape and capacitor foil. In short: premium foil alloy.
What is the yield strength of 8079-H24?
8079-H24 has a typical yield strength of 100 MPa (14.5 ksi) and a tensile strength of 125 MPa (18.1 ksi) — weaker than 84% of aluminum grades. Strength varies by condition: see the 7 listed tempers.
Is 8079-H24 easy to machine?
Not especially — machinability is rated poor (34/100, worse than 87% of aluminum grades). Rarely machined — extremely soft and gummy; foil is slit, die-cut or laser-cut rather than turned or milled.
Can 8079-H24 be welded?
Yes — weldability is rated very good (72/100). Ultrasonic, resistance seam and foil-to-foil heat sealing work well; fusion welding is impractical at foil gauge.
What surface finishes work on 8079-H24?
Normally supplied bright- or matte-rolled and then lacquered, printed or laminated to PET/PE; anodizing is poor due to high Fe.
Can 8079-H24 be formed, bent or molded?
Outstanding cold formability in O temper — deep-drawn smoothwall containers, blister push-through lidding and crimped edges without cracking.
What is the maximum service temperature of 8079-H24?
8079-H24 is rated for continuous use to about 130°C (266 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 8079-H24?
Yes — 8079-H24 is available for 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 Designation and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- EN 546-2 Aluminium and aluminium alloys — Foil — Mechanical properties — CEN (2007)
- ASM Handbook Vol. 2: Properties and Selection — Nonferrous Alloys — ASM International (1990)
- Aluminium foil stock alloy datasheets (8011/8079) — Foil producers (Hydro, Novelis, ) (2023)
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.