Aluminum A1N00-H24
Temper
H24 = strain hardened and partially annealed, half hard
Half-hard strip with extra bendability — common for stamped, formed and rolled foil products.
Values for the H24 condition
Other A1N00 tempers and conditions
A1N00 is listed in 9 conditions; see the grade overview at A1N00.
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Softest, most formable condition — deep drawing, foil converting and any application needing maximum ductility. | 35 | 90 | 38 | 23 HB | 59 % IACS |
As fabricated | Mill-finish hot-rolled coil or plate with no guaranteed mechanical properties — feedstock for further rolling. | 45 | 95 | 30 | 25 HB | 59 % IACS |
Strain hardened and partially annealed, quarter hard | Same strength class as H12 but with better ductility and flatness from a partial anneal. | 85 | 110 | 16 | 28 HB | 58.5 % IACS |
Strain hardened, quarter hard | Light cold work for slightly higher strength while keeping good bending and forming. | 100 | 110 | 12 | 28 HB | 58.5 % IACS |
H24This page Strain hardened and partially annealed, half hard | Half-hard strip with extra bendability — common for stamped, formed and rolled foil products. | 100 | 125 | 12 | 32 HB | 58.5 % IACS |
Strain hardened, half hard | The usual general-purpose sheet temper: workable balance of strength, flatness and bending. | 115 | 125 | 9 | 32 HB | 58.5 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter-hard strip with improved ductility over H16 for light forming. | 125 | 145 | 8 | 38 HB | 58 % IACS |
Strain hardened, three-quarter hard | Higher strength strip where only gentle forming or flat use is needed. | 140 | 145 | 6 | 38 HB | 58 % IACS |
Strain hardened, full hard | Maximum cold-worked strength; the standard temper for hard foil and capacitor/packaging foil stock. | 150 | 165 | 5 | 44 HB | 57 % IACS |
What is A1N00-H24?
A1N00-H24 is A1N00 in the H24 temper — half-hard strip with extra bendability — common for stamped, formed and rolled foil products. A1N00-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 12% and the elastic modulus is 69 GPa (10 Msi). A1N00-H24 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 643°C (1,189 °F). O is the default condition FabDigit quotes; H24 is available on request or by drawing note.
Advantages
- High electrical conductivity — 58.5 % IACS, better than 95% of aluminum grades
- Readily welded — 92/100, better than 95% of aluminum grades
- Conducts heat well — 220 W/m·K (127.1 BTU/hr·ft·°F), better than 94% of aluminum grades
- Forms and bends easily — 84/100, better than 91% of aluminum grades
- Good corrosion resistance — 72/100, better than 83% of aluminum grades
Limitations
- Difficult to machine — 30/100, worse than 92% of aluminum grades
- Low strength — 100 MPa (14.5 ksi), worse than 84% of aluminum grades
A1N00-H24 properties
Typical room-temperature values for A1N00-H24; 19 are specific to this condition. Other listed values are A1N00 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
A1N00-H24 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 643°C (1,189 °F).
Mechanical11
A1N00-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 12% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
A1N00-H24 is rated for continuous service to 140°C (284 °F). It conducts heat at 220 W/m·K (127.1 BTU/hr·ft·°F), better than 94% of aluminum grades. Thermal expansion is 23.6 µm/m·K (13.1 µin/in·°F).
Electrical3
A1N00-H24 conducts electricity at 58.5 % 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 A1N00-H24 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 20%.
Manufacturability7
A1N00-H24's machinability is poor (30/100, worse than 92% of aluminum grades); weldability excellent (92/100); formability very good (84/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with A1N00-H24
Is A1N00 easy to machine?
Very soft and gummy — use polished high-rake carbide, high surface speed, sharp tools and generous lubricant to avoid built-up edge; hard tempers (H18) chip better than O.
Can A1N00 be welded?
Excellent with GTAW/GMAW using ER1100 or ER4043 filler; resistance welding and brazing are also routine, but the weld softens to near-O strength in the HAZ.
Can A1N00 be formed, bent or molded?
Outstanding cold formability in O/H22 — deep draws, spinning, and rolling to sub-10 µm foil; intermediate anneals restore ductility in hard tempers.
What surface finishes work on A1N00?
Takes clear/bright anodize, chemical conversion coating, lacquer and printing well; the anodic layer stays thin and soft, so use it for appearance and corrosion rather than wear.
A1N00 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+Fecombined limit per JIS H 4000 | ≤ 1 | — |
| Cu | 0.05 – 0.2 | 0.12 |
| Mn | ≤ 0.05 | — |
| MgMg allowance is the main difference from 1100 | ≤ 0.1 | — |
| Zn | ≤ 0.1 | — |
| Others (each) | ≤ 0.05 | — |
| Al99.00 % min by difference | ≥ 99 (balance) | — |
A1N00-H24 — frequently asked
What is A1N00-H24 used for?
A1N00-H24 is typically used for electrolytic capacitor foil, high-purity electrical foil, etched anode and cathode foil stock, thin-gauge conductor strip, foil laminates and shielding and reflective foil sheet. In short: JIS capacitor-foil purity grade; near-maximum 1000-series formability; uniform etching characteristics.
What is the yield strength of A1N00-H24?
A1N00-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 9 listed tempers.
Is A1N00-H24 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 92% of aluminum grades). Very soft and gummy — use polished high-rake carbide, high surface speed, sharp tools and generous lubricant to avoid built-up edge; hard tempers (H18) chip better than O.
Can A1N00-H24 be welded?
Yes — weldability is rated excellent (92/100). Excellent with GTAW/GMAW using ER1100 or ER4043 filler; resistance welding and brazing are also routine, but the weld softens to near-O strength in the HAZ.
What surface finishes work on A1N00-H24?
Takes clear/bright anodize, chemical conversion coating, lacquer and printing well; the anodic layer stays thin and soft, so use it for appearance and corrosion rather than wear.
Can A1N00-H24 be formed, bent or molded?
Outstanding cold formability in O/H22 — deep draws, spinning, and rolling to sub-10 µm foil; intermediate anneals restore ductility in hard tempers.
What is the maximum service temperature of A1N00-H24?
A1N00-H24 is rated for continuous use to about 140°C (284 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between A1N00-O and A1N00-H18?
O is the default condition — softest, most formable condition — deep drawing, foil converting and any application needing maximum ductility. H18: maximum cold-worked strength; the standard temper for hard foil and capacitor/packaging foil stock. Yield strength is 35 MPa in O versus 150 MPa in H18.
Sources
- JIS H 4000 — Aluminium and aluminium alloy sheets, strips and plates — JSA (2014)
- JIS H 4160 — Aluminium and aluminium alloy foils — JSA (2020)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys (1100 data) — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (aluminium) — ASM International (2005)
- Aluminum Association Teal Sheets — International Alloy Designations — 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.