Aluminum 8014-H22
Temper
AA 8014 · UNS A98014 · EN AlFeSiCu
H22 = strain hardened and partially annealed, quarter hard
Soft, high-ductility back-annealed strip for formed fins and laminating foil.
Values for the H22 condition
Other 8014 tempers and conditions
8014 is listed in 11 conditions; see the grade overview at 8014.
Compare all 11 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Maximum formability and highest thermal conductivity — pick for deep-drawn/embossed foil, container foil and laminate stock. | 40 | 95 | 25 | 23 HB | 55 % IACS |
Slightly strain hardened | Near-O softness with slightly higher strength from levelling/coiling; used where O flatness is hard to hold. | 50 | 100 | 22 | 26 HB | 54 % IACS |
H22This page Strain hardened and partially annealed, quarter hard | Soft, high-ductility back-annealed strip for formed fins and laminating foil. | 88 | 115 | 14 | 31 HB | 53.5 % IACS |
Strain hardened, quarter hard | Light cold work for mild stiffening while keeping high bend ductility. | 90 | 112 | 12 | 30 HB | 53 % IACS |
Strain hardened, half hard | Common half-hard strip temper balancing stiffness and roll-forming ability. | 110 | 128 | 8 | 38 HB | 52.5 % IACS |
H24Default Strain hardened and partially annealed, half hard | The standard heat-exchanger fin-stock condition: enough strength for fin-mill corrugating with retained ductility and good post-braze sag resistance. | 115 | 140 | 6 | 42 HB | 52 % IACS |
Strain hardened, three-quarter hard | Higher strength strip for stiffer fins and semi-rigid containers; bending radii must be generous. | 132 | 148 | 5 | 45 HB | 52 % IACS |
Strain hardened and partially annealed, three-quarter hard | Stronger fin stock for thin-gauge down-gauging where fin collapse resistance matters more than bend ductility. | 135 | 155 | 4 | 47 HB | 52.5 % IACS |
Strain hardened, full hard | Full-hard rolled condition for maximum as-rolled strength and flat, high-tension foil running. | 152 | 168 | 3 | 50 HB | 51.5 % IACS |
Strain hardened and partially annealed, full hard | Full-hard back-annealed strip; maximum strength with slightly better flatness/uniformity than H18. | 155 | 170 | 3 | 51 HB | 52 % IACS |
Strain hardened, extra hard | Heaviest cold reduction, used for very thin as-rolled foil where peak tensile is needed for web handling. | 170 | 185 | 2 | 55 HB | 51 % IACS |
What is 8014-H22?
8014-H22 is 8014 in the H22 temper — soft, high-ductility back-annealed strip for formed fins and laminating foil. 8014-H22 has a yield strength of 88 MPa (12.8 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 88% of aluminum grades. Elongation at break is 14% and the elastic modulus is 69 GPa (10 Msi). 8014-H22 has a density of 2.73 g/cm³ (0.0986 lb/in³), heavier than 61% of aluminum grades. It melts at 645°C (1,193 °F). H24 is the default condition FabDigit quotes; H22 is available on request or by drawing note.
Advantages
- Conducts heat well — 202 W/m·K (116.7 BTU/hr·ft·°F), better than 92% of aluminum grades
- High electrical conductivity — 53.5 % IACS, better than 92% of aluminum grades
- Forms and bends easily — 85/100, better than 91% of aluminum grades
- Ductile — tolerates forming and impact — 14%, better than 81% of aluminum grades
Limitations
- Difficult to machine — 28/100, worse than 94% of aluminum grades
- Low strength — 88 MPa (12.8 ksi), worse than 88% of aluminum grades
- Hard to polish — 45/100, worse than 76% of aluminum grades
8014-H22 properties
Typical room-temperature values for 8014-H22; 18 are specific to this condition. Other listed values are 8014 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
8014-H22 has a density of 2.73 g/cm³ (0.0986 lb/in³), heavier than 61% of aluminum grades. It melts at 645°C (1,193 °F).
Mechanical11
8014-H22 has a yield strength of 88 MPa (12.8 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 88% of aluminum grades. Elongation at break is 14% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
8014-H22 is rated for continuous service to 160°C (320 °F). It conducts heat at 202 W/m·K (116.7 BTU/hr·ft·°F), better than 92% of aluminum grades. Thermal expansion is 23.5 µm/m·K (13.1 µin/in·°F).
Electrical3
8014-H22 conducts electricity at 53.5 % IACS, better than 92% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), better than 67% of aluminum grades.
Sustainability4
Producing a kilogram of 8014-H22 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 35%.
Manufacturability7
8014-H22's machinability is poor (28/100, worse than 94% of aluminum grades); weldability very good (70/100); formability excellent (85/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 8014-H22
Is 8014 easy to machine?
Rarely machined — very soft and gummy; if slitting/blanking, use sharp PCD or polished carbide, high rake, generous lubrication and tight die clearances to avoid burrs and web tearing.
Can 8014 be welded?
Resistance and TIG/MIG welding are feasible in thicker gauges with 4043/1100 filler, but in service the alloy is normally joined by controlled-atmosphere brazing (as fin against clad tube) or by adhesive lamination.
Can 8014 be formed, bent or molded?
Excellent cold rollability down to foil gauges; O/H22 for deep forming and embossing, H24/H26 for fin-mill corrugating — avoid tight bends in H18/H19 where elongation is only 1–3 %.
What surface finishes work on 8014?
Usually supplied bare, degreased, or with hydrophilic/epoxy coil coatings; sulfuric anodizing is protective but grey and mottled owing to Fe-rich intermetallics, so chemical conversion or organic coating is preferred.
8014 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 control the intermetallic dispersion | ≤ 0.3 | 0.15 |
| Feprincipal alloying element, forms Al-Fe(-Mn,Si) particles | 1.2 – 1.6 | 1.4 |
| Cu | ≤ 0.2 | 0.05 |
| Mnraises strength and anti-sag behaviour vs 8011 | 0.2 – 0.6 | 0.35 |
| Mg | ≤ 0.1 | — |
| Zn | ≤ 0.1 | — |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
8014-H22 — frequently asked
What is 8014-H22 used for?
8014-H22 is typically used for foil stock, fin stock and closures. In short: stronger than 8011 foil; fin and foil rolling stock; not a machining alloy.
What is the yield strength of 8014-H22?
8014-H22 has a typical yield strength of 88 MPa (12.8 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 88% of aluminum grades. Strength varies by condition: see the 11 listed tempers.
Is 8014-H22 easy to machine?
Not especially — machinability is rated poor (28/100, worse than 94% of aluminum grades). Rarely machined — very soft and gummy; if slitting/blanking, use sharp PCD or polished carbide, high rake, generous lubrication and tight die clearances to avoid burrs and web tearing.
Can 8014-H22 be welded?
Yes — weldability is rated very good (70/100). Resistance and TIG/MIG welding are feasible in thicker gauges with 4043/1100 filler, but in service the alloy is normally joined by controlled-atmosphere brazing (as fin against clad tube) or by adhesive lamination.
What surface finishes work on 8014-H22?
Usually supplied bare, degreased, or with hydrophilic/epoxy coil coatings; sulfuric anodizing is protective but grey and mottled owing to Fe-rich intermetallics, so chemical conversion or organic coating is preferred.
Can 8014-H22 be formed, bent or molded?
Excellent cold rollability down to foil gauges; O/H22 for deep forming and embossing, H24/H26 for fin-mill corrugating — avoid tight bends in H18/H19 where elongation is only 1–3 %.
What is the maximum service temperature of 8014-H22?
8014-H22 is rated for continuous use to about 160°C (320 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 8014-H24 and 8014-O?
H24 is the default condition — the standard heat-exchanger fin-stock condition: enough strength for fin-mill corrugating with retained ductility and good post-braze sag resistance. O: maximum formability and highest thermal conductivity — pick for deep-drawn/embossed foil, container foil and laminate stock. Yield strength is 115 MPa in H24 versus 40 MPa in O.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- 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)
- GB/T 3198 / EN 546 Aluminium foil — SAC / CEN (2020)
- Heat-exchanger fin stock and container foil alloy datasheets (8011/8014/8079 family) — various aluminium rolling mills (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.