Aluminum 3004 · supply condition
Aluminum 3004-H26
Properties of the H26 condition, compared with the other 3004 tempers.
Three-quarter-hard partially annealed 3004 sheet/strip with high strength and limited residual formability.
What is 3004-H26?
3004-H26 is 3004 supplied in the H26 condition — three-quarter-hard partially annealed 3004 sheet/strip with high strength and limited residual formability. 3004-H26 has a yield strength of 225 MPa (32.6 ksi) and a tensile strength of 260 MPa (37.7 ksi) — stronger than 59% of aluminum grades. Elongation at break is 6% and the elastic modulus is 69 GPa (10 Msi). 3004-H26 has a density of 2.72 g/cm³ (0.0983 lb/in³), heavier than 57% of aluminum grades. It melts at 629°C (1,164 °F).
Advantages
- High electrical conductivity — 42 % IACS, better than 81% of aluminum grades
- Good corrosion resistance — 70/100, better than 79% of aluminum grades
- Conducts heat well — 163 W/m·K (94.2 BTU/hr·ft·°F), better than 77% of aluminum grades
3004-H26 properties
Typical room-temperature values for 3004-H26 — 36 properties are specific to this condition; the rest are grade-level values shared by every 3004 temper. Each bar shows where the value sits among the aluminum grades in FabDigit's library — further right is higher.
Physical3
3004-H26 has a density of 2.72 g/cm³ (0.0983 lb/in³), heavier than 57% of aluminum grades. It melts at 629°C (1,164 °F).
Mechanical11
3004-H26 has a yield strength of 225 MPa (32.6 ksi) and a tensile strength of 260 MPa (37.7 ksi) — stronger than 59% of aluminum grades. Elongation at break is 6% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
3004-H26 is rated for continuous service to 130°C (266 °F). It conducts heat at 163 W/m·K (94.2 BTU/hr·ft·°F), better than 77% of aluminum grades. Thermal expansion is 23.8 µm/m·K (13.2 µin/in·°F).
Electrical3
3004-H26 conducts electricity at 42 % IACS, better than 81% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), better than 79% of aluminum grades.
Sustainability4
Producing a kilogram of 3004-H26 takes about 155 MJ of energy and emits 12 kg of CO₂ — less than 94% of aluminum grades. Typical recycled content is 45%.
Manufacturability7
3004-H26's machinability is fair (52/100, worse than 62% of aluminum grades); weldability very good (75/100); formability fair (45/100).
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other 3004 tempers and conditions
3004 is also supplied in 14 other conditions. The full side-by-side table is on the 3004 overview.
- H18Full-hard strip for maximum strength/springiness in flat or simply bent parts.270 MPa yield · 78 HB
- H28Full-hard partially annealed 3004 strip at maximum strain-hardened strength with minimal ductility, used for can bodies and shutter/fin stock.250 MPa yield · 77 HB
- H38Maximum-strength stabilized 3004 sheet/strip for flat panels, closures and shells where only minimal forming follows.250 MPa yield · 77 HB
- H36Higher-strength stabilized sheet for lightly formed pressure/structural panels and closure stock.230 MPa yield · 70 HB
- H26Three-quarter-hard partially annealed 3004 sheet/strip with high strength and limited residual formability.225 MPa yield · 70 HB
- H14General-purpose half-hard cold-rolled sheet/strip where higher yield than H34 is wanted and bend radii can stay generous.215 MPa yield · 66 HB
- H34The most commonly stocked 3004 temper: half-hard stabilized sheet for pressure-tight drawn parts, drums, panels and utensils that still need bending and stretch forming.200 MPa yield · 63 HB
- H24Half-hard partially annealed 3004 sheet — the common general-purpose strength/formability compromise for roofing, siding and can ends.200 MPa yield · 63 HB
- H22Cold-rolled then partially annealed 3004 sheet at quarter-hard strength, mechanically close to H32 but with better ductility retention.170 MPa yield · 52 HB
- H32Stabilized quarter-hard sheet; best balance of formability and strength for roofing, siding and drawn housings.170 MPa yield · 52 HB
- H112Hot-worked plate/extruded 3004 supplied as-fabricated with guaranteed minimum strength, only slightly above annealed level.85 MPa yield · 46 HB
- OPick for maximum ductility: severe deep drawing, spinning, roll forming and multi-stage stamping.70 MPa yield · 45 HB
Working with 3004-H26
Is 3004 easy to machine?
Gummy and prone to built-up edge in O/H32 tempers — use sharp polished high-rake carbide, high speed, generous lubrication; harder H36/H38/H19 tempers cut and part off much more cleanly.
Can 3004 be welded?
Readily GTAW/GMAW/resistance welded with 5356 or 4043 filler (5356 for higher joint strength); the HAZ reverts toward O temper so design joints for annealed properties.
Can 3004 be formed, bent or molded?
Excellent cold formability — O and H32 take deep draws and spinning; stabilized H3x tempers resist age-softening and Lüders marking, and H19 is engineered specifically for draw-and-iron canmaking.
What surface finishes work on 3004?
Takes clear/hard anodising, chromate or chrome-free conversion coatings, coil-coated paint and lithographic lacquers well; bright decorative anodising is only fair because Mn gives a grey cast, so paint or coil coating is preferred for cosmetic panels.
3004 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 | ≤ 0.3 | 0.15 |
| Fe | ≤ 0.7 | 0.4 |
| Cu | ≤ 0.25 | 0.05 |
| Mn | 1 – 1.5 | 1.2 |
| Mg | 0.8 – 1.3 | 1 |
| Zn | ≤ 0.25 | 0.05 |
| Others (each)each | ≤ 0.05 | — |
| Others (total)total | ≤ 0.15 | — |
| Al | ≥ 96.3 (balance) | — |
3004-H26 — frequently asked
What is 3004-H26 used for?
3004-H26 is typically used for beverage can bodies, roofing and siding sheet, chemical drums, lighting reflectors, cooking utensils and deep-drawn and spun housings. In short: can body alloy; higher strength.
What is the yield strength of 3004-H26?
3004-H26 has a typical yield strength of 225 MPa (32.6 ksi) and a tensile strength of 260 MPa (37.7 ksi) — stronger than 59% of aluminum grades. Strength varies by condition: see the 15 listed tempers.
Is 3004-H26 easy to machine?
Reasonably — machinability is rated fair (52/100, worse than 62% of aluminum grades). Gummy and prone to built-up edge in O/H32 tempers — use sharp polished high-rake carbide, high speed, generous lubrication; harder H36/H38/H19 tempers cut and part off much more cleanly.
Can 3004-H26 be welded?
Yes — weldability is rated very good (75/100). Readily GTAW/GMAW/resistance welded with 5356 or 4043 filler (5356 for higher joint strength); the HAZ reverts toward O temper so design joints for annealed properties.
What surface finishes work on 3004-H26?
Takes clear/hard anodising, chromate or chrome-free conversion coatings, coil-coated paint and lithographic lacquers well; bright decorative anodising is only fair because Mn gives a grey cast, so paint or coil coating is preferred for cosmetic panels.
Can 3004-H26 be formed, bent or molded?
Excellent cold formability — O and H32 take deep draws and spinning; stabilized H3x tempers resist age-softening and Lüders marking, and H19 is engineered specifically for draw-and-iron canmaking.
What is the maximum service temperature of 3004-H26?
3004-H26 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 3004-H26?
Yes — 3004-H26 is available for sheet metal with instant online pricing. 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)
- ASTM B209 / B209M — Aluminum and Aluminum-Alloy Sheet and Plate — ASTM International (2021)
- EN 485-2 — Aluminium and aluminium alloys: sheet, strip and plate, mechanical properties — CEN (2016)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
- Can body stock / 3004 sheet & coil datasheets — Constellium / Novelis (2022)
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.