Aluminum 5026
AA 5026 · UNS A95026 · EN AlMg4.5MnSiFe
5026 (A95026, AlMg4.5MnSiFe) is a high-magnesium wrought Al-Mg alloy with manganese plus controlled Si and Fe for microstructure control; it is non-heat-treatable and gains strength from cold work.
Reference datasheet — 5026 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the H111 condition
5026 tempers and conditions
5026 is supplied in 15 conditions, soft to hard. H111 is the default FabDigit quotes; the values on this page are for it.
Compare all 15 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for maximum formability (deep drawing, severe bending) and best sensitisation resistance before forming and welding. | 140 | 290 | 24 | 70 HB | 29 % IACS |
H111Default Slightly strain hardened | Default stocked plate temper: near-annealed ductility with a small strength bonus, best all-round choice for welded marine and structural fabrications. | 170 | 310 | 18 | 80 HB | 29 % IACS |
Strain hardened from hot working only | Use for thick hot-rolled plate and extruded shapes where as-fabricated properties are acceptable. | 175 | 305 | 16 | 79 HB | 29 % IACS |
Strain hardened and partially annealed, quarter hard | Stabilised quarter-hard condition with better ductility and IGC resistance than H12 at similar strength. | 210 | 312 | 14 | 85 HB | 29 % IACS |
Strain hardened, quarter hard | Light cold work when a modest yield increase is needed but bending is still required. | 225 | 320 | 12 | 88 HB | 29 % IACS |
Strain hardened, corrosion-resistant marine temper | Specify for seawater-immersed hull and armour plate that must pass ASTM G66/G67 exfoliation and IGC tests. | 235 | 335 | 12 | 91 HB | 29 % IACS |
Strain hardened and stabilized, quarter hard | Low-temperature stabilised quarter-hard plate/sheet; standard marine temper with stable properties over time. | 240 | 330 | 12 | 90 HB | 29 % IACS |
Strain hardened and stabilized, marine temper | Classic marine/armour plate temper: stabilised, corrosion-qualified per ASTM B928, welds and forms well in heavy gauges. | 240 | 335 | 13 | 91 HB | 29 % IACS |
Strain hardened and partially annealed, half hard | Half-hard sheet with a back-anneal for improved bendability and exfoliation resistance versus H14. | 265 | 345 | 10 | 95 HB | 29 % IACS |
Strain hardened and stabilized, half hard | Half-hard, thermally stabilised temper — best combination of high yield strength and long-term property/corrosion stability for high-Mg sheet. | 285 | 355 | 9 | 98 HB | 29 % IACS |
Strain hardened, half hard | Choose when high as-rolled yield strength in flat sheet matters more than bend radius or weld-HAZ retention. | 290 | 350 | 8 | 100 HB | 29 % IACS |
Strain hardened and partially annealed, three-quarter hard | Higher-strength stabilised sheet for lightly formed panels needing good corrosion behaviour. | 300 | 368 | 8 | 104 HB | 29 % IACS |
Strain-hardened armour plate temper | Use for ballistic-qualified vehicle armour plate where MIL-DTL type acceptance (V50) governs rather than generic mechanicals. | 300 | 380 | 8 | 105 HB | 29 % IACS |
Strain hardened, three-quarter hard | Thin-gauge sheet where maximum cold-worked strength is required and forming is minimal. | 320 | 375 | 6 | 108 HB | 29 % IACS |
Strain hardened, full hard | Maximum strength thin sheet/strip; very limited bending and highest sensitisation susceptibility. | 350 | 400 | 4 | 115 HB | 29 % IACS |
What is 5026?
5026 (A95026, AlMg4.5MnSiFe) is a high-magnesium wrought Al-Mg alloy with manganese plus controlled Si and Fe for microstructure control; it is non-heat-treatable and gains strength from cold work. Engineers use it for high-strength welded structures and armor-grade plate and extrusions, helped by a weldability score of 88 and corrosion resistance score of 78. Default values are 170 MPa yield, 310 MPa tensile, 18% elongation, 80 HB, 117 W/m·K and 29% IACS. Continuous service is capped at 65 °C because of sensitisation risk in high-Mg alloys, and availability is limited; 5083 is the closest commercial alternative. 5026 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 574°C (1,065 °F). 5026 has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 310 MPa (45 ksi) — weaker than 56% of aluminum grades. Elongation at break is 18% and the elastic modulus is 70.5 GPa (10.2 Msi).
What is 5026 used for?
- armor components
- structural extrusions
- high-strength welded assemblies
Advantages
- Good corrosion resistance — 78/100, better than 94% of aluminum grades
- Ductile — tolerates forming and impact — 18%, better than 86% of aluminum grades
- Readily welded — 88/100, better than 85% of aluminum grades
- Tough — resists crack growth — 32 MPa·√m (29.1 ksi·√in), better than 83% of aluminum grades
- Forms and bends easily — 65/100, better than 80% of aluminum grades
Limitations
- Limited service temperature — 65°C (149 °F), worse than 97% of aluminum grades
- Poor heat conductor — 117 W/m·K (67.6 BTU/hr·ft·°F), worse than 83% of aluminum grades
- Low electrical conductivity — 29 % IACS, worse than 78% of aluminum grades
5026 properties
Typical room-temperature values for 5026-H111; bars are the position among aluminum grades.
Physical3
5026 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 574°C (1,065 °F).
Mechanical12
5026 has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 310 MPa (45 ksi) — weaker than 56% of aluminum grades. Elongation at break is 18% and the elastic modulus is 70.5 GPa (10.2 Msi).
Thermal6
5026 is rated for continuous service to 65°C (149 °F). It conducts heat at 117 W/m·K (67.6 BTU/hr·ft·°F), worse than 83% of aluminum grades. Thermal expansion is 24.2 µm/m·K (13.4 µin/in·°F).
Electrical3
5026 conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 94% of aluminum grades.
Sustainability4
Producing a kilogram of 5026 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 35%.
Manufacturability8
5026's machinability is fair (45/100, worse than 72% of aluminum grades); weldability excellent (88/100); formability good (65/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. 5026 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 5026
Is 5026 easy to machine?
Machines like other high-Mg 5000 series: gummy long chips, use sharp polished high-rake carbide, high speed with flood emulsion; H14/H34 tempers cut cleaner than O/H111.
Can 5026 be welded?
Excellent GMAW/GTAW and FSW behaviour with ER5183 or ER5356 filler; do not preheat above ~120 °C, keep interpass low, and expect HAZ properties to drop toward the O condition.
Can 5026 be formed, bent or molded?
Cold form in O/H111/H32; use generous bend radii (≥2t half-hard, ≥1t annealed) and avoid warm forming in the 60–200 °C range that promotes sensitisation.
5026 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 |
|---|---|---|
| Mgprincipal solid-solution strengthener; >3 % Mg drives sensitisation limit | 4 – 5 | 4.5 |
| Mndispersoid former, grain-structure control | 0.3 – 1 | 0.65 |
| Sideliberate addition in this grade (AlMg4.5MnSiFe designation) | 0.1 – 0.4 | 0.25 |
| Fedeliberate addition forming Al-Fe-Mn-Si constituent particles | 0.15 – 0.5 | 0.3 |
| Cr | 0.05 – 0.25 | 0.12 |
| Zrrecrystallisation inhibitor (typical of modern high-Mg plate alloys) | 0.05 – 0.2 | 0.12 |
| Cuimpurity limit | ≤ 0.2 | 0.05 |
| Znimpurity limit | ≤ 0.4 | 0.1 |
| Tigrain refiner | ≤ 0.15 | 0.03 |
| Others (each) | ≤ 0.05 | |
| Others (total) | ≤ 0.15 | |
| Albalance; exact registered limits should be confirmed against the current Aluminum Association Teal Sheet entry for 5026 | balance |
What surface finishes work on 5026?
Responds well to sulphuric clear anodising and to chromate-free conversion coating plus epoxy primer for vehicle/marine service; mechanical polishing gives a satin rather than mirror finish because of Fe/Si constituent particles.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Equivalent designations
Standards and trade names that resolve to Aluminum 5026 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A95026
- EN / DIN / Werkstoff-Nr.
- AlMg4.5MnSiFe
How much does 5026 cost?
5026 is a premium-cost aluminum ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
5026 — frequently asked
What is 5026 used for?
5026 is typically used for armor components, structural extrusions and high-strength welded assemblies. In short: high-Mg armor-grade 5000 series; weldability score 88; 65 °C service ceiling.
What is the yield strength of 5026?
5026 has a typical yield strength of 170 MPa (24.7 ksi) and a tensile strength of 310 MPa (45 ksi) — weaker than 56% of aluminum grades. Strength varies by condition: see the 15 listed tempers.
Is 5026 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% of aluminum grades). Machines like other high-Mg 5000 series: gummy long chips, use sharp polished high-rake carbide, high speed with flood emulsion; H14/H34 tempers cut cleaner than O/H111.
Can 5026 be welded?
Yes — weldability is rated excellent (88/100). Excellent GMAW/GTAW and FSW behaviour with ER5183 or ER5356 filler; do not preheat above ~120 °C, keep interpass low, and expect HAZ properties to drop toward the O condition.
What surface finishes work on 5026?
Responds well to sulphuric clear anodising and to chromate-free conversion coating plus epoxy primer for vehicle/marine service; mechanical polishing gives a satin rather than mirror finish because of Fe/Si constituent particles.
Can 5026 be formed, bent or molded?
Cold form in O/H111/H32; use generous bend radii (≥2t half-hard, ≥1t annealed) and avoid warm forming in the 60–200 °C range that promotes sensitisation.
What is the maximum service temperature of 5026?
5026 is rated for continuous use to about 65°C (149 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 5026-H111 and 5026-H18?
H111 is the default condition — default stocked plate temper: near-annealed ductility with a small strength bonus, best all-round choice for welded marine and structural fabrications. H18: maximum strength thin sheet/strip; very limited bending and highest sensitisation susceptibility. Yield strength is 170 MPa in H111 versus 350 MPa in H18.
How much does 5026 cost?
5026 is a premium-cost aluminum ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
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)
- ASTM B928/B928M — High-Magnesium Aluminum-Alloy Sheet and Plate for Marine Service — ASTM International (2019)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (Aluminum alloys) — ASM International (2005)
- High-magnesium marine and armour plate alloy datasheets (5083/5059/5026 class) — Constellium / Aleris (2020)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.