Aluminum 5019
AA 5019 · UNS A95019 · EN AW-5019, AW 5019
5019 (EN AW-5019, AlMg5) is a high-magnesium, non-heat-treatable wrought Al–Mg alloy with about 5 % Mg and a small Mn addition, supplied mainly as plate, sheet and extrusions in annealed or strain-hardened/stabilized (H1xx/H3xx) tempers.
5019 tempers and conditions
5019 is supplied in 16 conditions, soft to hard.
Compare all 16 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for maximum cold formability — deep drawing, severe bending, spinning — where strength is not critical. | 135 | 280 | 24 | 68 HB | 29 % IACS |
As fabricated | As-fabricated Al-5Mg product with no mechanical property limits guaranteed; strength between annealed and lightly strain-hardened tempers. | 140 | 280 | 20 | 70 HB | 29 % IACS |
Slightly strain hardened | Standard soft plate/extrusion temper for welded structures needing good bending with minimum guaranteed strength. | 145 | 290 | 21 | 72 HB | 29 % IACS |
Strain hardened from hot working only | Hot-rolled thick plate or extrusions where properties come from hot work; the usual choice for heavy welded marine sections. | 160 | 300 | 17 | 76 HB | 29 % IACS |
Strain hardened and partially annealed, quarter hard | Cold-worked then partially annealed to quarter-hard level; stabilised structure with better ductility than H12 at similar strength. | 205 | 300 | 14 | 78 HB | 29 % IACS |
Strain hardened, quarter hard | Quarter-hard cold-rolled Al-5Mg sheet: moderate strength gain over O temper with good remaining ductility. | 215 | 305 | 12 | 80 HB | 29 % IACS |
Strain hardened and stabilized, marine temper | The workhorse plate temper for welded marine, tank and offshore structures — good strength with controlled sensitization resistance. | 230 | 335 | 13 | 88 HB | 28 % IACS |
Strain hardened and stabilized, quarter hard | General-purpose sheet temper balancing moderate strength with usable bending; stabilization prevents age softening. | 235 | 330 | 12 | 87 HB | 28 % IACS |
Strain hardened, corrosion-resistant marine temper | Specify for marine hulls and seawater-immersed plate: same strength class as H321 but with mandatory ASTM G66/G67 exfoliation and sensitization acceptance. | 240 | 340 | 12 | 90 HB | 28 % IACS |
Strain hardened and partially annealed, half hard | Half-hard stabilised Al-5Mg sheet; common bending/forming temper for high-Mg architectural and marine panels. | 245 | 330 | 11 | 88 HB | 29 % IACS |
Strain hardened, half hard | Half-hard cold-worked Al-5Mg sheet offering a balance of high strength and workable ductility. | 260 | 335 | 9 | 90 HB | 29 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter-hard stabilised Al-5Mg sheet: near-H16 strength with slightly improved ductility and forming behaviour. | 280 | 355 | 8 | 95 HB | 29 % IACS |
Strain hardened and stabilized, half hard | Choose when higher strength and stiffness-per-thickness matter more than bending, e.g. panels and tank walls. | 285 | 370 | 8 | 100 HB | 28 % IACS |
Strain hardened, three-quarter hard | Three-quarter-hard Al-5Mg sheet with high strength and limited cold-forming capability. | 295 | 360 | 6 | 98 HB | 29 % IACS |
Strain hardened and stabilized, three-quarter hard | Cold worked and low-temperature stabilised to three-quarter hard; high strength with reduced age-softening and improved SCC stability for high-Mg sheet. | 300 | 365 | 6 | 100 HB | 29 % IACS |
Strain hardened and stabilized, full hard | Thin sheet/strip where maximum as-rolled strength is required and only flat or gentle forming is done. | 340 | 405 | 5 | 110 HB | 28 % IACS |
What is 5019?
5019 (EN AW-5019, AlMg5) is a high-magnesium, non-heat-treatable wrought Al–Mg alloy with about 5 % Mg and a small Mn addition, supplied mainly as plate, sheet and extrusions in annealed or strain-hardened/stabilized (H1xx/H3xx) tempers. It is chosen where 5083-class strength plus excellent seawater and weld corrosion resistance are needed — shipbuilding, tanks, offshore and pressure-vessel structures — because its as-welded strength is high and it needs no post-weld heat treatment. Limits: because Mg exceeds 3 %, continuous service above roughly 65 °C risks β-phase (Al3Mg2) grain-boundary precipitation and stress-corrosion/exfoliation sensitivity, and cold formability drops sharply in the harder tempers. 5019 has a density of 2.64 g/cm³ (0.0954 lb/in³), lighter than 94% of aluminum grades. It melts at 570°C (1,058 °F). 5019 has a yield strength of 230 MPa (33.4 ksi) and a tensile strength of 335 MPa (48.6 ksi) — stronger than 60% of aluminum grades. Elongation at break is 13% and the elastic modulus is 70 GPa (10.2 Msi).
What is 5019 used for?
- Naval armour plate
- Ship superstructures and deckhouses
- Marine and shore storage tanks
- Offshore platform structures
- Pressure-vessel shells
- Welded hull stiffeners and extrusions
- Saltwater-exposed structural weldments
Advantages
- Good corrosion resistance — 78/100, better than 94% of aluminum grades
- Tough — resists crack growth — 32 MPa·√m (29.1 ksi·√in), better than 83% of aluminum grades
- Ductile — tolerates forming and impact — 13%, better than 79% of aluminum grades
- Readily welded — 85/100, better than 79% of aluminum grades
Limitations
- Limited service temperature — 65°C (149 °F), worse than 97% of aluminum grades
- Poor heat conductor — 113 W/m·K (65.3 BTU/hr·ft·°F), worse than 86% of aluminum grades
- Low electrical conductivity — 28 % IACS, worse than 82% of aluminum grades
5019 properties
Typical room-temperature values; bars are the position among aluminum grades.
Physical3
5019 has a density of 2.64 g/cm³ (0.0954 lb/in³), lighter than 94% of aluminum grades. It melts at 570°C (1,058 °F).
Mechanical12
5019 has a yield strength of 230 MPa (33.4 ksi) and a tensile strength of 335 MPa (48.6 ksi) — stronger than 60% of aluminum grades. Elongation at break is 13% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
5019 is rated for continuous service to 65°C (149 °F). It conducts heat at 113 W/m·K (65.3 BTU/hr·ft·°F), worse than 86% of aluminum grades. Thermal expansion is 24.2 µm/m·K (13.4 µin/in·°F).
Electrical3
5019 conducts electricity at 28 % IACS, worse than 82% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 94% of aluminum grades.
Sustainability4
Producing a kilogram of 5019 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 35%.
Manufacturability8
5019's machinability is fair (45/100, worse than 72% of aluminum grades); weldability excellent (85/100); formability good (55/100).
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. 5019 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 5019
Is 5019 easy to machine?
Gummy and adhesive like all high-Mg alloys — use sharp polished high-rake carbide, high surface speed, generous lubrication and chip evacuation; hard tempers cut cleaner than O.
Can 5019 be welded?
Excellent with GMAW/GTAW using 5183 or 5356 filler; no post-weld heat treatment, but keep interpass temperature low and avoid heating above ~65 °C in service to prevent sensitization.
Can 5019 be formed, bent or molded?
Form in O/H111 for tight radii; H32 and harder tempers need generous bend radii and are prone to Lüders/orange-peel marking — warm forming 120–200 °C helps but must be brief.
Manufacturability
The process limits FabDigit applies to 5019. Every 5019 part is priced by an engineer; design inside these and the quote comes back without a redesign loop.
CNC machining
| Machinability | Better45 / 100 |
|---|---|
| ISO material group | N.1 |
| Cutting speed (rough / finish) | 350 / 420 m/min |
| Minimum wall | 0.5 mm |
| Minimum internal radius | 1 mm |
| Drill depth limit | 8× diameter |
| Best surface (machined / polished) | Ra 0.8 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Better55 / 100 |
|---|---|
| Weldability | Better85 / 100 |
| Bendable | Yes |
5019 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 | ≤ 0.4 | 0.15 |
| Fe | ≤ 0.5 | 0.25 |
| Cu | ≤ 0.1 | 0.03 |
| Mn | 0.1 – 0.6 | 0.35 |
| Mgprincipal alloying element | 4.5 – 5.6 | 5 |
| Cr | ≤ 0.2 | 0.08 |
| Zn | ≤ 0.2 | 0.05 |
| Ti | ≤ 0.2 | 0.05 |
| Others (each)0.15 total | ≤ 0.05 | |
| Al | balance |
What surface finishes work on 5019?
Anodizes bright and uniformly (clear or hard coat), takes chemical conversion coating and paint well; polishing gives a good marine trim finish, and isolate from steel/copper to avoid galvanic attack.
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).
Passivation
Conversion Coating
PVD Coating
Equivalent designations
Standards and trade names that resolve to Aluminum 5019 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A95019
- Aluminum Association
- AA5019
- EN / DIN / Werkstoff-Nr.
- AW-5019AW 50193.3555AlMg5
How much does 5019 cost?
5019 is a standard-cost aluminum ($$), cheaper than about 80% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
5019 — frequently asked
What is 5019 used for?
5019 is typically used for naval armour plate, ship superstructures and deckhouses, marine and shore storage tanks, offshore platform structures, pressure-vessel shells and welded hull stiffeners and extrusions. In short: high-Mg armour plate; saltwater grade.
What is the yield strength of 5019?
5019 has a typical yield strength of 230 MPa (33.4 ksi) and a tensile strength of 335 MPa (48.6 ksi) — stronger than 60% of aluminum grades. Strength varies by condition: see the 16 listed tempers.
Is 5019 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% of aluminum grades). Gummy and adhesive like all high-Mg alloys — use sharp polished high-rake carbide, high surface speed, generous lubrication and chip evacuation; hard tempers cut cleaner than O.
Can 5019 be welded?
Yes — weldability is rated excellent (85/100). Excellent with GMAW/GTAW using 5183 or 5356 filler; no post-weld heat treatment, but keep interpass temperature low and avoid heating above ~65 °C in service to prevent sensitization.
What surface finishes work on 5019?
Anodizes bright and uniformly (clear or hard coat), takes chemical conversion coating and paint well; polishing gives a good marine trim finish, and isolate from steel/copper to avoid galvanic attack.
Can 5019 be formed, bent or molded?
Form in O/H111 for tight radii; H32 and harder tempers need generous bend radii and are prone to Lüders/orange-peel marking — warm forming 120–200 °C helps but must be brief.
What is the maximum service temperature of 5019?
5019 is rated for continuous use to about 65°C (149 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 5019 cost?
5019 is a standard-cost aluminum ($$), cheaper than about 80% 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.
Can FabDigit make parts in 5019?
Yes — 5019 is available for CNC machining and 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
- EN 573-3 Aluminium and aluminium alloys — chemical composition of wrought products — CEN (2019)
- EN 485-2 Aluminium and aluminium alloys — sheet, strip and plate: mechanical properties — CEN (2016)
- ASTM B928 High-Magnesium Aluminum-Alloy Sheet and Plate for Marine Service — ASTM (2019)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (aluminium in marine service) — ASM International (2005)
- Marine aluminium plate (Al-Mg 5000 series) datasheets — Constellium / Aleris (2021)
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.