Aluminum 5254
AA 5254 · UNS A95254
5254 (A95254) is a high-purity, low-copper Al-Mg alloy derived from 5154 and developed for hydrogen peroxide storage and handling, where trace metal contamination must be minimised; it is non-heat-treatable and supplied in O, H112 and cold-worked H1x/H2x/H3x tempers.
Reference datasheet — 5254 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 H32 condition
5254 tempers and conditions
5254 is supplied in 14 conditions, soft to hard. H32 is the default FabDigit quotes; the values on this page are for it.
Compare all 14 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for deep drawing, spinning and tank heads, and for maximum resistance to sensitisation-related SCC. | 115 | 240 | 27 | 58 HB | 33 % IACS |
Strain hardened from hot working only | Standard temper for hot-rolled thick plate used in welded peroxide tanks and pressure vessels. | 115 | 240 | 25 | 63 HB | 33 % IACS |
Strain hardened and partially annealed, quarter hard | Over-worked then back-annealed to 1/4 hard; better ductility than H12 at similar strength. | 200 | 265 | 15 | 66 HB | 32 % IACS |
H32Default Strain hardened and stabilized, quarter hard | The standard stocked sheet/plate temper: good strength, still formable and weldable, with a stabilising anneal that locks in properties for Mg-bearing alloys. | 205 | 270 | 15 | 67 HB | 32 % IACS |
Strain hardened, quarter hard | Light cold work when a little extra strength is wanted but good bending is still needed; for 5254 usually superseded by the stabilised H32. | 210 | 270 | 13 | 67 HB | 32 % IACS |
Strain hardened and partially annealed, half hard | Half-hard with retained bendability — a common choice for formed vessel components. | 220 | 285 | 12 | 72 HB | 32 % IACS |
Strain hardened and stabilized, half hard | Half-hard stabilised sheet where higher yield strength is needed and bend radii can be generous. | 230 | 290 | 13 | 73 HB | 32 % IACS |
Strain hardened, half hard | Mid-hard cold-rolled sheet for moderately formed, higher-strength parts. | 240 | 290 | 10 | 73 HB | 32 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter hard with slightly better formability than H16. | 245 | 305 | 10 | 77 HB | 32 % IACS |
Strain hardened and stabilized, three-quarter hard | Three-quarter hard stabilised sheet for strength-driven flat components. | 250 | 310 | 12 | 78 HB | 32 % IACS |
Strain hardened, three-quarter hard | High-strength cold-rolled sheet for flat or lightly formed panels. | 260 | 310 | 8 | 78 HB | 32 % IACS |
Strain hardened and partially annealed, full hard | Full-hard partially annealed sheet; highest strength available in thin gauge. | 265 | 325 | 7 | 80 HB | 32 % IACS |
Strain hardened and stabilized, full hard | Highest-strength stabilised temper; use only where forming and welding are minimal. | 270 | 330 | 10 | 80 HB | 32 % IACS |
Strain hardened, full hard | Maximum cold-worked strength, minimum ductility; flat product only, essentially no bending. | 285 | 330 | 6 | 82 HB | 32 % IACS |
What is 5254?
5254 (A95254) is a high-purity, low-copper Al-Mg alloy derived from 5154 and developed for hydrogen peroxide storage and handling, where trace metal contamination must be minimised; it is non-heat-treatable and supplied in O, H112 and cold-worked H1x/H2x/H3x tempers. Typical forms are plate, sheet and pipe for tanks and purity-critical piping, with 205 MPa yield, 270 MPa tensile, 15% elongation, 67 HB and an 80 corrosion-resistance rating. Service should stay below 65 °C to avoid β-phase sensitisation, machinability is moderate (45) and availability is limited compared with 5154 or 5083. 5254 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 593°C (1,099 °F). 5254 has a yield strength of 205 MPa (29.7 ksi) and a tensile strength of 270 MPa (39.2 ksi) — stronger than 54% of aluminum grades. Elongation at break is 15% and the elastic modulus is 70.3 GPa (10.2 Msi).
What is 5254 used for?
- hydrogen peroxide tanks
- chemical storage vessels
- purity-critical piping
Advantages
- Good corrosion resistance — 80/100, better than 97% of aluminum grades
- Polishes to a fine finish — 70/100, better than 87% of aluminum grades
- Readily welded — 88/100, better than 85% of aluminum grades
- Ductile — tolerates forming and impact — 15%, better than 82% of aluminum grades
- Forms and bends easily — 60/100, better than 77% of aluminum grades
Limitations
- Limited service temperature — 65°C (149 °F), worse than 97% of aluminum grades
5254 properties
Typical room-temperature values for 5254-H32; bars are the position among aluminum grades.
Physical3
5254 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 593°C (1,099 °F).
Mechanical11
5254 has a yield strength of 205 MPa (29.7 ksi) and a tensile strength of 270 MPa (39.2 ksi) — stronger than 54% of aluminum grades. Elongation at break is 15% and the elastic modulus is 70.3 GPa (10.2 Msi).
Thermal6
5254 is rated for continuous service to 65°C (149 °F). It conducts heat at 126 W/m·K (72.8 BTU/hr·ft·°F), worse than 70% of aluminum grades. Thermal expansion is 23.9 µm/m·K (13.3 µin/in·°F).
Electrical3
5254 conducts electricity at 32 % IACS, worse than 63% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 97% of aluminum grades.
Sustainability4
Producing a kilogram of 5254 takes about 200 MJ of energy and emits 12 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 20%.
Manufacturability8
5254's machinability is fair (45/100, worse than 72% of aluminum grades); weldability excellent (88/100); formability good (60/100).
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. 5254 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 5254
Is 5254 easy to machine?
Gummy like all soft 5000 series — use sharp polished high-rake carbide, high surface speed, generous non-chlorinated coolant to avoid built-up edge; keep tooling free of iron/copper contamination for peroxide service.
Can 5254 be welded?
Readily GTAW/GMAW welded with 5356 or 5654 filler (5654 preferred for peroxide purity); as-welded joint strength approaches the O-temper level, so design to annealed properties.
Can 5254 be formed, bent or molded?
Excellent cold formability in O/H32; allow generous bend radii in H34 and above and avoid heating above ~65 °C in service after forming to prevent β-phase sensitisation.
5254 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 combined 0.45 max | ≤ 0.45 | |
| FeSi + Fe combined 0.45 max | ≤ 0.45 | |
| Cuheld low to avoid catalysing H2O2 decomposition | ≤ 0.05 | |
| Mnkey difference vs 5154 | ≤ 0.01 | |
| Mg | 3.1 – 3.9 | 3.5 |
| Cr | 0.15 – 0.35 | 0.25 |
| Zn | ≤ 0.2 | |
| Ti | ≤ 0.05 | |
| Others (each) | ≤ 0.05 | |
| Others (total) | ≤ 0.15 | |
| Al | balance |
What surface finishes work on 5254?
Anodises clear or hard with good uniformity; chemical cleaning and passivation of the surface is normally required before hydrogen-peroxide service to remove embedded iron and machining debris.
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 5254 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A95254
How much does 5254 cost?
5254 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.
5254 — frequently asked
What is 5254 used for?
5254 is typically used for hydrogen peroxide tanks, chemical storage vessels and purity-critical piping. In short: peroxide-service Al-Mg alloy; high-purity, low-copper 5154; 80-rated corrosion resistance.
What is the yield strength of 5254?
5254 has a typical yield strength of 205 MPa (29.7 ksi) and a tensile strength of 270 MPa (39.2 ksi) — stronger than 54% of aluminum grades. Strength varies by condition: see the 14 listed tempers.
Is 5254 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% of aluminum grades). Gummy like all soft 5000 series — use sharp polished high-rake carbide, high surface speed, generous non-chlorinated coolant to avoid built-up edge; keep tooling free of iron/copper contamination for peroxide service.
Can 5254 be welded?
Yes — weldability is rated excellent (88/100). Readily GTAW/GMAW welded with 5356 or 5654 filler (5654 preferred for peroxide purity); as-welded joint strength approaches the O-temper level, so design to annealed properties.
What surface finishes work on 5254?
Anodises clear or hard with good uniformity; chemical cleaning and passivation of the surface is normally required before hydrogen-peroxide service to remove embedded iron and machining debris.
Can 5254 be formed, bent or molded?
Excellent cold formability in O/H32; allow generous bend radii in H34 and above and avoid heating above ~65 °C in service after forming to prevent β-phase sensitisation.
What is the maximum service temperature of 5254?
5254 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 5254-H32 and 5254-O?
H32 is the default condition — the standard stocked sheet/plate temper: good strength, still formable and weldable, with a stabilising anneal that locks in properties for Mg-bearing alloys. O: pick for deep drawing, spinning and tank heads, and for maximum resistance to sensitisation-related SCC. Yield strength is 205 MPa in H32 versus 115 MPa in O.
How much does 5254 cost?
5254 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 — Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate — ASTM International (2021)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- Aluminum Standards and Data — The Aluminum Association (2017)
- MMPDS / typical wrought aluminium physical property tables — Battelle (2023)
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.