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Aluminum 5025 · temper

Aluminum 5025-H32

Properties of the H32 condition, compared with the other 5025 tempers.

The default stocked sheet/coil temper: stabilised against age-softening, good balance of strength, bending and weldability.

What is 5025-H32?

5025-H32 is 5025 in the H32 temper — the default stocked sheet/coil temper: stabilised against age-softening, good balance of strength, bending and weldability. 5025-H32 has a yield strength of 155 MPa (22.5 ksi) and a tensile strength of 195 MPa (28.3 ksi) — weaker than 63% of aluminum grades. Elongation at break is 10% and the elastic modulus is 69.5 GPa (10.1 Msi). 5025-H32 has a density of 2.69 g/cm³ (0.0972 lb/in³), lighter than 67% of aluminum grades. It melts at 620°C (1,148 °F).

Advantages

  • High electrical conductivity — 49 % IACS, better than 89% of aluminum grades
  • Conducts heat well — 185 W/m·K (106.9 BTU/hr·ft·°F), better than 87% 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
  • Forms and bends easily — 72/100, better than 85% of aluminum grades

Limitations

  • Difficult to machine — 38/100, worse than 83% of aluminum grades
  • Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades

5025-H32 properties

Typical room-temperature values for 5025-H32 — 12 properties are specific to this condition; the rest are grade-level values shared by every 5025 temper. Each bar shows where the value sits among the aluminum grades in FabDigit's library — further right is higher.

Physical3

5025-H32 has a density of 2.69 g/cm³ (0.0972 lb/in³), lighter than 67% of aluminum grades. It melts at 620°C (1,148 °F).

Density2.69 g/cm³0.1 lb/in³
Melting Point (Solidus)620°C1,148 °F
Liquidus Temperature652°C1,206 °F

Mechanical10

5025-H32 has a yield strength of 155 MPa (22.5 ksi) and a tensile strength of 195 MPa (28.3 ksi) — weaker than 63% of aluminum grades. Elongation at break is 10% and the elastic modulus is 69.5 GPa (10.1 Msi).

Elastic (Young's) Modulus69.5 GPa10.1 Msi
Shear Modulus26 GPa3.8 Msi
Bulk Modulus69 GPa10 Msi
Poisson's Ratio0.33
Tensile Strength (Ultimate)195 MPa28.3 ksi
Yield Strength (0.2% offset)155 MPa22.5 ksi
Elongation at Break10%
Shear Strength125 MPa18.1 ksi
Fatigue Strength (Endurance Limit)105 MPa15.2 ksi
Hardness, Brinell55 HB

Thermal6

5025-H32 is rated for continuous service to 120°C (248 °F). It conducts heat at 185 W/m·K (106.9 BTU/hr·ft·°F), better than 87% of aluminum grades. Thermal expansion is 23.8 µm/m·K (13.2 µin/in·°F).

Thermal Conductivity185 W/m·K107 BTU/hr·ft·°F
Specific Heat Capacity900 J/kg·K0.21 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)23.8 µm/m·K13.2 µin/in·°F
Latent Heat of Fusion395 J/g170 BTU/lb
Max Service Temperature (continuous)120°C248 °F
Min Service Temperature-196°C-321 °F

Electrical3

5025-H32 conducts electricity at 49 % IACS, better than 89% of aluminum grades.

Electrical Conductivity49 % IACS
Electrical Resistivity3.5×10⁻⁸ Ω·m1.38 µΩ·in
Magnetic Responsenon-magnetic

Chemical & Environmental3

Corrosion resistance is very good (72/100), better than 83% of aluminum grades.

Galvanic Potential (seawater, vs SCE)-0.85 V
Corrosion ResistanceVery good72/100
Chemical Resistance SummaryVery good in neutral water, seawater spray and rural/marine atmospheres thanks to the passive oxide; resists most neutral organics and dry gases. Attacked by strong acids and by alkalis (pH >9), by mercury/heavy-metal salts, and susceptible to sensitisation-related intergranular attack only at Mg contents above ~3 %, so this low-Mg grade is essentially immune.

Sustainability4

Producing a kilogram of 5025-H32 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 35%.

Embodied Energy (primary production)200 MJ/kg85,985 BTU/lb
Embodied Carbon (primary production)12.5 kg CO₂/kg
Embodied Water1,200 L/kg144 gal/lb
Typical Recycled Content35%

Manufacturability7

5025-H32's machinability is fair (38/100, worse than 83% of aluminum grades); weldability excellent (88/100); formability very good (72/100).

MachinabilityFair38/100
Machinability Rating (AISI 1212 = 100 %)30%
WeldabilityExcellent88/100
Formability (cold)Very good72/100
Brazeability / SolderabilityPoor30/100
PolishabilityVery good70/100
Anodizing Responsegood — clear and colour anodising both work well; Mg gives a bright, uniform coating with slightly grey cast on thick hard-coat

Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.

Other 5025 tempers and conditions

5025 is also supplied in 12 other conditions. The full side-by-side table is on the 5025 overview.

Working with 5025-H32

Is 5025 easy to machine?

Soft and gummy — use polished high-rake carbide, high surface speed, generous flood or MQL lubrication and chip-breaking geometry to avoid built-up edge.

Can 5025 be welded?

Readily GTAW/GMAW welded with 5356 (or 5183/5556 for higher strength) filler; the weld reverts to near-O properties, so design joints on annealed strength.

Can 5025 be formed, bent or molded?

Excellent cold formability in O/H22/H32; allow for springback in H3x tempers and inter-anneal at 340–380 °C for severe multi-stage draws.

What surface finishes work on 5025?

Anodises bright and uniformly, takes conversion coating and paint well; poor for brazing and only fair for soldering because of the magnesium oxide film.

5025 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.

ElementSpec limit (wt %)Nominal
Siimpurity limit; verify against current AA Teal Sheet registration≤ 0.250.1
Feimpurity limit≤ 0.40.2
Cu≤ 0.10.03
Mngrain-structure control0.1 – 0.50.25
Mgprincipal alloying element; below the ~3 % sensitisation threshold0.8 – 1.51.1
Cr≤ 0.1
Zn≤ 0.25
Tigrain refiner≤ 0.10.02
Others (each)total others 0.15 max≤ 0.05
Albalance

5025-H32 — frequently asked

What is 5025-H32 used for?

5025-H32 is typically used for industrial sheet panels, rail car interior liners, formed enclosures and cabinet panels, welded sheet-metal fabrications, anodized trim and decorative sheet and panels for marine and outdoor exposure. In short: specialty industrial alloy.

What is the yield strength of 5025-H32?

5025-H32 has a typical yield strength of 155 MPa (22.5 ksi) and a tensile strength of 195 MPa (28.3 ksi) — weaker than 63% of aluminum grades. Strength varies by condition: see the 13 listed tempers.

Is 5025-H32 easy to machine?

Not especially — machinability is rated fair (38/100, worse than 83% of aluminum grades). Soft and gummy — use polished high-rake carbide, high surface speed, generous flood or MQL lubrication and chip-breaking geometry to avoid built-up edge.

Can 5025-H32 be welded?

Yes — weldability is rated excellent (88/100). Readily GTAW/GMAW welded with 5356 (or 5183/5556 for higher strength) filler; the weld reverts to near-O properties, so design joints on annealed strength.

What surface finishes work on 5025-H32?

Anodises bright and uniformly, takes conversion coating and paint well; poor for brazing and only fair for soldering because of the magnesium oxide film.

Can 5025-H32 be formed, bent or molded?

Excellent cold formability in O/H22/H32; allow for springback in H3x tempers and inter-anneal at 340–380 °C for severe multi-stage draws.

What is the maximum service temperature of 5025-H32?

5025-H32 is rated for continuous use to about 120°C (248 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.

Can FabDigit make parts in 5025-H32?

Yes — 5025-H32 is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.

Sources

  1. International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets)The Aluminum Association (2018)
  2. EN 573-3 Aluminium and aluminium alloys — Chemical composition and form of wrought productsCEN (2019)
  3. EN 485-2 Aluminium and aluminium alloys — Sheet, strip and plate: mechanical propertiesCEN (2016)
  4. ASTM B209 / B209M Standard Specification for Aluminum and Aluminum-Alloy Sheet and PlateASTM International (2021)
  5. ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose MaterialsASM International (1990)
  6. ASM Handbook Vol. 13B — Corrosion: Materials (aluminium alloys)ASM International (2005)

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.