Aluminum 5083-H32
Temper
AA 5083 · UNS A95083 · EN AlMg4.5Mn, AlMg4.5Mn0.7 · JIS A5083, A5083P · GB 5A05, LF4
H32 = strain hardened and stabilized, quarter hard
Sheet/coil temper roughly interchangeable with H321 for non-immersion structural work such as trailers, tanks and bodywork.
Values for the H32 condition
Other 5083 tempers and conditions
5083 is listed in 17 conditions; see the grade overview at 5083.
Compare all 17 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for maximum formability — deep drawing, tight bends, spinning — or where post-form welding will anneal the part anyway. | 145 | 290 | 23 | 65 HB | 29 % IACS |
As fabricated | As-fabricated hot-worked 5083 with no guaranteed mechanical limits; properties near annealed level and dependent on the forming route. | 145 | 290 | 18 | 72 HB | 29 % IACS |
Slightly strain hardened | Standard temper for 5083 extrusions and lightly worked sheet where near-annealed ductility is wanted with a small strength bonus. | 165 | 300 | 18 | 70 HB | 29 % IACS |
Strain hardened from hot working only | Choose for thick hot-rolled plate, forged stock and heavy extrusions where properties come from hot working rather than controlled cold work. | 165 | 300 | 16 | 72 HB | 29 % IACS |
Strain hardened and partially annealed, quarter hard | Over-worked then back-annealed to quarter-hard; quarter-hard strength with better ductility and more stable structure than H12. | 195 | 310 | 14 | 82 HB | 29 % IACS |
Strain hardened, quarter hard | Strain hardened only to quarter-hard; higher yield than O but unstabilized, so long-term exposure above ~65 °C risks sensitization and stress-corrosion cracking. | 200 | 315 | 12 | 85 HB | 29 % IACS |
H32This page Strain hardened and stabilized, quarter hard | Sheet/coil temper roughly interchangeable with H321 for non-immersion structural work such as trailers, tanks and bodywork. | 225 | 315 | 15 | 85 HB | 29 % IACS |
Strain hardened, corrosion-resistant marine temper | Default marine/LNG plate temper: qualified to ASTM B928 exfoliation (ASTM G66) and intergranular (G67) tests for continuous saltwater immersion. | 228 | 317 | 16 | 85 HB | 29 % IACS |
Strain hardened and stabilized, marine temper | Mechanically equivalent to H116 but produced by a stabilizing thermal treatment; specified by many shipyards and pressure-vessel codes (ASME). | 228 | 317 | 16 | 85 HB | 29 % IACS |
Strain hardened and partially annealed, half hard | Half-hard sheet produced by over-rolling and back-annealing; good balance of strength and bendability for formed marine and vehicle panels. | 250 | 337 | 10 | 88 HB | 29 % IACS |
Strain hardened, stabilized, stress-corrosion resistant | Sheet temper for formed parts needing higher strength than H321 with SCC-resistant processing (tanks, trailer panels). | 250 | 330 | 12 | 90 HB | 29 % IACS |
Strain hardened, half hard | Half-hard cold-rolled 5083 sheet: substantially higher yield strength with reduced ductility; unstabilized so not recommended for hot or long-term marine service. | 255 | 340 | 9 | 90 HB | 29 % IACS |
Strain hardened and stabilized, half hard | Half-hard sheet given a low-temperature stabilizing treatment; high yield strength with the sensitization resistance needed for high-Mg 5083. | 275 | 345 | 9 | 90 HB | 29 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter-hard back-annealed sheet: near-maximum cold-worked strength for 5083 with slightly better ductility and stability than H16. | 285 | 358 | 8 | 93 HB | 29 % IACS |
Strain hardened, three-quarter hard | Three-quarter-hard cold-rolled 5083 with high strength and limited bend ductility; unstabilized high-Mg temper reserved for cold, dry-service applications. | 290 | 360 | 7 | 95 HB | 29 % IACS |
Strain hardened, stabilized, stress-corrosion resistant | Highest-strength standard 5083 sheet temper; used for hard-worked tank and body panels where bend radii can stay generous. | 300 | 360 | 10 | 100 HB | 29 % IACS |
Strain hardened and stabilized, three-quarter hard | Three-quarter-hard stabilized 5083 sheet: highest practical cold-worked strength while keeping the corrosion stability of the H3x series. | 305 | 365 | 7 | 96 HB | 29 % IACS |
What is 5083-H32?
5083-H32 is 5083 in the H32 temper — sheet/coil temper roughly interchangeable with H321 for non-immersion structural work such as trailers, tanks and bodywork. 5083-H32 has a yield strength of 225 MPa (32.6 ksi) and a tensile strength of 315 MPa (45.7 ksi) — stronger than 59% of aluminum grades. Elongation at break is 15% and the elastic modulus is 71 GPa (10.3 Msi). 5083-H32 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).
Advantages
- Good corrosion resistance — 80/100, better than 97% of aluminum grades
- Tough — resists crack growth — 34 MPa·√m (30.9 ksi·√in), better than 90% of aluminum grades
- Readily welded — 90/100, better than 90% of aluminum grades
- Ductile — tolerates forming and impact — 15%, better than 82% 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
5083-H32 properties
Typical room-temperature values for 5083-H32; 22 are specific to this condition. Other listed values are 5083 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
5083-H32 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
5083-H32 has a yield strength of 225 MPa (32.6 ksi) and a tensile strength of 315 MPa (45.7 ksi) — stronger than 59% of aluminum grades. Elongation at break is 15% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
5083-H32 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 23.8 µm/m·K (13.2 µin/in·°F).
Electrical3
5083-H32 conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 97% of aluminum grades.
Sustainability4
Producing a kilogram of 5083-H32 takes about 175 MJ of energy and emits 11.5 kg of CO₂ — less than 92% of aluminum grades. Typical recycled content is 30%.
Manufacturability8
5083-H32's machinability is fair (50/100, worse than 65% of aluminum grades); weldability excellent (90/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5083-H32
Is 5083 easy to machine?
Cuts easily but gummy — use sharp polished high-rake carbide, high surface speed, generous flood coolant or lubricant to avoid built-up edge; harder H32x/H34x tempers give cleaner chips than O.
Can 5083 be welded?
Excellent for GMAW/GTAW and friction stir with 5183 (highest strength) or 5356 filler; never use 4043 or 4000-series fillers (brittle Mg₂Si), keep interpass temperature low and avoid prolonged heating above 65 °C.
Can 5083 be formed, bent or molded?
Form in O or H111 for tight radii; H116/H321 plate bends well at generous radii but shows springback and Lüders/orange-peel markings — hot forming 200–250 °C is possible but re-sensitizes the alloy.
What surface finishes work on 5083?
Takes clear and hard anodizing well and paints/powder-coats readily after chromate-free conversion coating; leave mill or brushed finish for marine work, and do not plate or braze.
5083 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 | ≤ 0.4 | 0.25 |
| Cu | ≤ 0.1 | 0.03 |
| Mngrain-structure control | 0.4 – 1 | 0.7 |
| Mgprimary strengthening element | 4 – 4.9 | 4.45 |
| Cr | 0.05 – 0.25 | 0.12 |
| Zn | ≤ 0.25 | 0.05 |
| Ti | ≤ 0.15 | 0.03 |
| Others (each)0.15 % total | ≤ 0.05 | — |
| Alremainder, nominally ~94 % | balance | — |
5083-H32 — frequently asked
What is 5083-H32 used for?
5083-H32 is typically used for ship hulls and superstructures, LNG and cryogenic storage tanks, welded pressure vessels, tank trailers and road tankers, armour-grade plate and marine deck fittings and hardware. In short: tough marine alloy; impact resistant.
What is the yield strength of 5083-H32?
5083-H32 has a typical yield strength of 225 MPa (32.6 ksi) and a tensile strength of 315 MPa (45.7 ksi) — stronger than 59% of aluminum grades. Strength varies by condition: see the 17 listed tempers.
Is 5083-H32 easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 65% of aluminum grades). Cuts easily but gummy — use sharp polished high-rake carbide, high surface speed, generous flood coolant or lubricant to avoid built-up edge; harder H32x/H34x tempers give cleaner chips than O.
Can 5083-H32 be welded?
Yes — weldability is rated excellent (90/100). Excellent for GMAW/GTAW and friction stir with 5183 (highest strength) or 5356 filler; never use 4043 or 4000-series fillers (brittle Mg₂Si), keep interpass temperature low and avoid prolonged heating above 65 °C.
What surface finishes work on 5083-H32?
Takes clear and hard anodizing well and paints/powder-coats readily after chromate-free conversion coating; leave mill or brushed finish for marine work, and do not plate or braze.
Can 5083-H32 be formed, bent or molded?
Form in O or H111 for tight radii; H116/H321 plate bends well at generous radii but shows springback and Lüders/orange-peel markings — hot forming 200–250 °C is possible but re-sensitizes the alloy.
What is the maximum service temperature of 5083-H32?
5083-H32 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.
Can FabDigit make parts in 5083-H32?
Yes — 5083-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
- ASTM B209 — Aluminum and Aluminum-Alloy Sheet and Plate — ASTM International (2021)
- ASTM B928 — High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service — ASTM International (2019)
- EN 485-2 / EN 573-3 (EN AW-5083, AlMg4.5Mn0.7) — CEN (2018)
- International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol. 2 — Properties of Nonferrous Alloys — ASM International (1990)
- MMPDS-16 (Metallic Materials Properties Development and Standardization) — Battelle/FAA (2021)
- Marine plate 5083 H116/H321 datasheets — Constellium / Alcoa (2023)
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.