Aluminum 5088-H32
Temper
AA 5088 · EN AlMg5Mn0.4
H32 = strain hardened and stabilized, quarter hard
Sheet condition balancing moderate strength with usable bending for tanks, panels and enclosures.
Values for the H32 condition
Other 5088 tempers and conditions
5088 is listed in 11 conditions; see the grade overview at 5088.
Compare all 11 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for maximum formability — deep drawing, tight bending, spinning before any welding or forming-heavy fabrication. | 145 | 290 | 22 | 70 HB | 29 % IACS |
Slightly strain hardened | Standard extrusion/plate condition when good formability plus a little extra strength than O is wanted. | 165 | 300 | 18 | 75 HB | 29 % IACS |
Strain hardened from hot working only | Choose for thick hot-rolled plate and extrusions where properties come from hot working, not deliberate cold work. | 170 | 300 | 14 | 76 HB | 29 % IACS |
Strain hardened and stabilized, marine temper | Equivalent marine plate route to H116; specified where a stabilizing thermal treatment is required by class rules. | 235 | 330 | 12 | 88 HB | 29 % IACS |
H116Default Strain hardened, corrosion-resistant marine temper | Default marine plate condition: high strength plus qualified exfoliation resistance (ASTM G66/G67) for hull and offshore structures. | 240 | 330 | 12 | 90 HB | — |
Strain hardened, quarter hard | Cold-rolled quarter-hard stock for non-marine general fabrication where stabilization is not required. | 245 | 335 | 10 | 90 HB | 29 % IACS |
H32This page Strain hardened and stabilized, quarter hard | Sheet condition balancing moderate strength with usable bending for tanks, panels and enclosures. | 250 | 340 | 10 | 92 HB | 29 % IACS |
Strain hardened, half hard | Half-hard cold-rolled sheet for stiff, mildly formed non-marine components. | 285 | 365 | 7 | 99 HB | 29 % IACS |
Strain hardened and stabilized, half hard | Use where higher strength and stiffness-per-thickness matter more than bend radius, e.g. treadplate and stiffened panels. | 290 | 370 | 8 | 100 HB | 29 % IACS |
Strain hardened and stabilized, three-quarter hard | Thin-gauge sheet/coil condition for flat, high-strength parts with only mild forming. | 310 | 385 | 6 | 105 HB | 29 % IACS |
Strain hardened and stabilized, full hard | Maximum cold-worked strength for flat stock; low ductility and reduced exfoliation resistance, avoid in hot chloride service. | 330 | 400 | 5 | 112 HB | 29 % IACS |
What is 5088-H32?
5088-H32 is 5088 in the H32 temper — sheet condition balancing moderate strength with usable bending for tanks, panels and enclosures. 5088-H32 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 340 MPa (49.3 ksi) — stronger than 65% of aluminum grades. Elongation at break is 10% and the elastic modulus is 70.5 GPa (10.2 Msi). 5088-H32 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 570°C (1,058 °F). H116 is the default condition FabDigit quotes; H32 is available on request or by drawing note.
Advantages
- Good corrosion resistance — 79/100, better than 96% of aluminum grades
- Tough — resists crack growth — 32 MPa·√m (29.1 ksi·√in), better than 83% of aluminum grades
- Readily welded — 86/100, 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
5088-H32 properties
Typical room-temperature values for 5088-H32; 22 are specific to this condition. Other listed values are 5088 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
5088-H32 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 570°C (1,058 °F).
Mechanical12
5088-H32 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 340 MPa (49.3 ksi) — stronger than 65% of aluminum grades. Elongation at break is 10% and the elastic modulus is 70.5 GPa (10.2 Msi).
Thermal6
5088-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 24.2 µm/m·K (13.4 µin/in·°F).
Electrical3
5088-H32 conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (79/100), better than 96% of aluminum grades.
Sustainability4
Producing a kilogram of 5088-H32 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 30%.
Manufacturability8
5088-H32's machinability is fair (47/100, worse than 68% of aluminum grades); weldability excellent (86/100); formability fair (50/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5088-H32
Is 5088 easy to machine?
Machines like other high-Mg 5000 series: gummy in O/H111, better in H34/H38 — use sharp polished high-rake carbide, high speed, generous coolant/lubricant to prevent built-up edge.
Can 5088 be welded?
Excellent GMAW/GTAW and friction-stir weldability with 5183 or 5356 filler; keep interpass temperature low and avoid long exposure at 70–200 °C to prevent β-phase sensitization.
Can 5088 be formed, bent or molded?
Best formed in O/H111; H116/H321 plate takes moderate bends (allow generous inside radius across the rolling direction); watch for Lüders/stretcher-strain marks on annealed sheet.
What surface finishes work on 5088?
Responds well to sulfuric-acid clear and hard anodizing (slightly grey tone from Mg), chemical conversion coating and marine paint systems; polishes to a satin rather than mirror finish.
5088 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; per AlMg5Mn0.4 designation | 4.5 – 5.5 | 5 |
| Mngrain/recrystallization control | 0.2 – 0.6 | 0.4 |
| Si | ≤ 0.25 | — |
| Fe | ≤ 0.4 | — |
| Cukept low for corrosion resistance | ≤ 0.1 | — |
| Cr | ≤ 0.25 | 0.1 |
| Zn | ≤ 0.25 | — |
| Tigrain refiner | ≤ 0.15 | — |
| Others (each)others total 0.15 max | ≤ 0.05 | — |
| Albalance; verify exact limits against the current AA registration record / EN 573-3 entry before ordering | balance | — |
5088-H32 — frequently asked
What is 5088-H32 used for?
5088-H32 is typically used for marine structural components, automotive structural sheet, welded hull and deck plate, vehicle body reinforcements, offshore walkways and platforms and storage tank shells. In short: high-strength marine 5000 series; stronger than typical 5083; formability traded for strength.
What is the yield strength of 5088-H32?
5088-H32 has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 340 MPa (49.3 ksi) — stronger than 65% of aluminum grades. Strength varies by condition: see the 11 listed tempers.
Is 5088-H32 easy to machine?
Reasonably — machinability is rated fair (47/100, worse than 68% of aluminum grades). Machines like other high-Mg 5000 series: gummy in O/H111, better in H34/H38 — use sharp polished high-rake carbide, high speed, generous coolant/lubricant to prevent built-up edge.
Can 5088-H32 be welded?
Yes — weldability is rated excellent (86/100). Excellent GMAW/GTAW and friction-stir weldability with 5183 or 5356 filler; keep interpass temperature low and avoid long exposure at 70–200 °C to prevent β-phase sensitization.
What surface finishes work on 5088-H32?
Responds well to sulfuric-acid clear and hard anodizing (slightly grey tone from Mg), chemical conversion coating and marine paint systems; polishes to a satin rather than mirror finish.
Can 5088-H32 be formed, bent or molded?
Best formed in O/H111; H116/H321 plate takes moderate bends (allow generous inside radius across the rolling direction); watch for Lüders/stretcher-strain marks on annealed sheet.
What is the maximum service temperature of 5088-H32?
5088-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.
What is the difference between 5088-H116 and 5088-O?
H116 is the default condition — default marine plate condition: high strength plus qualified exfoliation resistance (ASTM G66/G67) for hull and offshore structures. O: pick for maximum formability — deep drawing, tight bending, spinning before any welding or forming-heavy fabrication. Yield strength is 240 MPa in H116 versus 145 MPa in O.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- EN 573-3 Aluminium and aluminium alloys — Chemical composition — CEN (2019)
- ASTM B928 / ASTM B209 — Al-Mg marine sheet and plate — ASTM (2021)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- Aluminum Design Manual — The Aluminum Association (2020)
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.