Aluminum 5A05-H34
Temper
GB 5A05
H34 = strain hardened and stabilized, half hard
Mid-hard stabilised sheet for panels and tanks needing more stiffness/yield than O with acceptable ductility.
Values for the H34 condition
Other 5A05 tempers and conditions
5A05 is listed in 7 conditions; see the grade overview at 5A05.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Most stocked condition for sheet, plate, tube and rivet wire — best formability and weld-zone match. | 145 | 270 | 22 | 70 HB | 29 % IACS |
As fabricated | Forging or rolled blank supplied without controlled temper; properties confirmed after subsequent annealing. | 145 | 270 | 18 | 70 HB | 29 % IACS |
Strain hardened from hot working only | Default for extruded bar, profile, tube and thick plate where no cold work is applied after hot forming. | 150 | 275 | 16 | 72 HB | 29 % IACS |
Strain hardened and stabilized, quarter hard | Light cold work with stabilising anneal — higher yield than O while keeping good bending and stable properties. | 210 | 300 | 13 | 80 HB | 29 % IACS |
H34This page Strain hardened and stabilized, half hard | Mid-hard stabilised sheet for panels and tanks needing more stiffness/yield than O with acceptable ductility. | 250 | 330 | 9 | 88 HB | 29 % IACS |
Strain hardened, half hard | Cold-rolled half-hard sheet/strip for flat parts with limited forming; less stable than H34 for high-Mg alloys. | 270 | 340 | 7 | 95 HB | 28.5 % IACS |
Strain hardened, full hard | Full-hard drawn wire/strip; used for cold-driven 5A05 rivets and high-strength flat stock. | 340 | 400 | 5 | 108 HB | 28.5 % IACS |
What is 5A05-H34?
5A05-H34 is 5A05 in the H34 temper — mid-hard stabilised sheet for panels and tanks needing more stiffness/yield than O with acceptable ductility. 5A05-H34 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 330 MPa (47.9 ksi) — stronger than 65% of aluminum grades. Elongation at break is 9% and the elastic modulus is 70 GPa (10.2 Msi). 5A05-H34 has a density of 2.65 g/cm³ (0.0957 lb/in³), lighter than 90% of aluminum grades. It melts at 568°C (1,054 °F). O is the default condition FabDigit quotes; H34 is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 65/100, better than 82% of aluminum grades
- Good corrosion resistance — 70/100, better than 79% of aluminum grades
- Readily welded — 85/100, better than 79% of aluminum grades
- Tough — resists crack growth — 30 MPa·√m (27.3 ksi·√in), better than 76% of aluminum grades
Limitations
- Limited service temperature — 60°C (140 °F), worse than 100% of aluminum grades
- Poor heat conductor — 116 W/m·K (67 BTU/hr·ft·°F), worse than 84% of aluminum grades
- Low electrical conductivity — 29 % IACS, worse than 78% of aluminum grades
5A05-H34 properties
Typical room-temperature values for 5A05-H34; 22 are specific to this condition. Other listed values are 5A05 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
5A05-H34 has a density of 2.65 g/cm³ (0.0957 lb/in³), lighter than 90% of aluminum grades. It melts at 568°C (1,054 °F).
Mechanical11
5A05-H34 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 330 MPa (47.9 ksi) — stronger than 65% of aluminum grades. Elongation at break is 9% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
5A05-H34 is rated for continuous service to 60°C (140 °F). It conducts heat at 116 W/m·K (67 BTU/hr·ft·°F), worse than 84% of aluminum grades. Thermal expansion is 23.8 µm/m·K (13.2 µin/in·°F).
Electrical3
5A05-H34 conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), better than 79% of aluminum grades.
Sustainability4
Producing a kilogram of 5A05-H34 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 30%.
Manufacturability7
5A05-H34's machinability is fair (52/100, worse than 63% of aluminum grades); weldability excellent (85/100); formability fair (50/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5A05-H34
Is 5A05 easy to machine?
Gummy in O temper — use sharp polished-flute carbide, high rake, 300+ m/min and generous coolant/lubricant to avoid built-up edge; cold-worked tempers cut cleaner.
Can 5A05 be welded?
Excellent with TIG/MIG using ER5356 or ER5183 filler; no preheat, keep interpass low, avoid 4000-series filler (Mg₂Si cracking) and avoid prolonged sensitising heat.
Can 5A05 be formed, bent or molded?
Very good cold formability in O temper (deep drawing, bending, rivet heading); hard tempers need larger bend radii and may require intermediate annealing at 340–380 °C.
What surface finishes work on 5A05?
Anodises well (clear/hard); chemical conversion coating and marine paint systems adhere readily; polishing gives a slightly grey lustre due to the high Mg content.
5A05 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 |
|---|---|---|
| Mgmain strengthening solute | 4.8 – 5.5 | 5.1 |
| Mngrain/recrystallisation control | 0.3 – 0.6 | 0.45 |
| Si | ≤ 0.5 | — |
| Fe | ≤ 0.5 | — |
| Cu | ≤ 0.1 | — |
| Zn | ≤ 0.2 | — |
| Tigrain refiner, when added | ≤ 0.15 | — |
| Others (each)total ≤ 0.15 | ≤ 0.05 | — |
| Al | balance | — |
5A05-H34 — frequently asked
What is 5A05-H34 used for?
5A05-H34 is typically used for fuel and hydraulic tanks, welded structural parts, aircraft fittings and rivets. In short: 5056-class welded strength; strong Al-Mg rivet stock; 65 °C service ceiling.
What is the yield strength of 5A05-H34?
5A05-H34 has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 330 MPa (47.9 ksi) — stronger than 65% of aluminum grades. Strength varies by condition: see the 7 listed tempers.
Is 5A05-H34 easy to machine?
Reasonably — machinability is rated fair (52/100, worse than 63% of aluminum grades). Gummy in O temper — use sharp polished-flute carbide, high rake, 300+ m/min and generous coolant/lubricant to avoid built-up edge; cold-worked tempers cut cleaner.
Can 5A05-H34 be welded?
Yes — weldability is rated excellent (85/100). Excellent with TIG/MIG using ER5356 or ER5183 filler; no preheat, keep interpass low, avoid 4000-series filler (Mg₂Si cracking) and avoid prolonged sensitising heat.
What surface finishes work on 5A05-H34?
Anodises well (clear/hard); chemical conversion coating and marine paint systems adhere readily; polishing gives a slightly grey lustre due to the high Mg content.
Can 5A05-H34 be formed, bent or molded?
Very good cold formability in O temper (deep drawing, bending, rivet heading); hard tempers need larger bend radii and may require intermediate annealing at 340–380 °C.
What is the maximum service temperature of 5A05-H34?
5A05-H34 is rated for continuous use to about 60°C (140 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 5A05-O and 5A05-H18?
O is the default condition — most stocked condition for sheet, plate, tube and rivet wire — best formability and weld-zone match. H18: full-hard drawn wire/strip; used for cold-driven 5A05 rivets and high-strength flat stock. Yield strength is 145 MPa in O versus 340 MPa in H18.
Sources
- ASM Handbook Vol.2 — Properties of Wrought Aluminum Alloys (5056/5083 analogues) — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion of Aluminum 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.