Aluminum 5A05-H112
Temper
GB 5A05
H112 = strain hardened from hot working only
Default for extruded bar, profile, tube and thick plate where no cold work is applied after hot forming.
Values for the H112 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 |
H112This page 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 |
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-H112?
5A05-H112 is 5A05 in the H112 temper — default for extruded bar, profile, tube and thick plate where no cold work is applied after hot forming. 5A05-H112 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 275 MPa (39.9 ksi) — weaker than 65% of aluminum grades. Elongation at break is 16% and the elastic modulus is 70 GPa (10.2 Msi). 5A05-H112 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; H112 is available on request or by drawing note.
Advantages
- Tough — resists crack growth — 35 MPa·√m (31.9 ksi·√in), better than 91% of aluminum grades
- Readily welded — 90/100, better than 90% of aluminum grades
- Good corrosion resistance — 74/100, better than 87% of aluminum grades
- Ductile — tolerates forming and impact — 16%, better than 84% of aluminum grades
- Forms and bends easily — 70/100, better than 83% 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
5A05-H112 properties
Typical room-temperature values for 5A05-H112; 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-H112 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-H112 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 275 MPa (39.9 ksi) — weaker than 65% of aluminum grades. Elongation at break is 16% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
5A05-H112 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
5A05-H112 conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (74/100), better than 87% of aluminum grades.
Sustainability4
Producing a kilogram of 5A05-H112 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-H112's machinability is fair (45/100, worse than 72% of aluminum grades); weldability excellent (90/100); formability very good (70/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5A05-H112
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-H112 — frequently asked
What is 5A05-H112 used for?
5A05-H112 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-H112?
5A05-H112 has a typical yield strength of 150 MPa (21.8 ksi) and a tensile strength of 275 MPa (39.9 ksi) — weaker than 65% of aluminum grades. Strength varies by condition: see the 7 listed tempers.
Is 5A05-H112 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% 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-H112 be welded?
Yes — weldability is rated excellent (90/100). 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-H112?
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-H112 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-H112?
5A05-H112 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 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.