Aluminum 7095-T6
Temper
AA 7095 · UNS A97095
T6 = solution heat treated and artificially aged
Maximum static strength for forgings and extrusions where SCC exposure is controlled.
Values for the T6 condition
Other 7095 tempers and conditions
7095 is listed in 12 conditions; see the grade overview at 7095.
Compare all 12 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, supplied for deep forming or machining before re-solution treatment. | 115 | 240 | 16 | 62 HB | 44 % IACS |
As fabricated | Mill stock delivered without controlled heat treatment; only for further processing. | 250 | 380 | 12 | 110 HB | 38 % IACS |
Solution heat treated (unstable) | Temporary soft condition immediately after quench, used for forming/riveting before aging. | 260 | 430 | 18 | 105 HB | 27 % IACS |
T73, stress relieved by stretching | Low-distortion thick plate for parts machined from solid where SCC resistance is critical. | 570 | 620 | 12 | 163 HB | 40 % IACS |
Solution heat treated and overaged for stress-corrosion resistance | Choose when stress-corrosion cracking in short-transverse direction governs design. | 575 | 625 | 12 | 165 HB | 39 % IACS |
T74, stress relieved by stretching | Preferred thick-plate temper for lower-wing / fuselage panels where damage tolerance matters. | 610 | 655 | 11 | 174 HB | 38 % IACS |
Overaged between T73 and T76 | Balanced temper for thick forgings needing both high strength and good SCC resistance. | 615 | 660 | 11 | 175 HB | 37 % IACS |
T76, stress relieved by stretching | Upper-wing-skin type plate: near-peak strength with acceptable exfoliation resistance. | 638 | 675 | 10 | 181 HB | 36 % IACS |
Overaged for exfoliation-corrosion resistance | Thin sections and extrusions needing exfoliation resistance with only modest strength loss. | 640 | 680 | 10 | 182 HB | 36 % IACS |
Retrogression and re-aged (three-step) temper | Highest strength with T76-level corrosion behaviour; used for premium wing/fuselage parts. | 662 | 700 | 10 | 188 HB | 35 % IACS |
T651Default T6, stress relieved by stretching | Standard peak-aged, low-residual-stress plate condition for machined thick aerospace structure. | 675 | 710 | 10 | 190 HB | 31 % IACS |
T6This page Solution heat treated and artificially aged | Maximum static strength for forgings and extrusions where SCC exposure is controlled. | 685 | 720 | 9 | 195 HB | 30 % IACS |
What is 7095-T6?
7095-T6 is 7095 in the T6 temper — maximum static strength for forgings and extrusions where SCC exposure is controlled. 7095-T6 has a yield strength of 685 MPa (99.4 ksi) and a tensile strength of 720 MPa (104 ksi) — stronger than 100% of aluminum grades. Elongation at break is 9% and the elastic modulus is 71.5 GPa (10.4 Msi). 7095-T6 has a density of 2.86 g/cm³ (0.103 lb/in³), heavier than 97% of aluminum grades. It melts at 470°C (878 °F). T651 is the default condition FabDigit quotes; T6 is available on request or by drawing note.
Advantages
- High strength — 685 MPa (99.4 ksi), better than 100% of aluminum grades
Limitations
- Needs corrosion protection — 30/100, worse than 98% of aluminum grades
- Difficult to weld — 15/100, worse than 96% of aluminum grades
- Limited service temperature — 110°C (230 °F), worse than 89% of aluminum grades
7095-T6 properties
Typical room-temperature values for 7095-T6; 16 are specific to this condition. Other listed values are 7095 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
7095-T6 has a density of 2.86 g/cm³ (0.103 lb/in³), heavier than 97% of aluminum grades. It melts at 470°C (878 °F).
Mechanical14
7095-T6 has a yield strength of 685 MPa (99.4 ksi) and a tensile strength of 720 MPa (104 ksi) — stronger than 100% of aluminum grades. Elongation at break is 9% and the elastic modulus is 71.5 GPa (10.4 Msi).
Thermal6
7095-T6 is rated for continuous service to 110°C (230 °F). It conducts heat at 130 W/m·K (75.1 BTU/hr·ft·°F), worse than 65% of aluminum grades. Thermal expansion is 23.4 µm/m·K (13 µin/in·°F).
Electrical3
7095-T6 conducts electricity at 30 % IACS, worse than 73% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is poor (30/100), worse than 98% of aluminum grades.
Sustainability4
Producing a kilogram of 7095-T6 takes about 215 MJ of energy and emits 13 kg of CO₂ — more than 93% of aluminum grades. Typical recycled content is 5%.
Manufacturability8
7095-T6's machinability is good (68/100, better than 67% of aluminum grades); weldability poor (15/100); formability poor (18/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 7095-T6
Is 7095 easy to machine?
Machines well in T6/T7x with sharp carbide tooling, high speed and flood coolant; chips are short and residual-stress distortion is small in stress-relieved 51 tempers.
Can 7095 be welded?
Not fusion weldable (hot cracking, loss of temper); join by riveting, bolting or friction stir welding with post-weld property knock-down accounted for.
Can 7095 be formed, bent or molded?
Form in O or freshly quenched W condition then age; peak-aged plate tolerates only large-radius bending and gentle stretch forming.
What surface finishes work on 7095?
Chromic/sulphuric anodize, hard anodize or Alodine + epoxy primer for corrosion protection; shot peening is common to improve fatigue and SCC life.
7095 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 |
|---|---|---|
| Znhigh Zn enabled by spray forming (no macrosegregation) | 7.6 – 8.8 | 8.2 |
| Mg | 1.6 – 2.2 | 1.9 |
| Cu | 1.6 – 2.2 | 1.9 |
| Zrgrain-structure control (Al3Zr dispersoids) | 0.05 – 0.15 | 0.11 |
| Felow-Fe for toughness | ≤ 0.12 | 0.06 |
| Si | ≤ 0.1 | 0.05 |
| Mn | ≤ 0.05 | — |
| Cr | ≤ 0.04 | — |
| Ti | ≤ 0.06 | — |
| Others (each)total 0.15 max | ≤ 0.05 | — |
| Al | balance | — |
7095-T6 — frequently asked
What is 7095-T6 used for?
7095-T6 is typically used for commercial aircraft wing skins, fuselage panels and high-strength thick plate. In short: highest-strength 7000-series plate; spray-formed aerospace grade; not fusion weldable.
What is the yield strength of 7095-T6?
7095-T6 has a typical yield strength of 685 MPa (99.4 ksi) and a tensile strength of 720 MPa (104 ksi) — stronger than 100% of aluminum grades. Strength varies by condition: see the 12 listed tempers.
Is 7095-T6 easy to machine?
Reasonably — machinability is rated good (68/100, better than 67% of aluminum grades). Machines well in T6/T7x with sharp carbide tooling, high speed and flood coolant; chips are short and residual-stress distortion is small in stress-relieved 51 tempers.
Can 7095-T6 be welded?
Not readily — weldability is rated poor (15/100). Not fusion weldable (hot cracking, loss of temper); join by riveting, bolting or friction stir welding with post-weld property knock-down accounted for.
What surface finishes work on 7095-T6?
Chromic/sulphuric anodize, hard anodize or Alodine + epoxy primer for corrosion protection; shot peening is common to improve fatigue and SCC life.
Can 7095-T6 be formed, bent or molded?
Form in O or freshly quenched W condition then age; peak-aged plate tolerates only large-radius bending and gentle stretch forming.
What is the maximum service temperature of 7095-T6?
7095-T6 is rated for continuous use to about 110°C (230 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 7095-T651 and 7095-O?
T651 is the default condition — standard peak-aged, low-residual-stress plate condition for machined thick aerospace structure. O: softest condition, supplied for deep forming or machining before re-solution treatment. Yield strength is 675 MPa in T651 versus 115 MPa in O.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
- MMPDS-17 (Metallic Materials Properties Development and Standardization) 7000-series plate typical values — Battelle/FAA (2022)
- Spray Forming of High-Strength Aluminium Alloys — process and property overview — Woodhead / Elsevier (2011)
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.