Aluminum 7010
AA 7010 · UNS A97010 · EN AW-7010, AW 7010
7010 is a high-strength Al-Zn-Mg-Cu aerospace alloy, essentially a European-developed counterpart to 7050, using zirconium instead of chromium for grain-structure control so that thick sections quench and through-harden without excessive quench sensitivity.
7010 tempers and conditions
7010 is supplied in 14 conditions, soft to hard.
Compare all 14 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, used for severe forming or straightening before re-solution treatment and ageing. | 110 | 240 | 16 | 65 HB | 46 % IACS |
T73 fully overaged, stress relieved by compression | Forging temper for maximum SCC resistance in heavy landing-gear and fitting forgings. | 415 | 480 | 9 | 136 HB | 41 % IACS |
Solution heat treated and overaged for stress-corrosion resistance | Fully overaged 7010 trading roughly 10 % strength for high resistance to stress-corrosion cracking and improved fracture toughness. | 420 | 490 | 10 | 140 HB | 40 % IACS |
T73, stress relieved by stretching | Pick when maximum stress-corrosion and exfoliation resistance matters more than strength. | 420 | 490 | 10 | 138 HB | 41 % IACS |
Overaged between T73 and T76 | Intermediate overaged temper balancing strength, fracture toughness and stress-corrosion resistance in thick 7010 forgings and plate. | 440 | 510 | 9 | 148 HB | 39 % IACS |
Overaged (T74), stress relieved by compression | Die-forging equivalent of T7451, stress relieved by cold compression for dimensionally stable machined forgings. | 440 | 505 | 8 | 143 HB | 40 % IACS |
T74, stress relieved by stretching | Standard thick-plate temper: best balance of strength, toughness and SCC resistance for machined aerospace structure. | 450 | 515 | 9 | 145 HB | 40 % IACS |
Overaged for exfoliation-corrosion resistance | Lightly overaged temper retaining most T6 strength while giving good resistance to exfoliation corrosion in thin-to-medium sections. | 465 | 530 | 9 | 152 HB | 38 % IACS |
T76 overaged, stress relieved by compression | Forging temper for higher-strength parts where exfoliation resistance is required but full T74 overageing is not. | 465 | 525 | 8 | 148 HB | 38 % IACS |
T6, stress relieved by compression | Peak-aged 7010 forging temper with residual stress removed by cold compression, giving T6 strength plus dimensional stability for heavy machined parts. | 470 | 530 | 8 | 157 HB | 34 % IACS |
T76, stress relieved by stretching | Higher strength than T7451 with good exfoliation-corrosion resistance; used for thinner plate and skins. | 475 | 535 | 9 | 150 HB | 38 % IACS |
T6, heat treated by the user | Peak-aged T6-level strength re-developed by heat treatment outside the mill; highest strength of the 7010 tempers but lowest SCC and exfoliation resistance. | 480 | 540 | 8 | 160 HB | 34 % IACS |
T6, stress relieved by stretching | Peak-strength plate with residual stress removed by controlled stretching for stable machining. | 495 | 555 | 8 | 158 HB | 33 % IACS |
Solution heat treated and artificially aged | Choose for maximum strength in thinner sections where stress-corrosion exposure is low. | 500 | 560 | 8 | 160 HB | 33 % IACS |
What is 7010?
7010 is a high-strength Al-Zn-Mg-Cu aerospace alloy, essentially a European-developed counterpart to 7050, using zirconium instead of chromium for grain-structure control so that thick sections quench and through-harden without excessive quench sensitivity. It is supplied mainly as thick rolled plate and die forgings in overaged T745x/T765x tempers, where it combines ~500 MPa strength with good fracture toughness and much better stress-corrosion resistance than 7075-T6. Limits are poor fusion weldability, modest general corrosion resistance (usually clad, anodized or primed), high cost, and loss of strength above about 120 °C. 7010 has a density of 2.82 g/cm³ (0.102 lb/in³), heavier than 89% of aluminum grades. It melts at 476°C (889 °F). 7010 has a yield strength of 450 MPa (65.3 ksi) and a tensile strength of 515 MPa (74.7 ksi) — stronger than 92% of aluminum grades. Elongation at break is 9% and the elastic modulus is 71 GPa (10.3 Msi).
What is 7010 used for?
- Aircraft wing skins
- Fuselage bulkheads
- Wing spars and ribs
- Landing gear components
- Structural die forgings
- Machined aerospace fittings
- Thick-plate machined frames
Advantages
- Tough — resists crack growth — 36 MPa·√m (32.8 ksi·√in), better than 93% of aluminum grades
- High strength — 450 MPa (65.3 ksi), better than 92% of aluminum grades
- Easy to machine — 72/100, better than 80% of aluminum grades
Limitations
- Difficult to weld — 18/100, worse than 94% of aluminum grades
- Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades
7010 properties
Typical room-temperature values; bars are the position among aluminum grades.
Physical3
7010 has a density of 2.82 g/cm³ (0.102 lb/in³), heavier than 89% of aluminum grades. It melts at 476°C (889 °F).
Mechanical14
7010 has a yield strength of 450 MPa (65.3 ksi) and a tensile strength of 515 MPa (74.7 ksi) — stronger than 92% of aluminum grades. Elongation at break is 9% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
7010 is rated for continuous service to 120°C (248 °F). It conducts heat at 154 W/m·K (89 BTU/hr·ft·°F), better than 68% of aluminum grades. Thermal expansion is 23.4 µm/m·K (13 µin/in·°F).
Electrical3
7010 conducts electricity at 40 % IACS, better than 72% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 69% of aluminum grades.
Sustainability4
Producing a kilogram of 7010 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 8%.
Manufacturability8
7010's machinability is very good (72/100, better than 80% of aluminum grades); weldability poor (18/100); formability poor (25/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. 7010 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 7010
Is 7010 easy to machine?
Machines well in T7x tempers with sharp carbide tooling, high speed and copious coolant; chips are gummier than 2000-series so use polished flutes and avoid rubbing to prevent built-up edge.
Can 7010 be welded?
Not fusion weldable for structural use (hot cracking and SCC in the HAZ); join by mechanical fastening, adhesive bonding or friction stir welding with qualified procedures.
Can 7010 be formed, bent or molded?
Form in O or freshly solution-treated condition; aged T6/T7x plate has low ductility, so heavy forming or tight bends should be avoided and hot forging is done above ~380 °C.
Manufacturability
The process limits FabDigit applies to 7010. Every 7010 part is priced by an engineer; design inside these and the quote comes back without a redesign loop.
CNC machining
| Machinability | Excellent72 / 100 |
|---|---|
| ISO material group | N.1 |
| Cutting speed (rough / finish) | 350 / 420 m/min |
| Minimum wall | 0.5 mm |
| Minimum internal radius | 1 mm |
| Drill depth limit | 8× diameter |
| Best surface (machined / polished) | Ra 0.8 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Not Recommend25 / 100 |
|---|---|
| Weldability | Not Recommend18 / 100 |
7010 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 |
|---|---|---|
| Zn | 5.7 – 6.7 | 6.2 |
| Mg | 2.1 – 2.6 | 2.35 |
| Cu | 1.5 – 2 | 1.75 |
| Zrgrain-structure control instead of Cr | 0.1 – 0.16 | 0.13 |
| Feimpurity limit kept low for toughness | ≤ 0.15 | |
| Si | ≤ 0.12 | |
| Mn | ≤ 0.1 | |
| Cr | ≤ 0.05 | |
| Ti | ≤ 0.06 | |
| Others (each)total 0.15 max | ≤ 0.05 | |
| Al | balance |
What surface finishes work on 7010?
Chromic/sulfuric or hard anodize plus chromate-free conversion coating and primer for corrosion protection; anodic colour is dull grey, and shot peening is common on machined surfaces to raise fatigue life.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Conversion Coating
PVD Coating
Equivalent designations
Standards and trade names that resolve to Aluminum 7010 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A97010
- Aluminum Association
- AA7010
- EN / DIN / Werkstoff-Nr.
- AW-7010AW 7010AlZn6MgCu
How much does 7010 cost?
7010 is a premium-cost aluminum ($$$), cheaper than about 59% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
7010 — frequently asked
What is 7010 used for?
7010 is typically used for aircraft wing skins, fuselage bulkheads, wing spars and ribs, landing gear components, structural die forgings and machined aerospace fittings. In short: aerospace plate alloy.
What is the yield strength of 7010?
7010 has a typical yield strength of 450 MPa (65.3 ksi) and a tensile strength of 515 MPa (74.7 ksi) — stronger than 92% of aluminum grades. Strength varies by condition: see the 14 listed tempers.
Is 7010 easy to machine?
Yes — machinability is rated very good (72/100, better than 80% of aluminum grades). Machines well in T7x tempers with sharp carbide tooling, high speed and copious coolant; chips are gummier than 2000-series so use polished flutes and avoid rubbing to prevent built-up edge.
Can 7010 be welded?
Not readily — weldability is rated poor (18/100). Not fusion weldable for structural use (hot cracking and SCC in the HAZ); join by mechanical fastening, adhesive bonding or friction stir welding with qualified procedures.
What surface finishes work on 7010?
Chromic/sulfuric or hard anodize plus chromate-free conversion coating and primer for corrosion protection; anodic colour is dull grey, and shot peening is common on machined surfaces to raise fatigue life.
Can 7010 be formed, bent or molded?
Form in O or freshly solution-treated condition; aged T6/T7x plate has low ductility, so heavy forming or tight bends should be avoided and hot forging is done above ~380 °C.
What is the maximum service temperature of 7010?
7010 is rated for continuous use to about 120°C (248 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 7010 cost?
7010 is a premium-cost aluminum ($$$), cheaper than about 59% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Can FabDigit make parts in 7010?
Yes — 7010 is available for CNC machining and sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- EN 485-2 Aluminium and aluminium alloys — Sheet, strip and plate: mechanical properties — CEN (2016)
- EN 573-3 Chemical composition of wrought aluminium alloys — CEN (2019)
- 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 — ASM International (1990)
- MMPDS-17 Metallic Materials Properties Development and Standardization — Battelle/FAA (2022)
- High-strength 7000-series aerospace plate and forging datasheets (7010/7050 class) — Constellium / Kaiser Aluminum (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.