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Aluminum 7022 vs 7075

Aluminum · grade comparison

Aluminum 7022 and 7075 are both aluminum grades. 7075 is the stronger of the two: yield strength 503 MPa (73 ksi) against 470 MPa (68.2 ksi) for 7022, about 7% more; tensile strength follows at 572 MPa (83 ksi) vs 530 MPa (76.9 ksi). 7075 is the more ductile: elongation 11% versus 8% for 7022, and 7075 is harder (175 HV vs 160 HV). 7022 conducts heat better (145 W/m·K vs 130 W/m·K).

7075Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

7022 vs 7075: properties

70227075

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

70 GPa10.2 Msi
71.7 GPa10.4 Msi

Shear Modulus

26.5 GPa3.8 Msi
26.9 GPa3.9 Msi

Bulk Modulus

71 GPa10.3 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

530 MPa76.9 ksi
572 MPa83 ksi

Yield Strength (0.2% offset)

470 MPa68.2 ksi
503 MPa73 ksi

Elongation at Break

8%
11%

Reduction in Area

18%
25%

Compressive Strength

480 MPa69.6 ksi
505 MPa73.2 ksi

Shear Strength

310 MPa45 ksi
331 MPa48 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
159 MPa23.1 ksi

Fracture Toughness (K_IC)

28 MPa·√m25.5 ksi·√in
27 MPa·√m24.6 ksi·√in

Hardness, Rockwell B

85 HRB
87 HRB

Hardness, Vickers

160 HV
175 HV

Charpy V-Notch Impact (RT)

—
8 J5.9 ft·lbf

Same in both: Poisson's Ratio 0.33 · Hardness, Brinell 150 HB

Physical

Density and transition temperatures.

Density

2.78 g/cm³0.1 lb/in³
2.81 g/cm³0.1 lb/in³

Melting Point (Solidus)

475°C887 °F
477°C891 °F

Same in both: Liquidus Temperature 635°C1,175 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

145 W/m·K83.8 BTU/hr·ft·°F
130 W/m·K75.1 BTU/hr·ft·°F

Specific Heat Capacity

865 J/kg·K0.21 BTU/lb·°F
960 J/kg·K0.23 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23.5 µm/m·K13.1 µin/in·°F
23.6 µm/m·K13.1 µin/in·°F

Latent Heat of Fusion

390 J/g168 BTU/lb
395 J/g170 BTU/lb

Same in both: Max Service Temperature (continuous) 120°C248 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

32 % IACS
33 % IACS

Electrical Resistivity

5.4×10⁻⁸ Ω·m2.13 µΩ·in
5.15×10⁻⁸ Ω·m2.03 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.84 V
-0.83 V

Corrosion Resistance

45 / 100
35 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

75 / 100
78 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
160%

Weldability

20 / 100
18 / 100

Formability (cold)

22 / 100
25 / 100

Castability

35 / 100
—

Brazeability / Solderability

15 / 100
10 / 100

Polishability

72 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
205 MJ/kg88,134 BTU/lb

Embodied Water

1,100 L/kg132 gal/lb
1,200 L/kg144 gal/lb

Typical Recycled Content

20%
15%

Same in both: Embodied Carbon (primary production) 12.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

191 kN·m/kg
204 kN·m/kg

Specific Stiffness (E / density)

25.2 MN·m/kg
25.5 MN·m/kg

Modulus of Resilience

1,578 kJ/m³
1,764 kJ/m³

Thermal Diffusivity

60.3 mm²/s
48.2 mm²/s

Thermal Shock Resistance Index

47
44

Strength versus weight

Yield strength against density for every aluminum grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scale70757022

Manufacturing and finishing

Capability70227075
CNC machining—Yes
Sheet metal—Yes
Default condition—T6
Relative cost$$$ Premium$$$ Premium
Min. machined wall—0.8 mm
Best machined surface—Ra 0.8 µm
Anodizing Type II—Yes
Cerakote—Yes
Chem Film (Alodine)—Yes
DLC—Yes
E-Coating—Yes
Electropolishing—Yes
Hard Anodize Type III w/ PTFE—Yes
Hard Anodizing Type III—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes

They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

7022 vs 7075 — frequently asked

Is 7075 stronger than 7022?

Yes. 7075 has a typical yield strength of 503 MPa (73 ksi) against 470 MPa (68.2 ksi) for 7022 — about 7% more. Tensile strength is 572 MPa (83 ksi) vs 530 MPa (76.9 ksi).

Which is cheaper, 7022 or 7075?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose 7022 over 7075?

Pick 7075 when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 7022 and 7075 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.