Aluminum 7075 Machined Parts

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Aluminum 7075 Machined Parts

Aluminum 7075 Machined Parts

3Q MACHINING has a good experience for machining quality parts from Aluminum alloy 7075. We can machine intricate parts on our CNC Lathe machines and CNC turning centers.

Aluminum alloy 7075 is the strongest of available aluminum alloys, excellent for jobs that require extreme strength while remaining lightweight. It possesses great cracking resistance and increases in strength as temperature decreases, making it ideal for the aerospace industry.

Note: Aluminum 7075 can be forged and heat treated, but is not ideal for welding. 7075 can be heat treated, annealed, and aged. It is not as ideal for anodizing compared to Aluminum 6061 and may produce a yellowish tint when clear anodizing.

Aluminum 7075 Machining Capability

  1. CNC Lathe
  2. CNC Milling
  3. CNC Turning

Aluminum 7075 Applications

  • Aircraft components

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Common Material Comparison

TypeGeneral CharacteristicsAlloyCommon ApplicationsTolerances for 1/2″ Dia.
SteelDesigned for excellent machinability. Case hard only12L14Endless commercial products; probably more pounds used in turned products than any other materialCold drawn
Stainless SteelDesigned for machining, non-magnetic303Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistanceCold finished
+/- .002
BrassStrength, corrosion and wear resistance, and excellent machinabilityC35300Well suited for parts with knurling or threading+/-.0015
AluminumDesigned for machining2011Electronic hardware, endless commercial productsCold finish
TitaniumHigh strength, light weight, good bio-compatibilityTi-6Al-4VEliMedical implantsGround & polished

Aluminum 7075 Characteristics


Workability Poor
Weldability – BrazabilityPoor
Corrosion – ResistanceAverage

Note: This alloy is generally solution heat treated to further enhance its high-strength properties.

Aluminum 7075 Chemistry Information

Element% Present

Aluminum 7075 Mechanical Information: Physical Properties

Density0.1 lb/in3
Ultimate Tensile Strength76 ksi
Yield Tensile Strength68 ksi
Fatigue Strength30 ksi
Shear Strength44 ksi
Shear Modulus3,800 ksi
Hardness Rockwell | BrinellB84 | 140
Elongation at Break Percentage10%
Modulus of Elasticity10,400 ksi
Poisson’s Ratio0.32
Machinability Percentage70%
Melting Point910-1,1165 °F
Specific Heat2.1 x 10^-1 BTU/lb-°F
Thermal Conductivity1,090 BTU-in/hr-ft^2-°F
Electrical Conductivity35% IACS
Picture of Author: Mose Li

Author: Mose Li

Director of Project Engineering at 3Q Machining

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