Aluminum 7075 Machining

Aluminum 7075

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.

Aluminum 7075 has a machining cost factor of 0.9 when compared to steel 12L14. It 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.

Industries & Applications

  • Aircraft components

Aluminum Parts Gallery

Aluminum 7075 Characteristics

TEMPER

Yield Strength

Ultimate Tensile Strength

Modulus of Elasticity

Brinell Hardness (500kg/10mm)

Untempered

17

33

10,000

60

T6 T651

73

83

10,000

150

T73, T7351

61

73

10,000

135

 

Aluminum Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Aluminum
Higher strength
7075
Aircraft components
+/-.0015 6 .09

Common Material Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Steel
Designed for excellent machinability. Case hard only
12L14
Endless commercial products; probably more pounds used in turned products than any other bar stock
Cold drawn
0
1 1
Stainless Steel
Designed for machining, non-magnetic
303
Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistance
Cold finished
+/- .002
1.9 2.7
Brass
Strength, corrosion and wear resistance, and excellent machinability
C35300
Well suited for parts with knurling or threading
+0015 3.5 .07
Aluminum
Designed for machining
2011
Electronic hardware, endless commercial products
Cold finish
+/-.0015
3.8 .6
Titanium
High strength, light weight, good bio-compatibility
Ti-6Al-4VEli
Medical implants
Ground & polished
+/-.002
30.2 6

To review our Machining Materials Guide, please click here.

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