Full Transcript:

What’s up guys?!?!?! This is Michael with Michael Talks Metal. Well in this case we’re still talkin aluminum and sooooo…..Our next aluminum alloy commonly used in aerospace applications is 7050.

For review of our prior video on Aluminum temper designations…….. click here.

7050 is a high strength alloy available in all common mill products and several tempers. It has high strength and good machinability but only fair general corrosion resistance and anodizing ability.  Most often used in the various T7xxx stress corrosion and exfoliation resistant tempers. Its UNS designation is UNS A97050.


ChemistryUNS A97050 – 7050
Silicon0.12 % Max
Iron0.15 % Max
Copper2.00 – 2.60 %
Manganese0.10 % Max
Magnesium1.90 – 2.60 %
Chromium0.04 % Max
Zinc5.70 – 6.70 %
Titanium0.06 % Max
Zirconium0.08 – 0.15 %
Other0.05 % Each & 0.15% Total


Density        .102 lbs per cubic inch

Mean Coefficient of Thermal Expansion from room temperature to 212 deg F:

13.1 microinch per inch per deg F

Comparative Characteristics can be used to evaluate different alloys and tempers of Aluminum. Ratings are in decreasing order of merit.


All tempers of 7050

C for General Corrosion Resistance

T7xx tempers:

B for Stress Corrosion Cracking

B for Machinability

B for Anodizing Response

Common AMS Specifications: product and temper:

7050T7451PlateAMS 4050
7050T7651PlateAMS 4201
7050T76511Extruded Bars, Rods, Wire, Shapes, TubingAMS 4340
7050T73511Extruded Bars, Rods, Wire, Shapes, TubingAMS 4341
7050T74511Extruded Bars, Rods, Wire, Shapes, TubingAMS 4342


Commercial specifications are too numerous for us to detail here.

Additional specifications and part requirements can alter what we have shown you here today. So time # ninety don’t forget to CHECK THE SPECS !!!!!!!!!!!

Michlin Metals is a distributor and supplier of Aluminum 7050 please visit our website for more info www.michlinmetals.com. If you made it this far and haven’t subscribed please consider clicking here. If you missed last weeks video click here. This is Michael with Michael Talks Metal, see you next Thursday 10am, I’m out!