Full Transcript:
What’s up guys?!?!?! This is Michael with Michael Talks Metal. Aluminum you say? Why yes, today we ARE talking about Aluminum. So glad you asked.
Our next aluminum alloy commonly used in aerospace applications is 7075.
7075 is the highest strength aluminum alloy of our series. It is available in all common mill products and several tempers.
If you would like to review the temper designations….. click here
The combination of high strength and fair machinability make it ideal for many aerospace and ordnance applications. In the various T7xxx stress corrosion and exfoliation resistant tempers it is often specified in place of 2024, 2014, or 2017.
Its UNS designation is UNS A97075.
| 7075 Chemistry | UNS A97075 |
|---|---|
| Silicon | 0.40 % Max |
| Iron | 0.50 % Max |
| Copper | 1.20 – 2.00 % |
| Manganese | 0.30 % Max |
| Magnesium | 2.10 – 2.90 % |
| Chromium | 0.18 – 0.28 % |
| Zinc | 5.10 – 6.10 % |
| Titanium | 0.20 % Max |
| Other | 0.05 % Each & 0.15% Total |
PHYSICAL PROPERTIES:
Density .101 lbs per cubic inch
Mean Coefficient of Thermal Expansion from room temperature to 212 deg F:
13.0 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.
COMPARATIVE CHARACTERISTICS:
T6xx Tempers:
C for General Corrosion Resistance
C for Machinability
B for Anodizing Response
C for Stress Corrosion
T7xx Tempers:
C for General Corrosion
C for Machinability
B for Anodizing Response
B for Stress Corrosion
We have a lot of AMS specifications for you today. Each AMS is for a specific product and the listed temper , so here goes…and that’s it! Wow that was fast…head to the website, link in the description to take a closer look at those specs….
Common AMS Specifications: product and temper:
| Specification | Shapes | Grade | Temper |
|---|---|---|---|
| AMS 4045 | Sheet, Plate | 7075 | T6 – T651 |
| AMS 4078 | Plate | 7075 | T7351 |
| AMS 4154 | Extruded Bars, Rods, Wire, Shapes, Tubing | 7075 | T6 |
| AMS 4166 | Extruded Bars, Rods, Wire, Shapes, Tubing | 7075 | T73 |
| AMS 4167 | Extruded Bars, Rods, Wire, Shapes, Tubing | 7075 | T73511 |
| AMS 4168 | Extruded Bars, Rods, Wire, Shapes, Tubing | 7075 | T76510 |
| AMS 4169 | Extruded Bars, Rods, Wire, Shapes, Tubing | 7075 | T76511 |
| AMS 4122 | Extruded Bars, Rods, Wire, Shapes, Tubing | 7075 | T6 |
| AMS 4123 | Cold Finished Bars, Rods | 7075 | T651 |
| AMS 4124 | Cold Finished Bars, Rods | 7075 | T7351 |
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 CHECK THE SPECS !!!!!!!!!!!
Visit us at our website …… www.michlinmetals.com
