| Anodize
to Aerospace Material Specifications (AMS)
AMS
anodizing specifications are similar to Mil-A-8625.
The major differences are in the testing requirements.
All AMS specs do not allow production parts to be
run until preproduction samples have been approved
or waived in writing by purchaser. Coating weight
test is generally required on a lot basis rather than
on a monthly basis. Additional and/or specific tests
may be required. |
| Spec. |
Thickness |
Comment |
| AMS-2469F |
Hardcoat
0.002”+0.0005” |
Salt
spray test is a requirement (when sealed) for 240 hours.
No corrosion spots allowed at all. |
| AMS-2470L |
Chromic
acid process |
336 hours salt spray test required and controlled on
2024 - T3 aluminum. |
.
| AMS-2471E |
Sulfuric
acid process - no dye coating |
336 hours salt spray test required and controlled on
2024 - T3 aluminum. |
| AMS-2472
E |
Sulfuric
acid dye black |
336
hours salt spray test required and controlled on 2024
- T3 aluminum. |
| AMS-2482C |
Hardcoat
0.002”+0.0005”" with Teflon |
336
hours salt spray test required. Coefficient or friction
test required. |
