MIL-DTL-81706 Quality Control Test Panels
Aluminum test panels used in quality and conformance testing by MIL-DTL-81706 (Chemical Conversion Materials for Coating Aluminum & Aluminum Alloys). These test panels may be made from 2024-T3 bare aluminum (AMS 4037), 7075-T6 bare aluminum (AMS 4045), or 6061-T6 aluminum (AMS 4027). The panel dimensions may be 3" x 5" x 0.032" or 3" x 10" x 0.032", depending on the specific requirements of the test method. These test panels have a premium as rolled surface finish. Customized test panels are available on request.
Premium panels are cut to size, deburred, and then carefully inspected to ensure that at least one as-rolled side has zero detectable surface scratches or oxidation. Metaspec's standard is that if a visible scratch can be detected with a fingernail, then that side of the panel is not premium grade. The reverse side of the panel may have some detectable scratches – premium panels are only premium on one side, not both. The panels are wiped and cleaned on both sides with solvent per ASTM D609 to remove mill oil and fingerprints. The panels are packed in bundles with a light oil to prevent corrosion. Most Metaspec customers prefer our premium panels, but this high level of surface condition is not necessary for some applications.