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8-in x 8-in test panel with center hole for thermal efficiency testing by MIL-C-81945

MIL-C-81945 Thermal Efficiency Test Panels

Square test panel and round disc specimens for testing thermal efficiency by Military Specification MIL-C-81945B §4.7.8. The square panel is 3" x 3" x 0.040", and the disc specimen is 15/16" diameter by 0.040" thick. Both the square and the disc specimens are made from 6061-T6 aluminum. Other alloys may be used when comparing material and product compatibility.
 
Metaspec also makes larger test panels and discs for thermal efficiency testing by MIL-C-81945A §4.8.8, an older version of the same military specification. Contact us to learn more. 
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