MIL-DTL-5541 Quality Control Test Specimens
Process control test specimens used for MIL-DTL-5541 (Chemical Conversion Coatings on Aluminum and Aluminum Alloys). These test specimens are used for process control and quality conformance by manufacturers, platers, and inspectors. Quality control test specimens are 3" x 10" and are no less than 0.020" thick. MIL-DTL-5541 recommends using either the same aluminum alloy and temper that is treated during the monthly process control period, or 2024-T3 aluminum for class 1A coatings and 6061-T6 aluminum for class 3 coatings.