AMS2773F Heat Treatment Cast Nickel Alloy and Cobalt Alloy Parts

AMS2773F results from a Five-Year Review and update of this specification with the addition of ordering information, added furnace Class 5 and Type D instrumentation to pyrometry (3.1.1), added revised partial pressure and leak rate requirements to vacuum furnaces (3.1.2.2), revised amount of material removed from heating media (3.1.2.3), revised cleaning such that purchaser shall supply clean parts in prior to heat treatment (3.2.1.1), revised racking requirements regarding small parts (3.2.2), revised offset temperature selection in control instruments (3.2.3), changed start of soak for batch furnaces to align with AMS2759 (3.2.5.1), changed start of soak for vacuum furnaces to align with AMS2769 (3.2.5.2), changed start of soak for continuous furnaces such that verification is preproduction (3.2.5.3), revised re-heat treatment from being allowed twice to once (3.2.7), added cycle interruption requirements (3.2.8), clarified hardness (3.5.2), added rework and cycle interruptions to report/certification (4.7), and added note 8 to Table 3 stating tolerances for heat treatment temperatures.