Rationale:
AMS6477D is a Five-Year Review and update of this specification that revises composition analytical methods (3.1), macrostructure (3.3.1.1), decarburization (3.3.4.6, 3.3.4.7), and quality (3.4.1), prohibits unauthorized exceptions (3.6), and revises reporting (4.4.1, 4.4.4) and marking (5.2.1).
