Rationale:
AMS4990D results from an update of this specification that adds composition analytical methods (3.1), prohibits unauthorized exceptions (3.9, 4.4.2), revises reporting (4.4) and identification (5.1), and adds purchaser responsibilities (8.7 and 8.9).
Related Topics:
Coatings, colorants, and finishes
Heat resistant materials
Titanium alloys
Alloys
Heat treatment
Wrought alloys
Tensile strength
Metals
Conductivity
Also known as: SAE AMS 4990
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