Rationale:
AMS4991G results from a Five-Year Review and update of this specification with changes to update general agreement language related to prohibiting unauthorized exceptions (8.4), relocate definitions (2.3), update applicable documents (Section 2), thermal processing (3.5), and allow the use of the immediate prior specification revision (8.3).
Related Topics:
Titanium alloys
Heat treatment
Tensile strength
Casting
Conductivity
Metals
Alloys
Identification numbers
Production control
Heat transfer
Also known as: SAE AMS 4991
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