Rationale:
OPTIONAL MATERIAL SPECIFICATIONS ADDED TO 4130 AND 4140 MATERIALS. OPTIONAL ZINC-NICKEL FINISH PER MIL-PRF-32647 K16 ADDED. QML NOTE UPDATED TO CURRENT VERBIAGE. EXPLANATION OF IDENTIFICATION NOTCHES ADDED TO NOTE 6. NEW NOTES 17 AND 18 ADDED.
Related Topics:
Corrosion resistant alloys
Finishing
Aluminum alloys
Titanium alloys
Heat treatment
Also known as: SAE AS 5179
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