This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings in the solution heat treated condition up to 8.0 inches (203 mm) in diameter or least distance between parallel sides, and stock of any size for forging, flash welded rings, or heading (see 8.4).
AMS5643W prohibits unauthorized exceptions (3.8, 220.127.116.11.1,8.9, 8.10), revises composition (3.1) to replace obsolete chemical analysis standards, updates finish categories (18.104.22.168, 8.10), updates heat treatment specification (3.3.1), deletes requirement for CEO approval of heat treatment test (22.214.171.124), adds strain rate for tensile tests (126.96.36.199.1.1), updates requirements for product stock testing (188.8.131.52.2, 184.108.40.206.3), adds quality requirements of AS1182 (3.5.2, 8.8), changes microstructure from acceptance to periodic (220.127.116.11, 4.2.2, 4.4.1), and results from a Five-Year Review and update of this specification.
Coatings, colorants, and finishes
Corrosion resistant alloys
Also known as: SAE AMS 5643
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