Nickel-Aluminum-Bronze, Martensitic, Sand, Centrifugal and Continuous Castings, 78Cu - 11Al - 5.1Ni - 4.8Fe, Quench Hardened and Temper Annealed
This specification covers a nickel-aluminum bronze alloy in the form of sand or centrifugal castings. These castings have been used typically for parts requiring a combination of high strength and hardness with some ductility and toughness, but usage is not limited to such applications.
Rationale: AMS4881D revises form to permit use of continuous castings, clarifies when use of tensile specimens machined from casting is required (3.4.2, 220.127.116.11, 18.104.22.168.3, 4.2.1, 22.214.171.124), revises hardness (126.96.36.199), and updates wording for permissible welding of castings (188.8.131.52).
Also known as: SAE AMS 4881
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