The Chrysler Building is also well renowned and recognised for its terraced crown. Composed of seven radiating terraced arches, Van Alen's design of the crown is a cruciform groin vault constructed into seven concentric members with transitioning set-backs, mounted up one behind each other.[27] The stainless steel cladding was ribbed and riveted in a radiating pattern and had many triangular vaulted windows, transitioning into smaller segments of the seven narrow set-backs of the facade of the terraced crown. The entire crown is clad with silvery "Enduro KA-2" metal, an austenitic stainless steel developed in Germany by Krupp and marketed under the trade name "Nirosta" (A German acronym for "nichtrostender Stahl", meaning "rust-proof steel").
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