08230 A Pure Ternary High Molybedenum Containing Ni-Cr-Mo Alloy N06059 (Alloy 59), Provides Reliable Solutions to Various Maintenance & Corrosion Problems in Naval/Marine Applications

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Product Number: 51300-08230-SG

ISBN: 08230 2008 CP

Author: Dinesh C. Agarwal

Publication Date: 2008

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US Navy uses many metallic materials such as carbon steel, stainless steels, nickel alloys, copper alloys, titanium & aluminum alloys in their ships. Some of the major concerns are pitting/crevice corrosion, stress corrosion cracking, hydrogen embrittlement, ability to weld repair small worn and corroded areas, prevention of galvanic corrosion and reliable usage of high strength fasteners. Even though several stainless steels and nickel-based alloys have shown promise and are used in marine environments, under very severe crevice corrosion conditions, most of these have suffered from localized crevice attack, including high alloys like alloy 625 and alloy C-276. Fasteners of alloy K-500 have failed due to stress corrosion cracking. Alloy 718 fasteners suffer from localized attack. The search for alloys that are essentially immune to crevice corrosion attack in marine environments and provide reliable high strength fasteners for replacing K-500 fasteners , led the US Navy to consider Ni- Cr-Mo alloys with the highest combination of chromium and molybdenum in a nickel matrix.