Home > Cobalt MP35N AMS 5844
AMS 5844 is a sub-type specification of Cobalt M35N, a cobalt-based and non-magnetic alloy of the Multiphase family with a high percentage of nickel, chromium, and molybdenum. This specification shows outstanding corrosion resistance in many different solutions and environments.
These include chloride solutions, such as seawater and hydrogen sulfide. AMS 5844 is even resistant to mineral acids, such as nitric acid, hydrochloric acid, and sulphuric acid. The alloy shows excellent oxidation resistance at high temperatures and very good sulfidation resistance. Finally, AMS 5844 is characterized by an outstanding ultra-high-strength of 260 ksi to 300 ksi (1790 mPa to 2070 mPa). Tech Steel & Materials offers AMS 5844 as a bar.
AMS 5844 bars are produced using vacuum induction melting and consumable vacuum arc re-melting methods. The material is then solution heat-treated at 1900° F to 1925° F and aged for 4 to 8 hours. Unlike the AMS 5758 specification, AMS 5844 is already work-strengthened.
However, for the best tensile strength, an additional aging process of 4 hours at 1000° F to 1200° F (540° C to 650° C) is recommended. For best sulfide resistance, on the other hand, we recommend an additional aging process at 425° F (220° C).
Thanks to the plethora of positive qualities, AMS 5844 finds use in many fields, including Aircraft and Aerospace industries, Oil & Gas Industry, Chemical Industry, Marine Industry, and Food-Processing industry.
AMS 5844 Bar
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