SYMPOSIA PAPER Published: 01 January 1954

S-590 Alloy


S-590 is a precipitation-hardening alloy designed for service in the 1100 to 1400 F temperature range. Since it is a precipitation-hardening alloy, its optimum properties are obtained by a duplex heat treatment consisting of a high temperature or solution treatment followed by rapid cooling plus aging in the range of 1400 to 1500 F. Working in the temperature range of 1200 to 1500 F (often called hot-cold-working) frequently used to give additional strength to other high-temperature alloys is neither required nor recommended for S-590.

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Developed by Committee: E01
Pages: 99–114
DOI: 10.1520/STP46126S
ISBN-EB: 978-0-8031-6743-8
ISBN-13: 978-0-8031-6530-4