Creep-Rupture Properties of 1.25 Cr–0.5 Mo Steel After Service at 1000 Deg F

[+] Author and Article Information
T. M. Cullen

University of Michigan, Ann Arbor, Mich.

I. A. Rohrig

General Engineering Department, The Detroit Edison Company, Detroit, Mich.

J. W. Freeman

Chemical and Metallurgical Engineering, University of Michigan, Ann Arbor, Mich.

J. Basic Eng 88(3), 669-672 (Sep 01, 1966) (4 pages) doi:10.1115/1.3645932 History: Received August 02, 1965; Online November 03, 2011


Specimens of 1.25 Cr–0.5 Mo steel which had been exposed for prolonged times at 1000 F under ASME Boiler and Pressure Vessel Code allowable stresses were rupture tested in order to evaluate the influence of service on subsequent elevated-temperature properties. Specimens were tested as-removed from service and after reheat-treatment. The prolonged service drastically reduced short-time rupture properties but did not have any significant influence on the expected long-time rupture strength. Reheat-treatment restored the short-time strength to a high level.

Copyright © 1966 by ASME
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