Effect of Hydrostatic Retest on the Fatigue Behavior of a Steel Gas Cylinder

[+] Author and Article Information
G. S. Bhuyan, A. Akhtar, C. T. L. Webster

Materials Engineering, Powertech Labs Inc., Surrey, British Columbia, Canada

J. Pressure Vessel Technol 113(4), 556-559 (Nov 01, 1991) (4 pages) doi:10.1115/1.2928795 History: Received September 11, 1990; Revised April 23, 1991; Online June 17, 2008


Retardation effect of the hydrostatic test on the subsequent crack growth in an AISI 4130X steel gas cylinder has been predicted. The post-test retardation period depends upon the size of the crack; the smaller the crack size the larger the crack growth retardation period. The beneficial effect of the present recertification test, conducted at 5-yr interval at a pressure of 1.67 times the design service pressure, depends upon the number of pressure cycles incurred between retests.

Copyright © 1991 by The American Society of Mechanical Engineers
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