Published: 01 January 1950
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Data on the wrought chromium ferritic steels appear in Section A of Part I, and cover the following basic compositions: 4 to 6 per cent chromium, 8 to 10 per cent chromium, 10 to 14 per cent chromium, 14 to 18 per cent chromium, and 23 to 30 per cent chromium. The detailed chemical compositions of these steels appear in Table I. Information as to their physical properties, and on the forging and heat-treating practices to be used in fabricating these chromium steels is given in Table II. The mechanical properties of the steels in various wrought forms, such as bars, plates, wire, strip, sheet, and seamless tubes, forgings, etc., are shown in Tables III to XVIII. The creep characteristics and short-time tensile properties at elevated temperatures are presented graphically by the curves in Figs. 1 to 11.