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    Section B.—Cast Heat-Resistant Alloys

    Published: 01 January 1950

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    Data in Section B cover the following types (the carbon content usually being higher than for similar corrosion-resistant alloys): 1. Straight chromium alloys with 26 to 30 per cent chromium and 7 per cent maximum nickel. 2. Chromium-nickel alloys with 18 to 32 per cent chromium and 8 to 22 per cent nickel; chromium always being in excess of nickel. 3. Nickel-chromium alloys with 10 to 21 per cent chromium and 33 to 68 per cent nickel. The detailed chemical compositions of alloys are given in Table XXXVIII and physical properties in Table XXXIX. The mechanical properties of the alloys at room temperature are shown in Table XL. It should be recognized, however, that room temperature data are of little use in estimating the behavior of the materials at high temperatures. Short-time and long-time elevated temperature properties are represented in Table XLI. Relative heat-resistant characteristics of the different grades appear in Table XLII. In this table the alloys are indicated to be excellent, good, fair, or poor in various types of application, based on the consensus of the alloy casting manufacturers. The data are included merely as a general guide; not as recommendations for specific uses.

    Committee/Subcommittee: A01.18

    DOI: 10.1520/STP47333S