Smithells Metals Reference Book, Eighth Edition

The following tables of related designations are intended as a guide to alloy correspondence on the basis of chemical composition. The equivalents should not be taken as exact, and in all cases of doubt the relevant national specification or standard should be consulted. The tables do not represent an exhaustive list of all alloys available; the references listed at the end of the chapter are more complete sources.
In the case of the United Kingdom, France, and Germany, the tables refer to designations and standards that have recently been superseded by European (EN) and international (ISO) standards. The older standards have been referenced because the alloy designations are still in common use, and because the new standards use in some cases several different designations for chemically identical alloys, depending on the product form. A list of all designations is beyond the scope of this book; the references should be consulted for further details.
Table 1.1 lists designations for steels, with subsections for steels of different types. Designations for wrought aluminium alloys are listed in Table 1.2; cast aluminium alloys are shown in Table 22.2. Table 1.3 gives related copper alloy designations, subdivided into coppers, brasses, bronzes, and nickel silvers. Magnesium alloys cast and wrought are in Table 1.4. Related designations for nickel and titanium alloys are listed in Sections 22.5 and 22.6, respectively.
| Nominal composition | USA AISI/SAE ( UNS) | UK BS 970 ( En) | Germany DIN ( Wk. No. ) | Japan... |
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