Mixing of steel with other substances (usually various other metals) to modify its properties.
(p. pr. & vb. n.) of Alloy
In England the following standards are used for plate and jewelry: 375, 500, 62 5, 75 0 and 916.6, corresponding to 9, 12, 15, 18 and 22 carats, the alloying metals being silver and copper in varying proportions.