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This is a list of named alloys grouped alphabetically by the metal with the highest percentage. Within these headings, the alloys are also grouped alphabetically. Some of the main alloying elements are optionally listed after the alloy names.
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Zamak alloys are part of the zinc aluminium alloy family; they are distinguished from the other ZA alloys because of their constant 4% aluminium composition. [ 2 ] The name zamak is an acronym of the German names for the metals of which the alloys are composed: Zink (zinc), Aluminium , Magnesium and Kupfer (copper). [ 2 ]
The oldest known pills were made of the zinc carbonates hydrozincite and smithsonite. The pills were used for sore eyes and were found aboard the Roman ship Relitto del Pozzino, wrecked in 140 BC. [79] [80] The Berne zinc tablet is a votive plaque dating to Roman Gaul made of an alloy that is mostly zinc. [81]
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Toy road roller cast from zinc. Pot metal (or monkey metal) is an alloy of low-melting point metals that manufacturers use to make fast, inexpensive castings. The term "pot metal" came about because of automobile factories' practice in the early 20th century of gathering up non-ferrous metal scraps from the manufacturing processes and melting them in one pot to form into cast products.
Tombac, or tombak, is a brass alloy with high copper content and 5–20% zinc content. [1] Tin , lead or arsenic may be added for colouration. [ 2 ] [ 3 ] It is a cheap malleable alloy mainly used for medals , ornament , decoration and some munitions .
ZA alloys make good bearings because their final composition includes hard eutectic zinc-aluminium-copper particles embedded in a softer zinc-aluminium matrix. The hard particles provide a low-friction bearing surface, while the softer material wears back to provide space for lubricant to flow, similar to Babbitt metal .