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This page was last edited on 6 February 2025, at 11:20 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
In metallurgy, non-ferrous metals are metals or alloys that do not contain iron (allotropes of iron, ferrite, and so on) in appreciable amounts.. Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), [1] non-magnetic properties or resistance to corrosion (e.g. zinc). [2]
By the above periods metalworkers were very skilled at creating objects of adornment, religious artifacts, and trade instruments of precious metals (non-ferrous), as well as weaponry usually of ferrous metals and/or alloys. These skills were well executed.
An alternative in metallurgy is to consider various malleable alloys such as steel, aluminium alloys and similar as metals, and other materials as nonmetals; [20] fabricating metals is termed metalworking, [21] but there is no corresponding term for nonmetals. A loose definition such as this is often the common usage, but can also be inaccurate.
The global jewelry market size was valued at USD 353.26 billion in 2023 and is expected to grow at a compound annual growth rate (CAGR) of 4.7% from 2024 to 2030. [ 86 ] As of 2022, the global jewelry market was valued at approximately $270 billion and is projected to grow to over $330 billion by 2026.
Its thermal conductivity (2,200 W/m•K) is five times greater than the most conductive metal (Ag at 429); 300 times higher than the least conductive metal (Pu at 6.74); and nearly 4,000 times that of water (0.58) and 100,000 times that of air (0.0224). This high thermal conductivity is used by jewelers and gemologists to separate diamonds from ...
A noble metal is ordinarily regarded as a ... Many of the noble metals are used in alloys for jewelry or coinage. ... and for some of those of the non-noble metals ...
Art jewelry is one of the names given to jewelry created by studio craftspeople in recent decades. As the name suggests, art jewelry emphasizes creative expression and design, and is characterized by the use of a variety of materials, often commonplace or of low economic value. In this sense, it forms a counterbalance to the use of "precious ...