Most valuable metal A valuable metal is a rare metallic chemical element of high economic value. In metal identification , the valuable metals are less unthinking than most elements, have high shine, and have higher melting points than other metals. Historically, valuable metals were important as currency, but are now regarded mainly as investment and […]

Metal properties Chemical properties The largest part metals in metal identification are chemically reactive, reacting with oxygen in the air to form oxides over shifting timescales (for illustration iron rusts over years and potassium burns in seconds). The alkali metals react quickest followed by the alkaline earth metals, found in the leftmost two groups of […]

Classes of metals Ferrous and non-ferrous metals Other way of classifying metals is by their content, and one common splitting up is into ferrous metals and non-ferrous metals. The word ferrous is originated from the Latin “Ferrum” which means “containing iron”, thus ferrous metals contain iron and non ferrous metals do not. Ferrous metals may […]

Metal Trade and Production In Metal Trade and Production, metallurgy is focusing with the production of metallic works and metal identification for use in consumer or engineering products. This involves the production of alloys, the shaping, the heat treatment and the surface treatment of the product. The job of the metallurgist is to attain design […]

Iron based metal Cast iron Cast iron usually refers to grey cast iron, but identifies a large group of ferrous alloys, which harden with a eutectic. In metal identification iron accounts for more than 95%, while the main alloy elements are carbon and silicon. The quantity of carbon in cast irons is the range 2.1 […]