Light metal

A light metal is any metal of relatively low density.[1] More specific definitions have been proposed; none have obtained widespread acceptance. Magnesium, aluminium and titanium are light metals of significant commercial importance.[2] Their densities of 1.7, 2.7 and 4.5 g/cm3 range from 19 to 56% of the densities of the older structural metals,[3] iron (7.9) and copper (8.9).

Light metals
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Metals and metalloids
with a density < 5 g/cm3
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See also

References
  1. Jackson JA, Mehl JP, Neuendorf KKE (eds) 2005, Glossary of Geology, 5th ed., American Geological Institute, Alexandria, ISBN 0-922152-76-4, p. 371
  2. Brandes EA & Brook GB (eds) 1998, Light Metals Handbook, Butterworth Heinemann, Oxford, ISBN 0-7506-3625-4, p. viii
  3. Polmear I 2006, Light Alloys: From Traditional Alloys to Nanocrystals, 4th ed., Butterworth Heinemann, Oxford, ISBN 0-7506-6371-5, p. 1
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