Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Units of fineness - Karat.
The fineness of gold in coins, bars or jewelry is commonly measured in "karat" - parts per 24 - where
24 karat = 24/24 = 1 = 100 % = 1000.00 o/ oo 18 karat = 18/24 = 0.75 = 75 % = 750.00 o/ oo 14 karat = 14/24 = 0.583 = 58.3 % = 583.33 o/ oo 8 karat = 8/24 = 0.333 = 33.3 % = 333.33 o/ oo
Pure gold is yellow in color. Gold is commonly alloyed with silver, copper, nickel and zinc. White gold is an alloy with nickel, copper and zinc. Note that
24 karat gold - 100% - very soft, not recommended for jewelry 22 karat gold - 91.7% - soft, not recommended for jewelry 18 karat gold - 75% - recommended for fine jewelry 14 karat gold - 58.3% - used in average jewelry 12 karat gold - 50% - not acceptable in jewelry 10 karat gold - 41.7% - the lowest limit for products in "real" gold
Download and print Karat vs. Pure Gold Content Chart Related Topics Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more. Related Documents Specific gravity for common solids and metals like aluminum, asbestos, brass, calcium and many others. Weight unit for preciuos metals like gold and silver. Common converting units for Acceleration, Area, Density, Energy, Energy per unit mass, Force, Heat flow rate, Heat flux, Heat generation per unit volume and many more.
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