Packaging DetailsPhysical Property Color: The beauty of the golden color can be compared with the sun, When gold is melted from the steam is green, It in the process of smelting gold is usually brown, If moulds a thin slice of it, it can transmit more green light. malleability: Unusually strong. One ounce of gold can be pull in 50 steadily, its extension makes it easy casting, is a manufacturer of jewelry is good choice. Gold is the strongest force in the metal forgeability: Supreme. Can cause a very thin easy to roll up the piece of gold. 1 oz gold hammer can be thin to 4 million per 1 feet thick and 100 square feet area is large. Gold color is golden yellow, metal luster, no cleavage. Hardness is 2 to 3, 19.3, of pure gold melting point is 1064.4 °C; Good ductility, can be pressed into thin foil, high heat resistance and electrical conductivity, the resistance of the pure gold of 2.4 p. Has good resistance to chemical corrosion, of pure gold is one of the best plating material. Gold as a precious metal, has the good physical properties, the "true gold fears not the fire" is refers to under general flame gold does not melt easily. Density is big, feel ChenDian. Good toughness and ductility, good conductivity. Gold has a bright yellow, but color change is bigger, after mixed with other metals such as gold, copper alloy is dark red, silver alloy is pale yellow or gray. Gold is easy to be ground into powder, which is also the cause of gold are dispersed in the nature, the pure gold jewelry is easy to wear and reduce weight. Gold is a very soft metal, but less than two metals, lead and tin use nails can trace on pure gold, the softness that gold is easy to processing, but this is for the maker of the ornament, and it's not ideal, because it is easy to make ornaments rub and make it lose its luster that affect beautiful. So when made of gold jewelry, usually to add copper and silver, in order to improve the hardness. Gold easy to forge, easy to extend, it can be crushed into thickness is 0.001 mm, transparent and green gold foil. 0.5 gram of gold can be into a 160 - meter gold.
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