Tungsten gold means that tungsten gold is called tungsten carbide alloy, and it is also called tungsten steel in industrial field. Tungsten gold is the hardest metal in the world, with a hardness of 8-9m (Mohs hardness standard), second only to diamond (10M). Tungsten is a rare metal. Tungsten ore is extracted into tungsten powder with purity of 60% or 90% through mining, grinding, gravity separation and refining, and then refined and shaped by high temperature electric furnace to make finished tungsten rod. The melting point of tungsten rod is about 3500℃. At present, tungsten mines are mainly distributed in China and Russian. Usually, the purity of tungsten rods should be above 99.95%, and inspection and analysis reports from authoritative organizations, such as the National Nonferrous Metals and Electronic Materials Analysis and Testing Center or internationally recognized SGS, must be issued.

Main uses of metallic tungsten

1. Machining tool bits of vehicles, tungsten wires of lighting equipment and various heat conductors; 2. Ingredients for manufacturing crankshafts and cylinders of advanced automobiles, and ingredients for casting various special steels; 3. Widely used in manufacturing guns, cannons, rockets, satellites, planes and ships. 4. Making jewelry and other popular accessories.

Tungsten bar specification

According to GB/T 3459-2006 Tungsten Bar, which was implemented in June 2006 1 65438+1October1,the dimension of tungsten bar is TW-2: (10-16) mm. =300)mm TW- 1、TW-4:( 10- 16)mm *( 10- 16)mm *(& gt； =30) Millimeter tungsten rod size: TW-2: diameter (16-30) mm * *>；; =300)mm, the bending degree is not more than 4mm TW- 1, TW-4: diameter (16-30) mm * (> =30)mm As for the packing method, it is stipulated again, but the weight in each package is not stipulated. Usually 8- 12 pieces are packed in a small box.

To be exact, tungsten gold, like gold and silver, is a symbol of identity. At present, the domestic Saiya skirt brand tungsten and gold products are quite influential, with the characteristics of never wearing, never fading, hardness second only to diamonds, and no scratches.