Tungsten steel, also known as cemented carbide, is a sintered composite material containing at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel.

Tungsten steel matrix consists of two parts: one part is hardened phase; The other part is bonding metal. Bonding metals are iron group metals, commonly used are cobalt and nickel. So there are tungsten-cobalt alloys and tungsten-nickel alloys.

Tungsten-containing steels, such as high-speed steel and some hot-working die steels, can significantly improve the hardness and heat resistance of steel, but the toughness will drop sharply.

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Tungsten steel jewelry consists of metal alloy \ tungsten carbide. Tungsten steel jewelry has high hardness, no wear, no deformation, no discoloration and no allergy. Every tungsten steel ring is cut and polished like a diamond with a diamond tool.

Tungsten steel rings are not as easy to process as ordinary jewelry because of their high hardness. Mohs hardness is 8.9-9. 1, which is four times that of 18K gold and four times that of titanium gold. I don't wear it in my daily life.

Tungsten steel jewelry products need to go through more than 30 processes of high temperature tempering, the temperature is as high as 1300℃, and the surface of tungsten steel jewelry is polished by hand to achieve mirror luster. Every qualified tungsten steel ornament is printed by laser and marked as qualified.

References:

Baidu encyclopedia-tungsten steel