① Tungsten-cobalt carbide
Primarily composed of tungsten carbide (WC) and binder of cobalt (Co).
Its grades are from "YG" ("hard, cobalt" Word Hanyu Pinyin initial letter) and the percentage composition of the average level of cobalt.
For example, YG8 that represents average WCo=8%, the rest being tungsten carbide tungsten-cobalt Carbide.
Tungsten-cobalt alloys are mainly applied in General: carbide tools, molds and mineral products.
② Cobalt tungsten titanium carbide
Primarily composed of tungsten carbide, titanium carbide (TiC) and cobalt. Their grades from "YT" ("hard, Titanium" Word Hanyu Pinyin initial letter) and the average content of titanium carbide composition.
For example, YT15 that represents average TiC=15%, the rest is tungsten carbide and cobalt content in cobalt tungsten titanium Carbide.
③ Titanium-tantalum-tungsten (NB) carbide
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Primarily composed of tungsten carbide, titanium carbide, tantalum carbide (or niobium carbide), and cobalt. This type of cemented carbide, also known as universal or universal carbide cemented carbide.
Their grades from "YW" ("hard" or "Wan" Word Hanyu Pinyin) with sequence number, such as YW1.
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