K15 tungsten carbide bar hardness of not less than 91.5HRA, density is about 14.9g/cm³, mainly a mixture of tungsten carbide and cobalt powder metallurgy method adopted by milling, milling, pressing, sintering, and has good resistance to wear resistance and flexural strength. Both a high wear resistance and toughness, flexural strength of not less than 2100HRA. With WC amount within the range of 90% to 96%, the cobalt content is between 4% and 7%, the amount of titanium contained in the 0-1 percent plus or minus, containing tantalum amount ranging from 0% to 2% . Ingredients for different purposes in the long carbide tungsten carbide bar and cobalt are not consistent, the main component of tungsten carbide bar and cobalt alloys, using a very broad range.
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