| we sell Mining button bit |
Normally grade suggestion
GradeDensity (g/cm3)Hardness
(HRA)TRS
(MPa)YG814.8089.52200YG8C14.8088.52400YG11C14.4087.002850YK0514.9590.52500YK1514.6087.62700YK2014.5287.32650YK2514.4087.22550Application recommended.
GradeApplications recommendedYG8 For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, used in geological
prospecting, coal mining and oil well boring.YG8C Mostly used as the buttons of small and medium sized ..... |
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