Name: high quality cemented carbide coal drill piece
Brand: ZZCT
Availability: InStock

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Grade,properties and applications of cemented carbide for mining purpose
Grade	(g/cm) Density	(Mpa) T.R.S	(HRA) Hardness	Performance& application recommended	Equivalent to ISO
YC4C	14.8	≥1800	≥89.0	Mainly used as small buttons for percussion bits to cut soft and medium hard formations.
YC6	14.8	≥2150	≥90.0	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.	K15-K20
YC8	14.8	≥2320	≥89.5	For coring crowns, electric coal drill bits, coal cutting picks,cone drill bits and scraping knife bits, used in geological prospecting,coal mining and oil well boring.	K30
YK05	14.8	≥2500	≥90.5	Mostly used as the buttons for small and mediumsized bits to cut soft and medium hard formations.
YC8C	14.7	≥2400	≥88.5
YK15	14.6	≥2450	≥87.6	Suitable to strips,conical buttons for rotary percussion resistant geological prospeciting buttons,cut soft and medium hard formations.
YK20	14.4	≥2500	≥86.8	Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and very hard formations.
YK25	14.4	≥2550	≥87.2	Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard,hard and very hard formations.
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