Tungsten Carbide Parabolic (Ballistic) Buttons

Tungsten carbide Parabolic (Ballistic) buttons used for insert drilling bit and cone bit. suitable for hard rock formations

Recommend grade list of tungsten carbide buttons:
Grade	Density	T.R.S	Hardness	Application recommended
Grade	(g/cm3)	( MPa)	(HRA)	Application recommended
YG6	14.95	≥1900	≥90.5	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.
YG8	14.8	≥2200	≥89.5	Used as a core drill, electric coal drill, coal cutter tooth, oil roller bit and scraper button bit.
YG8C	14.8	≥2400	≥88.5	Mainly used for small and medium-sized drill bit tooth, and as a rotating exploration drill bush.
YG11C	14.4	≥2700	≥86.5	Most used in the drill bit and rock bit used for cutting high hardness materials ball tooth.
YG13C	14.2	≥2850	≥86.5	mainly used for rotary drill bit used for cutting high hardness materials in ball mill.
YG15C	14	≥3000	≥85.5	Used in oil cone bit and soft in the hard rock digging cutting tools.
YK15	14.6	≥2450	≥87.6	Suitable to strips,conical buttons for rotary percussion-resistant geological prospecting 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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Unit：mm
Type	Dimension
Type	D	H	h	R1	R2	e
MD0912A	9	11.5	5.02	2.42	11	1.5
MD1222A	12	21.7	8.4	3	12	1.5
MD1320	13	20	8.7	3	30	1.5
MD1626	164	26	12	4.8	42.5	2
Recommended grade: YG6,YG8,YG10
Other grades and sizes can be offered by customers’requirements.

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