Butonul carbură de tungsten

Grade	Equivalent To?ISO	Density (g/cm3)	HRA	T.R.S (Mpa)	Application
YC4C	?	14.8	>89.0	>1800	Mainly?used?as?small?buttons?for?precautions?bits?to?cut?soft?and?medium?hard?formations.
? YC6	? K15-K20	? 14.8	? >90.0	? >2150	For?coring?crowns,?electronic?coal?drill?bits,?coal?cutting?picks,? oil?cone?bits?and?scraping?knife?bits,?applied?in?geological?prospecting,?coal?mining?and?oil?well?boring.
? YC8	? K30	? 14.8	? >89.5	? >2320	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.
YK05	?	14.8	>90.5	>2500	Mostly?used?as?the?buttons?of?small?and?medium?sized?bits?to?drill?soft?and?medium?hard?formations.
YC8C	?	14.7	>88.5	>2400
? YK15	?	? 14.6	? >87.6	? >2450	Suitable?for?buttons?and?inserts?of?rotary?percussion?bits?to?cut?medium-hard?and?soft?formations.
? YK20	?	? 14.4	? >86.8	? >2500	Primarily?for?the?buttons?and?inserts?of?rotary?percussion?bits?to?cut?medium-hard?and?hard?formations.
? YK25	?	? 14.4	? >87.2	? >2550	Primarily?for?the?buttons?and?inserts?of?rotary?percussion?bits?to?cut?medium-hard?and?very?hard?formations.