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Cemented carbide >>> Table of grades and properties of Cemented carbide roll rings and related data

Grade	Chemical compositon		Mechanical properties				Physical properties
	Co+Ni %	WC %	Hardness HRA	Transverse rupture strength (sample B)	Compressive strength Mpa	Young’s modulus of elasticity KN/mm²	Density g/cm³	Themal conductivity cal/cm sec/℃
YGH20	10	90	≥86.0	≥2500	3500	560	14.2～14.5	0.2
YGH25	12	88	≥84.0	≥2300	3400	550	14.0～14.3	0.21
YGH30	15	85	≥83.5	≥2520	3300	540	13.8～14.2	0.2
YGH40	18	82	≥83.0	≥2570	3200	500	13.4～13.9	0.19
YGH45	20	80	≥82.0	≥2570	3100	480	13.3～13.9	0.18
YGH55	26	74	≥81.0	≥2570	3000	450	12.6～13.2	0.17
YGR20	10	90	≥85.0	≥2400	3400	550	14.2～14.8	0.2
YGR25	12.5	87.5	≥83.0	≥2270	3300	540	14.0～14.3	0.22
YGR30	15	85	≥83.0	≥2360	3200	530	13.8～14.3	0.2
YGR40	18	82	≥82.0	≥2400	3200	430	13.5～13.9	0.2
YGR45	20	80	≥80.5	≥2250	3000	480	13.4～13.9	0.18
YGR55	25	75	≥79.0	≥2400	2800	420	12.9～13.4	0.17
YGR60	30	70	≥78.5	≥2200	2600	300	12.6～13.1	0.16