YGH T series of roll rings

The new generation of YGH-T series of roll rings for high speed rolling of steel bars

As compared with conventional cemented carbide roll rings, the new generation of YGH-T series of rolls rings for high speed rolling of steel bars has a higher resistance to impact and thermal fatigue and a very high wear resistance as well.
The outstanding characteristics of YGH-T roll ring that are different from conventional cemented carbide roll rings in practical applications are as follows:

They are suitable for high speed bar rolling machines with a speed of above 100m/s. and it is not easy for them to result in cracks, breakage, groove aging and chips.
They can be used for rolling conventional steel bars, but also for high speed rolling of alloy steel bars.
There is a high volume of steel rolled per groove and little regrinding of the groove is needed after the rolling is finished.
They can be used for the rolling of conventional steel bars and alloy steel bars at a high speed and low temperatures.

Properties of grades for YGH-T series of rolls rings and related data

Grade	Chemical composition		Mechanical properties			Physical properties
Grade	Co+Ni %	WC %	Hardness HAR	T.R.S MPa	Density g/cm³	Sandvik	Cerametal	Sintermet
YGH10T	6	90	88	2250	14.90	H6T	CE65	SM80
YGH20T	12	88	86	2750	14.30			SM64
YGH30T	15	85	85	2800	14.00	H15C	CE79	SM59
YGH40T	18	82	83	2700	13.70		CE103	SM65
YGH50T	22	78	82	2700	13.40	H25P	CE112	SM61
YGH60T	30	70	79	2500	12.70	C30P	CE260	SM62

Recommended applications of grades for YGH-T series of roll rings

Grade	Recommended applications
YGH10T	Maximum hardness, excellent wears resistance in the series. Used in the last 1-2 stands of good high speed finishing mills for rolling common and hard steel bars.
YGH20T	Higher wear resistance, moderate impact resistance in the series. Used in the last 1-3 stands of good high speed finishing mills for rolling common and hard steel bars.
YGH30T	Moderate wear resistance and impact resistance, good for general purposes. Used in the last 1-4 stands or all stands of finishing mills.
YGH40T	Best for general purposes, used in the front stands of good mills and in the rear stands of common mills.
YGH50T	Used in the first and second stands of finishing mills and in the stands of pre-finishing rolling mills. For every stand of rolling lines for low speed rolling, low precision and unstable operation.
YGH60T	Maximum binder content in YGH series, good toughness and thermal crack resistance. Used in the stands of pre-finishing rolling mills and for roll rings for hot rolling of ribbed steel.

YGH T series of roll rings

The new generation of YGH-T series of roll rings for high speed rolling of steel bars

Properties of grades for YGH-T series of rolls rings and related data

Recommended applications of grades for YGH-T series of roll rings

Related Links