YGH-T Cemented Carbide Roll Rings

1.The new generation of YGH-T cemented carbide 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 roll rings for high speed rolling of steel bars have a higher resistance to impact and thermal fatigue and a very high wear resistance as well.

The outstanding characteristics of YGH-T cemented carbide roll rings 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.

2.Properties of grades for YGH-T cemented carbide roll rings and related data

Grade Chemical composition Mechanical properties It can be used as a substitute for foreign cemented carbide grades for roll rings
Co+Ni % WC % Hardness HRA Density g/cm3 Transverse rupture strength(SampleB)MPa Sandvik Cerametal Sintermet
YGH10T 6 94 88 14.90 2250 H6T CE65 SM80
YGH20T 12 88 86 14.30 2750     SM64
YGH30T 15 85 85 14.00 2800 H15C CE79 SM59
YGH40T 18 82 83 13.70 2700   CE103 SM65
YGH50T 22 78 82 13.40 2700 H25P CE112 SM61
YGH60T 30 70 79 12.70 2500 C30P CE260 SM62

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