Hello Moth,
I don't own a Santa-fe so I cant be specific, but the following general points come to mind.
Judging by the lack of response to your post, and the numbers of good reports we get of the SantFe on the forum, I don't think clutch failures are normally a problem. so the standard discs are probably plenty durable enough.
Some clutch linkages are adjustable, perhaps yours only needs adjusting?
Clearly I don't know how you drive or what use the Hyundai is put too, but I have seen premature clutch failure on other vehicles when drivers slip clutches a lot for example when pulling away or changing gear and not matching engine speed to gearbox speed adequately needing the clutch to be slipped.
Also where the driver rests their foot on the clutch pedal when driving normally. The slight pressure on the pedal reduces the pressure on the clutch plate which can lead to some slippage which will get worse, and wear or failure of the release bearing.
These are both fairly common problems with new or inexperienced drivers, but I have also seen older drivers doing it as well.