I am of the opinion that scalping has more to do more with the amount of ticks or points and less to do with the time. I consider 1 to 8 points in the ES as a scalp. Especially, if it is a one legged move. If two legs then I generally consider it an intraday swing scalp. It can happen in 5 minutes or it can happen in one hour. One tick is a scalp. Two ticks are a scalp. One point is a scalp.... For me 4 points is a scalp. It may occur over 2 min or it may take 20 minutes. I still consider it a scalp. On volatile days I even consider 12 points to be a scalp.
I know it is perhaps not the traditional definition of a scalp but it is my definition and I am anything but traditional! For myself I am not interested in taking a scalp less than a point. Even though 2 ticks is a scalp I consider only taking trades that I believe will render me at least a 1 point profit. One point is my minimum scalp.
Therefore, if I take a trade and it took 3 hours to render me a 4 point profit I consider that trade to be a scalp. Granted that would be very unusual but still I see it as a scalp. On the other hand I may capture 4 points within 2 minutes of entering the trade. That too is a scalp, for me.
I know it is perhaps not the traditional definition of a scalp but it is my definition and I am anything but traditional! For myself I am not interested in taking a scalp less than a point. Even though 2 ticks is a scalp I consider only taking trades that I believe will render me at least a 1 point profit. One point is my minimum scalp.
Therefore, if I take a trade and it took 3 hours to render me a 4 point profit I consider that trade to be a scalp. Granted that would be very unusual but still I see it as a scalp. On the other hand I may capture 4 points within 2 minutes of entering the trade. That too is a scalp, for me.

