Once quenched, you'll want to temper the blade. Right out of the quench bath, the steel is probably going to be very brittle. Let it cool until it's very warm to the touch, but cool enough to touch it and immediately put in in an kitchen oven (if you used motor oil, make sure all the oil is off the blade before putting t in the oven - courtesy of my wife).

I use 400F for A2 steel. I used 375 for the hacksaw blade since I didn't know what steel it was. I usually perform two cycles of an hour each and let it cool to room temperature after the first heat cycle before sticking it back in for the second. This tempering will give the blade "toughness" without sacrificing too much hardness. Again, tempering temperature is another variable that will (adversely or otherwise) affect the finished product.