I've been riding a Waterford RS-22 built with Reynolds 953 for over five years (delivery was May, 2007) and am still on my honeymoon. It was my 65th birthday present.

953 is very strong and very dent resistant, even with a wall thickness as thin as 0.3mm. My 61cm frame weighs 3.6 pounds. I don't abuse it, but I don't baby it, either. It has yet to collect its first dent, and I put a couple of thousand miles a year on it in all kinds of weather. It's nice to finish a ride in the rain, wipe it down with a terrycloth towel, and not worry about rust. It still looks like it did the day I got it. The fork is chrome plated 531 since Reynolds wasn't producing 953 fork blades (I use Weigle's Frame Saver in the fork blades).

Carpenter Technology makes the 953 alloy for Reynolds; it's Carpenter Custom 455 alloy. 953 has an Ultimate Tensile Strength (UTS) of 1750-2050 MPa, a Yield Strength of 1500-1900 MPa, Elongation of 14%, Hardness of 44 HRC, and Stiffness Modulus (E) of 200 GPa.

I'm not sure I'd call it "poor man's titanium"...