Yordo, I have only been pounding on hot steel for about 7 months but I have managed to acquire a whole bunch of good things to use as an anvil including RR track, RR coupler knuckles, some sort of RR connector beam, and a few other things but the one that moved hot steel the fastest was this crusher hammer head that weighs around 65-70 lbs. It is some sort of stainless and has a nice flat area with significant mass underneath it and a nice round area for drawing out and you can flip it over for another useful shape or use the hole for drifting or whatever else. I got it at the scrapyard and I've since seen a few heavier ones. Great starter anvil!