Have you done a cut-and-bend test on it yet? The majority of gates are ornamental iron, not wrought iron. They are made in blacksmith shops and hammered/twisted. etc. but the metal is mild steel or iron bar/rod, not WI.
If you cut half way through a piece of WI and bend it to 90° it will tear in a fibrous way like a green stick of wood.
Just for the history buffs - WI was made popular in the 1870's by the new process of "puddling" which created the billets the iron was worked from. At the same time, the Bessemer process was developed. They coincided for about 30 years, but by then the cheaper and better steel from the Bessemer crucible process had almost completely replaced the puddling ovens. Wrought irons rein was only for about 30 to 50 years. Wrought iron held on in small usage until it was completely abandoned in 1970. Unless an object is between 100 and 150 years old, it is likely not wrought iron. The good news is they produces millions of tons of it during that time. The bad news is much of that was melted to make new steel in the wars and building boom from the 1920's to the 1950's. What remains today is "found" wrought iron from old bridges, grain elevators, the remains of old farm wagons, ... and such.