Help identifying this frame
Well the wheels, chainring, cranks, chain, singlespeed thing, and single front brake are all non-original.   I'd even suspect the headset has been replaced - it looks far too new.

I'm going to guess its a Raleigh or otherwise English frame from the 80s.  Here's my old 1981 Raleigh Arena, and while the lug cuts are different, the seat stay caps look very similar.


Also, one of the main similarities is the rear brake bridge, which is a plate of metal welded to the seat stays where a nicer bike would have a more-elegant brake bridge.



So no its not exactly this bike, but its this era and down at the lower end of the price range.

I'd be surprised if its chromolly steel - that always feels surprisingly light for a steel bike.