Try and see if Simons Saw Co. still sells steel.
They had the finest fine grained steel for making saw blades, it was even hardened to the right Rockwell for saws.
I use to buy from them all sorts of tool steels.
I have a two man crosscut saw made by them about 90 years ago,
looks brand new (sold to me as NOS) cuts like hell though butter.
A leg would be of in half the saw length.
That saw is for when the gasoline runs out for the chain saws. Bought it about 30 years ago.