Yep, but it has been my experience that the steel has to be just right. I have tried the back side of my case hunting knife (stainless blade) and a piece of flint will not generate sparks on it. The steel has to be hard because the harder the steel, the smaller and hotter the sparks. But I also have tried sparking on files, and they don't spark well either. So apparently it can't be too hard or too soft.
I have started a fire by striking the small sharpened back edge on my Ontario pilot survival knife with flint, but the Glock field knife I have won't spark as well.
A stainless blade does work just fine on a ferrochromium rod though.