AfterShaver;

I was wondering the same thing if the Russian steel was some sort of re-cycled or reclaimed steel. I am not a metallurgist but it would seem that this Russian steel has a higher chromium and or vanadium content. This would make it more like“stain-less” steel. It behaved better on my Charnley Forest hone than on any of my J-nats to approach finish. However my CF is not my final finisher.
The only other razor I have had a challenge honing is a Tamahagane steel Iwasaki kamisori. And that could be partly because of the blade profile. I can only assume the Russians do no go through the same painstaking process of creating a bloom of steel like the Japanese Tamahagane. Whatever the composition of the Russian steel is, it is very tough stuff. It should hold an edge a loooong time.
Mike