Question regarding the other steels used in a Lee Enfield

[kilopi505]

I have two sets of Spec's on Enfield steel.
S.A.F(Australian) and British O.F, the Oz spec's run from SAF 1 to SAF 11 and give the list of components for each.
The British spec's only give the analysis breakdown and need to be cross referenced against a known listing, such as the SAF series.

In OZ,BSS 5005/401 would equate to SAF No.7, BSS 5005/103 equates to SAF No.1 and DD8 equates to SAF No.7

Is the SAF mentioned here the Sandvik company of Sweden? Or is it an acronym for something else?

Edit:

Is SAF No.7 this ? Sanicro 70 — Sandvik Materials Technology


...and I can't find SAF No. 1 because all the names are changed, I think.