Martin Sch??n wrote:

:A2 and A4 are designations I am used to see here in Sweden.
:A4 is the stuff you want on a boat if you want to avoid rust.
:It is also very strong. A2 is not quite as stainless. If the
:difference is merely about looks or if there is more to it I don't
:know. I have to look it up.

:316 is an American designation I think. How it relates to A2 and A4
:I don't know. There are conversion tables that should tell you.

A2 is 304 -- 18% chromium, 10% nickel. A4 is 316, 18% chromium, 10%
nickel, 2% molybdenum.