Nov 3, 2006 #1 emonje Mechanical Nov 3, 2006 48 I've got to work with old drawing calling for "Si Mn st75" as material (steel, most probably) required. I have no idea what it is. Can please anyone help?
I've got to work with old drawing calling for "Si Mn st75" as material (steel, most probably) required. I have no idea what it is. Can please anyone help?
Nov 6, 2006 #2 rb1957 Aerospace Apr 15, 2005 16,002 my guess is 7075 ... it used to be called 75ST, but the Si-Mn might mean 6061 Upvote 0 Downvote
