So does anyone know of a type of steel that can be purchased that is straight and clean. I know cold roll flat bar is really good stuff, but what about square tube?
--- Leslie Watts <[EMAIL PROTECTED]> wrote: > > Hi Hal > > I won't quarrel with your figures...they seem about right. > > The issue is the definition of specific stiffness... > > Steel has about three times the modulus of aluminum, but it is also > three > times the density! > > Specific stiffness is the ratio of those two parameters, so they are > about > the same. > > This is true for most alloys, hardened or unhardened. > > One way to think of it is an identically dimensioned bar of different > materials. > > The material with the highest specific stiffness will ring with the > highest > note when struck. > > FYI the highest specific stiffness of the common metals is beryllium. > > OK? :) > > Les ===== Check out my APRS digipeater: http://map.findu.com/FIELDR __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
