View Single Post
  #2   Report Post  
Posted to uk.d-i-y
Ian Stirling Ian Stirling is offline
external usenet poster
 
Posts: 519
Default Is tube stiffer than bar?

T i m wrote:
Hi All,


Beeeg snip

Of the same material, exterior dimensions, and conditioning - no.
For the same weight, given the above, yes.

An important thing to know is that all steels have the same amount of
springyness - pretty much, up to a limit, depending on the alloying, and
heat treatment.
Once it gets past this limit for mild steel, it starts to bend
permenantly.
The key to better steels is that they will bend permenantly only at
higher loads.