How or what are these "fine grained" low carbon steels classified as? Are they available in structural shapes such as rectangular tubing, i-beam, channel etc...?
Can anyone steer me in the right direction for determining what would be minimum recommended temperature range for common low carbon steel?
For instance, what would be the recommended minimum temperature that one should use ASTM A500-Grade B tubing in?
I am somewhat familiar with the Charpy...
