Dear all Experts


I would like to know when to select normalized carbon steel for flange and roll plate . What the advantage of using normalized carbon steel?


Regards
Ethanhan

The "normalized" condition would normally have better mechanical properties than the "as-rolled" condition.
It may be necessary to order and/or use the normalized condition for e.g. following reasons:
1) the material specification will require it starting from certain thicknesses, e.g. SA-516 requires it for plates with thickness over 40 mm
2) you based the impact test analyisis on the normalized condition (material will be assigned a different curve B, C or D in e.g. Fig. UCS-66
3) because deformation (extreme fiber elongation) was so big that mechanical properties cannot be guaranteed any longer, and need to be restored somehow by a normalization, e.g. heavily deformed heads, ..

Selection of normalising is based on what kind of service you are in.

And advantage of normalising is the refinment of grains in carbon steel.

_________________
Niraj