PIPES & TUBES-
CARBON STEEL
Most frequently used as manufactured in area with ASTM specifications A-106 & A-S3. The chemical compositions of these two materials is identical, both are subjected to physical test, but those for A-106 are more rigorous. A-106 are made in grade A & B. Grade B has higher strength properties but is less ductile and for this reason Grade A is permitted only for cold or close coiling. Wehn carbon steel is intended for use in welded construction at temperatures in excess of 427oC and its use in welded construction above this value should be with caution.
