Propriétés et ténacité aciers faiblement alliés utilisés dans les industries chimique et nucléaire^*

Toughness and mechanical properties of steels employed in nuclear and chemical industries

Membre de l’Académie des Sciences Tchécoslovaque Ecole des Mines, Ostrava (Tchécoslovaquie)

Abstract

To increase security and reliability of installations, a good knowledge of mechanical and metallurgical properties of steels used to build pressured apparatus (tanks) is necessary, specially their toughness, measured on test-pieces of sufficient size.

This article compares toughness results between thin test-pieces taken out of different points of a section, and thick test-pieces representing the real section of an important structure.

The author also gives toughness values concerning welded joints, after the same heat treatment than the real iron piece.