ASTM A572 grade 50 HSLA steel is suitable for application where there is need for more strength per unit of weight. Less of A572 grade 50 steel is needed to fulfill given strength requirements than is necessary with regular carbon steels. So it is with ASTM A572 grade 50 equivalent.
What is ASTM A572 grade 50 equivalent European standard? It is certain that the ASTM A572 grade 50 equivalent European standard should have close properties to A572 grade 50 steel:
Mechanical properties of ASTM A572 grade 50 steel:
Tensile:65 ksi min
Yield:50 ksi min
Elongation:16% min in 8" 19% min in 2" (for plates wider than 24")
The ASTM A572 grade 50 equivalent European standard is S355JR, whose strength is close to A572 grade 50 steel. ASTM A572 grade 50 equivalent European standard also has similiar application to A572 grade 50 steel, that is used in general construction and structural applications, such as marine engineering, hydro-carbon processing, heat exchangers, chemical processing, petrochemical plants, nuclear power projects, oil and gas equipment manufacturing, etc.