Grade S355JR has a minimum yield strength of 355 MPa.
The impact energy at a room temperature of 20°C is at least 27 joules.
With a minimum yield strength of 50 ksi, EN structural steel S355JR meets requirements in chemistry and physical properties similar to ASTM material A572 Grade 50.
That is to say, EN structural steel S355JR equivalent ASTM material is A572 Grade 50.
S355JR is particularly suitable for applications that require good impact resistance at low temperatures, such as in Arctic or sub-zero environments.
S355J0, on the other hand, is more commonly used in applications that require high strength but do not require good impact resistance at low temperatures.