S indicates a structural steel; 275 indicates that the yield strength is 275MPa; J0 refers to the impact energy test temperature of 0 degrees Celsius, and JR refers to the impact energy test temperature of 20 degrees Celsius.
S275J0 steel plate and S275JR steel plate are not the same material. S275J0 steel plate and S275JR steel plate are the same series of S275 carbon structural steel, and the chemical element composition of S275J0 steel plate and S275JR steel plate is different.
The biggest difference between S275J0 steel plate and S275JR steel plate is that the impact temperature of S275J0 steel plate and S275JR steel plate is different. The impact temperature of S275J0 steel plate is 0°C, and the impact temperature of S275JR steel plate is 20°C.
Mechanical properties of S275JR steel plate
Yield strength ReH(MPa)≥255
Tensile strength Rm (MPa) 410 ~ 580
Elongation A(%): ≥19
Shock temperature 20°C
Impact energy Akv(J): ≥27
Mechanical properties of S275J0 steel plate
Yield strength ReH(MPa)≥255
Tensile strength Rm (MPa): 410 ~ 560
Elongation A(%): ≥20
Shock temperature 0°C
Impact energy Akv(J): ≥27
