S in S235JR steel plate represents structural steel, and 235 is the lower limit of yield strength.
S235JR steel plate is a European standard non-alloy structural steel, that is, carbon structural steel with low carbon content. S235JR steel plate is used for welding, bolt connection, riveting structure, etc. Carbon structural steel has a carbon content of about 0.05% to 0.70%, and some can be as high as 0.90%. Carbon structural steel can be divided into two types: ordinary carbon structural steel and high-quality carbon structural steel.
Chemical composition of S235JR steel plate:
S235JR steel plate C%: 0.17-0.19
S235JR steel plate Mn%: 0.14-0.15
S235JR steel plate P%: 0.035-0.045
S235JR steel plate S%: 0.035-0.045
S235JR steel plate N%: 0.012-0.14
S235JR steel plate Cu%: 0.40-0.45
S235JR steel plates are mainly used in railways, bridges, and various construction projects to manufacture various metal components that bear static loads, mechanical parts and general weldments that are not important and do not require heat treatment.
