St37-2 steel is a carbon structural steel that is widely used in the construction and engineering industries. Its equivalent grades are:
ASTM A36
JIS SS400
DIN 17100 St37-2
EN S235JR
These grades have similar chemical compositions and mechanical properties to St37-2, making them suitable substitutes for each other in many applications. However, it's important to note that there may be slight differences in composition or performance depending on the specific standard being followed. It's always recommended to consult with a qualified engineer or materials specialist to ensure the proper selection of materials for a given application.