The symbolic designation of S235JR and S235JRG2 steel plate means:S- "Structural Grade" 235- minimum value of yield strength in MPa ( roughly 35 ksi) for thicknesses ut to 16 mm. JR- Base steel (Charpy impact test not obligatory, optional only) G2- Rimming steel not allowed. As structural steel, S235JR and S235JRG2 steel plate are mainly used in riveted, bolted, or welded construction of S235JRG2 Material S235JRG2C+C Equivalent, Meaning, Dec 14, 2019 · S235JRG2 material is a European standard non-alloy structural steel grade, a former designation in accordance with EN 10025-2:1993. S235JRG2C steel number is 1.0112 . This steel name has been discarded and replaced by S235JR in EN 10025-2:2004.