Building material S275JR S235JR S355JR mild iron metal steel sheet plate

S235JR/S275JR/S355JR are structural steels in the European EN 10025 standard, with yield strengths of 235/275/355MPa, widely used in building frames and mechanical manufacturing.

S235JR steel sheet is economical and practical, S275JR steel plate balances performance and cost, S355JR steel has stronger load-bearing capacity, and all three have good weldability and cold bending processability.

When selecting, it is necessary to consider the load requirements: S235JR mild steel for light structures, S275JR steel sheet for medium structures, and S355JR steel plate for heavy load-bearing structures.