Steel grade S355JR is used to manufacture hot-rolled flat and long products, which are subsequently used when producing steel building structures. Classification: Non-alloy structural steel. Products: Flat and long products, semi-finished products. Chemical composition of ladle sample of steel S355JR in accordance with EN 10025-2, % С. Si. Mn. P. S. N. Cu. ≤ 0,24. ≤ 0.55. ≤ 1.60. ≤ 0 …