Carbon (C): 0.17% maximum

Manganese (Mn): 1.4% maximum

Phosphorus (P): 0.025% maximum

Sulfur (S): 0.025% maximum

Silicon (Si): 0.5% maximum

Additionally, this steel grade can be alloyed with copper (Cu), nickel (Ni), and chromium (Cr) to enhance its properties such as strength, toughness, and corrosion resistance. The exact composition of these alloying elements can vary depending on the specific application for which the steel is intended.