What is the chemical composition of 304 stainless steel?

Core elements:
Chromium (Cr) accounts for 18% -20% and nickel (Ni) accounts for 8% -10.5%, forming a corrosion-resistant foundation.

Strengthening elements:
Manganese (Mn) ≤ 2.0%, silicon (Si) ≤ 1.0%, improve strength and processability.

Impurity control:
Carbon (C) ≤ 0.08% (low carbon), sulfur (S) ≤ 0.03%, phosphorus (P) ≤ 0.045%.

Matrix composition:
Iron (Fe) accounts for 74% -80% and is the main component of the alloy.