C: 0.05%-0.10% Si: 0.30%-0.60% Mn: 9.00%-10.0% P: 0.035% max S: 0.030% max Cr: 17.5%-18.5% Cu: 0.40% max Mo: 0.50% max Ni: 5.00%-6.00% N: 0.25%-0.32%