X2CrMnNiN17-7-5 or 1.4371
C: 0.030% max Si: 1.00% max Mn: 6.00%-8.00% P: 0.045% max S: 0.015% max Cr: 16.0%-17.0% Ni: 3.50%-5.50% N: 0.15%-0.20%