Photoresist Chemicals Iron alloy,base,Fe 71-77,Cr 21-25,C 0.8-1.2,Si 0.8-1.2,Mn 0.5-1,Ti 0.1-0.2 (100Kh23TL) Cas：59071-74-8 Molecular Formula：Iron alloy,base,Fe 71-77,Cr 21-25,C 0.8-1.2,Si 0.8-1.2,Mn 0.5-1,Ti 0.1-0.2 (100Kh23TL)