The effect of sulfur on the fracture of CrNiMoS steel at low temperatures

Sulfur, whose solubility in ferrite at room and subzero temperatures is low, is present in steel in the form of nonmetallic inclusions (sulfides and oxysulfides), the type and nature of which are determined by the final deoxidizing treatment. The nature and quantity of nonmetallic inclusions have a marked effect on such mechanical properties of steel as, , anda _i 1–3].