1. metallide pingekorrosioonpragunemist leeliselises lahuses tähistav ajalooline termin; 2. süsinik- ja Cr-Ni-teraste pragunemine seisutamisel leeliselises vesilahuses temperatuuridel 200-250 oC (vrd söövitushaprumine), 1. a hystorical term denoting stress corrosion cracking of steel exposed to alkaline solutions; 2. intergranular cracking of carbon steel or Fe-C-Ni alloy exposed to an aqueous caustic solution at temperatures 200-250oC (compare: acid embrittlement)