Riatanasan Stuthan
Tha stuth an diosc breic a’ gabhail ri inbhe iarann liath 250 na dùthcha agam, ris an canar HT250, a tha co-ionann ris an inbhe Ameireaganach G3000. Is iad na riatanasan airson nan trì prìomh eileamaidean den cho-dhèanamh ceimigeach: C: 3.1∽3.4 Si: 1.9∽2.3 Mn: 0.6∽0.9. Riatanasan coileanaidh meacanaigeach: neart tensile>=206MPa, neart lùbadh>=1000MPa, claonadh>=5.1mm, riatanasan cruas eadar: 187∽241HBS.