Izinga elijwayelekile: 9Cr2Mo, Cr5MoV, insimbi yokuphosa ephezulu ye-chromium (njengoba kuyi-Cr12MoV). Ngokwesibonelo, ku-Cr5 ama-rolled rolls abandayo, okuqukethwe kwe-chromium kukhuphuka kube ngu-5%, uhlobo lwe-carbide luguquka lube ngu-M3C kuya ku-M7C3, ukumelana nokugqoka kuphindwe kabili kunokwe-Cr2, futhi ububanzi be-hardened layer bungama-≥45mm. Inokumelana okuhle kakhulu nokugqoka kanye nokukhathala. Ngokwezinga le-American ASTM A427, ihlukaniswa njenge-Class 3 futhi isetshenziswa ekuphakamiseni kwe-aluminium foil enembile. Isetshenziswa kabanzi ekuphakamiseni kwe-steel rolls yezikhwama zezimoto nezikhwama zezingxenye zasekhaya.

Cr6 cold-rolled rolls, with chromium content increased to 6%, further enhance wear resistance and are suitable for high-load rolling (such as stainless steel and electrical steel).