STEEL BELT COMPRISING MARTENSITIC STEEL AND METHOD FOR MANUFACTURING HOOP FOR CONTINUOUSLY VARIABLE TRANSMISSION USING SAID STEEL BELT

摘要

A steel strip made of martensitic steel contains C+N at not more than 0.12wt %, Si at not more than 1wt %, Mn at not more than 7wt %, Ni at 2 to 24wt % , Cr at 2 to 16wt%, Mo at not more than 2.5wt%, and Ni-Bal value and Ms value defined by the following equations shown by weight percentage of each composition are respectively Ni-Bal/=1.2, Ms /=-28. DFNi-Bal=Ni+0.5Mn+30(C+N)-1.1(Cr+1.5Si) +8.2 /DF DFMs=502-810C-1230N-13Mn-30Ni-12Cr-54Cu-46Mo /DF IMAGE