Element           Si            Fe            Cu            Mn           Mg           Zn   Ti

Req.,%         6.7~7.5                                               0.25~0.45




Specimen location: 1# outer rim flange, 2# Inner rim flange, 3# disk rim transition
                               Yield
               Tensile                   Elongation
                            strength
           strength (Rm)                after fracture
                              (Rp0.2)
                                           (A), (%)
              (N/mm2)       (N/mm2)
Requireme
nt: 1# and
     2#
Requireme
   nt 3#