① For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage points above the specified maximum for manganese is permitted, up to a maximum of 1.85 %.
② By agreement, the steel may be produced with titanium, in which case the minimum atuminum content shall not apply. When this option is exercised. the titanium content, by heal analysis, shall be 0.006 % to 0.03 %, and the actual titanium content shall be reported on the test report.