铸件尺寸公差数值(GB/T 6414-1999)表1铸件尺寸公差数值 mm基本尺寸公差等级CT大于至345678910111213141516100.180.260.360.520.741.01.52.02.84.210160.200.280.380.540.781.11.62.23.04.416250.220.300.420.580.821.21.72.43.24.668101225400.240.320.460.640.901.31.82.63.65.079111440630.260.360.500.701.01.42.02.84.05.68101216631000.280.400.560.781.11.62.23.24.4691114181001600.300.440.620.881.21.82.53.65.07101216201602500.340.500.701.01.42.02.84.05.68111418222504000.400.560.781.11.62.23.24.46.29121620254006300.640.901.21.82.63.657101418222863010001.01.42.02.84.0681116202532100016001.62.23.24.6791318232937160025002.63.85.48101521263342250040004.46.29121724303849400063007.01014202835445663001000011162332405064注：CT1和CT2没有规定公差值，是为了将来可能要求更精密的公差保留的。CT13至CT16小于或等于16mm的铸件基本尺寸，其公差值需单独标注，可提高2-3 级。表2铸件尺寸公差数值mm铸件基本尺寸公差等级CT大于至345678930.140.200.280.400.560.801.2360.160.240.320.480.640.901.36100.180.260.360.520.741.01.5