![]() ![]() Grade DCTG 16 exists only for wall thicknesses of castings generally specified to DCTG 15.Īnnex A gives recommendations for the application of the above tolerance grades.Īs the default conditions for the dimensions, the casting tolerance shall be symmetrically disposed with respect to the nominal dimension, i.e. Linear dimensional tolerance for dimensional casting tolerance grade (DCTG) a DCTG DCTG DCTG DCTG DCTG DCTG DCTG DCTG DCTG DCTG DCTG DCTG 1 2 3 4 5 6 7 8 9 10 11 12 0,09įor wall thicknesses in grades DCTG 1 to DCTG 15, one grade coarser applies (see Clause 7). Nominal dimensions related to the moulded part. ![]() Table 2 - Linear dimensional casting tolerances (DCT) Dimensions in millimetresĪ&I-Normenabonnement - Siemens AG - Kd.-Nr.986345 - Abo-Nr.00851257/006/001 - 10:08:38 Sixteen linear dimensional casting tolerance grades are defined and designated as DCTG 1 to DCTG 16 (see Table 2). For drawings where the tolerances in accordance with this part of ISO 8062 only apply under specified, restricted conditions, ISO 10579 shall be referred to on the drawing.ĭimensional casting tolerance grades (DCTG) In both cases, individual tolerances shall be indicated. If using general tolerances, the necessity of smaller tolerances (for functional reasons) or of larger tolerances (for economical reasons) needs to be ascertained (see Annex C). ![]() Individual dimensional and geometrical tolerances shall be indicated in accordance with the relevant GPS standards on dimensional and geometrical tolerancing. ![]()
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