NEN EN 10243-2 : 1999 C1 2006

      Foreword
1 Scope
2 Normative References
3 Symbols
4 Definitions
5 Information required in determining tolerances
      5.1 Mass of upset portion
      5.2 Category of steel used
      5.3 Shape complexity factor
6 Categories of tolerances
      6.1 Scope of categories
      6.2 Definition of categories
      6.3 Deviation of form
7 Use of tables
      7.1 Table 1: Tolerances for diameter, length,
                       residual flash (and trimmed flat),
                       mismatch and eccentricity
      7.2 Table 2: Tolerances for thickness
      7.3 Table 3: Tolerances for straightness and
                       flatness, tolerances for centre-to-
                       centre dimensions
      7.4 Table 4: Tolerances for fillet and edge radii;
                       tolerances for die line fins, trimming
                       burrs; tolerances for sheared ends
8 Design procedure
      8.1 Information required by the forger
      8.2 Preparation of forging drawing
      8.3 Indication of dimensions on forging drawings
      8.4 Indication of tolerances on forging drawings
      8.5 Importance of forging drawing
Annex A (informative) Examples of application

Defines the dimensional tolerances for steel upset forgings produced on horizontal forging machines.