UNI EN 10243-1 : 2006

Foreword
1 Scope
2 Normative references
3 Symbols
4 Information required in determining tolerances
  4.1 Mass of forging
  4.2 Shape of die line
  4.3 Category of steel used
  4.4 Shape complexity factor
  4.5 Types of dimension
5 Categories of tolerances
  5.1 Scope of categories
  5.2 Definition of categories
  5.3 Deviations of form
6 Use of tables
  6.1 Tables 1 and 2 - Tolerances for length, width
                       and height, residual flash (and
                       trimmed flat), and mismatch
  6.2 Table 3 and Table 4 - Tolerances for thickness and
                            ejector marks
  6.3 Table 5 - Tolerances for straightness, flatness
                and tolerances for centre-to-centre dimensions
  6.4 Table 6 - Tolerances for fillet and edge radii;
                tolerances for burrs; tolerances for sheared ends
7 Design procedure
  7.1 Information required by the forger
  7.2 Preparation of forging drawing
  7.3 Indication of dimensions on forging drawing
  7.4 Indication of tolerances on forgoing drawings
  7.5 Importance of forging drawing
Annex A (informative) Examples of application

Defines the dimensional tolerances for steel drop and vertical press forgings made under hammers and presses.