Drawing scales in technical drawings in accordance with DIN ISO 5455
Introduction to drawing scales
In technical drawings, the scale is a central element that defines the relationship between the depicted size of an object and its actual size. By using suitable scales, both very large and very small objects can be precisely represented on a standardized drawing format.
The DIN ISO 5455 standard specifies the standardized scales for technical drawings. It defines both reduction and enlargement scales and ensures that drawings can be interpreted in a standardized way internationally.
Application of scales in technical drawings
Different drawing scales are required to be able to depict components, assemblies and complete systems of different sizes. They indicate the ratio of the drawn objects to their actual size.
The drawing scales are standardized in accordance with DIN ISO 5455. The following applies:
- natural size 1 : 1
- Reductions 1 : 2, 1 : 5, 1 : 10, 1 : 20, 1 : 50
- Magnifications 2 : 1, 5 : 1, 10 : 1, 20 : 1, 50 : 1
The main scale of the drawing is indicated in the title block. Scale information can also be given for details and sectional views.
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