TS 5319

TS 5319 is a standard for the way cutting-plane surfaces and material types are shown by hatching in technical drawings. In engineering graphics, hatching is the visual device used to distinguish a sectioned surface or to separate different materials, making complex drawings easier to read and interpret.

The role of hatching in technical drawings

In general drafting practice, hatching uses regular line patterns to identify areas cut by a section plane and to separate them from adjacent features. It helps the reader see internal form, the exposed section surface, and material changes without confusing these elements with the surrounding view. Differences in line direction, spacing, or pattern are commonly used as a visual code so that adjacent parts remain distinct on the same drawing.

What this standard covers

• Principles used to indicate material types by section hatching in technical drawings
• A general method applicable across technical drawings in all professional fields
• The graphical representation of cutting surfaces and material identity in section views

Based on its title and scope, this standard is concerned with the conventions for hatching itself, rather than with the full dimensional content of a drawing. In practice, rules of this kind support consistent interpretation, clearer production documentation, and faster recognition of material information in engineering communication.

The focus of TS 5319 is the graphic language of section views: not how a part is dimensioned, but how its exposed surfaces and material identity are presented in a standardized way. That makes it a useful reference for drawing reading, manufacturing documentation, and general technical communication.