TS ISO 15787

TS ISO 15787 is a technical product documentation standard for heat-treated ferrous parts, focused on how their final condition is presented and indicated on technical drawings. Its purpose is to make the post-treatment condition of a part clear and unambiguous in documentation, so design, manufacturing, and quality control can work from the same technical interpretation.

How the final condition is communicated on a drawing

Heat treatment is used in ferrous materials to adjust properties such as hardness, strength, ductility, and internal stress. The same part geometry can therefore represent very different functional behaviour depending on its heat-treated state. The standard addresses the way that final condition is shown and the way related information is indicated in technical drawings; it is about documentation practice rather than defining the metallurgical process itself.

What this standard covers in practical use

• Applies to parts made from ferrous materials.
• Deals with how the final heat-treated condition is presented on technical drawings.
• Covers the indication of related information in documentation.
• Supports consistent and readable technical communication across production and inspection.

In general engineering practice, this kind of notation matters whenever a part must arrive not only with the correct dimensions, but also with the intended material condition. Clear drawing indications help avoid ambiguity between as-machined, heat-treated, and other final states. This standard belongs to the documentation side of that problem, providing a structured way to communicate the final condition of heat-treated ferrous parts.