TS EN ISO 4885

TS EN ISO 4885 is a vocabulary standard that standardizes the terms and definitions used in the heat treatment of ferrous materials. It brings together the language of heat treatment for steel and cast iron products and workpieces in a common technical framework, helping engineers, manufacturers, inspectors and technical writers use the same concepts with the same meaning.

The technical field covered by the vocabulary

In general technical terms, heat treatment refers to controlled heating, holding and cooling operations used to change the microstructure of ferrous materials and, in turn, their properties such as hardness, strength, ductility and toughness. The subject of this standard is not the treatment process itself, but the terminology used to describe it. In practical metallurgical context, that vocabulary helps distinguish phases, transformations, temperature ranges, hardening behaviour and process effects.

What this document specifically includes

• Annex A provides an alphabetical list of the terms defined in the document, together with their French, German, Chinese and Japanese equivalents.
• Table 1 shows the various iron-carbon (Fe-C) phases, supporting the metallurgical background of heat treatment terminology.
• The note states that ferrous materials include products and workpieces of steel and cast iron.

As a result, TS EN ISO 4885 is more than a naming reference: it is a common language tool that helps define the boundaries of the concepts used in heat treatment engineering. It is particularly useful where multilingual teams, supply chains and technical documentation need consistent interpretation of terms. This record is withdrawn as a standard, but it remains a useful technical reference for understanding the terminology structure of the field.