Webinar: A new method for fast and reliable material identification using mobile OES in existing steel structures

Vintage Steel Identification by Mobile OES in existing structures

On 23.04.23, in cooperation with Hitachi High-Tech Analytical Science, a webinar was held on the topic: “Identification of old steel in stock”. In this webinar, Prof. Dr. Peter Langenberg presented the old steel identification module (AIM©) developed by IWT-Solutions AG, which is used in conjunction with mobile optical emission spectroscopy (mobOES). The webinar explains how the method works and what is necessary to apply it in the construction industry and reflects on the benefits and future developments.


Prof. Dr. Peter Langenberg, CEO IWT-Solution AG and Professor (hon) at the University of Duisburg/Essen
Dr.-Ing. B. Döbereiner, head of the material analysis department at IWT-Solution AG

One of the global goals for sustainable development is “Responsible Consumption and Responsible Production”. In the area of ​​infrastructure, this goal is followed if existing structures such as steel bridges can be kept in operation beyond their intended service life. From a technical point of view, we already have the knowledge to recalculate the component safety of such structures and to enable safe operation under today’s loads. The knowledge of the material properties against the background of a different steel production and quality today and of aging effects is often not known. However, they are a necessary prerequisite for the recalculation and planning of remedial measures.


Against this background, IWT-Solutions AG has developed an old steel identification scheme (AIM©) that is based on well-founded expert knowledge and is combined with mobile OES measurement. Specifically, the Hitachi PM Master Smart was used successfully for this approach together with the UV-Touch Probe. The method has so far been validated on steel from 1870 to 1930, and it looks promising for use on steels produced to date as well.

The webinar shows how the method works and what is necessary to apply it in construction and reflects on the benefits and future developments resulting from the status achieved today.