Standards Development

Scope

This CEN/TS gives complementary provisions for the use of reclaimed structural components in the execution of steel structures in EXC1 to EXC3 according to EN 1090-2. The provisions apply to products used in structures to be designed according to EN 1993-1-1 without seismic and/or fatigue design. 

This CEN/TS specifies requirements for the reusability assessment of reclaimed structural components and the declaration of mechanical and geometrical properties as well as weldability. The properties to be declared are those listed as required relevant properties to be specified according to clause 5.1 of EN 1090-2:

• strength (yield and tensile);

• elongation;

• tolerances on dimensions and shape;

• heat treatment delivery conditions;

• weldability.

This CEN/TS applies to reclaimed hot rolled profiles and hot finished or cold formed hollow sections used as constituent products according to EN 1090-2.

This CEN/TS can also be used for the assessment of the aforementioned properties of fabricated products. 

The recommendations for the assessment of connections however, and in particular of welds, is non exhaustive and only informative.

This CEN/TS is not intended for thin gauge products according to EN 1090-4 or mechanical fasteners. 

Purpose

The environmental advantages of re-using reclaimed structural steel are considerable, compared to the common practice of recycling by re-melting scrap. There are also potential cost savings. There is a need to standardize how to inspect and test to ensure that reclaimed structural steelwork can be used with confidence in a new structure. When using reclaimed steel, the design is based on the material properties, maintaining the relationship between design assumptions and material resistance. It is therefore appropriate that re-fabricated, reclaimed structural steelwork may be CE Marked in accordance with EN 1090-1.

For these reasons, a new CEN/TS would be developed based on a series of documents and reports prepared in Norway, Sweden, Finland, UK and EU.