Investigated sample: non-oriented Fe-(3.5 wt%)Si sheets.
Physical parameters: 
Thickness 0.30 mm  
Resistivity 56.9e–8 Ω·m 
Density 7600 kg/m^3
Saturation polarization 1.98 T

Alternating induction.
The average of the energy loss measured along RD and TD at any given peak induction and frequency pair is provided. The participating labs used their own RSST setups and methods. The selected frequencies and peak inductions were 5, 10, 20, 50, 100, and 200 Hz; and peak polarization 1., 1.25, 1.4, and 1.5 T.

The data reported in the file alt_INRIM.txt refer to a) lab.
The data reported in the file alt_Ampere.txt refer to b) lab.
The data reported in the file alt_PoliTO.txt refer to c) lab.
The data reported in the file alt_Satie.txt refer to d)lab.


The data reported in alt_reference.txt, obtained as the Epstein-local averaged figures, were taken as the reference loss values.


a) Istituto Nazionale di Ricerca Metrologica-INRIM, Strada delle Cacce 91, 10135 Torino, Italy (c.appino@inrim.it). 
b) Université Claude Bernard Lyon 1, Ampère, UMR5005, INSA Lyon, Ecole Centrale de Lyon, CNRS, Villeurbanne, F-69100, France (clementine.delaunay@polito.it).
c) Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy (carlo.ragusa@polito.it).
d) Laboratoire SATIE, CNRS/ENS Paris Saclay, 91190 Gif-sur-Yvette, France (olivier.de-la-barriere@ens-paris-saclay.fr). 