Table 2. Materials selected for the experiments in M4F, specifying WP, and their basic composition. For the detailed composition of Eurofer97 see Table 3.

ID	Short name	WP	Cr (w.%)	Ni (w.%)	Si (w.%)	P (w.%)	Al (w.%)
G379	Fe	WP2,6	0.002	0.007	0.001	0.003	0.023
G385	Fe-9Cr	All WPs	9.1	0.009	0.004	0.003	0.027
G389	Fe-9Cr-NiSiP	WP2,3,6	9.1	0.092	0.212	0.032	0.028
G390	Fe-14Cr	WP3	14.5	0.009	0.008	0.003	0.030
G391	Fe-14Cr-Ni	WP3	14.4	0.094	0.004	0.003	0.030
G392	Fe-14Cr-Si	WP3	14.5	0.007	0.203	0.003	0.023
G393	Fe-14Cr-P	WP3	14.4	0.008	0.003	0.032	0.024
G394	Fe-14Cr-NiSiP	WP2,3,6	14.4	0.087	0.194	0.031	0.025
L252	Fe-9Cr-NiSiP F/M	WP2,3,6	9.1	0.07	0.09	0.012	0.007
E97	Eurofer	All WPs	8.99	0.007	0.07	<0.005

*Electrolitic iron composition used for G alloys:

<0.005