Table 1.

Chemical composition of the T91 and Eurofer97 materials (in wt.%; Fe balance).

Element	Cr	Mo	Mn	Si	V	Ni	Nb	Cu	Al
T91	8.873	0.871	0.386	0.218	0.195	0.115	0.077	0.080	0.009
Eurofer97	8.87	<0.001	0.42	0.06	0.19	0.0075	<0.001	0.021	0.008
Element	C	N	P	S	Sn	O	W	Ta	Ti
T91	0.097	0.0440	0.020	0.0005	-	-	-	-	-
Eurofer97	0.12	0.018	0.004	0.003	<0.005	0.001	1.10	0.14	0.008
Element	Co	As	Sb	Zr
T91	-	-	-	-
Eurofer97	0.005	<0.005	<0.005	<0.005