Vessels for super-heated water are covered by article 4, paragraph 1(a)(i), second indent and Annex II table 2 applies.
Piping for super-heated water is covered by article 4, paragraph 1(c)(i), second indent and Annex II table 7 applies.
These statements are applicable to unheated vessels or pipes with temperatures > 110° C.
Fired or otherwise heated vessels or piping with the risk of overheating that are intended for generation of steam or super-heated water at maximum allowable temperatures > 110° C are covered by article 4, paragraph 1(b) and Annex II table 5 applies.