BS ISO 4991:2015

What is ISO 4991 - Steel castings about?

ISO 4991 is an international standard on steel castings for pressure purposes that discusses the best procedures and specifications on manufacturing high-quality steel castings. ISO 4991 covers steel castings for pressure-containing parts. ISO 4991 includes materials that are used for the manufacture of components subject to pressure vessel codes and components not subject to codes. ISO 4991 relates to castings manufactured from unalloyed and alloyed steel grades (characterized by their chemical composition, Table 1, and mechanical properties, Tables 2, 3, 4, and 5). NOTE: Annex D gi...