Structural sections of cold-formed carbon steel manufactured using profiling machines, with a L, U, C, Z or special shape, for use in construction (bolted, riveted and welded structures), and for general structural purposes.
NCh3576:2018, Acero - Perfil abierto estructural de acero al carbono conformado en frío - Requisitos (Chilean Standard (NCh) No. 3576:2018: Steel - Open sections of cold-formed carbon steel - Requirements) (20 pages, in Spanish)
The notified Standard establishes the requirements to be met by structural sections of cold-formed carbon steel produced using profiling machines, with a L, U, C, Z or special shape, for use in construction (bolted, riveted and welded structures), and for general structural purposes.
It applies to sections with a nominal wall thickness of more than 1.5 mm and less than 25.4 mm. It does not apply to cold-formed sections manufactured through drawing, deep drawing or folding processes.