This European standard specifies the nominal dimensions and masses of the hot rolled steel channels, I and H sections.The following shapes are covered by this standard:Sections:-Parallel flange I sections IPE;-Wide flange beams HE;-Extra wide flange beams HL and HLZ;-Wide flange columns HD;-Wide flange bearing piles HP and UBP;-Universal beams UB;-Universal columns UC;-Taper flange I sections IPN and J.Channels:-Parallel flange channels UPE and PFC;-Taper flange channels UPN, U and CH.These requirements do not apply to hot rolled steel channels, I and H sections from stainless steel.