EN 10279 pdf free download

EN 10279 pdf free download.Hot rolled steel channels – Tolerances on shape, dimensions and mass.
I Scope
This European Standard specifies requirements for the tolerances on dimensions, shape and mass of hot-rolled steel channels with tapered flanges or parallel flanges. These requirements do not apply to channels produced from stainless steel.
2 Normative references
This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.
EN 10079, Definition of steel products
3 Definitions
For the purpose of this standard the definitions given in EN 10079 apply.
4 Tolerances on dimensions and shape
4.1 Section height (h)
The deviation from nominal on section height (h) shall be within the tolerance given in Table 1 for tapered flange channels and in Table 2 for parallel flange channels. Height is measured over the web.
4.2 Flange width (b)
The deviation from nominal on flange width (b) shall be within the tolerance given in Table 1 for tapered flange channels and in Table 2 for parallel flange channels.
4.3 Web thickness (s)
The deviation from nominal on web thickness (s) when measured at the mid-height position of the web, shall be within the tolerance given in Table 1 for tapered flange channels and inTable 2 for parallel flange channels.
4.4 Flange thickness (t)
The deviation from nominal on flange thickness (t), when measured at a distance of b/2 from the toe of the flange, shall be within the tolerance given in Table 1 for tapered flange channels and in Table 2 for parallel flange channels.
4.5 Heel radius (r3)
The radius of the heel radius (r3) shall not exceed 0,3t where t is the flange thickness.
4.6 Out of squareness (k + k1) and web bow (t)
4.6.1 The out of squareness of the section (k + k1) shall not exceed the maximum given in Table I for tapered flange channels and in Table 2 for parallel flange channels.
4.6.2 The web flatness (t) shall not exceed the values given in Table 1 for tapered flange channels and in Table 2 for parallel flange channels.
4.7 Straightness (9xx or 9yy) The straightness (9xx or 9)) shall conform to the requirements given in Table 1 for tapered flange channels and in Table 2 for parallel flange channels.
5 Mass . The deviation between the effective value and the nominal value of the mass per unit length shall comply, for any piece, with the requirements given in Table 1 for tapered flange channels and in Table 2 for parallel flange channels. The nominal value of mass per unit length shall be determined using a density of 7,85 kg/dm3. EN 10279  pdf download.