DIN 1026-1(2000)

ICS 77.140.70Warmgewalzter U-Profilstahl – Teil 1: Warmgewalzter U-Profilstahl mit geneigten Flanschflächen – Maße, Masse und statische WerteIn keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker.DEUTSCHE NORM March 20001026-1{Continued on pages 2 to 4.©No part of this translation may be reproduced without the prior permission ofDIN Deutsches Institut für Normung e.V., Berlin. Beuth Verlag GmbH , 10772Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Translation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.Hot-rolled steel channels with taper flangesDimensions, mass and static parametersRef.No.DIN 1026-1:2000-03English price group 05Sales No.010509.00This standard, together with DIN EN 10279,March 2000 edition,supersedesOctober 1963 edition.ForewordThis standard has been prepared by Technical Committee Warmgewalzte Profilerzeugnisse of the Normen-ausschuss Eisen und Stahl (Steel and Iron Standards Committee).Revision of DIN 1026 was prompted by publication of DIN EN 10279, which specifies tolerances on dimen-sions, form and mass for hot-rolled steel channels with taper and parallel flanges.AmendmentsThis standard differs from the 1963 edition as follows:a)The standard now consists of two parts. DIN 1026-1 specifies requirements for steel channels with taper flanges, and DIN 1026-2*) those for steel channels with parallel flanges.b)Dimensional and geometrical tolerances and tolerances on mass are now specified in DIN EN 10279.c)References have been updated.Previous editionsDIN 1612:1924-09, 1932-01, 1943x-03; DIN 1026-1:1926-04, 1936-12, 1938-12, 1940x-07;DIN 1026-2:1926-04, 1929-12, 1940x-07; DIN 1026-3:1926-04, 1938-12, 1940-07; DIN 1026:1959-07,1963-10.All dimensions are in mm.1ScopeThis standard specifies dimensions, mass and static parameters for hot-rolled steel channels with taper flanges with a height, h , of 30 mm to 400 mm, made from steel of a grade specified in clause 6.2Normative referencesThis 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 titles of the publications are listed below. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies.DIN 1026-2Hot-rolled steel channels with parallel flanges – Dimensions, mass and static param-eters*)DIN EN 10025Hot-rolled unalloyed structural steel products – Technical delivery conditions (includesAmendment A1:1993)DIN EN 10113-1Hot-rolled weldable fine grain structural steel products – Technical delivery conditions *)Currently at draft stage.Page2DIN1026-1:2000-03DIN EN 10113-2Hot-rolled weldable fine grain structural steel products – Technical delivery conditions for normalized steelDIN EN10113-3Hot-rolled weldable fine grain structural steel products – Technical delivery conditions for thermomechanically rolled steelDIN EN 10279Hot-rolled steel channels – Tolerances on shape, dimensions and mass3Designationa Taper with height, h, of 300mm or less: 8%.Taper with height, h, over 300mm: 5%.Figure 1EXAMPLE: Designation of a hot-rolled steel channel with taper flange (U) in accordance with this standard, witha height of 300 mm, made from steel of grade S235JR or material number 1.0037 as in DIN10025:Channel DIN1026 – U 300 – S235JRorChannel DIN1026 – U 300 – 1.00374Dimensions, mass and static parameters4.1Dimensions, mass and static parameters of hot-rolled steel channels with taper flanges shall be as in table1.4.2The masses specified in table 1 have been calculated on the basis of a density of 7,85 kg/dm3.5TolerancesSee DIN EN 10279.6MaterialChannels shall preferably be made from steel of a grade as in DIN EN10025 and DIN10113. The steel grade shall be specified when ordering.Page 3DIN 1026-1:2000-031)J = moment of inertia, W = section modulus, i = radius of gyration.2)S x = moment of first order of half the cross section.3)s x = J x :S x = distance between centres of compression and tension.4)x M= distance of shear centre (M) from y-y axis.(continued)Table 1:Dimensions, mass and static parameters for steel channels with taper flangesSection desig-nation Dimensions, in mm, forSec-tion area,in cm 2Mass,in kg/mSurface area,in m 2/m Static parameters 1)about x-x axisabout y-y axisDimen-sions e y ,in cm hb s tr 1r 2AGUJ xcm 4W x cm 3i x cmJ ycm 4W y cm 3i y cmS x 2)cm 3s x 3)cmy-yx M 4)cmUPage 4DIN 1026-1:2000-03Table 1 (concluded)1)J = moment of inertia, W = section modulus, i = radius of gyration.2)S x = moment of first order of half the cross section.3)s x = J x :S x= distance between centres of compression and tension.4)x M= distance of shear centre (M) from y-y axis.Section area, mass, surface area and static parameters are calculated from the dimensions given in the table.Section desig-nation Dimensions, in mm, forSec-tion area,in cm 2Mass,in kg/mSurface area,in m 2/m Static parameters 1)about x-x axisabout y-y axisDimen-sions e y ,in cm hb s tr 1r 2AGUJ xcm 4W x cm 3i x cmJ ycm 4W y cm 3i y cmS x 2)cm 3s x 3)cmy-yx M 4)cmU。