DIN 59051-2004 Steel bars - Hot-rolled sharpedged T-bars - Dimensions masses tolerances《钢棒 热轧锐缘丁字钢 尺寸、质量和公差》.pdf

1、DEUTSCHE NORM April 200459051Document comprises 4 pages. No part of this translation may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Bars made o

2、f hot rolled square-edged steel T sectionsDimensions and massTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.ICS 77.140.70Stabstahl Warmgewalzter scharfkantiger T-Stahl Mae, Masse und ToleranzenIn keeping with current pra

3、ctice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.ForewordThis standard has been prepared by Technical Committee Warmgewalzte Profilerzeugnisse of theNormenausschuss Eisen und Stahl (Steel and Iron Standard

4、s Committee).AmendmentsThis standard differs from the August 1981 edition in that it has been editorially revised and closer toleranceshave been specified.Previous editionsDIN 1022: 1940-07, 1959-06, 1963-10; DIN 59051: 1959-06, 1963-10, 1981-08.All dimensions are in millimetres.1 ScopeThis standard

5、 specifies requirements for hot rolled square-edged steel T sections with parallel faces andequal flanges, preferably made from DIN EN 10025 steel and with dimensions as specified in table 1.See DIN EN 10055 for T sections with equal flanges and with rounded roots and toes.Supersedes August1981editi

6、on.English price group 6www.din.dewww.beuth.de06.04 9560619Page 2DIN 59051 : 2004-042 Normative referencesThis standard incorporates, by dated or undated reference, provisions from other publications. These norma-tive references are cited at the appropriate places in the text and the titles of the p

7、ublications are listed below.For dated references, subsequent amendments to or revisions of any of these publications apply to thisstandard only when incorporated in it by amendment or revision. For undated references, the latest edition ofthe publication referred to applies.DIN EN 10025 Hot rolled

8、unalloyed structural steel products Technical delivery conditions (includes Amend-ment A1 : 1993)DIN EN 10055 Hot rolled steel equal flange tees with radiused root and toes Dimensions and tolerances onshape and dimensions3 Designation3.1 Standard designationA T section (TPS) made from steel of grade

9、 S235JR (material number 1.0037) as specified in DIN EN 10025, witha depth, h, of 30 mm shall be designated:Tee DIN 59051 TPS 30 S235JRorTee DIN 59051 TPS 30 1.0037Figure 1: Tee section (notation)3.2 Order detailsWhen ordering, angles shall be designated as follows.EXAMPLE 1:20 tonnes of T section b

10、ars with a depth of 30 mm (TPS 30), made from steel of grade S235JR (materialnumber 1.0037) as specified in DIN EN 10025, to be supplied in specified lengths of 6 000 mm, shall bedesignated:20 t of tees DIN 59051 TPS 30 6 000 S235JRor20 t of tees DIN 59051 TPS 30 6 000 1.0037EXAMPLE 2:10 tonnes of T

11、 section bars with a depth of 25 mm (TPS 25), made from steel of grade S235JR (materialnumber 1.0037) as specified in DIN EN 10025, to be supplied in exact lengths of 6 500 mm, subject to limitdeviations of t 25 mm, shall be designated:10 t of tees DIN 59051 TPS 25 6 500 t 25 S235JRor10 t of tees DI

12、N 59051 TPS 25 6 500 t 25 1.00374 Dimensions and tolerances4.1 Section dimensions4.1.1 T sections shall have the dimensions specified in table 1.Page 3DIN 59051 : 2004-04Table 1: T section dimensions and mass4.1.2 The deviation of sections from rectangularity, k, shall not exceed 1 mm (see figure 2)

13、.4.1.3 The misalignment of the web, m = (b1 b2)/2 (see figure 2), shall not exceed 1 mm.Figure 2: Deviation of section from rectangularity (notation)4.2 StraightnessThe maximum deviation from straightness of bars, q, shall be equal to 0,004 l (cf. figure 3). More stringentrequirements for straightne

14、ss shall be subject to agreement.Figure 3: Deviation of straightnessSection dimensionshbstSizeLimitdevia-tionsLimitdevia-tionsLimitdevia-tionsLimitdevia-tionsSectionalarea, 1) 2)A,in cmMass, 2)inkg/mSurfacearea, 2)inm/mTPS 20 20 20 3 3 1,11 0,871 0,080TPS 25 25 25 3,5 3,5 1,63 1,28 0,100TPS 30 30 30

15、 4 4 2,24 1,76 0,120TPS 35 35 35 4,5 4,5 2,95 2,31 0,140TPS 40 405021,+405021,+525060,+525060,+3,75 2,94 0,1601) A = b t + h s s t2) The values specified for cross-sectional area, surface area and mass have been calculated on the basis of thelinear dimensions.Page 4DIN 59051 : 2004-045 MaterialT sec

16、tions should be made from DIN EN 10025 steel, with the particular steel grade being specified at the timeof ordering.6 MassThe mass of sections specified in table 1 has been calculated taking the density as 7,85 kg/dm.The maximum permissible upper deviation of the mass from the nominal mass (given i

17、n the penultimate columnof table 1) is to be calculated on the basis of the limit deviations given in table 1, the maximum permissible lowerdeviation shall be as specified in table 2.Table 2: Tolerance (lower limit deviation) on massMaximum permissible lower deviationSizefrom nominal mass, as a perc

18、entageTPS 20 and TPS 25 10TPS 30 to TPS 40 187 Measurement of straightness and mass7.1 Number of samplesThe number of samples for straightness measurement shall be subject to agreement.7.2 Procedure7.2.1 When measuring the deviation from straightness, q, this shall be established for the total lengt

19、h of a baras supplied.7.2.2 The deviation from the nominal mass shall be established by weighing one bar the length and mass ofwhich (cf. table 1) has been determined as exactly as possible.8 Lengths suppliedThe lengths in which T section bars are to be supplied shall be as specified in table 3.Tabl

20、e 3: Length detailsType of lengthLengthOrder informationrange toleranceSpecified From 6 000 to 12000 t1001) Desired specified length, in mmExact From 6 000 to 12000 Less than t1001) 2) Desired exact length and tolerances1) Subject to agreement, the distribution of deviations may be assymetrical, i.e. the tolerance may either lieabove or below the zero line (e.g. +2000mm instead of t100 mm) for specified lengths or 50(insteadof t25 mm) for exact lengths.502) To be specified on ordering.