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1、INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXAYHAPOAHAR OPrAHM3AklR fl0 CTAHAAPTM3AMM Wrought aluminium and aluminium alloy extruded rods/bars, tubes and profiles - Part 4 : Extruded profiles - Tolerances on shape and dimension
2、s Barres, tubes et profSs f1l6s en aluminium et en alliages d aluminium corroyt% - Partie 4 : Profik fiks - Tolhances sur forme et dimensions IS0 6362-4 First edition 1988-05-01 Reference number IS0 6362-4: 1988 (E) Copyright International Organization for Standardization Provided by IHS under licen
3、se with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1966 (El Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bod
4、ies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organization
5、s, govern- mental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circula
6、ted to the member bodies for approval before their acceptance as International Standards by the IS0 Council. They are approved in accordance with IS0 procedures requiring at least 75 % approval by the member bodies voting. International Standard IS0 6362-4 was prepared by Technical Committee ISO/TC
7、79, Light metals and their alloys. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. 0 International Organization for Standardization, 1999
8、0 Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 636
9、2-4 : 1988 (E) Wrought aluminium and aluminium alloy extruded rods/bars, tubes and profiles - Part 4 : Extruded profiles - Tolerances 1 Scope and field of application This part of IS0 6362 specifies the tolerances on shape and dimensions of extruded profiles of wrought aluminium and aluminium alloys
10、 with cross-sectional dimensions given by a circumscribing circle not greater than 600 mm. The shape of the cross-section is based on a drawing agreed upon by the purchaser and the supplier. It does not apply to - rolled profiles; - drawn profiles; - profiles made from sheet by roll forming; - extru
11、ded or drawn tube; - extruded or drawn rod and bar. 2 Alloy groups Tolerances are generally defined by the alloy types, which may be divided into two groups : Alloy Group I (with narrower tolerances) includes alloys with the following designations : Al 99,5 (105OA) Al Mg2 (5251) Al 99,0 (1200) Al Mg
12、2,5 (5052) Al 99,0Cu (1100) Al MgSi (6060) Al Mnl 13103) Al Mg0.7Si 6X63) Al MnlCu (3003) Al SilMgMn (6092) Al Mgl(B) EOO5) Al SiMg(A) 005A) Al Mgl,5(C) Kio50) Al MglSiCu 03061) on shape and dimensions Alloy Group II (with wider tolerances) includes alloys with the following designations : Al Mg3 (5
13、754) Al Cu4MgSi (2017) Al Mg3Mn (5454) Al Cu4Mgl (2024) Al Mg3.5 (5154) Al Cu4SiMg (2014) Al Mg4 (5066) Al Cu6Mn c2219) Al Mg4,5Mn0,7 (5063) Al Zn4.5Mgl (7020) Al Mg5Cr 15056) Al Zn5,5MgCu (7075) Al Cu2.5Mg 12117) However, in addition to the standard tolerances specified, greater or lesser tolerance
14、s may be specified by agreement between purchaser and supplier: a) for particular applications, or b) for special dimensions. These deviations from standard shall be stated in the order and indicated on the drawing. 3 Tolerances on shape and dimensions 3.1 Dimensional tolerances 3.1.1 Tolerances on
15、cross-sectional dimensions The tolerances achieved on the cross-sectional dimensions depend on the type of alloy employed. Profiles from alloys of Alloy Group I may be manufactured to tighter tolerances than those from alloys of Alloy Group II. 1 Copyright International Organization for Standardizat
16、ion Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1966 (El The tolerances (plus and minus) of D: space dimensions in hollow sections, A : metal d
17、imensions except wall thicknesses in hollow as shown in figure 1 are given in the appropriate columns of sections, tables 1 a and 1 b. B : wall thicknesses in hollow sections, C, or Ci: space dimensions in open sections, NOTE - With angled profiles such as that shown in figure 2a, the tolerances sha
18、ll not be based on the linear dimensions X, but on the angular dimensions (see 3.2.5). I A D OD 1 . k 1 A I L/X/A G ! R R 4 iY Fl 1 1 . I/1 . 1 I/ / / / , , , , , , ,I, , , /I 1 I Y,/,/,/I/,I 1 k k Figure 1 2 Copyright International Organization for Standardization Provided by IHS under license with
19、 ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1966 (El Table 1 a - Tolerances on cross-sectional dimensions for profiles with solid and hollow sections ) Values in millimetres All
20、owable deviations Iplus and minus12) Metal dimension 73 d g +I h:x %:E B g 8 y; E +I 0.15 0,23 0.18 0.28 0.20 0,30 0.23 0.36 0.25 0.38 0,m 0.46 0.36 0.54 0.60 0.90 0.86 I,30 1.10 1,70 1.35 2.05 Circumscribi 0,36 0,54 0.38 0,56 0.41 o,l 0.43 0,64 o/l6 0.68 ora 0.72 O.J 0,92 036 I,30 1,lO I,70 1.35 2,
21、05 1.65 2,45 1.90 2.60 2,15 3,20 2,40 3.60 2,65 3.95 2,943 4,35 3.15 4,70 3.40 5.10 na - - 2.55 2.80 3.05 3.30 3,55 3,I LD +I g 2 .g g; m d g +I $2 %E St3 8 y; 9 +I 1) Tolerances on the dimensions of the spaces in hollow sections are given in table 1 b (column D). 2) When a dimension tolerance is sp
22、ecified other than as an equal bilateral tolerance, the value of the standard tolerance is that which applies to the mean of the maximum and minimum dimensions per- missible under the tolerance. 3) See the note on page 2. 4) These tolerances do not apply to dimensions such as x or z in figure 2b eve
23、n when y is 75 % or more of x. For the tolerance applicable to dimensions x and z, use the appropriate column under Ci or C, dependent on the distance a from the base. 5) On agreement between purchaser and supplier, C, (external dimension) may be specified instead of Ci (internal dimension). 6) Appl
24、ies when completely enclosed space is 76 mm2 or greater; otherwise, column “Open sections” A is used. Figure 2a Base Figure 2b 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30
25、MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1966 (El Table 1 b - Tolerances on space dimensions in hollow sections D Values in millimetres ; Circumscribing circles sizes 250 and 600 3,20 3,20 6.30 0,46 0.48 ON 0,66 6,30 12.50 0.50 0.72 12,w 20,oo 0.56 0,76
26、20,oo 25,00 0,5a 0,78 25,00 40,oo 0,60 o,a4 40,oo 50,oo 0,86 1,15 50,oo 100,00 I,10 I,55 100,00 150,oo I,35 I,95 150,oo 200.00 1.65 2.30 200,oo 250,OO I,90 2,70 250.00 300.00 2.15 3.05 300,oo 350,oo 2,40 3.45 350.00 400.00 2,65 3.85 400.00 450,oo 2,90 4.20 450,oo 500,oo 3,15 4,60 500.00 550,oo 3.40
27、5.00 550.00 600,OO 3,65 5,35 Figure 3a Figure 3b NOTE - Tolerances are determined as follows (see figure 2) : The tolerance for the width w is the value shown in column D, bearing in mind that a change in the width w will also affect the depth d. The tolerance for the depth d is the value shown in c
28、olumn D, bearing in mind that a change in the depth d will also affect the width w. A Width w Figure 2c Example: Alloy Group I, circumscribing circle sizes 250 mm Dimensions : d = 25 mm, w = 40 mm Allowable deviations : Ad = kO,46 mm, Aw = +0,54 mm The tolerance for either width or depth will always
29、 be least between the corners (cf metal dimensions, column A, in table 1 a). Exceptions The cross-sectional tolerances of profiles for which the nominal thickness of one wall is three times or more than that of the opposite wall, as shown in figures 3a to 3d, shall not be deter- mined using tables 1
30、 a and 1 b. In this case, the tolerances shall be as agreed upon between purchaser and supplier. Figure 3c Figure 3d In the case of profiles with regular hollow sections as exemplified in figure 4, the standard wall thickness tolerance for extruded round tube as given in relevant International Stand
31、ards is applicable. The void of such profiles shall be round and 25 mm or more in diameter and its mass shall be equally distributed on opposite sides of two or more equally spaced axes. 4 Figure 4 Copyright International Organization for Standardization Provided by IHS under license with ISO Licens
32、ee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1966 (E) 3.1.2 Length tolerances 3.2 Tolerances on shape If fixed lengths are to be supplied, this shall be stated on the order. The permissible
33、 tolerances are given in table 2. 3.2.1 Straightness If no fixed or minimum length is specified in the order, profiles may be delivered in random lengths. Straightness in the longitudinal direction shall be measured by placing the profile on a flat table, the profile resting under its own weight. It
34、 shall be specified for the total length I, as well as for any segment of 300 mm (see figure 5). 3.1.3 Squareness of cut ends The deviation from squareness of cut ends shall not exceed 0,017 mm/mm width (equivalent to a lo angle). For profiles ordered as fixed lengths, this deviation shall be includ
35、ed in the fixed-length tolerances (table 2). The deviation h, from straightness for the length shall not exceed 2 mm/m length. Local deviation h, from straightness shall not exceed 0,6 mm/300 mm length. Straightness tolerances for tempers TX510 shall be subject to agreement between purchaser and sup
36、plier. Table 2 - Fixed-length tolerances Values in millimetres Measuring table Figure 5 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:43:30 MDTNo reproduction or networking permit
37、ted without license from IHS -,-,- IS0 6362-4 : 1966 (El 3.2.2 Flatness The maximum allowable deviation from flatness of profiles with open and hollow sections is given in table 3 as a function of profile width and thickness (see figure 6). Table 3 - Flatness tolerances Values in millimetres Width w
38、 Over Up to and including - 50 0.30 0,20 0,20 50 100 0,60 0,40 0,40 100 150 0,90 0,60 0,60 150 200 12 0,80 0.80 200 300 13 12 12 300 400 23 It6 I, -3 400 500 3,O 2s) zo 500 600 3,6 2,4 2,4 Deviation h m 4 e = thickness Figure 6 3.2.3 Tolerances for curved cross-sections (contour tolerances) For prof
39、iles with curved cross-sections, the deviation, at any point on the curve, from the theoretically exact line as defined by the drawing shall not be greater than the appropriate tolerance t given in table 4. Considering all points on the curve, a tolerance zone can be defined, this zone lying between
40、 the two envelopes running tangential to all the tolerance circles of diameter t which can be drawn with their centres lying along the theoretically exact line (see figure 7). X Figure 7 Table 4 - Permissible contour tolerances Values in millimetres Diameter of circumscribing circle Maximum contour
41、tolerance = Over - 30 60 90 120 150 200 250 300 400 500 Up to and Diameter I of the tolerance including circle 30 0.30 60 0.50 90 0.70 120 I.0 150 1.2 200 I,5 250 2.0 300 25 400 3,O 500 3.5 600 4,O NOTE - Contour tolerances may be checked by placing a section of the profile on a 1 : 1 scale projecti
42、on of the drawing with the maximum contour tolerance t indicated on the drawing. Another recommended method is the use of suitable templates (min./max.). 6 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for R
43、esale, 04/24/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1969 (El 3.2.4 Twist the maximum distance at any point along the length between the bottom surface of the profile and the flat table surface (see Twist tolerances are applicable to lengt
44、hs of up to 8 m. Lengths figure 8). From this measurement, the deviation from straightness greater than 8 m shall be subject to agreement between purchaser is subtracted. The remainder is twist. Tolerances are given as a and supplier. Twist v shall be measured by placing the profile on a function of
45、 the circumscribing circle in table 5 in millimetres per flat table, the profile resting under its own weight, and measuring millimetre width w and metre length I of the profile. Figure 8 Table 5 - Twist tolerances Diameter of circumscribing circle Tolerance, mm per millimetre of width mm Alloy Grou
46、p I Alloy Group II 1, in total in total Over Up to and per metre length, per metre length, including of length no more of length no more than than 12,5 40 0,052 0,122 0,070 0,140 40 80 0,026 0,087 0,034 0,105 80 250 0,017 0,052 0,026 0,070 250 600 0,010 0,040 0,017 0,058 1) And all materials with a
47、controlled stretch for stress relief. Tempers TX510 are excluded and tolerances for these shall be agreed upon between purchaser and supplier. 7 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/2
48、4/2007 10:43:30 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6362-4 : 1988 (El 3.2.5 Angularity Table 6 - Angular tolerances The deviation in an angle shall not exceed at any point the appropriate value given in table 6. 3.2.6 Fillet radii Sharp corners may be slightly rounded with a fillet of maximum radius 0,8 mm, unless otherwise indicated on the drawing. When the radius is specified on the drawing, the difference between actual and specif