1、DEUTSCHE NORM SeDtember 1999 I Steel - Conversion of elongation values Part 1 : Carbon and low allov steels - (IS0 2566-1 : 1984) I Enalish version of DIN EN IS0 2566-1 I EN IS0 2566-1 ICs 77.040.1 O Stahl - Umrechnung von Bruchdehnungswerten - Teil 1 : Unlegierte und niedrig legierte Sthle (IS0 256
2、6-1 : 1984) European Standard EN IS0 2566-1 : 1999 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been published in accordance with a decision taken by ECISS/TC 1 to adopt, without alteration, International Standard IS0 2566-1 as a Europe
3、an Standard. The responsible German body involved in its preparation was the Normenausschu Materialprfung (Mate- rials Testing Standards Committee), Technical Committee Prfverfahren mit zgiger Beanspruchung fr Me talle. EN comprises 30 pages. No pari of this standard may be reproduced without the pr
4、ior permission of Ref. No. DIN EN IS0 2566-1 : 1999-0 Y Deutsches Institut fr Normung e. V., Berlin. wth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 15 Sales No. 11 15 03.00 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN I
5、SO2566-1 June 1999 ICs 77.040.00; 77.040.1 O English version Steel - Conversion of elongation values Part 1 : Carbon and low alloy steels (IS0 2566-1 : 1984) Acier - Conversion des valeurs dallongement - Partie 1 : Aciers au carbone et aciers faiblement allis Stahl - Umrechnung von Bruchdeh- nungswe
6、rten - Teil 1 : Unlegierte und niedrig legierte Sthle (IS0 2566-1 : 1984) (IS0 2566-1 : 1984) This European Standard was approved by CEN on 1999-04-25. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
7、 of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national stand- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A ve
8、rsion in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland
9、, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1
10、050 Brussels O 1999. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 2566-1 : 1999 E Page 2 EN IS0 2566-1 : 1999 Foreword International Standard IS0 2566-1 : 1984 which was prepared by ISO/TC 17 Steel of the International Org
11、anization for Standardization, has been adopted by Technical Committee ECISS/TC 1 Steel testing, the Secretariat of which is held by AFNOR, as a European Standard. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, a
12、nd conflicting national standards withdrawn, by December 1999 at the latest. In accordance with the CENKENELEC Internal Regulations, the national standards organizations of the follow- ing countries are bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark, Finland
13、, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Steel - Conversion of elongation values - Part 1 : Carbon and low alloy steels, Endorsement notice The text of the International Standard IS0 2566-1
14、: 1984 was approved by CEN as a European Standard without any modification. Page 3 EN IS0 2566-1 : 1999 A A, d Lo So O Introduction Percentage elongation on gauge length, Lo, after fracture, obtained on test Percentage elongation on a different gauge length, required by conversion Diameter of test p
15、iece Original gauge length Original cross-sectional area of test piece These conversions are not applicable to Several different gauge lengths are commonly in use for the determination of percentage elongation of steels in tensile testing. Fixed gauge lengths of 50, 80, 100 and 200 mm are used; prop
16、ortional gauge lengths of k Aare also used for flat and round test pieces, where k may be one of a number of values, .e. 4; 5,65; 8,16; and 11,3. The value 5,65a is adopted as the internationally preferred proportional gauge length. Arising from this choice and the existence of specifications stipul
17、ating minimum percentage elongations on different gauge lengths, a growing need has been evident for an International Standard which could be used to convert test results into values based on the different gauge lengths. This part of IS0 2566 accordingly includes tables of conversion factors, tables
18、 of actual conversions for some of the most commonly used gauge lengths and elongation values, and figures which may also be used for such conversions. When using these con- versions, however, note should be taken of the limitations on their applicability as stated in clause 1. While, as indicated,
19、the conversions are considered to be reliable within the stated limitations, because of the various fac- tors influencing the determination of percentage elongations, they shall be used for acceptance purposes only by agreement between the customer and supplier. In cases of dispute, the elongation s
20、hall be determined on the gauge length stated in the relevant specification. 1 Scope and field of application This part of IS0 2566 specifies a method of converting room temperature percentage elongations after fracture obtained on various proportional and non-proportional gauge lengths to other gau
21、ge lengths. The formula (see clause 4) on which conversions are based is considered to be reliable when applied to carbon, carbon manganese, molybdenum and chromium molybdenum steels within the tensile strength range 300 to 700 N/mm2 and in the hot-rolled, hot-rolled and normalized or annealed condi
22、tions, with or without tempering. a) cold reduced steels; b) quenched and tempered steels; c) austenitic steels. Neither should they be used where the gauge length exceeds 256 or where the width to thickness ratio of the test piece exceeds 20. Care should be exercised in the case of strip under 4 mm
23、 thickness, as the index in the formula given in clause 4 in- creases with decreasing thickness; the value to be used shall be the subject of agreement between the customer and the supplier. 2 Symbols In this part of IS0 2566, the symbols shown in table 1 are used. Table 1 - List of symbols Symbol I
24、 Description 3 Definitions For the purpose of this part of IS0 2566, the following defini- tions apply: 3.1 test piece used for measurement of strain. gauge length: Any length of the parallel portion of the The term is hereafter used in this part of IS0 2566 to denote the original gauge length, Lo,
25、marked on the test piece for the determination of percentage elongation after fracture, A, Page 4 EN IS0 2566-1 : 1999 3.2 proportional gauge length: A gauge length having a specified relation to the square root of the cross-sectional area, for example 5,65 A is the elongation on a gauge length of 4
26、&; So and Lo are defined in table 1 This formula gives a direct conversion of elongation on 4 b) Elongation of 25 YO on a 40 mm x 10 mm test piece of 200mm gauge length is equivalent to 25 x 1 /0,796 = 31,4 % on 5,65 see table 4). From the examples shown it will be seen that conversions in- volving
27、other proportional gauge lengths can be obtained by prior or subsequent use of the factors shown in table 2. Tables 7 to 10 can be used to obtain some of these conver- sions, whilst tables 15 to 18 can be used to obtain elongations on fixed gauge lengths corresponding to 5.65 G. Similarly, tables 11
28、 to 14 can be used for conversion to 46 and tables 19 to 22 for elongations on fixed gauge lengths cor- responding to 46. 8 Conversion from a non-proportional gauge length to another non-proportional gauge length for test pieces of different cross- sectional areas It is preferable for this calculati
29、on to be made in two stages with an initial conversion to 5,652 x A, where K1 and K2 designate the proportionality ratios of any two test pieces. Figure 5 shows the values of A1:2 = (KI/K,),. To use figure 5 it is necessary to perform the following opera- tions : a) calculate the values of proportio
30、nality K1 = (LI/*) and K, = U,/ b) read graphically the coefficient = iK1/K210,4; c) the elongation obtained is A, = AIz2 x A,. 1) Provided cross-sectional areas are the same. Page 6 EN IS0 2566-1 : 1999 Table 4 - Conversion factors from 5.656 to non-proportional gauge lengths Factors shown under ”n
31、on-proportional gauge lengths” give the value of To convert from values on a gauge length of 5,65&to a non-proportional gauge length, multiply by the appropriate factor To convert from values on a non-proportional gauge length to 5,65&, divide by the appropriate factor. See also figures 1 and 2. Cro
32、ss-sectional area of test piece mmz 5 10 15 20 25 30 35 40 45 50 55 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 Factor for non-proportional gauge length of: 200 mm 100 mm 80 mm 50 mm 0,331 0,437 0,478 0,577 0,381
33、 0,502 0.549 0.663 0,413 0,545 O, 596 0,719 0,437 0,577 0,631 0,761 0.457 0,603 0,660 0.796 0,474 0,626 O. 684 0,826 0,489 0,645 0,706 0,852 0,502 0.663 0,725 0,875 0,514 0,679 O, 742 0,896 0,525 0,693 0,758 0,915 0,535 0,706 0,772 0,932 0,545 0,719 0,786 0,949 0.562 0,741 0.81 1 0,978 0,577 0,761 0
34、,833 1,005 0,591 0,780 0,852 1,029 0.603 0,796 0,871 1,051 0,615 0,812 0,887 1,071 0.626 0,826 0,903 1.090 0.636 0.839 0,917 1,107 0,645 0,852 O, 93 1 1,124 0,654 0.863 O, 944 1,139 0,663 0,875 0,956 1,154 0,671 0,885 O, 968 1,168 0,679 0.896 0,979 1,182 0,686 0,905 O. 990 1,195 0,693 0,915 1 .o00 1
35、,207 0,700 0,924 1,010 1,219 0,706 0,932 1,019 1,230 0,713 0,941 1,028 1,241 0,719 0,949 1,037 1,252 0,725 0,956 1,046 1,262 0,730 0.964 1,054 1,272 0,736 0,971 1,062 1,281 0,741 0,978 1,070 1,291 0,747 0,985 1,077 1,300 0,752 0,992 1.084 1,309 0,757 0.998 1,092 1,317 0,761 1,005 1.099 1,326 0,766 1
36、,011 1,105 1,334 0,771 1,017 1,112 1,342 0,775 1,023 1,118 1,350 0,780 1,029 1,125 1,357 0.784 1,034 1,131 1,365 0,788 1.040 1,137 1,372 0,792 1,045 1,143 1,379 Page 7 EN IS0 2566-1 : 1999 Table 4 /concluded/ - Conversion factors from 5,656 to non-proportional gauge lengths 400 410 420 430 440 450 4
37、60 470 480 490 500 550 600 650 700 750 800 850 900 950 lo00 1 o50 1100 1150 1200 1250 1300 1 350 1400 1 450 1500 1 550 1600 1 650 1 700 1750 1800 1850 1900 1950 2000 2 o50 2 100 2 150 2200 2 250 2300 2 350 2400 2 450 2500 2550 2600 26M) 2 700 2 750 2800 2 850 2900 2 950 3000 0,796 0.800 0,804 0,808
38、0,812 0,815 0,819 0,822 0,826 0,829 0.833 0.849 0,863 0,877 0,891 0,903 0,915 0,926 0,936 0.947 0,956 0.966 0,975 0,983 0,992 1 ,000 1.008 1,016 1,023 1,030 1,037 1.044 1,051 1,057 1.063 1,070 1,076 1.082 1,087 1,093 1.099 1,104 1,109 1,115 1.120 1,125 1,130 1,135 1,139 1,144 1,149 1,153 1,158 1,162
39、 1,167 1,171 1,175 1,179 1,183 1,187 1,191 1,051 1,056 1.061 1.066 1,071 1,076 1,080 1,085 1.090 1.094 1.099 1,120 1,139 1,158 1,175 1,191 1,207 1.222 1,236 1.249 1,262 1,274 1,286 1,298 1,309 1,320 1,330 1,340 1,350 1,359 1,369 1,378 1.386 1,395 1,403 1,411 1,419 1,427 1,435 1,442 1,450 1,457 1.464
40、 1,471 1,477 1.484 1,491 1,497 1.503 1,510 1,516 1,522 1,528 1,533 1,539 1,545 1,550 1,556 1,561 1,567 1,572 1,149 1,154 1.160 1,165 1.171 1,176 1,181 1,186 1,191 1,196 1,201 1,224 1,246 1,266 1,285 1,303 1.320 1,336 1,351 1,366 1.380 1,393 1.406 1,419 1,431 1.443 1,454 1.465 1,476 1.486 1,496 1,506
41、 1,516 1,525 1,534 1.543 1,552 1,560 1.569 1,577 1,585 1,593 1,600 1 ,- 1,615 1,623 1,630 1,637 1,644 1,651 1,657 1,664 1,670 1,677 1,683 1.689 1,695 1,701 1,707 1,713 1,719 1,386 1,393 1.400 1.406 1,413 1,419 1,426 1,432 1,438 1.444 1,450 1,477 1,503 1,528 1,550 1,572 1,592 1,612 1,630 1,648 1,665
42、1,681 1,697 1,712 1,727 1,741 1,755 1,768 1,781 1,794 1,806 1,818 1,829 1,841 1,852 1,862 1,873 1,883 1,893 1,903 1,913 1,922 1,931 1,941 1,950 1,958 1,967 1,975 1,984 1,992 2,000 2,008 2,016 2.023 2,031 2.038 2,046 2,053 2,060 2,067 2,074 Page 8 EN IS0 2566-1 : 1999 Table 5 - Conversion factors fro
43、m 46 to non-proportional gauge lengths Factors shown under “non-proportional gauge lengths“ give the value of 1.74 (9“.“ To convert from values on a gauge length of 4Js0 to a non-proportional gauge length, multiply by the appropriate factor. To convert from values on a non-proportional gauge length
44、to 4 fio, divide by the appropriate factor. See also figures 3 and 4. Cross-sectional irea of test piece mm2 5 10 15 20 25 30 35 40 45 50 55 60 70 80 90 100 110 120 130 140 150 160 1 70 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 Factor for non-proportiona
45、l gauge length of: 200 mm 100 mm 80 mm 50 mm 0.288 0,331 0,359 0.380 0.398 0,413 0,426 0.437 0.447 0,457 0,466 0.474 0.489 0,502 0,514 0,525 0,535 0.544 0,553 0,562 0.- 0,577 0,584 0,580 0,597 0.603 0.609 0,615 0,620 0,625 0,631 0,636 0.640 0,645 O, 650 0,654 0,658 o, 662 0,667 0,671 0,674 0,678 0,6
46、82 0,686 0,689 0.380 0,437 0,474 o, 502 O, 525 0.544 o, 562 O, 577 O. 590 0.603 0,615 0,625 0,645 0.662 0,678 0,693 0,706 0,718 0,730 0,741 0,751 0,761 0,770 0,779 0,788 0,796 0.804 0.81 1 0,818 0,825 0,832 0,839 0,845 0,851 0,857 0.863 0,869 0.874 O. 880 0,885 O, 890 0,895 0.900 0.905 0.909 0,416 0
47、,478 0,518 O. 549 O. 574 0,595 0,614 0,631 0.646 0,659 0,672 0.684 0,705 0.724 0,742 0,757 0,772 0,786 0.798 0,810 0,821 0.832 0,842 0,852 0,861 0,870 0,879 0,887 0,895 0.902 0,910 0,917 0,924 0,931 0.937 0,943 0,950 0,956 0,962 0,967 0,973 0,979 0,984 0.989 0.994 0,502 O, 577 O. 625 0,662 0,693 0,7
48、18 0,741 0,761 0,779 0,796 0,811 0,825 0,851 0,874 0,895 0,914 0,932 0,948 0,963 0,978 0,991 1,004 1,016 1,028 1,039 1.050 1,060 1,070 1.080 1.089 1,098 1,107 1,115 1,123 1,131 1,139 1,146 1,153 1,161 1,168 1,174 1,181 1,187 1,194 1,200 Page 9 EN IS0 2566-1 : 1999 Table 5 (concluded) - Conversion fa
49、ctors from 4& to non-proportional gauge lengths Cross-sectional 3rea of test piece mrn2 400 410 420 430 440 450 460 470 480 490 500 550 600 650 700 750 800 850 900 950 loo0 1 o50 1 100 1150 1200 1250 1300 1350 1400 1 450 1500 1560 1600 1660 1 700 1 750 1 800 1 850 1900 1 950 2000 2 o50 2 100 2 150 2 200 2 250 2 300 2 350 2400 2 450 2500 2 550 2600 2 650 2 700 2 750 2800 2 850 2900 2 950 3000 Factor for non-proportional gauge length of: 200 rnm 100 mrn 80 mm 50 mm 0,693 0,696 0,699 0,703 0,706 0,709 0,712 0,715 0,718 0,721 0,724 0,738 0,751 0,763 0,775 0,786 0,796 0.8
