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1、BRITISH STANDARD BS 6200-4: 1989 Sampling and analysis of iron, steel and other ferrous metals Part 4: Recommendations for the order of listing elements in the chemical analysis of steel UDC 001.818:543:669.114 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:04:39 GMT+00:00 2006, Uncontrol
2、led Copy, (c) BSI BS 6200-4:1989 This British Standard, having been prepared under the direction of the Iron and Steel Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 31 December 1989 BSI 09-1999 The following BSI references relate to the wo
3、rk on this standard: Committee reference ISM/18 Draft for approval 87/44207 DC ISBN 0 580 17826 9 Foreword This Part of BS 6200 has been prepared under the direction of the Iron and Steel Standards Policy Committee. It is based on ISO/TR 6306:1989 “Chemical analysis of steel Order of listing element
4、s”, published by the International Organization for Standardization (ISO) to which it is technically equivalent. It supersedes BS 5259:1976, which is withdrawn. The sequence in which elements are listed in steel specifications and analysis reports has never been standardized and varies considerably
5、between different organizations. Although this has always been a potential source of confusion, the cost and temporary inconvenience of standardizing the order has not been considered worthwhile. The modern tendency towards international standardization and the use of computers for storing, processi
6、ng and retrieving information has greatly increased the case for standardizing the order of listing elements. This is particularly so when data from several sources are processed by a single computer. Consequently, there is a growing awareness of the long-term advantages of national and internationa
7、l standardization. Some measure of international agreement has already been achieved in steel specifications developed by ISO/TC 17/SC 4, Heat treatable and alloy steels, for the first five elements and this has been incorporated into the recommendations given in this British Standard. A British Sta
8、ndard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover
9、, an inside front cover, pages i and ii, page 1 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.Date of issueComments L
10、icensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:04:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6200-4:1989 BSI 09-1999i Contents Page ForewordInside front cover 1Scope1 2Recommendations1 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:04:39 GMT+00:00 2006, Uncontrolled Copy,
11、(c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:04:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6200-4:1989 BSI 09-19991 1 Scope This Part of BS 6200 gives recommendations for an order for listing elements determined in steels and most other iron-based alloys, excludin
12、g foundry irons, where the priorities are different. 2 Recommendations The elements are divided into four groups. These groups have no real technical significance but they are considered to provide the easiest means of readily remembering the recommended order. Group 1 includes the five elements tha
13、t are regarded as the most important in all types of steel, in the order recommended by ISO/TC 17/SC 4. Also included in this group are the three elements of next greatest importance in alloy steels. These follow the first five arranged in alphabetical order of their chemical symbols. Group 2 includ
14、es another 13 elements that are commonly determined in a wide variety of commercial steels. These are arranged in alphabetical order of their chemical symbols. Group 3 is reserved for any element not assigned a place in the set order. When more than one such element is determined they should be arra
15、nged in alphabetical order of their chemical symbols. Group 4 is reserved for hydrogen. The recommended order is thus as follows: a) C Si Mn P S Cr Mo Ni; b) Al As B Co Cu N Nb Pb Sn Ti V W Zr; c) Other elements determined, in alphabetical order of their chemical symbols; d) H. With the exception of
16、 hydrogen, elements should be reported in per cent by mass % (M/M) irrespective of the content. Hydrogen should be reported in micrograms per gram (4g/g). Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:04:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6200-4: 1989 BSI 389 Chiswick High
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