Supersedes BS EN Please see the National Foreword for information from the UK committee about voting against approval as a European . Find the most up-to-date version of BS EN at Engineering BS EN specifies rules for designating steels by means of symbolic letters and numbers to express application and principal.
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BS EN 10027-1:2016
EN steel for q EN Hot rolled st NF EN 1 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
A version 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 e versions. Steels for pressure purposes Steels for line pipe Steels for reinforcing concrete Steels for prestressing concrete Steels for or in the form of rails Flat products for cold forming except those in Table High strength steel flat products for cold forming Tin mill products steel products for packaging Symbols for steel products indicating special requirements Symbols for steel products indicating type of coating Symbols for steel products indicating treatment condition Conventional designation of steel?
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Februaryand conflicting national standards shall be withdrawn at the latest by February This European Standard supersedes CR A system of numerical designation of steels known as steel numbers is specified in EN For dated references, eb the edition cited applies.
Steel grades – Wikipedia
For undated references, the latest edition of the referenced document including any amendments applies. Numerical system EN In order to avoid ambiguity, it may be necessary to supplement these principal symbols by additional symbols identifying additional characteristics of the steel or steel product, e.
These 10072-1 symbols are given in 7. Unless otherwise specified in this European Standard the symbols used in the steel name shall be written without spaces.
So as to avoid a variety of steel names being assigned to essentially the same steel, the European Registration Office as provided for in EN shall, when a steel number is applied for, cooperate with the national standards body concerned to ensure uniform steel names.
For steels specified in standards this shall be the reference number of the relevant product standard. Details of the structures of the steel name for the steel or steel product shall be provided in the relevant product or dimensional standard.
Principal symbols for steels designated according to the chemical composition of the steel shall be assigned in accordance with 7. Where a steel is specified in the form of a steel casting, its name as specified in Tables 1 to 15 shall be preceded by the letter G. Where a bbs is produced by powder metallurgy, its name as specified in Tables 14 and 15 shall be preceded by the letters PM.
Additional symbols are divided into two groups, i. If the symbols for group 1 are inadequate to describe the steel fully, then additional symbols from group 2 may be added.
EN Designation systems for steels-prt 1-steel name_百度文库
Symbols of group 2 shall only be used in conjunction with and follow symbols of group 1. Further additional symbols for steel products may follow the additional symbols of group 1 and group 2 and shall be selected in accordance with 7.
Structural steels Principal symbols Additional symbols for steel n an Steels for pressure purposes Principal symbols G P n n n Additional symbols for steel an Steels for line pipe Principal symbols L n n n Additional symbols for steel an Steels for engineering Principal symbols G E n n n Additional symbols for e an Steels for reinforcing concrete Principal symbols B n n n Additional symbols for steel an Steels for prestressing concrete Principal symbols Additional symbols for steel n an Steels for or in the form of rails Principal symbols Additional symbols for steel n an Cu, together, where necessary, with a single digit representing 10 x the average rounded to 0.
Flat products for cold forming except those in Table 9 Ba symbols Additional een for steel an High strength steel flat products for cold forming Principal symbols Additional symbols for steel n n n an In order to keep the steel names of alloy steels as short as practical, some digits or symbols may be omitted as long as there is no risk of confusion with a similar grade.
Where the carbon content is not specified by a range, a suitably representative value shall be selected by the responsible body see 4. Additional symbols for steel an?? Where the carbon percentage content is not specified by a range, a suitable representative value shall be selected by the responsible body see 4.
An example is given for a steel having high nitrogen content see below. However, for practical reasons they are dealt with as symbols for steel products.