Bsi bs en 04500 001 2012

BS EN 4500-001:2012 BSI Standards Publication Aerospace series — Metallic materials — Rules for drafting and presentation of material standards Part 1: General rules BRITISH STANDARD BS EN 4500-001:2012 National foreword This British Standard is the UK implementation of EN 4500-001:2012 The UK participation in its preparation was entrusted to Technical Committee ACE/61, Metallic materials for aerospace purposes A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN 978 580 78584 ICS 49.025.05; 49.025.15 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2012 Amendments issued since publication Amd No Date Text affected BS EN 4500-001:2012 EN 4500-001 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM October 2012 ICS 49.025.05; 49.025.15 English Version Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 001: General rules Série aérospatiale - Matériaux métalliques - Règles pour la rédaction et la présentation des normes de matériaux Partie 001: Règles générales Luft- und Raumfahrt - Metallische Werkstoffe - Regeln für das Erstellen und die Gestaltung von Werkstoffnormen Teil 001: Allgemeine Regeln This European Standard was approved by CEN on 23 June 2012 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 4500-001:2012: E BS EN 4500-001:2012 EN 4500-001:2012 (E) Contents Page Foreword 3 Introduction 4 1 Scope 4 2 Normative references 4 3 Terms and definitions 6 4 Rules for drafting and presentation .6 Annex A (normative) Form .20 Annex B (normative) Form .21 Annex C (normative) Form .22 Annex D (normative) Allocation of numbers to optional lines .23 BS EN 4500-001:2012 EN 4500-001:2012 (E) Foreword This document (EN 4500-001:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN) After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN 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 April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 4500-001:2012 EN 4500-001:2012 (E) Introduction This standard is part of the series of EN metallic material standards for aerospace applications The general organization of this series is described in EN 4258 Scope This European Standard specifies the general rules for the drafting and presentation of metallic material standards for aerospace applications It is supported by additional rules specific to:  Aluminium, aluminium alloys and magnesium alloys EN 4500-2;  Heat resisting alloys EN 4500-003;  Titanium and titanium alloys EN 4500-004;  Steels EN 4500-005;  Filler metals for welding EN 4500-2 to EN 4500-005;  Filler metals for brazing EN 4500-6 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 2002-001, Aerospace series — Metallic materials — Test methods — Part 001: Tensile testing at ambient temperature EN 2032-1, Aerospace series — Metallic materials — Part 1: Conventional designation EN 2032-2, Aerospace series — Metallic materials — Part 2: Coding of metallurgical condition in delivery condition EN 2043, Aerospace series — Metallic materials — General requirements for semi-finished product qualification (excluding forgings and castings) 1) EN 4258, Aerospace series — Metallic materials — General organization of standardization — Links between types of EN standards and their use EN 4259, Aerospace series — Metallic materials — Definition of general terms 1) 1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org) BS EN 4500-001:2012 EN 4500-001:2012 (E) EN 4500-2, Aerospace series — Metallic materials — Rules for drafting and presentation of material standards — Part 2: Specific rules for aluminium, aluminium alloys and magnesium alloys EN 4500-003, Aerospace series — Metallic materials — Rules for drafting and presentation of material standards — Part 003: Specific rules for heat resisting alloys EN 4500-004, Aerospace series — Metallic materials — Rules for drafting and presentation of material standards — Part 004: Specific rules for titanium and titanium alloys BS EN 4500-001:2012 EN 4500-001:2012 (E) EN 4500-005, Aerospace series — Metallic materials — Rules for drafting and presentation of material standards — Part 005: Specific rules for steels 1) EN 4500-6, Aerospace series — Metallic materials — Rules for drafting and presentation of material standards — Part 6: Specific rules for filler metals for brazing 1) ISO 80000-1, Quantities and units — Part 1: General ISO 80000-2, Quantities and units — Part 2: Mathematical signs and symbols to be used in the natural sciences and technology ISO 80000-3, Quantities and units — Part 3: Space and time ISO 80000-4, Quantities and units — Part 4: Mechanics ISO 80000-5, Quantities and units — Part 5: Thermodynamics ISO 80000-10, Quantities and units — Part 10: Atomic and nuclear physics Terms and definitions For the purposes of this document, the terms and definitions given in EN 4259 and the following apply 3.1 alloying elements elements other than base metal, for which the mass content gives the typical characteristics of the alloy 3.2 limit dimension and equivalent diameter De the limit dimension is the maximum size, expressed as the equivalent diameter (De), in which the mechanical properties can be obtained at the specified test piece positions, when heat-treated in accordance with the material standard 4.1 Rules for drafting and presentation General NOTE Examples given in part to are only intended to illustrate the rules for drafting and presentation and may not correspond to real standardized EN products Technological development may require the use of terms additional to those listed 4.2 Page 1: Title of the material standard The title shall give sufficient information to unambiguously identify the semi-finished product, in the use condition (see 4.5.11) Consequently: the same title shall not be used for different material standards; overlapping of mechanical property limits for otherwise identical material standards shall not normally be permitted BS EN 4500-001:2012 EN 4500-001:2012 (E) Each part of the title shall consist of one or several different lines:  aerospace series;  the family of metallic material, followed by the designation of the metallic material in accordance with EN 2032-1;  method of melting, if appropriate (except for titanium and titanium alloys);  use condition and heat treatment;  the forms written in singular, or plural, in conformity with the language used and, if appropriate, the method of production and/or final intended use;  limiting dimensions;  relevant mechanical property or physical property limits, if appropriate 4.3 Page Blank, in principle Foreword, if necessary 4.4 Page Clause 0: Introduction This clause shall read:  "This standard is part of the series of EN metallic material standards for aerospace applications The general organization of this series is described in EN 4258";  "This standard has been prepared in accordance with EN 4500-2" or "EN 4500-003" or "EN 4500-004" or "EN 4500-005" or "EN 4500-6" Clause 1: Scope This clause shall read: "This standard specifies the requirements relating to:" Repeat all information in the title, presented in the same format, followed by "for aerospace applications" If necessary, further information may be added to clarify the scope NOTE Other common designation (insert designation) Clause 2: Normative references This clause shall read: "The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies." Followed by the list of documents, with their titles, to which reference is made in the text BS EN 4500-001:2012 EN 4500-001:2012 (E) 4.5 Page 4: corresponds to form given in Annex A 4.5.1 General Form is a fixed format If there is insufficient space on a line:  use notes;  repeat the line(s) Complete the relevant lines with the pertinent requirements, according to 4.5.2 to 4.5.24 Requirements (test method, frequency of testing, sample type, test piece definition, heat treatment condition of test piece, testing condition) that are already specified in the technical specification or the test method standard called up by the technical specification referenced on line 5, shall not be repeated, in this case write "See EN XXXX" If it is necessary to modify the requirements of the technical specification or test method, use notes in the table A hyphen shall be marked on those lines that are not required Values other than those mentioned on lines 2, 12, 19, 21, 23 and 25 shall be preceded by a sign depending on whether they are minimum or maximum values (, ≤, ≥) Where more than one  test method;  test condition;  test value is stated, all are mandatory except when indicated by a note, which one is to be used Symbols for sizes and units: See ISO 80000-1, ISO 80000-2, ISO 80000-3, ISO 80000-4, ISO 80000-5 and ISO 80000-10 Specific examples are given for each family of metallic material in EN 4500-2 to EN 4500-6 4.5.2 Page 4, line 1: Material designation This line shall give the family of the metallic material and the conventional designation, in accordance with EN 2032-1 4.5.3 Page 4, line 2: Chemical composition The chemical symbols of the elements shall be written in the first line of boxes, in accordance with established conventions (see ISO 80000-10) The second line of boxes shall indicate the minimum content of that element The third line of boxes shall indicate the maximum content of that element BS EN 4500-001:2012 EN 4500-001:2012 (E) 4.5.13 Page 4, line 8.2: Test piece(s) As 4.5.12 but use:  machined before heat treatment;  heat treated before machining 4.5.14 Page 4, line 8.3: Heat treatment Specify the heat treatment condition of the test sample/test pieces using one of the following terms:  delivery condition (where there is only one delivery condition specified), or the actual delivery conditions separated by vertical lines e.g annealed or hardened and tempered (for more than one delivery condition);  use condition or specify a reference heat treatment by writing "See line 29" A reference heat treatment is specified:  If the semi-finished product, made from the same material, is intended for further working in one or more use conditions each specified by a material standard; Test sample: to be cut from the stock and forged or machined to 16 mm diameter or square and heat treated to the highest tensile strength requirements or; when the actual size is smaller than 16 mm, the test sample shall be heat treated at that size  If the semi-finished product size is greater than the limit dimension; Test sample: to be cut from the stock and forged or machined to De (i.e limiting dimensions) of the material standard, heat treated at that size and test pieces taken from the specified locations The results shall comply with the mechanical properties specified for the use condition  If the semi-finished product size is less than or equal to the limit dimension; When the actual equivalent diameter in the use condition of the forging stock or bar is smaller than or equal to the limit dimension, the test sample may be heat treated at that size  If Rm ≥ 300 MPa; For specified minimum tensile strengths (Rm) greater than or equal to 300 MPa the test sample shall be machined to the test piece size, plus a machining allowance, heat treated and then machined to the final dimensions 4.5.15 Page 4, line 9: Dimensions concerned This line shall be completed using the symbols defined in 4.5.7 as follows:  If the characteristics of lines 12 to 26 not depend on a particular dimension(s) of the product, write the dimension(s) from line 4.4;  If the characteristics of lines 12 to 26 depend on particular dimensional ranges, write the dimensional ranges in columns corresponding to each characteristic value (lines 12 to 26) 12 BS EN 4500-001:2012 EN 4500-001:2012 (E) 4.5.16 Page 4, line 10: Thickness of cladding on each face This line is only used for aluminium alloys, see EN 4500-2 4.5.17 Page 4, line 11: Direction of test piece This line shall be used to indicate the direction of the test piece, relative to the semi-finished product If the direction is specified in the technical specification, write "See EN XXXX" The following direction symbols shall be used and apply to the requirements of the same column specified on lines 12 to 26 (see Table 2): Table Terms Symbols Longitudinal (lengthwise) L Long transverse (widthwise) LT Short transverse (heightwise) ST Axial Radial In principle written in full Tangential Additional test directions e.g ± 45° in L-LT plane may be specified, if applicable 4.5.18 Page 4, lines 12 to 16: Tensile (T) Line 12: Temperature On this line, write ambient or the nominal temperature at which the tensile test shall be carried out Line 13: Proof stress The proof stress values, "Rp0,2", measured at the temperature specified in line 12, shall be stated The value shall be specified using the signs defined in ISO 80000-2 Line 14: Strength The tensile strength value, "Rm", measured at the temperature specified in line 12, shall be stated The value shall be specified using the signs defined in ISO 80000-2 Line 15: Elongation The elongation in percent, "A", is based on the gauge length Lo, of 5,65 Thus, A = 5,65 So So , where So is the area of the initial cross section of the gauge length The value of "A" represents a minimum requirement and is indicated by the sign "equal to or greater than" (≥) 13 BS EN 4500-001:2012 EN 4500-001:2012 (E) If proportional or non-proportional test pieces are required such that "A" is based on a gauge length (Lo) other than 5,65 So , indicate the value of "A" using the convention given in EN 2002-1, in the appropriate column Several values obtained using different gauge lengths may be indicated in a column Indicate by a note which is to be used in cases of dispute Line 16: Reduction of area When required, the values for reduction of area, "Z", expressed in percent, normally represent a minimum which is indicated by the sign "equal to or greater than" (≥) 4.5.19 Page 4, line 17: Hardness If a hardness test is required, indicate the requirements in the appropriate column using the following symbols:  "HBW": Brinell hardness test;  "HRA", "HRB", "HRC": Rockwell hardness test where A, B, C, indicate the hardness scale;  "HV": Vickers hardness test Complete the entry using the signs ≥ or ≤, if more than one hardness test method is used, indicate the reference method to be used in case of dispute 4.5.20 Page 4, line 18: Shear strength When required, the shear strength value, "Rc", shall be shown together with the appropriate signs, ≥ or ≤ 4.5.21 Page 4, line 19: Bending Indicate the bending angle "α" in degrees (°) and the value of coefficient "k" in the appropriate thickness column given in line 19 "k" is calculated as follows: k= r a where r = bending radius; a = thickness For bending of tubes or wires, use line 37 (see Annex D) 4.5.22 Page 4, line 20: Impact strength The symbol designating the type of impact test shall be written on the line:  "KU", the Charpy impact test, "U" Notch;  "KV", the Charpy impact test, "V" Notch; or other type of impact test 14 BS EN 4500-001:2012 EN 4500-001:2012 (E) If the test is carried out at other than ambient temperature, indicate the test temperature on this line To indicate the notch direction use the same symbols as defined in 4.5.17 The grain direction of the test piece is given in line 11 Indicate the test, KU, KV or other type, followed by the sign, ≥, and the required value with the unit, J or J/cm , and the notch direction in the appropriate thickness column in line 20 4.5.23 Page 4, lines 21 to 26: Creep (C) For lines 21 to 26 it may be necessary to define the type of test piece by means of notes in line 27 For creep elongation test, use lines 21, 22, 23 and 24 For creep rupture test, use lines 21, 22, 25 and 26 Line 21: Temperature Write the nominal temperature "θ " °C at which the creep test is to be carried out Line 22: Time Write the duration of the test using the following symbols:  "t": time to specified creep elongation;  "tR": time to specified creep rupture life Use the sign "equal to or greater than" ( ≥ ), if necessary Line 23: Stress Write the creep stress "σa" Line 24: Elongation Write the elongation in percent "a", on this line This value is a maximum and shall be preceded by the sign "less than or equal to" ( ≤ ) Line 25: Rupture stress Write the rupture stress "σR" Line 26: Elongation at rupture Write the elongation in percent "A" on this line This value is a minimum and shall be preceded by the sign "equal to or greater than" ( ≥ ) 4.5.24 Page 4, line 27: Notes (see line 98) Write the list of indices in the order in which they appear in the text (see 4.6.8) 15 BS EN 4500-001:2012 EN 4500-001:2012 (E) 4.6 Page 5: Corresponds to form given in Annex B 4.6.1 General Form is not a fixed format, but always includes lines 95, 96, 98, and 99 All other lines (28 to 94) are optional Open and complete the relevant optional lines with the pertinent requirements according to 4.6.2 to 4.6.4 Where one or more of the test requirements are not specified or differ from technical specification or test method, they shall be included in the relevant line by means of one or more sub-lines numbered in accordance with 4.6.4 If there is insufficient space on a line or sub-line:  use notes;  repeat the line(s);  on the page, extend form to several pages Requirements (test method, frequency of testing, sample type, test piece definition, heat treatment condition of test piece, testing condition) that are already specified in the technical specification or test method standard, referenced by the optional line can be repeated Complete fixed lines according to 4.6.5, 4.6.6, 4.6.8 and 4.6.9 Values shall be preceded by a sign, , ≤, ≥, depending on whether they are minimum or maximum values Where more than one  test method;  test condition;  test value is stated, all are mandatory except when indicate by a note, which one is to be used Symbols for sizes and units: See ISO 80000-1, ISO 80000-2, ISO 80000-3, ISO 80000-4, ISO 80000-5 and ISO 80000-10 Specific examples are given for each family of metallic materials in EN 4500-2 to EN 4500-6 4.6.2 Page 5, line 28 This line is not used 4.6.3 Page 5, line 29: Reference heat treatment If line 8.3 refers to line 29, state the reference heat treatment on this line, using the same symbols and presentation as used for line 16 BS EN 4500-001:2012 EN 4500-001:2012 (E) 4.6.4 Page 5, lines 30 to 94 When required, optional lines 30 to 94 shall be completed as follows: Column 1: the line number (see Annex D); Column 2: the title including any necessary information to clarify the requirements; Column 3: completed with a sub-line number corresponding to the test requirements to be given in column 4; Column 4: completed in accordance with the general requirement given in 4.6, according to the following instruction and any specific requirements given in the other parts of this standard If some or all the necessary information is contained in the technical specification, the line is opened by stating "See EN XXXX" In this case a hyphen is inserted in column 3; If the technical specification or test method:  does not give any information;  only gives partial information;  or gives a choice or if the requirements differ from those given in the technical specification or test method, then sub-lines to (see below) shall be completed with the necessary information All tests required refer to the semi-finished product in the use condition, unless otherwise specified It is only necessary to complete those sub-lines for which information is required to be specified Column Line number Column Line title Column Sub-line number Column Test requirements – Technical specification Test method Frequency of testing Sample type Test piece definition Heat treatment condition of test piece Testing condition Acceptance criteria 17 BS EN 4500-001:2012 EN 4500-001:2012 (E) 4.6.5 Page 5, line 95: Marking inspection Complete with "See EN XXXX" (technical specification) 4.6.6 Page 5, line 96: Dimensional inspection Complete with "See EN XXXX" (technical specification) 4.6.7 Page 5, line 97 This line is not used 4.6.8 Page 5, line 98: Notes Write the text of the notes from line 27 on page and any others used on page 4.6.9 Page 5, line 99: Typical use When appropriate, the main use of the material may be indicated for information 4.7 Product qualification: corresponds to form given in Annex C 4.7.1 General Form is not a fixed format, but always includes line 100 The same rules that are applied to the optional lines on form 2, (see 4.6) also apply to form 4.7.2 Opening line 100 Line 100 shall begin on a new page Line 100 is opened as follows: Column 1: completed with 100; Column 2: left blank; Column 3: completed with the words "Product qualification"; Column 4: with a hyphen; Column 5: completed as follows: For all products, except castings and forgings:  if no qualification programme is available write:  18 if the technical specification contains qualification requirements:  "See EN XXXX";  "Qualification programme to be agreed between manufacturer and purchaser" BS EN 4500-001:2012 EN 4500-001:2012 (E)   if the technical specification does not contain qualification requirements:  "See EN 2043";  "Qualification programme to be agreed between manufacturer and purchaser" if a qualification programme is available write:   if the technical specification contains qualification requirements":  "See EN XXXX";  followed by the necessary information as detailed in 4.7.3 if the technical specification does not contain qualification requirements:  "See EN 2043";  followed by the necessary information as detailed in 4.7.3 For castings and forgings write:  "Qualification programme to be agreed between manufacturer and purchaser" 4.7.3 Completion of product qualification requirements Column 1: left blank; Column 2: completed with the line numbers selected from form and Annex D; Column 3: completed with the title of the line; Column and column 5: completed as follows:  if the acceptance requirements shown on page and not change, insert a hyphen in column and write in column 5:  "See line xx";  if the requirements differ from those shown on page or 5, (e.g., frequency of testing) use sublines in column and insert the requirements in column 5;  if the requirements are specific to product qualification, i.e., are not part of the routine acceptance and capability requirements shown on page or 5, insert sublines in column as necessary and complete column as already defined in 4.6.4 for page 19 BS EN 4500-001:2012 EN 4500-001:2012 (E) Annex A (normative) Form 1 Material designation Chemical Element composition % max Base Method of melting 4.1 Form 4.2 Method of production 4.3 Limit dimension(s) mm Technical specification 6.1 Delivery condition Heat treatment 6.2 Delivery condition code Use condition Heat treatment Characteristics 8.1 Test sample(s) 8.2 Test piece(s) 8.3 Heat treatment Dimensions concerned Thickness of cladding on 10 each face mm % 11 Direction of test piece 12 Temperature 13 Proof stress 14 T Strength θ °C Rp0,2 MPa Rm MPa 15 Elongation A % 16 Reduction of area Z % 17 Hardness 18 Shear strength Rc MPa 19 Bending k − θ °C 20 Impact strength 21 Temperature 22 Time h Stress σa MPa Elongation a % 25 Rupture stress σR MPa 26 Elongation at rupture A % 23 24 C 27 Notes (see line 98) 20 BS EN 4500-001:2012 EN 4500-001:2012 (E) Annex B (normative) Form 95 Marking inspection – 96 Dimensional inspection – 98 Notes – 99 Typical use – 21 BS EN 4500-001:2012 EN 4500-001:2012 (E) Annex C (normative) Form 100 – 22 Product qualification – BS EN 4500-001:2012 EN 4500-001:2012 (E) Annex D (normative) Allocation of numbers to optional lines 1) The following line numbers and titles shall be stated, if needed: (Supplementary information can be included in brackets after the line title if necessary) 28 29 – Reference heat treatment 65 66 Chemical millability (C Quality) Oxidation test 30 31 Microstructure Hardenability (Jominy test) 67 68 Contractile strain ratio (C.S.R.) Density 32 33 Electrical conductivity Flattening of tubes 69 70 Elastic modulus Compression proof stress 34 35 Grain size Repair by welding 71 72 Crack propagation Cladding chemical composition 36 37 Reverse torsion test for wires Bending of tube and wires 73 74 Post creep tensile properties Surface contamination 38 39 Corrosion Stress corrosion 75 76 Pressure impulse fatigue test of tubes Wettability 40 41 Fracture toughness Flarability 77 78 Mass per unit area Metallic alloy content 42 43 Simple torsion test for wires Wrapping test for wires 79 80 Porosity Magnetic permeability 44 45 External defects Re-crystallisation temperature 81 82 Formability of joining materials Batch uniformity 46 83 Particle size 47 Fatigue 2) Notch yield ratio 84 Cleanliness of powder 48 49 Notch sensitivity Exfoliation corrosion 85 86 Bearing stress Beta transus temperature (Ti alloys) 50 51 Cleanliness/inclusion content Macrostructure 87 88 Extrusion back - end defect Peripheral coarse grain 52 53 Formability (e.g Erichsen cupping test) Thermal analysis 89 90 Weldability – 54 55 Tube leakage Deformation under pressure of tubes 91 92 – – 56 57 Stress corrosion susceptibility (SCS) Residual stress 93 94 – – 58 59 Forgeability Decarburization 95 96 Marking inspection Dimensional inspection 60 61 Internal cleanliness of hydraulic tubes Internal defects 97 98 – Notes 62 63 Diffusion in the cladding Superplastic forming capability 99 100 Typical use Product qualification 64 Surface condition roughness 1) If there is no line number to cover the required characteristic, a line number shall be requested from the ASD-STAN Metallic Materials Domain 2) Excluding tubes for use under pressure, use line 75 23 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, 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