EN 10302:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Jekla, nikljeve in kobaltove zlitine, odporne proti lezenjuHochwarmfeste Stähle, Nickel- und KobaltlegierungenAciers et alliages a base de nickel et de cobalt résistant au fluageCreep resisting steels, nickel and cobalt alloys77.120.70Kadmij, kobalt in njune zlitineCadmium, cobalt and their alloys77.120.40Nikelj, krom in njune zlitineNickel, chromium and their alloys77.080.20JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 10302:2002SIST EN 10302:2003en01-april-2003SIST EN 10302:2003SLOVENSKI
STANDARD



SIST EN 10302:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10302May 2002ICS 77.120.01; 77.140.01; 77.150.01English versionCreep resisting steels, nickel and cobalt alloysAciers et alliages à base de nickel et de cobalt résistant aufluageHochwarmfeste Stähle, Nickel- und KobaltlegierungenThis European Standard was approved by CEN on 1 March 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10302:2002 ESIST EN 10302:2003



EN 10302:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.54Classification and designation.54.1Classification.54.2Designation.55Information to be supplied by the purchaser.65.1Mandatory information .65.2Options .66Manufacturing process.76.1General .76.2Delivery condition .77Requirements.77.1Chemical composition.77.2Mechanical properties.77.3Creep properties.77.4Surface quality.77.5Dimensions and tolerances on dimensions .87.6Calculation of mass and tolerances on mass.88Inspection and testing.88.1General.88.2Types and contents of inspection documents .88.3Specific inspection and testing.98.4Test methods.98.5Retests.99Marking.10Annex A (informative)
Applicable dimensional standards.25Annex B (informative)
Technical information on creep resisting steels, nickel and cobalt alloys.26Annex C (informative)
Preliminary reference data for long-term creep strength and stress rupturevalues.29Annex D (informative)
Guideline values for the physical properties of creep resisting steels, nickel andcobalt alloys.42Bibliography.46SIST EN 10302:2003



EN 10302:2002 (E)3ForewordThis document EN 10302:2002 has been prepared by Technical Committee ECISS/TC 23, "Stainless steels", thesecretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latestby November 2002.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association. This European Standard is considered to be a supporting standard to thoseapplication and product standards which in themselves support an essential safety requirement of a New ApproachDirective and which make reference to this European Standard.NOTE
The clauses marked with a point () contain information relating to agreements which are to be made at the time ofordering. The clauses marked with two points () contain information relating to agreements which may be made at the time ofordering.The annexes A to D are informative.This European Standard contains a Bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SIST EN 10302:2003



EN 10302:2002 (E)41 Scope1.1This European Standard covers the grades of wrought steels and alloys listed in Tables 1 and 2 whichare usually employed for components and equipment, for which the main requirement is their creepresistance under mechanical long-time stressing at temperatures above 500 C.Also heat resisting grades given in EN 10095 may be used for similar applications if so agreed.1.2This European Standard specifies the technical delivery conditions for semi-finished products, for hotor cold rolled sheet/plate and strip, hot or cold formed (cold drawn) bars, rods, wire and sections.1.3The general technical delivery conditions specified in EN 10021 apply in addition to the specificationsof this European Standard, unless otherwise specified in this European Standard.1.4This European Standard does not apply to components manufactured by further processing theproduct forms listed in 1.2 with quality characteristics altered as a result of such further processing.1.5This European Standard is not intended for aerospace and pressure purposes.1.6For steels and alloys with similar chemical composition, but intended for different applications, see theBibliography.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text, and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications applyto this European Standard only when incorporated in it by amendment or revision. For undated referencesthe latest edition of the publication referred to applies (including amendments).EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature.EN 10002-5, Metallic materials - Tensile testing - Part 5: Method of test at elevated temperature.EN 10020, Definition and classification of grades of steel.EN 10021, General technical delivery requirements for steels and iron products.EN 10027-1, Designation systems for steels - Part 1: Steel names, principal symbols.EN 10027-2, Designation systems for steels - Part 2: Numerical system.EN 10052, Vocabulary of heat treatment terms for ferrous products.EN 10079, Definition of steel products.EN 10095, Heat resisting steels and nickel alloys.EN 10163-2:1991, Delivery requirements for surface condition of hot rolled steel plates, wide flats andsections - Part 2: Plate and wide flats.EN 10204, Metallic products - Types of inspection documents.EN 10221, Surface quality classes for hot-rolled bars and rods - Technical delivery conditions.SIST EN 10302:2003



EN 10302:2002 (E)5EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanicaltesting (ISO 377:1997).prEN 10168, Steel products – Inspection documents – List of information and description.ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemicalcomposition.3 Terms and definitionsFor the purposes of this European Standard, the following term and definition apply in addition to the termsand definitions in EN 10020, EN 10021, EN 10052, EN 10079, EN ISO 377 and ISO 14284.3.1creep resisting materialssteels, nickel- or cobalt-alloys with a minimum of 8 % chromium which are characterised by good mechanicalbehaviour at temperatures above 500 C under long-range service conditions; i. e. primarily by high creepstrength or high rupture strength during long-time stressingNOTE
For supplementary information on creep resisting steels and alloys see annex B.4 Classification and designation4.1ClassificationMaterials covered in this European Standard are classified according to their structure into: martensitic steels; austenitic steels; nickel alloys; and cobalt alloys.4.2DesignationThe names and numbers of the steels (see Table 1) were formed in accordance with EN 10027-1 andEN 10027-2 respectively.NOTE
Explanation on the designation of nickel and cobalt alloys (see Table 2). name: The preceding chemical symbols indicate the main alloy elements and the figure immediatelyfollowing indicates the average content of these alloys subsequently followed by the symbol for the otheradded important alloy elements. material number: The structure is set out according to EN 10027-2 with the number 2 for the materialgroup number. This material group comprises chemically resistant and high temperature or heatresistant nickel and cobalt alloys.SIST EN 10302:2003



EN 10302:2002 (E)65 Information to be supplied by the purchaser5.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order:a) the quantity to be delivered;b) the designation of the product form (e. g. bar or rod, strip or plate);c) where an appropriate dimensional standard is available (see annex A) the number of the standard andthe indications required by this, also the nominal dimensions and tolerances;d) the type of material (steel, cobalt or nickel alloy);e) the number of this European Standard (EN 10302);f) the name or number of the steel grade, nickel or cobalt alloy (see 4.2);g) if for the relevant material in the table more than one treatment condition for the mechanical properties iscovered, the symbol for the desired heat treatment condition or work hardened condition;h) the desired process route (see symbols in Tables 5 and 6).EXAMPLE10 t rounds of a steel grade with the name X6NiCrTiMoVB25-15-2 and the number 1.4980 as specified in EN 10302 of50 mm diameter, dimensional tolerances as specified in prEN 10060, in process route 1D (see Table 6).10 t rounds prEN 10060 - 50steel EN 10302 - X6NiCrTiMoVB25-15-2+1Dor10 t rounds prEN 10060 - 50steel EN 10302 - 1.4980+1D5.2 Options A number of options are specified in this European Standard and listed below. If the purchaser does notindicate his wish to implement one of these options, the supplier shall supply in accordance with the basicspecification of this European Standard (see 5.1) :a) any requirement concerning a special melting or forming process (see 6.1);b) any requirement relating to surface quality (see 7.4);c) any requirement concerning tolerances on mass not specified in the dimensional standard (see 7.6.2);d) any requirement concerning the issue of an inspection document (see 8.2);e) any requirement concerning the method of analysis to determine the product analysis (see 8.4.1);f) any requirement concerning special marking of the products (see 9.2, 9.3 and Table 12).SIST EN 10302:2003



EN 10302:2002 (E)76 Manufacturing process6.1 General Unless a special melting or forming process is agreed when ordering, the production process for steels andalloys conforming to this European Standard shall be at the discretion of the manufacturer.6.2 Delivery condition The products shall be supplied in the delivery condition agreed in the order by reference to the process routegiven in Tables 5 and 6 and to the treatment conditions given in Tables B.1 and B.2.7 Requirements7.1 Chemical composition7.1.1The chemical composition requirements given in Tables 1 and 2 apply in respect to the castanalysis.7.1.2The product analysis may deviate from the limiting values for the cast analysis given in Tables 1 and2 by the values listed in Tables 3 and 4.7.2 Mechanical properties7.2.1Mechanical properties at room temperatureThe mechanical properties at room temperature as specified in Tables 7 and 8 apply for each specified heattreatment condition. This does not apply to the process route 1U (hot rolled, not heat treated, not descaled)and to semi-finished products. If by agreement at the time of ordering the products are to be supplied in a non-heat-treated condition, themechanical properties specified in Tables 7 and 8 shall be obtainable from reference test pieces which havereceived the appropriate heat treatment (simulated heat treatment).7.2.2Mechanical properties at elevated temperaturesThe mechanical properties at elevated temperature as specified in Tables 9 and 10 apply for each specifiedheat treatment condition. This does not apply to the process route 1U (hot rolled, not heat treated, notdescaled) and to semi-finished products. If by agreement at the time of ordering the products are to be supplied in a non-heat-treated condition, themechanical properties specified in Tables 9 and 10 shall be obtainable from reference test pieces whichhave received the appropriate heat treatment (simulated heat treatment).7.3 Creep propertiesThe creep or stress requirements as specified in annex C apply for each specified heat treatment condition.This does not apply to the process route 1U (hot rolled, not heat treated, not descaled) and to semi-finishedproducts.7.4 Surface qualitySlight surface imperfections, inherent in the production process, are permitted. If more exact requirements for the surface quality are necessary, this shall be agreed at the time ofenquiry and order.SIST EN 10302:2003



EN 10302:2002 (E)8When products are delivered in coil form, the degree and extent of such imperfections may be expected tobe greater, due to the impractibility of removing short lengths of coil. For hot-rolled quarto-plates, thespecification in EN 10163-2:1991, class A3, applies unless otherwise agreed.For long products, where appropriate, the requirements shall be on the basis of EN 10221.7.5 Dimensions and tolerances on dimensions The dimensions and the tolerances on dimensions are to be agreed at the time of enquiry and order, as faras possible with reference to the dimensional standards listed in Annex A.7.6 Calculation of mass and tolerances on mass7.6.1When calculating the nominal mass from the nominal dimensions the values given in Tables D.1 andD.2 shall be used as a basis for the density of the grade concerned.7.6.2 If the tolerances on mass are not specified in the dimensional standard listed in Annex A, theymay be agreed at the time of enquiry and order.8 Inspection and testing8.1 GeneralThe manufacturer shall carry out appropriate process control, inspection and testing to assure himself thatthe delivery complies with the requirements of the order.This includes the following: a suitable frequency of verification of the dimensions of the products, an adequate intensity of visual examination of the surface quality of the products, an appropriate frequency and type of test to ensure that the correct grade is used.The nature and frequency of these verifications, examinations and tests is determined by the manufacturer,in the light of the degree of consistency that has been determined by the evidence of the quality system. Inview of this, verifications by specific tests for these requirements are not necessary unless otherwise agreed.8.2 Types and contents of inspection documents 8.2.1At the time of ordering the issue of one of the inspection documents in accordance with EN 10204may be agreed for each delivery.8.2.2If it is agreed to issue a test report 2.2 in accordance with EN 10204 it shall indicate the followinginformation:a) the information groups A, B and Z of prEN 10168;b) the results of the cast analysis in accordance with the code numbers C71 to C92 in prEN 10168.8.2.3 If the issuing of an inspection certificate 3.1.A, 3.1.B or 3.1.C according to EN 10204 or of aninspection report 3.2 according to EN 10204 has been agreed, specific inspections according to 8.3 are to becarried out and the following information shall be given in the inspection document with the code numbersand details required by prEN 10168:SIST EN 10302:2003



EN 10302:2002 (E)9a) as under 8.2.2 a);b) as under 8.2.2 b);c) the results of the mandatory tests marked in Table 11, second column, by an m;d) the result of the optional tensile test at elevated temperature marked in Table 11, second column, by an“o” and of any other optional test or inspection agreed when ordering.8.3 Specific inspection and testing8.3.1Extent of testingThe tests to be carried out, either mandatorily (m) or by agreement (o) and the composition and size of thetest units, and the number of sample products, samples and test pieces to be taken are given in Table 11.8.3.2Selection and preparation of samples and test pieces8.3.2.1The specifications of EN ISO 377 and ISO 14284 respectively shall be observed in samplingand sample preparation. The stipulations in 8.3.2.2 apply additionally for the mechanical tests.8.3.2.2The test samples for the tensile test shall be taken in accordance with Figures 1 and 2 in such away that for flat products, they are located half-way between the centre and a longitudinal edge.The samples shall be taken from products in the delivery condition. If agreed, the samples may be takenbefore flattening for flat products or before straightening for bars. For samples to be given a simulated heattreatment the conditions for annealing, hardening and tempering shall be agreed.8.4 Test methods8.4.1 Unless otherwise agreed when ordering, the choice of a suitable physical or chemical method ofanalysis to determine the product analysis is at the discretion of the manufacturer. In cases of dispute theanalysis shall be carried out by a laboratory approved by the two parties. The method of analysis to be usedshall be agreed, where possible with reference to appropriate European Standards or EURONORMS.8.4.2The tensile test at room temperature shall be carried out in accordance with EN 10002-1. Generally,this means using proportional test pieces having a gauge length L0 = 5,65 S0. (S0 = cross-section of the testpiece). In cases of doubt and in referee testing this type of test piece shall be used.The 0,2 % proof strength, the tensile strength and elongation after fracture shall be determined.8.4.3If agreed when ordering, the tensile test at elevated temperature shall be carried out in accordancewith EN 10002-5, this generally being with proportional test pieces having a gauge length L0 = 5,65 S0. (S0= cross-section of the test piece). In cases of doubt and in referee testing these test pieces shall be used.The temperature of testing is to be agreed.The 0,2 % proof strength shall be determined.8.4.4Dimensions and dimensional tolerances of the products shall be tested in accordance with therequirements of the relevant dimensional standards, where available.8.5 RetestsSee EN 10021.SIST EN 10302:2003



EN 10302:2002 (E)109 Marking9.1Marking shall be durable.9.2 Unless otherwise agreed, the requirements listed in Table 12 apply.9.3 The method and the extent of marking and the material of marking shall, unless otherwise agreed,be at the option of the manufacturer.9.4As an alternative for items that are wrapped, bundled or boxed, the marking may be applied to thepackaging, or to a tag securely attached to it.SIST EN 10302:2003



EN 10302:2002 (E)11Dimensions in millimetresType of testRound cross-section productsRectangular cross-section productsTensileFigure 1 - Position of test pieces for steel bars and rods
160 mm diameter or thickness(longitudinal test pieces)SIST EN 10302:2003



EN 10302:2002 (E)12ProductthicknessDirection of the longitudinal axis ofthe test piece in relation to theprincipal direction of rolling at arolled width ofDistance of test piece from the rolled surfaceType of testpiece300 mm300 mm30Tensile30ongitudinaltransverseaIn cases of doubt or dispute the gauge length shall be Lo = 5,65 0S for test pieces from products t
3 mm.For products with a thickness t < 3 mm, non proportional test pieces with a gauge length of 80 mm and a width of 20 mm shall be used, but test pieceswith a gauge length of 50 mm and a width of 12,5 mm may also be applied. For products with a thickness t of 3 mm to 10 mm (or to 8 mm in case ofalloys) flat proportional test pieces with two rolled surfaces and a maximum width of 30 mm shall be used. For products with a thickness t > 10 mm (or >8 mm in case of alloys), one of the following proportional test pieces may be used:- either a flat test piece with a maximum thickness of 30 mm; the thickness may be reduced to 10 mm by machining, but one rolled surface shall bepreserved.- or a round test piece with a diameter of
5 mm the axis of which shall be located as near as possible to a plane in the outer third of half the productthickness.Key1 Rolling surface2 AlternativesFigure 2 - Position of the tensile test pieces in flat productsSIST EN 10302:2003



EN 10302:2002 (E)13Table 1 - Chemical composition (cast analysis) a of creep resisting steelsSteel designation% by massNameNumberCSiMnPmax.Smax.NAlCrMoNbNiTiVWOthersMartensitic SteelsX10CrMoVNb9-11.49030,08 to0,12 0,500,30 to0,600,0250,0150,030 to 0,070max. 0,0308,00 to 9,500,85 to1,050,060 to 0,10 0,400,18 to0,25X11CrMoWVNb9-1-11.49050,09 to0,130,10 to0,500,30 to0,600,0200,0100,050 to 0,090max. 0,0408,5 to 9,50,90 to1,100,06 to 0,100,10 to 0,400,18 to0,250,90 to 1,10B: 0,0005 to0,0050X8CrCoNiMo10-61.49110,05 to0,120,10 to0,800,30 to1,300,0250,015 0,0359,80 to 11,200,50 to1,000,20 to 0,500,20 to 1,200,10 to0,40 0,70B: 0,005 to0,015Co: 5,00 to 7,00X19CrMoNbVN11-11.49130,17 to0,23 0,500,40 to0,900,0250,0150,050 to 0,10max. 0,02010,00 to 11,500,50 to0,800,25 to 0,550,20 to 0,600,10 to0,30B: max. 0,0015X20CrMoV11-11.49220,17 to0,23 0,50 1,000,0300,03010,00 to 12,500,80 to1,200,30 to 0,800,25 to0,35X22CrMoV12-11.49230,18 to0,24 0,500,40 to0,900,0250,01511,00 to 12,500,80 to1,200,30 to 0,800,25 to0,35X20CrMoWV12-11.49350,17 to0,240,10 to0,500,30 to0,800,0250,01511,00 to 12,500,80 to1,200,30 to 0,800,20 to0,350,40 to 0,60X12CrNiMoV12-31.49380,08 to0,15 0,500,40 to0,900,0250,0150,020 to 0,04011,00 to 12,501,50 to2,002,00 to 3,000,25 to0,40Austenitic SteelsX3CrNiMoBN17-13-31.4910 0,04 0,75 2,000,0350,0150,10 to 0,1816,00 to 18,002,00 to3,0012,00 to 14,00B: 0,0015 to0,0050X6CrNiMoB17-12-21.49190,04 to0,08 1,00 2,000,0350,015 0,1116,50 to 18,502,00 to2,5010,00 to 13,00B:0,0015 to0,0050X6CrNiTiB18-101.49410,04 to0,08 1,00 2,000,0350,01517,00 to 19,009,00 to 12,005xC to 0,80B: 0,0015 to0,0050X6CrNiWNbN16-161.49450,04 to0,100,30 to0,60 1,500,0350,0150,06 to 0,1415,50 to 17,5010xC to 1,2015,50 to 17,502,50 to 3,50X5NiCrAlTi31-201.49580,03 to0,08 0,70 1,500,0150,0100,20 to 0,5019,00 to 22,00 0,1030,00 to 32,500,20 to 0,50Cu: max. 0,50X8NiCrAlTi32-211.49590,05 to0,10 0,70 1,500,0150,0100,20 to 0,6519,00 to 22,030,00 to 34,000,25 to 0,65Cu: max. 0,50X8CrNiNb16-131.49610,04 to0,100,30 to0,60 1,500,0350,01515,00 to 17,0010xC to 1,2012,00 to 14,00X12CrNiWTiB16-131.49620,07 to0,15 0,50 1,500,0350,01515,50 to 17,5012,50 to 14,500,40 to 0,702,50 to 3,00B: 0,0015 to0,0060X12CrCoNi21-201.49710,08 to0,16 1,00 2,000,0350,0150,10 to 0,2020,00 to 22,502,50 to3,500,75 to 1,2519,00 to 21,002,00 to 3,00Co: 18,50 to21,00X6NiCrTiMoVB25-15-21.49800,03 to0,08 1,001,00 to2,000,0250,015max. 0,3513,50 to 16,001,00 to1,5024,00 to 27,001,90 to 2,300,10 to0,50B: 0,0030 to0,010X8CrNiMoNb16-161.49810,04 to0,100,30 to0,60 1,500,0350,01515,50 to 17,501,60 to2,0010xC to 1,2015,50 to 17,50X6CrNiMoTiB17-131.49830,04 to0,08 0,75 2,000,0350,01516,00 to 18,002,00 to2,5012,00 to 14,005xC to 0,80B: 0,0015 to0,0060X8CrNiMoVNb16-131.49880,04 to0,100,30 to0,60 1,500,0350,0150,06 to 0,1415,50 to 17,501,10 to1,5010xC to 1,2012,50 to 14,500,60 to0,85aElements not listed in this table may not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which wouldimpair mechanical properties and the suitability of the steel.SIST EN 10302:2003



EN 10302:2002 (E)14Table 2 - Chemical composition (cast analysis) a of creep resisting nickel and cobalt alloys%'*(*'%%*'+%/-%'*+%'+%!1!$"$!%'%+%'+%%'$%%')%%'*+!'%%%'!%!'%%*'%%%'(+*'%%%'%&%'+%*'%%)%'%%*'%%*'%%%'!%*'+%"+'%%%'+%*'%%-%'%+%'$%('%%SIST EN 10302:2003



EN 10302:2002 (E)15Table 3 - Permissible product analysis tolerances on the limiting values given in Table 1 for the castanalysis of creep resisting steels""#&"#'''('('$#'*#+'',#SIST EN 10302:2003



EN 10302:2002 (E)16Table 4 - Permissible product analysis tolerances on the limiting values given in Table 2 for the castanalysis of creep resisting nickel and cobalt alloysSpecified limits, cast analysisPermissible tolerance aElement% by mass% by massCarbon> 0,15 0,015 0,25 0,01 0,02Silicon> 0,50 0,50 1,50 0,03 0,05Manganese> 1,00 1,00 2,00 0,03 0,04Phosphorus 0,030 0,005Sulfur 0,015 0,005Aluminium> 1,00 1,00 2,40 0,05 0,10Chromium> 15,00 15,00 31,00 0,15 0,25Cobalt> 5,00> 10,00> 21,00> 60,00 5,00 10,00 21,00 60,00 80,00 0,10 0,15 0,20 0,35 0,45Copper 0,50 0,05Iron> 5,00> 10,00> 20,00> 60,00 5,00 10,00 20,00 60,00 80,00 0,07 0,10 0,20 0,35 0,45Molybdenum> 1,00> 2,00> 8,00 1,00 2,00 8,00 10,00 0,03 0,05 0,10 0,15Niobium +Tantalum 5,50 0,15Nickel> 11,00> 25,00> 40,00> 60,00 11,00 25,00 40,00 60,00 80,00 0,15 0,20 0,25 0,35 0,45Titanium> 1,20 1,20 3,30 0,03 0,05aIf several product analyses are carried out on one cast, and the contents ofan individual element determined lies outside the permissible range of thec
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