SIST EN 10272:2007
(Main)Stainless steel bars for pressure purposes
Stainless steel bars for pressure purposes
This document specifies the technical delivery conditions for hot and cold formed stainless steel bars for the construction of pressure equipment supplied in accordance with one of the process routes and surface finishes listed in Table 5.
The general technical delivery conditions in EN 10021 also apply.
NOTE Once this European Standard is published in the EU Official Journal (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this European Standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of Directive 97/23/EC are satisfied, needs to be done.
Stäbe aus nichtrostendem Stahl für Druckbehälter
Barres en acier inoxydable pour appareils a pression
Le présente document spécifie les conditions techniques de livraison des barres en acier inoxydable formées à chaud et à froid destinées à la construction des appareils à pression, livrées conformément à l'une des gammes de fabrication et à l'un des états de surface énumérés au Tableau 5.
Les conditions générales techniques de livraison spécifiées par la norme EN 10021 s’appliquent également.
NOTE Dès lors que la présente Norme européenne est citée dans le Journal Officiel de l’Union européenne (JO) en lien avec la Directive 97/23/CE, la présomption de conformité avec les exigences essentielles de sécurité de la Directive 97/23/CE se limite aux données techniques relatives aux matériaux spécifiées dans la présente Norme européenne et ne suppose pas l’adéquation des matériaux avec un appareil en particulier. Par conséquent, il doit être procédé à l’évaluation des données techniques spécifiées dans la présente norme de matériaux par rapport aux exigences relatives à la conception de cet équipement spécifique, afin de vérifier que les exigences essentielles de sécurité de la Directive 97/23/CE sont satisfaites.
Nerjavne jeklene palice za tlačne posode
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stainless steel bars for pressure purposesBarres en acier inoxydable pour appareils a pressionStäbe aus nichtrostendem Stahl für DruckbehälterTa slovenski standard je istoveten z:EN 10272:2007SIST EN 10272:2007en,de77.140.60Jeklene palice in drogoviSteel bars and rods77.140.30Jekla za uporabo pod tlakomSteels for pressure purposesICS:SIST EN 10272:20011DGRPHãþDSLOVENSKI
STANDARDSIST EN 10272:200701-december-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10272October 2007ICS 77.140.01Supersedes EN 10272:2000
English VersionStainless steel bars for pressure purposesBarres en acier inoxydable pour appareils à pressionStäbe aus nichtrostendem Stahl für DruckbehälterThis European Standard was approved by CEN on 23 August 2007.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 CEN 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10272:2007: E
EN 10272:2007 (E) 2 Inhalt Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.5 4 •••• Dimensions and tolerances on dimensions.5 5 Calculation of mass.5 6 Classification and designation.5 6.1 Classification.5 6.2 Designation.6 7 Information to be supplied by the purchaser.6 7.1 Mandatory information.6 7.2 Options.6 8 Requirements.7 8.1 Steelmaking process.7 8.2 •••• Delivery condition.7 8.3 Chemical composition.7 8.4 Corrosion resistance.7 8.5 Mechanical properties.8 8.6 Surface quality.8 8.7 Internal soundness.8 9 Inspection.8 9.1 Types of inspection and inspection documents.8 9.2 Tests to be carried out.9 9.3 Frequency of testing.9 9.4 Re-tests, sorting and reprocessing.9 9.5 Sampling and preparation of samples and test pieces.9 9.6 Test methods.9 10 Marking.10 Annex A (informative)
Guidelines for further treatment (including heat treatment) in fabrication.28 Annex B (informative)
Preliminary reference data for the tensile strength of austenitic-ferritic steels at elevated temperatures.32 Annex C (informative)
Reference data of strength values for creep rupture.33 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC.34 Bibliography.35
EN 10272:2007 (E) 3 Foreword This document (EN 10272:2007) has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, the secretariat 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 or by endorsement, at the latest by April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. This document supersedes EN 10272:2000. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC. For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. NOTE
The clauses marked with a point (•) contain information relating to agreements which are to be made at the time of enquiry and order. The clauses marked by two points (••) contain information relating to agreements that may be made at the time of enquiry and order. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
EN 10272:2007 (E) 4 1 Scope This document specifies the technical delivery conditions for hot and cold formed stainless steel bars for the construction of pressure equipment supplied in accordance with one of the process routes and surface finishes listed in Table 5. The general technical delivery conditions in EN 10021 also apply. NOTE Once this European Standard is published in the EU Official Journal (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this European Standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of Directive 97/23/EC are satisfied, needs to be done. 2 Normative references 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. EN 10002-1:2001, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature EN 10002-5:1991, Metallic materials — Tensile testing — Part 5: Method of testing at elevated temperature EN 10020:2000, Definition and classification of grades of steel EN 10021:2006, General technical delivery conditions for steel products EN 10045-1:1990, Metallic materials
Charpy impact test
Part 1: Test method EN 10052:1993, Vocabulary of heat treatment terms for ferrous products EN 10058, Hot rolled flat steel bars for general purposes
Dimensions and tolerances on shape and dimensions EN 10059, Hot rolled square steel bars for general purposes
Dimensions and tolerances on shape and dimensions EN 10060, Hot rolled round steel bars for general purposes
Dimensions and tolerances on shape and dimensions EN 10061, Hot rolled hexagon steel bars for general purposes
Dimensions and tolerances on shape and dimensions EN 10079:2007, Definition of steel products EN 10088-1:2005, Stainless steels
Part 1: List of stainless steels EN 10168:2004, Steel products
Inspection documents
List of information and description EN 10204:2004, Metallic products
Types of inspection documents EN 10221, Surface quality classes for hot-rolled bars and rods
Technical delivery conditions EN 10278, Dimensions and tolerances of bright steel products EN 10308, Non-destructive testing
Ultrasonic testing of steel bars
EN 10272:2007 (E) 5 EN ISO 377, Steel and steel products
Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997) EN ISO 3651-2, Determination of the resistance to intergranular corrosion of stainless steels — Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid (ISO 3651-2:1998) EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1:Test method (ISO 6506-1:2005) EN ISO 14284, Steel and iron
Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) ISO 286-1, ISO system of limits and fits
Part 1: Bases of tolerances, deviations and fits 3 Terms and definitions For the purpose of this document the terms and definitions given in EN 10020:2000,
EN 10052:1993, EN 10079:2007, EN 10088-1:2005 and the following apply. 3.1 purchaser person or organization that orders products in accordance with this document. The purchaser is not necessarily, but may be, a manufacturer of pressure equipment in accordance with the EU Directive listed in Annex ZA NOTE Where a purchaser has responsibilities under this EU Directive, this document will provide a presumption of conformity with the essential requirements of the Directive so identified in Annex ZA. 3.2 cryogenic temperature temperature lower than –75 °C used in the liquefaction of gases 4 •••• Dimensions and tolerances on dimensions The nominal dimensions and tolerances on dimensions shall be agreed at the time of enquiry and order with reference to the relevant dimensional standard EN 10058, EN 10059, EN 10060, EN 10061, EN 10278 or
ISO 286-1. If the relevant standard offers the purchaser certain options, e.g. regarding tolerance classes, specific information on these aspects shall additionally be given. 5 Calculation of mass When calculating the nominal mass from the nominal dimensions the values given in EN 10088-1 shall be used as a basis for the density of the steel concerned. 6 Classification and designation 6.1 Classification Steels covered by this document are classified according to their metallographic structure into: — ferritic steels; — martensitic steels;
EN 10272:2007 (E) 6 — austenitic steels; — austenitic-ferritic (duplex) steels. NOTE For more details see EN 10088-1. 6.2 Designation The steel grades are designated with steel names in accordance with EN 10027-1. The corresponding steel numbers have been allocated in accordance with EN 10027-2. 7 Information to be supplied by the purchaser 7.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) quantity to be delivered (mass, length, number of pieces); b) shape of bar; c) number of the standard specifying the tolerances on dimensions, shape and mass (see Clause 4); d) nominal dimensions of the product; e) number of this European Standard, i.e. EN 10272; f) steel name or the steel number; g) delivery condition (see 8.2); h) process route and surface finish (see Table 5); i) type of inspection certificate in accordance with EN 10204 (see 9.1.1). 7.2 Options A number of options are specified in this document and listed below. If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the product shall be supplied in accordance with the basic specifications (see 7.1). 1) specification of the steelmaking process (see 8.1); 2) tighter carbon ranges for martensitic steels (see Table 1, footnote b); 3) specification of a controlled sulphur content (see Table 1, footnote c or Table 2, footnote b); 4) verification of resistance to intergranular corrosion (see 8.4, 9.6.4.1 and Table 13); 5) verification of tensile properties at elevated temperature (see 8.5.2, 9.6.3 and Table 13); 6) verification of product analysis (see 9.6.1 and Table 13); 7) test temperature for the tensile test at elevated temperature (see 9.6.2.2);
EN 10272:2007 (E) 7 8) verification of impact properties of austenitic steels at room temperature (see 8.5.1, 9.6.3 and Table 13); 9) verification of impact properties at low temperature (see 8.5.1, 9.6.3 and Table 13);
10) special requirements on surface quality (see 8.6); 11) verification of internal soundness (see 8.7 and Table 13); 12) verification of the hardness (see 9.6.4.2 and Table 13); 13) special marking requirements (see 10.2). 7.3 Example of ordering 10 t rounds of 50 mm diameter, dimensional tolerances as specified in EN 10060 made of the steel grade X5CrNi18-10 (1.4301) as specified in EN 10272 to process route 1D (see Table 5), inspection certificate 3.1 as specified in EN 10204: 10 t rounds EN 10060–50– steel EN 10272–X5CrNi18-10+1D–inspection certificate 3.1 or 10 t rounds EN 10060–50– steel EN 10272–1.4301+1D–inspection certificate 3.1 8 Requirements 8.1 Steelmaking process •• Unless a special steelmaking process is agreed at the time of enquiry and order, the steelmaking process shall be at the discretion of the manufacturer. 8.2 •••• Delivery condition The products shall be supplied in the delivery condition specified in the order by reference to the process route given in Table 5 and, where different alternatives exist; to the treatment conditions given in Tables 6 to 8 (see also Annex A). 8.3 Chemical composition 8.3.1 The cast analysis reported by the steel producer shall apply and comply with the requirements of Tables 1 to 3. 8.3.2 The product analysis shall not deviate from the limiting values for the cast analysis as specified in Tables 1 to 3 by more than the values given in Table 4. 8.4 Corrosion resistance Referring to resistance to intergranular corrosion as defined in EN ISO 3651-2, for austenitic and austenitic-ferritic steels the specifications in Tables 7 and 8 apply. NOTE 1 EN ISO 3651-2 is not applicable for testing martensitic steels. NOTE 2 The corrosion resistance of stainless steels is strongly dependent on the type of environment and can therefore not always be clearly ascertained through laboratory tests. It is therefore advisable to draw on the available experience of the use of the steels.
EN 10272:2007 (E) 8 8.5 Mechanical properties 8.5.1 The tensile properties at room temperature and the impact energy at room and at low temperatures as specified in Tables 6 to 8 apply for the relevant specified heat treatment condition. NOTE Austenitic steels are insensitive to brittle fracture in the solution annealed condition. Because they do not have a pronounced transition temperature, which is characteristic for other steels, they are also useful for application at cryogenic temperatures (see also the NOTE to Tables 7 and 8). 8.5.2 The values in Tables 9 to 11 apply for the 0,2 % and, Table 10 only, additionally for the 1,0 %-proof strength at elevated temperatures. For austenitic steels, the values given in Table 12 apply for the tensile strength at elevated temperatures. Tensile strength values at elevated temperatures for austenitic-ferritic steels are given for guidance in
Table B.1. 8.5.3 For creep rupture strength values of the grade X6CrNi25-20, see Table C.1. 8.6 Surface quality See Table 5. Slight surface imperfections, inherent in the production process, are permitted. •• If more exact requirements for the surface quality are necessary, these shall be agreed at the time of enquiry and order, where appropriate, on the basis of EN 10221. 8.7 Internal soundness The products shall be sound and free from defects that preclude their intended use. •• Where appropriate, requirements together with the conditions for their verification (see 9.6.4.5 and Table 13) may be agreed at the time of enquiry and order. 9 Inspection 9.1 Types of inspection and inspection documents 9.1.1 The compliance with the requirements of the order shall be checked for products in accordance with this document by specific inspection. • The purchaser shall specify the required type of inspection certificate (3.1 or 3.2) in accordance with EN 10204. If an inspection certificate 3.2 is specified, the purchaser shall notify the manufacturer of the name and address of the organization or person who is to carry out the inspection and produce the inspection certificate. It shall also be agreed which party shall issue the certificate. 9.1.2 The inspection certificate shall include, in accordance with EN 10168, the following codes and information: A
commercial transactions and parties involved; B
description of products to which the inspection certificate applies (including tempering
temperature, where applicable); C03
test temperature;
EN 10272:2007 (E) 9 C10 to C29 tensile test at room temperature and, if applicable, at elevated temperature; C30 to C32 if applicable, hardness test; C40 to C43 if applicable, the impact test at room temperature and at low temperature; C70
steelmaking process, if applicable; C71 to C92 cast analysis and, if applicable, product analysis; D01
marking, dimensional and visual checking and, if applicable, verification of resistance to intergranular corrosion; D02 to D99
NDT, if applicable; Z
validation. 9.2 Tests to be carried out See Table 13. 9.3 Frequency of testing The composition and size of test units and the number of samples and test pieces are specified in Table 13. 9.4 Re-tests, sorting and reprocessing For retests, sorting and reprocessing the requirements of EN 10021 shall apply. 9.5 Sampling and preparation of samples and test pieces 9.5.1 Sampling and sample preparation shall be in accordance with the requirements of EN ISO 14284 and EN ISO 377. In addition, the requirements in 9.5.2 shall apply to the mechanical tests. 9.5.2 The samples shall be taken in accordance with Figures 1 and 2 for the tensile test at room temperature, the impact test and the tensile test at elevated temperatures. 9.5.3 • If, following agreement (see 9.2), the products are not to be delivered in a heat treated condition, the samples shall be heat treated prior to the test. 9.6 Test methods 9.6.1 Chemical analysis •• Unless otherwise agreed at the time of enquiry and order, the choice of a suitable physical or chemical analytical method for the product analysis shall be at the discretion of the manufacturer. In cases of dispute, the analysis shall be carried out by a laboratory approved by both parties. In this case, the analysis method to be used shall be agreed taking into account the relevant existing European Standards. The list of available documents is given in prCEN/TR 10261. 9.6.2 Tensile test 9.6.2.1 The tensile test at room temperature shall be carried out as specified in EN 10002-1, generally using a proportional test piece of gauge length L0 = 5,65 oS
(S0 = cross-sectional area of the test piece).
EN 10272:2007 (E) 10 The tensile strength, elongation after fracture and 0,2 % proof strength shall be determined and for austenitic steels additionally the 1,0 % proof strength. 9.6.2.2 The tensile test at elevated temperatures if agreed shall be carried as specified in EN 10002-5. If the tensile test at elevated temperatures is specified, the 0,2 %-proof strength shall be verified for ferritic and martensitic steels. For austenitic-ferritic steels, the 0,2 %-proof strength and the tensile strength shall be determined. In case of austenitic steels, the 0,2 %-proof strength, the 1,0 %-proof strength and the tensile strength shall be determined. •• Unless a test temperature for which values are specified has been agreed at the time of enquiry and order, the test shall be carried out 300 °C except for austenitic-ferritic steels for which the test shall be carried out at 250 °C. 9.6.3 Impact test The impact test on V-Notch test pieces shall be carried out as specified in EN 10045-1. The average values of a set of three test pieces shall be equal to or greater than the specified value. One individual value may be below the specified value, provided that it is not less than 70 % of that value. If the above conditions are not satisfied then an additional set of three test pieces may be taken at the discretion of the manufacturer from the same sample and tested. To consider the test unit as conforming, after testing the second set, the following conditions shall be satisfied simultaneously: average value of six test pieces shall be equal to or greater than the specified value; not more than two of six individual values may be lower than the specified value; not more than one of the six individual values may be lower than 70 % of the specified value. If these conditions are not satisfied the sample product is rejected and retests may be carried out on the remainder of the test unit. 9.6.4 Other tests 9.6.4.1 If a test on the resistance to intergranular corrosion has been agreed, this shall be carried out in accordance with EN ISO 3651-2. 9.6.4.2 If a Brinell hardness test has been agreed, this shall be carried out in accordance with EN ISO 6506-1. 9.6.4.3 Dimensions and dimensional tolerances of the products shall be tested in accordance with the requirements of the relevant dimensional standards, where available. 9.6.4.4 The surface condition of the products shall be checked for conformity with 8.6 by visual examination without optical aids or, at the discretion of the manufacturer, by an approved automated process. 9.6.4.5 If an ultrasonic test has been agreed for verification of internal soundness, the requirements of
EN 10308 shall apply. 10 Marking 10.1 The products or the bundle or boxes shall be marked in a suitable way such that it is possible to determine the cast, the steel grade and the origin of the delivery (see Table 14). 10.2 •• Any other marking may be agreed at the time of enquiry and order.
EN 10272:2007 (E) 11
Dimensions in mm Type of test piece Round cross-section products Rectangular cross-section products
Tensile
Impacta
a For products of a circular cross-section, the axis of the notch is approximately a diameter; for products with a rectangular
cross-section, the axis of the notch is perpendicular to the greatest rolled surface.
b Samples of product may alternatively be tested un-machined, in accordance with EN ISO 377.
Figure 1 — Position of test pieces for steel bars ≤≤≤≤ 160 mm diameter or thickness (longitudinal test pieces)
EN 10272:2007 (E) 12
Key tr transverse Figure 2 — Position of test pieces for steel bars > 160 mm diameter or thickness (transverse test pieces) NOTE The axis of the notch on the impact test pieces should be radial in the case of round steel bars, and perpendicular to the nearest rolled surface for rectangular bars.
EN 10272:2007 (E) 13 Table 1 — Chemical composition (cast analysis) a of ferritic and martensitic stainless steels Steel grade % by mass C Si Mn P S Cr Mo Ni N Steel name Steel number
max. max.max. max.
Ferritic stainless steel X2CrNi12 1.4003 ≤ 0,030 1,00 1,500,040 0,015 c 10,5 to 12,5 – 0,30 to 1,00 ≤ 0,030 Martensitic stainless steels
X12Cr13 1.4006 0,08 to 0,15 b 1,00 1,50 0,040 0,015 c 11,5 to 13,5 – ≤ 0,75 – X17CrNi16-2 1.4057 0,12 to 0,22 b 1,00 1,50 0,040 0,015 c 15,0 to 17,0 – 1,50 to 2,50 – X3CrNiMo13-4 1.4313 ≤ 0,05 0,70 1,50 0,040 0,015 12,0 to 14,0 0,30 to 0,70 3,5 to 4,5 ≥ 0,020 X4CrNiMo16-5-1 1.4418 ≤ 0,06 0,70 1,50 0,040 0,015 c 15,0 to 17,0 0,80 to 1,50 4,0 to 6,0 ≥ 0,020 a Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast.
All appropriate precautions shall be taken to avoid the addition of such elements from scrap and other materials used in production which would
impair mechanical properties and the suitability of the steel. b ••
Tighter carbon ranges may be agreed at the time of enquiry and order. c ••
Particular ranges of sulphur content may provide improvement of particular properties. For machinability, a controlled sulphur content of 0,015 % to
0,030 % is recommended and may be agreed. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and may be agreed.
EN 10272:2007 (E) 14 Table 2 — Chemical composition (cast analysis) a of austenitic stainless steels Steel grade % by mass C Si Mn P S N Cr Cu Mo Nb Ni Ti Steel name Steel number max. max. max. max. max.
X2CrNi18-9 1.4307 0,030 1,00 2,00 0,045 0,015 b ≤ 0,10 17,5 to 19,5 – – – 8,0 to 10,5 – X2CrNi19-11 1.4306 0,030 1,00 2,00 0,045 0,015 b ≤ 0,10 18,0 to 20,0 – – – 10,0 to 12,0 – X2CrNiN18-10 1.4311 0,030 1,00 2,00 0,045 0,015 b 0,12 to 0,22 17,5 to 19,5 – – – 8,5 to 11,5 – X5CrNi18-10 1.4301 0,07 1,00 2,00 0,045 0,015 b ≤ 0,10 17,5 to 19,5 – – – 8,0 to 10,5 – X6CrNiTi18-10 1.4541 0,08 1,00 2,00 0,045 0,015 b – 17,0 to 19,0 – – – 9,0 to 12,0 5 x C to 0,70 X2CrNiMo17-12-2 1.4404 0,030 1,00 2,00 0,045 0,015 b ≤ 0,10 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 13,0 – X2CrNiMoN17-11-2 1.4406 0,030 1,00 2,00 0,045 0,015 b 0,12 to 0,22 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 12,5 – X5CrNiMo17-12-2 1.4401 0,07 1,00 2,00 0,045 0,015 b ≤ 0,10 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 13,0 – X6CrNiMoTi17-12-2 1.4571 0,08 1,00 2,00 0,045 0,015 b – 16,5 to 18,5 – 2,00 to 2,50 – 10,5 to 13,5 5 x C to 0,70 X2CrNiMo17-12-3 1.4432 0,030 1,00 2,00 0,045 0,015 b ≤ 0,10 16,5 to 18,5 – 2,50 to 3,00 – 10,5 to 13,0 – X2CrNiMo18-14-3 1.4435 0,030 1,00 2,00 0,045 0,015 b ≤ 0,10 17,0 to 19,0 – 2,50 to 3,00 – 12,5 to 15,0 – X2CrNiMoN17-13-5 1.4439 0,030 1,00 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 4,0 to 5,0 – 12,5 to 14,5 – X1NiCrMoCu25-20-5 1.4539 0,020 0,70 2,00 0,030 0,010 ≤ 0,15 19,0 to 21,0 1,20 to 2,00 4,0 to 5,0 – 24,0 to 26,0 – X6CrNiNb18-10 1.4550 0,08 1,00 2,00 0,045 0,015 – 17,0 to 19,0 – – 10 x C to 1,00 9,0 to 12,0 – X6CrNiMoNb17-12-2 1.4580 0,08 1,00 2,00 0,045 0,015 – 16,5 to 18,5 – 2,00 to 2,50 10 x C to 1,00 10,5 to 13,5 – X2CrNiMoN17-13-3 1.4429 0,030 1,00 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 2,50 to 3,00 – 11,0 to 14,0 – X3CrNiMo17-13-3 1.4436 0,05 1,00 2,00 0,045 0,015 b ≤ 0,10 16,5 to 18,5 – 2,50 to 3,00 – 10,5 to 13,0 – X1NiCrMoCu31-27-4 1.4563 0,020 0,70 2,00 0,030 0,010 ≤ 0,10 26,0 to 28,0 0,70 to 1,50 3,0 to 4,0 – 30,0 to 32,0 – X1CrNiMoCuN20-18-7 1.4547 0,020 0,70 1,00 0,030 0,010 0,18 to 0,25 19,5 to 20,5 0,50 to 1,00 6,0 to 7,0 – 17,5 to 18,5 – X1NiCrMoCuN25-20-7 1.4529 0,020 0,50 1,00 0,030 0,010 0,15 to 0,25 19,0 to 21,0 0,50 to 1,50 6,0 to 7,0 – 24,0 to 26,0 – X6CrNi25-20 1.4951 0,04 to 0,08 0,70 2,00 0,035 0,015 ≤ 0,10 24,0 to 26,0 – – – 19,0 to 22,0 – a Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions shall be taken to avoid the addition of
such elements from scrap and other materials used i
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.