ASD-STAN PREN 2278-2013 Aerospace series Steel X12CrNiMoV12-3 (1 4933) 900 MPa Less than or equal to Rm Less than or equal to 1 100 MPa Bars De Less than or equal to 150 mm (Editio.pdf

1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 2278 Edition P 1 January 2013 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONRue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Supersedes edition 1 of June 197

2、9 Descriptors: ENGLISH VERSION Aerospace series Steel X12CrNiMoV12-3 (1.4933) 900 MPa Rm 1 100 MPa Bars De 150 mm Srie arospatiale Acier X12CrNiMoV12-3 (1.4933) 900 MPa Rm 1 100 MPa Barres De 150 mm Luft- und Raumfahrt Stahl X12CrNiMoV12-3 (1.4933) 900 MPa Rm 1 100 MPa Stangen De 150 mm This “Aerosp

3、ace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain fol

4、lowing member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of

5、 ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national st

6、andard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 31 January 2013 Comments should be sent within six months after the date of publication to ASD-STAN Metallic Material Domain Copyright 2013 by ASD-STAN prEN 2278:2013 (E) 2 Contents Page Forewo

7、rd 2 Introduction . 3 1 Scope 4 2 Normative references 4 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Metallic Material Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this sta

8、ndard has received approval for Publication. prEN 2278:2013 (E) 3 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. This standard has been prepared in accordance with EN 4500

9、-005. prEN 2278:2013 (E) 4 1 Scope This standard specifies the requirements relating to: Steel X12CrNiMoV12-3 (1.4933) 900 MPa Rm 1 100 MPa Bars De 150 mm for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For

10、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2043, Aerospace series Metallic materials General requirements for semi-finished product qualification (excluding forgings and castings) 1)E

11、N 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use EN 4500-005, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 005: Specific rules for steelsEN 4700-002, Aerospace s

12、eries Steel and heat resisting alloys Wrought products Technical specification Part 002: Bar and section 1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). prEN 2278:2013 (E) 5 1 Material designation Steel X12CrNiMoV12-3 (1.4933) 2 Chemical compositi

13、on % Element C Si Mn P S Cr Mo Ni V N Fe min. 0,08 0,50 11,0 1,50 2,00 0,25 0,020 Base max. 0,13 0,35 0,90 0,030 0,025 12,5 2,00 3,00 0,40 0,040 3 Method of melting Air melted 4.1 Form Bars 4.2 Method of production 4.3 Limit dimension(s) mm De 150 5 Technical specification EN 4700-002 6.1 Delivery c

14、ondition Softened Hardened and tempered Heat treatment 1 020 C 1 050 C a/ OQ or AC 640 C 6.2 Delivery condition code A U 7 Use condition Hardened and tempered Delivery condition Heat treatment Delivery condition 1 020 C 1 050 Ca/ OQ or AC 640 C Characteristics 8.1 Test sample(s) See EN 4700-002. 8.2

15、 Test piece(s) See EN 4700-002. 8.3 Heat treatment Softened Hardened and tempered 9 Dimensions concerned mm De 150 10 Thickness of cladding on each face % 11 Direction of test piece L or T b12 T Temperature C Ambient 13 Proof stress Rp0,2 MPa 750 14 Strength Rm MPa 900 Rm 1 100 15 Elongation A % 14c

16、16 Reduction of area Z % 40 17 Hardness HB 311 269 HB 331 18 Shear strength Rc MPa 19 Bending k 20 Impact strength 30 J at 20 C Notch direction T 21 C Temperature C 22 Time h 23 Stress a MPa 24 Elongation a % 25 Rupture stress R MPa 26 Elongation at rupture A % 27 Notes (see line 98) a, b, cprEN 227

17、8:2013 (E) 6 34 Grain size See EN 4700-002. 7 G 5 some 3 permitted 44 External defects See EN 4700-002. 1 Visual 50 Cleanliness/inclusion content See EN 4700-002. 7 Category 2 61 Internal defects See EN 4700-002. 7 De 75 mm class 3 75 mm De 150 mm class 2 95 Marking inspection See EN 4700-002. 96 Di

18、mensional inspection See EN 4700-002. 98 Notes aFor optimum corrosion resistance 990 C 1 030 C is recommended. b75 mm De 150 mm may be tested in L or T direction. cA 10 % if material is cold worked. 99 Typical use prEN 2278:2013 (E) 7 100 Product qualification See EN 2043. Qualification programme to be agreed between manufacturer and purchaser.