ASD-STAN PREN 4627-2012 Aerospace series Steel X4CrNiMo16-5-1 (1 4418) Air melted Hardened and tempered Forgings De 200 mm 1 150 MPa Rm 1 300 MPa (Edition P 2).pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4627 Edition P 2 December 2012 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Supersedes editio

2、n P 1 of September 2006 and will supersede EN 4627:2007 Descriptors: ENGLISH VERSION Aerospace series Steel X4CrNiMo16-5-1 (1.4418) Air melted Hardened and tempered Forgings De 200 mm 1 150 MPa Rm 1 300 MPa Srie arospatiale Acier X4CrNiMo16-5-1 (1.4418) labor lair Tremp et revenu Pices forges De 200

3、 mm 1 150 MPa Rm 1 300 MPa Luft- und Raumfahrt Stahl X4CrNiMo16-5-1 (1.4418) Lufterschmolzen Gehrtet- und angelassen Schmiedestcke De 200 mm 1 150 MPa Rm 1 300 MPa This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Associa

4、tion 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 following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an

5、extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for form

6、al 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 standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1 December 2012 C

7、omments should be sent within six months after the date of publication to ASD-STAN Metallic Material Domain Copyright 2012 by ASD-STAN prEN 4627:2012 (E) 2 Contents Page Foreword 2 Introduction . 3 1 Scope 4 2 Normative references 4 Foreword This standard was reviewed by the Domain Technical Coordin

8、ator 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 standard has received approval for Publication. prEN 4627:2012 (E) 3 Introduction This standard is part of the series of EN met

9、allic 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 4500-005. prEN 4627:2012 (E) 4 1 Scope This standard specifies the requirements relating to: Steel X4CrNiMo16-5-1 (1.4418) Air m

10、elted Hardened and tempered Forgings De 200 mm 1 150 MPa Rm 1 300 MPa for aerospace applications. NOTE Other common designation: AIR: Z 8 CND 17-04. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editio

11、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2950, Aerospace series Test method Wrought heat resisting alloys Semi-finished products and parts Conditions for macrographic and micrographic examination Atlas of structures

12、 and defects EN 2951, Aerospace series Metallic materials Test method Micrographic determination of content of non-metallic inclusions 1)EN 4050-4, Aerospace series Test method for metallic materials Ultrasonic inspection of bars, plates, forging stock and forgings Part 4: Acceptance criteria EN 425

13、8, 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 steels EN 4629, Aerospace series St

14、eel X4CrNiMo16-5-1 (1.4418) Air melted Softened Forging stock De 300 mm EN 4700-006, Aerospace series Steel and heat resisting alloys Wrought products Technical specification Part 006: Pre-production and production forgings EN ISO 643, Steels Micrographic determination of the apparent grain size (IS

15、O 643:2003) AMS 2315, Determination of delta ferrite content 2)1) Published as ASD-STAN Standard at the date of publication of this standard (www.asd-stan.org). 2) Published as SAE National (US) Society of Automotive Engineers(http:/www.sae.org/). prEN 4627:2012 (E) 5 1 Material designation Steel X4

16、CrNiMo16-5-1 (1.4418) 2 Chemical composition % Element C Si MnaP bS bN Cr Mo Ni Fe min. 0,020 15,00 0,80 4,00 Base max. 0,06 0,70 1,50 0,030 0,005 17,00 1,50 6,00 3 Method of melting Air melted 4.1 Form Forgings 4.2 Method of production Forged from forging stock EN 4629 4.3 Limit dimension(s) mm De

17、200 5 Technical specification EN 4700-006 6.1 Delivery condition Annealed Hardened + Tempered Heat treatment 1 010 C 1 060 C / OQ or WQ c Tempered 375 C 405 C d6.2 Delivery condition code A U 7 Use condition Hardened and tempered Delivery condition Heat treatment Delivery condition 1 010 C 1 060 C /

18、 OQ or WQ b Tempered 375 C 405 C Characteristics 8.1 Test sample(s) EN 4700-006 Procedure A, B, C or D EN 4700-006 Procedure A or B (separately forged) EN 4700-006 Procedure C (integral) and Procedure D (machined from forging) 8.2 Test piece(s) See EN 4700-006. See EN 4700-006. 8.3 Heat treatment An

19、nealed Use condition Use condition 9 Dimensions concerned mm D 200 25 a or D 30 D 200 10 Thickness of cladding on each face % 11 Direction of test piece L L LT 12 T Temperature C Ambient Ambient Ambient Ambient 13 Proof stress Rp0,2 MPa 900 900 14 Strength Rm MPa 1 150 Rm 1 300 1 150 Rm 1 300 15 Elo

20、ngation A % 14 14 8 16 Reduction of area Z % 17 Hardness HBW 293 341 HBW 401 341 HBW 401 18 Shear strength RcMPa 19 Bending k 20 Impact strength KV J 100 J at 20 C Notch direction T 60 J at 30 C Notch direction T 100 J at 20 C Notch direction T 60 J at 30 C Notch direction T 50 J at 20 C Notch direc

21、tion L 20 J at 30 C Notch direction L 21 C Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 26 Elongation at rupture A % 27 Notes (see line 98) a, b, c, d prEN 4627:2012 (E) 6 30 Microstructure EN 4700-006 1 See AMS 2315. 7 The ferrite content shall not exceed 5 %.34 G

22、rain size EN 4700-006 1 See EN ISO 643. 7 G 5 44 External defects (visual) EN 4700-006 50 Cleanliness/inclusion content EN 4700-006 (micro cleanness) 1 See EN 2951. 7 Category 2 51 Macrostructure EN 4700-006 (grain flow) 1 See EN 2950. 61 Internal defects EN 4700-006 1 See EN 4050-4. 7 Class 4 95 Ma

23、rking inspection EN 4700-006 96 Dimensional inspection EN 4700-006 98 Notes a Where a more stringent impact strength is required (e.g. 20 J at 40 C direction L and 50 J at 40 C direction T), the maximum Mn content may be increased to 2 % subject to agreement between the customer and the supplier.b F

24、or specific welding applications (e.g. high power beam), and after agreement between manufacturer and purchaser, S+P should be equal or less than 0,023 %.c Air quenching may be used for De 20 mm.d The temperature range may be increased subject to agreement between the customer and the supplier. 99 Typical use prEN 4627:2012 (E) 7 100 Product qualification Qualification programme to be agreed between manufacturer and purchaser.