1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4629 Edition P 2 November 2011 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 edition P
2、1 of September 2006 and will supersede EN 4629:2007Descriptors: ENGLISH VERSION Aerospace series Steel X4CrNiMo16-5-1 (1.4418) Air melted Softened Forging stock De 300 mm Srie arospatiale Acier X4CrNiMo16-5-1 (1.4418) labor lair Adouci Demi-produits pour forgeage De 300 mm Luft- und Raumfahrt Stahl
3、X4CrNiMo16-5-1 (1.4418) Lufterschmolzen Gehrtet- und angelassen Schmiedestcke De 300 mm This “Aerospace 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 Euro
4、pean 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 extent that interchangeability is affected, physically or functionally, with
5、out 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 formal vote and transformation to full European Standard (EN). The CEN national
6、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 November 2011 Comments should be sent within six months after the date of publication to AS
7、D-STAN Metallic Material Domain Copyright 2011 by ASD-STAN prEN 4629:2011 (E) 2 Contents Page Foreword 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 carrie
8、d out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4629:2011 (E) 3 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organizatio
9、n of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-005. prEN 4629:2011 (E) 4 1 Scope This standard specifies the requirements relating to: Steel X4CrNiMo16-5-1 (1.4418) Air melted Softened Forging stock De 300 mm for aerospace applications. NOTE Othe
10、r designation: Z 8 CND 17-04. Only the chemical composition of this standard must be considered. 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
11、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 and defects EN 2951, Aerospace series Metallic mate
12、rials Test method Micrographic determination of content of non-metallic inclusions EN 4050-4, Aerospace series Test method for metallic materials Ultrasonic inspection of bars, plates, forging stock and forgings Part 4: Acceptance criteria 1)EN 4258, Aerospace series Metallic materials General organ
13、ization 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 1)EN 4700-005, Aerospace series Steel and heat resisting alloys Wrought products
14、 Technical specification Part 005: Forging stock1)EN ISO 643, Steels Micrographic determination of the apparent grain size (ISO 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
15、as SAE National (US) Society of Automotive Engineers (http:/www.sae.org/). prEN 4629:2011 (E) 5 1 Material designation Steel X4CrNiMo16-5-1 (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 o
16、f melting Air melted 4.1 Form Forging stock 4.2 Method of production 4.3 Limit dimension(s) mm De 300 5 Technical specification EN 4700-005 6.1 Delivery condition Softened Heat treatment 6.2 Delivery condition code U 7 Use condition Delivery condition Heat treatment Characteristics 8.1 Test sample(s
17、) See EN 4700-005. See EN 4700-005. 8.2 Test piece(s) See EN 4700-005. See EN 4700-005. 8.3 Heat treatment Use condition Reference (see line 29). 9 Dimensions concerned mm De 300 De 300 10 Thickness of cladding on each face % 11 Direction of test piece L LT 12 T Temperature C Ambient Ambient 13 Proo
18、f stress Rp0,2 MPa 700 14 Strength Rm MPa 900 Rm 1 050 15 Elongation A % 16 12 16 Reduction of area Z % 17 Hardness HBW 293 269 HBW 331 18 Shear strength Rc MPa 19 Bending k 20 Impact strength KV J 120 J at 20 C Notch direction T 70 J at 40 C Notch direction T 60 J at 20 C Notch direction L 35 J at
19、40 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, bprEN 4629:2011 (E) 6 29 Reference heat treatment Hardened and tempered 1 010 C 1 060 C / OQ or WQ + 550 C 620 C 30 Microstructure EN 470
20、0-005 1 See AMS 2315. 7 The ferrite content shall not exceed 5 %.44 External defects (visual) EN 4700-005 50 Cleanliness/inclusion content EN 4700-005 (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
21、-4. 7 Class 4 95 Marking inspection EN 4700-005 96 Dimensional inspection EN 4700-005 98 Notes a Where a higher impact strength is required, the maximum Mn content may be increased to 2 % subject to agreement between the customer and the supplier.b For specific welding applications (e.g. high power beam), and after agreement between manufacturer and purchaser, SP should be equal or less than 0,023 %. 99 Typical use prEN 4629:2011 (E) 7 100 Product qualification Qualification programme to be agreed between manufacturer and purchaser.
