1、STD.AECMA PREN 3357-ENGL 3998 LOL23LL 0035388 T8b m Edition approved for publication AECMA STANDARD NORME AECMA AECMA NORM C5 Chairman Comments should be sent within six months after the date of Publication to prEN 3359 Edition P 2 December 1998 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE IND
2、USTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 1 O - Fax. (+32) 2 775 81 11 ICs: Descriptors: Supersedes issue P 1 March 1988 ENGLISH VERSION Aerospace series Steel FE-PMI 503 (X3CrNiMoAll3-8-2) Vacuum induction melted and consumable electrode remelted Softened Forging stock
3、a or DI 300 mm Srie arospatiale Acier FE-PMI 503 (X3CrNiMoAll3-8-2) labor sous vide par induction et refondu llectrode consommable Adouci Produits destins la forge a ou DI 300 mm Luft- und Raumfahrt Stahl FE-PMI503 (X3CrNiMoAl13-8-2) vakuuminduktionserschmolzen und mit selbstverzehrender Elektrode u
4、mgeschmolzen Geglht Schmiedevormaterial a oder D I 300 mm This Herospace Series” Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. it has been technically approved by the
5、experts of the concerned Technical Committee following comment by the Member countries. 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 standar
6、d. After examination and signature of the AECMA Standard Checking Centre (NPS) and formai agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. 1998-1 2-31 AECMA Gulledelle 94 8-12
7、00 BRUXELLES Mr Evetts I I I aecma 1998 - STD-AECMA PREN 3359-ENGL 1778 LOL231L 0035389 912 Page 3 prEN 3359: 1998 O 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 st
8、andard has been prepared in accordance with EN 4500-5. 1 Scope This standard specifies the requirements relating to: Steel FE-PM1503 (X3CrNiMoAll3-8-2) Vacuum induction melted and consumable electrode remelted Softened Forging stock a or D 5 300 mm for aerospace applications. 2 Normative references
9、This 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 listed hereafter. For dated references, subsequent amendments to or revisions of any of these publ
10、ications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2003-7 Aerospace series - Steel - Test methods - Part 7: Macrographic test 1) EN 2043 Aerospace series - Metallic mater
11、ials - General requirements for semi-finished product qualification (excluding forgings and castings) 1) EN 2157-2 Aerospace series - Steel forging stock and forgings - Technical specification - Part 2: Forging stock EN 4050-1 Aerospace series - Test method for metallic materials - Ultrasonic inspec
12、tion of bars, plates, forging stock and forgings - Part I : General requirements 1) EN 4258 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use EN 4436 Aerospace series - Steel - Test methods - Determination of &Ferrite
13、1) EN 4500-5 Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 5: Specific rules for steel 1) 1) Published as AECMA Prestandard at the date of publication of this standard Previous page is blank STD-AECMA PREN 3357-ENGL 1978 II 3OL2313 0035390 b
14、34 W Page 4 prEN 3359: 1998 2 I 1 I Material designation I Steel FE-PM1503 (XJCrNiMoAll3-8-2) Chemical Element C Si Mn P S Cr Mo Ni AI N2 Fe composition min. - - - - - 12,25 2,OO 7,50 0,90 - Base % max. 0,051 0,lO 0,lO 0,010 0,008 13,25 2,50 8,50 1,351 0,010 3 4.1 Method of melting Form Forging stoc
15、k Vacuum induction melted and consumable electrode remelted - 14.2 I Method of production I I 4.3 5 Limit dimension(s) mm a or D s 300 Technical specification EN 21 57-2 6.1 Delivery condition Heat treatment Softened - Il I 6.2 7 Delivety condition code U Use condition Delivery condition Characteris
16、tics Heat treatment - 18.3 I Heat treatment 8.1 8.2 See line 29 I 1 Delivery condition I Test sample(s) See EN 21 57-2 Forged or machined Test piece) See EN 2157-2 See EN 21 57-2 18 19 Shear strength R, MPa - Bending k- - I I 20 21 Impact strength - - Temperature e OC 22 Time h 23 Stress ea MPa - 24
17、 C Elongation a YO - 25 Rupture stress cR MPa - - - - - - 26 Elongation at A Yo - rupture 27 Notes (see line 98) - STD-AECMA PREN 3359-ENGL 1998 LO12313 0035391 570 Page 5 prEN 3359: 1998 - Precipitation treated 900 “C c c 950 C / t 2 30 min /AC or OC! + 530 “C 5 6s 550C / t = 4 h /AC eference heat
18、treatment 3 5 licrostructure Corresponding the top of ingot See line 29 xternal defects Jeanliness inclusion content nicro-cleanness) - - lacrostructure See EN 21 57-2 See EN 2157-2 iternal defects - 1 Marking inspection Dimensional inspection See EN 21 57-2 EN 2003-7 Notes 1 2 Typical use Freckles
19、A White spots A 3 4 EN 4436 Radial segregation A Ring pattern B 21 One per cast 1 7 EN 4050-1 Class 3 71 The &ferrite content shall not exceed 2 % - - See EN 2157-2 See EN 2 157-2 71 Category 5 71 Class I Condition I Severity -1 See EN 21 57-2 -I - -I Product qualification See EN 2043 Qualification programme to be agreed between manufacturer and purchaser.
