1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 1999-03-31 prEN 4468 Edition P 1 March 1999 Comments should be sent within six months afier the date of publication to AECMA Gulledelle 94 8-1200 BRUXELLES PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gul
2、ledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: Descriptors: ENGLISH VERSION Aerospace series Steel FE-PMI 505 (XI CrNiMoAITil2-9-2) Vacuum induction melted and consumable electrode remelted Solution treated and precipitation treated Bar a orD 150 mm Rm 2 1 300 M
3、Pa Srie arospatiale Acier FE-PM1505 (X1 CrNiMoAITil2-9-2) labor sous vide par induction et refondu llectrode consommable Mis en solution et vieilli Barres aou Drl50mm Rm 2 1 300 MPa Luft- und Raumfahrt Stahl FE-PM1505 (XlCrNiMoAITil2-9-2) Vakuuminduktionserschmolzen und mit selbstverzehrender Elektr
4、ode umgeschmolzen Lsungsgeglht und ausgelagert Stangen a oder D I 150 mm Rm 2 1 300 MPa This “Aerospace 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 be
5、en technically approved by the experts of the concerned Technical Cornmittee 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
6、re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draff European Standard to CEN (European Committee for Standardization) for formal vote. Nota
7、 - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX C5 Chairman Mr Evets I I aecma 199s Page 3 prEN 4468: 1999 O In trod uction This standard is part of the series of EN metallic material standards for aerospace applications
8、. The general organization of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-5. I Scope This standard specifies the requirements relating to: Steel FE-PM1505 (XlCrNiMoAITi12-9-2) Vacuum induction melted and consumable electrode remelted Solution treat
9、ed and precipitation treated Bar a or D 5 150 mm R, 2 1 300 MPa for aerospace applications. 2 Normative references 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
10、publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications 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 2043
11、 Aerospace series - Metallic materials - General requirements for semi-finished product qualification (excluding forgings and castings) 1) EN 4235-3 Aerospace series - Steel - Wrought products - Technical specification - Part 3: Bar and section 1) EN 4258 Aerospace series - Metallic materials - Gene
12、ral organization of standardization - Links between types of EN standards and their use EN 4436 Aerospace series - Steel - Test methods - Determination of 6 ferrite content 1) EN 4500-5 Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 5: Specif
13、ic rules for steel 1) 1) Published as AECMA Prectandard at the date of publication of this standard Previous page is blaiik 1 2 Material designation Steel FE-PM1505 (XlCrNiMoAITil2-9-2) Chemical composition % Vacuum induction melted and consumable electrode remelted I 3 I Method of melting I Element
14、 C si Mn P S Cr Mo Ni AI Ti N2 Fe min. - - - - - 11,50 1,85 8,50 0,60 0,28 - Base max. 0,015 0,lO 0,lO 0,010 0,005 12,50 2,15 9,50 0,80 0,37 0,010 14.1 I Form I Bar 5 14.2 1 Method of production Technical specification EN 4235-3 14.3 I Limit dimencion(s) I mm I aorD1150 Delivery condition Heat treat
15、ment Solution treated Solution treated and precipitation treated 820 “C I 81 860 “C I OQ, AQ or WQ + cooling to 8 I 20 “C + 525 “CI BI 545 “CI t 24 h IAC 820 “C I 81 860 “C I OQ, AQ or WQ + cooling to 82 20 “C Use condition Heat treatment Delivery condition code I W 1 U Solution treated Delivery con
16、dition and precipitation treated Delivery condition - + 525 “C 5 85 545C It 2 4 h IAC 5.3 Test sample(s) Characteristics See EN 4235-3 8.3 9 3.2 I Test piece(c) Heat treatment Delivery condition Use condition Dimensions concerned mm aorD150 aorD150 ) 75saorD5150 See EN 4235-3 10 - - Thickness of cla
17、dding on % - each face - - 11 I Direction of test piece I I L I T I Proof stress Strength - Rp0,2 MPa r 1200 2 1 200 - R, MPa 2 1 300 2 1 300 Reduction of area - Elongation 1.1%1 I 2 11 I 29 I - Z % 2 50 2 45 17 18 19 Hardness 363 HB 2 380 HB 2 380 HB - Shear strength Rc MPa - - Bending k- - - - - K
18、V 2 50 J ; Notch direction T + KV2 20 J, at -40 “C ; Notch direction T KV 2 40 J ; Notch direction L + KVr 15 J, at-40“C; Notch direction L I 20 Impact strength I Stress Elongation I Rupture stress I uR MPa - % - I MPa - I I Elongation at A Yo rupture - Notes (see line 98) 1) Page 5 prEN 4468: 1999
19、1 Microstructure EN 4436 Grain size 7 - 7 - Extemal defects The &ferrite content shall not exceed 2 % See EN 4235-3 G 16 See EN 4235-3 Cleanliness I inclusion content (micro-cleanness) 1 - Macrostructure Visual See EN 4235-3 Internal defects 7 Marking inspection Class Condition Severity 1 Freckles A
20、 Dimensional inspection Notes Typical use 2 3 21 One per cast White spots A Radial segregation A - 6 7 31 Corresponding to ingot top 4 Ring pattern B See EN 42353 a or D I 100 mm may be tested either on the product or at an earlier stage of manufacturing. Class 5 - - - See EN 42353 1) 75 mrn I a or D I 150 mm may be tested in L orT direction. - 71 Category 5 -I See EN 42353 See EN 4235-3 -I Page 6 prEN 4468: I999 Product qualification See EN 2043 Qualification programme to be agreed between manufacturer and purchaser.
