1、AECMA STANDARD NORME AECMA AECMA NORM prEN 2486 Edition 2 April 1998 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. +32) 2 775 81 10 - Fax. (+3212 775 81 11 ICs : Supersedes edition 1 Descriptors : September 1981 ENGLISH VERSION ALUMINIU
2、M ALLOY 261 8 A-F CAST OR EXTRUDED FORGING STOCKS AEROSPACE SERIES ALLIAGE DALUMINIUM 2618 A-F DEMI-PRODUITS COULES OU FILES A FORGER SERIE AEROSPATIALE LUFT-UND RAUMFAHRT ALUMINIUM-LEGIERUNG 261 8 A-F GEGOSSENES ODER STRANGGEPRESSTES SCHMIEDEVORMATERIAL f AECMA (The European Association of Aerospac
3、e Industries). It will be submitted as a draft European Standard for formal vote. I Replace page 1 of the previous edition by this page 1 Declassification approved 1998-04-30 The equivalent versions in French and German languages can be supplied by B.N.A.E. - Technopolis 54 - ISS, rue Jean-Jacques R
4、ousseau 92138 ISSY - LES - MOULINEAUX CEDEX - FRANCE aecma 1998 STDmAECMA PREN ZqBb-ENGL 3998 W LIIL2333 01534372 723 W A.E .C .M .A. STAN DARD prONL486 Page 3 . ALUMINIUM ALLOY 2618 A-F Cast or extruded forging stocks Forging stocks Cast i00 mm 6 a 6 500 mm Forging stocks Extruded 25 mm 4 a 4 250 m
5、m See line 29 Forged test sample: 25 mm a 30 mm 100 6 a 6 500 See line 29. Extrusion or forged sample: 25 mm a 30 m 25 s a Q 250 L L I Others ch I total Al Si Fe Cu Mn Mg Cr Ni Zn Ti Tl+Z Element I Chemical Composition min. % 1 max. 1 lethod of melting orm lethod of production mit dimensions 1.1 Acc
6、eptance standards 1.2 Dimensional standards _ _. ondition nd ieat treatment ielivery F :ondition nd leat treatment I se est piece eat treatment ampling Delivery condition la limerisions oncerned mm hickness of )irection of sample ITemperature e Proof Stress Strength Elongation 2 u c B 340 I b 340 41
7、0 A Z - % % - Reduction of area H - RC Iardness shear Strength k K - - e - t 3ending Impact MPa.1 % - Rupture Istres3 I - A - % - I - Elongation Notes *I 1MPa = 1Nlmm 1 i) In preparation. Previous page is blank 1 prEN2486 Page 4 1 Condition and Heat treatment Reference 2 3 Solution treated 530 5 5“C/Quenched in boiling water + artificially aged 203 f 5*C/20 h 4 t t 24 h
