1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication prEN 2684 Edition P I February 1999 C5 Chairman Comments should be sent within six months after the date of Dublication to PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - E1200 BRUXELLES - Te
2、l. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: Descriptors: ENGLISH VERSION Aerospace series Aluminium alloy AL-P7010- T7651 Plate 6 mm 22,5MS/m I Acceptable See EN 4400-1 See EN 4400-1 I y 21,5MSlm I Not acceptable -I See EN 4400-1 61 O = 175 MPa 71 tr20d -I See EN 4400-1 The “capability clause
3、“ applies 21 See EN 4400-1 -I 1) Artificial ageing may be carried out using the following alternative single stage method heating to a temperature of 165 “C c Be 175 “C at a rate not exceeding 20 “Clh and soaking at this temperature for 6 h I t c 15 h. 2) Or A4 2 3,5 if required by the purchaser. 3) Or A40 t 3 if required by the purchaser. -I STD-AECMA PREN 2b84-ENGL 1999 = 10123& 00159b5 974 m Page 6 prEN 2684: 1999 Product qualification See EN 4400-1 Qualification programme to be agreed between manufacturer and purchaser.
