1、AECMA PREN223B 77 303231 0002533 -_I b II_! A.E.C.M.A. STANDARD NORME A.E,C.M.A; A.E.C.M.A. NORM DRAFT prEN22 18 Edition 1 October 1977 ENGLISH VERSION . STEEL FE-PL52 S 980 MPa 4 Rm 5a*) EN2069-5 . :ondition ind ieat treatment CUPPlY Annea led Hardened and tempered i I 960Oc 40 I ._ - O Stress % Ru
2、pture Strass Elongation i at rupture c I 1MPa = 1N nm lotes dl.ameter d J- refer,to the $Ape external diameler. *- see line 98. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted with
3、out license from IHS-,-,-I -1 .- . _ prEN22i8 Page 4 AECMA PREN2238 i3 I LOi1231L O002535 T I a O r 1 2 Condit ion and Heat treatment reference !signation I_ - - Harcened and tempered 975 i 10 “C/ OQ, t Temper 625 i 5 OC 2) Atten i n 3) Optional test, s drawn t ri k of brittleness in air hardened ma
4、teria? at low cervPce gemperatures. 4) Value in brackets for strip test pieces. 5) Method to be used in case of conflict. 6) Pro0 b nd test if required, to be negotiated between manuSacEurer an8 purchaser, cII- SmXmil purpos steel, weldable (TIG particularly recommended), Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
