1、- AECMA - PREN2q78 BL = IiOL23LL 000327J 7- - A.E.C.M.A. STANDARD DRAFT NORME A.E.C.M.A. pr E N 247 8 A. E.C.M.A. NORM Edition 1 January 1981 Approved by COMITC DE NORMALISATION of A.E.C.M.A. 1980-05-1 9 ENGLISH VERSION The equivalent venions in French and German languages can be supplied by B.N.A.E
2、., 8. rue Moreau-Vauthier 92100 BOULOGNE-BILLANCOURT - FRANCE. STEEL FE-PL75 1250 MPa 525C I Annea 1 e d I Hardened and tempered 84OOC , 1050 I b 880 Rm - A 1250 4 Rm 6 1400 1080 Q Rm ,Z 1230 - a 10 b8 - z H - % hear Strength MPa*1 Bending k - J KCU Impact I Temperature Time e Oc t - (Ja a - h MPa*)
3、 % _. - Ruptura Istres A - % - Elongation at rupture *) 1MPa = 1N/mm2 I) Optional test 2) HV for De 6 5 ri8 Notes Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license fr
4、om IHS-,-,-AECMA PREN2478 81 1012311 0003298 O m prEN2478 Page 4 1 Condi tion and Heat treatment Ref er enc e Notes rypical um 2 3 4 Hardened and tempered 850 & 10C/ OQ f temper 585 f 5C Low alloy general purpose steel. I - -L 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-,-,-
