1、AECMA PREN2770 88 1012311 OOOY15L 8 m- A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM prEN 2770 Issue P 1 March 1988 EDIT PAR LASSOCATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard Malesherbes. 75008 PARIS -TL. 45-63-82-85 UDC : Key words : ENGLISH VERSION Aerospace series
2、 Steel FE-PL53S Hardened and tempered 1050 900 - 900 - 1050 5 Rm 5 1220 1100 5 Rm 5 1270 Thickness of cladding on each face Dlrectlon of sample 10 I Tempereture g: flPa % I“ I Elongation 14 - 10 A50 mm - I l I Reduction I o area % - - 55 - HV 197 I l IH Hard ness HRR 5-92 2) 335 5 HV 5 383 331 5 HB
3、5 375 - APa * Shear Strength RC Bending k - a u W rf o - No Temperature 0 Time t Stress oa Elongation a Rupture stress Elongatlon at rupture - A APa * % - S *) 1 MPa = 1 N/mm2 1) 2) see ilne 98 o O a AECMA PREN2770 BA LOL231L 000415Yi m- prEN 2770 Page 5 1 Condit ion and Heat treatment Reference Des
4、ignation Notes Typical use 2 Hardened and tempered 975 10C I OQ or AQ + 625 5 5OC The rules governing the designation of semi-finished products are indicated in standard EN 260Q. When the codified designation is used, the identification code shall be as follows : 1 EN 277O1 U, ,xX, ,-I Material standard number I II I /Letter code (see 6.2) I I Appropriate dimensional standard code (see 5.3) Data concerning dimension (see EN 2600) i) Optioiial test 2) HV for arbitration General purpose steel, weIdable (TIG particularly recommended)
