AECMA PREN 2920-1988 Aerospace Series Steel FE-PL72 Carburized Hardened and Tempered Forgings De less Than or Equal to 160 mm Issue P 1《航空航天系列渗碳硬化调质钢锻件FE-PL72 De小于或等于160 mm P.第1版》.pdf

1、ENGLISH VERSION Aerospace series Steel FE-PL72 Carburized, hardened and tempered Forgings De 680 9508 - 3s I - 850 11507 30 341 (HB 5415 - 1150Rm 51450 1050Rm ( 1350 Bending Impect k K Element min. Chemical Composition % 1 max. Air melted kethod of melting -orm Wethod of production ,mit dimensions F

2、orging De 5 160 um - 5.1 Technical specification EN 2157-3 5.2 Dimensional standard 5.3 Dimensional standard code Softened Heat treatment for a ferritic- pearlitic structure 5.1 Condition and heat treatment delivery C A i.?. Delivery condition code :ondition Ind ieat treatment J se Reference 2) (see

3、 p.4 line 29) Bar : D=16mm Test piece ieat treatment ;ampiing 3 imensions :oncerned for a ferritic Softened pearlitic structure 160 - rhickness of :ladding on each face L g: Room temperature MPa inPa - x Reduction I of area I- % Hardness - 229 I 159 (HB (207 Shearstrength I R, MPa - a W w U o I Nc s

4、ec Temperature O Time Ir Stress 1 0, WPa * la Elongation % Rupture Stress I OR at rupture I- A Elongation 3s ine 98 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license

5、from IHS-,-,-AECMA PREN2920 88 W 1012311 00094977 prEN 2920 Page 5 Distance (ma) HRC max. HRC min. 1 Condition and Heat trciitmrnt Reference 1,5 5 9 15 25 40 48 48 47 46 43 41 40 39 37 34 31 29 _ - Jominy hardenabillty (Hardening temperature : 860 SOC) Designation Notes Typical use 2 940 1: LOC + 86

6、0 + 10C / OQ + tempcr i90 +. IOOC i) Testing requirements for the simulated case hardening test wl.11 be contained in the EN standard 2157-2 “Inspection and testing requirements -I on the occasion of the next revision : one bar per batch. The tensile test piece will be taken in longitudinal directio

7、n from the core for bars of 11 and 30 mm diaineter; for those of 63 mm diameter at 12,s mm distance from the surface. Other sections and larger diameters will be rolled or forged to these dimensions. 2) Optional test High stressed carburized parts 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-,-,-