1、A.E.C.M.A. STANDARD NORME A.E.C.M.A. DRAFT prEN2442 Edition 1 January 1981 A. E.C.M.A. NORM ENGLISH VERSION STEEL FE-PL711 1100 MPa 480.C I c 830% 8 85O*C/OQ I + 830OC 8 85OoC/OQI Delivery condition + temper 8 2 480G I I I Referencew :ondition and leat treatment J se rest piece 4eat treatment jampli
2、ng . se.e line 29 I Hardened I and tempered Bar: D = 16 RUII Spheroidized I Softened mm ,C 25 3imensions :oncerned rhickness of :laddins on each face 3irection of sample Temperature 8 - - Room temperature _. oc Proof I- Stress -I APa* -. I - I 3 950 I 3 1100 Pa* % % - - trength _I R, Elongation A z
3、Reduction of area I_ - Hardness H - Shear Strength R, Bending - k APa KC U 6 - - J OC h _. _ Impact l I- JIPa 2 a Istress o Elongation 1 - ; % 2 *) 1MPa = 1Nhm I), 2), 31, see line 98 . .- Notes AECMA PREN2442 BL W LOL23LL O003Lb 3 W prEN2442 Page 4 1 :ondi t ion and Heat treatment Reference Jominy
4、hardenability Notes Typical u88 2 3 4 54 Hardened and tempered 840 i. 1OoC/ OQ + temper 460 * 50C Distance in mm 5 9 15 25 40 3RC min. 49 47 37 29 - 3RC max, 59 58 54 45 3 d 0,065 2) Recommended condition for material to be cold-formed. 3) Optional test. 4) HV for De $ 5 W. Low alloy steel for bolts,
