1、A. E.C.M. A. STAN DARD NORME A.E.C.M.A. A. E.C.M.A. NORM DRAFT prEN2438 Edition 1 January 1981 ENGLISH VERSION STEEL FE-PL62 900 MPa 550C/ OQ 8Qo.c 55OoC/0Q I Condition and Heat treatment USe Test piece Heat treatment Sampling Dimensions concerned ,C 40 - Thickness of cladding on each face Direction
2、 of sample - - Room temperature I - I 3 750 I 3 750 Hardness Shear Strength Bending Impacf Temperatura Time lelonsatlon at ruptura - 1MPa = 1N/mrn2 . l), 2), 3), see line 98 =: Notes AECMA PREN2Li38 Bl lOl231l 0003184 7 prEN2438 Page 4 1 Condi tion and Heat treatment Reference Jominy hardenability Notes Typical use 2 3 4 Hardened and tempered 850 k 10C/ OQ + temper 565 ;t SOC/ OQ Distance in mm 5 9 15 25 40 HRC min. 49 48 44 40 35 KRC max. I 58 I 57 I 55 I 53 I 50 ?) Ternperingshall be followed by oil quenching. 2) Optional test. 3) HV for De 4 5 m. Low alloy general purpose steel. -_
